fix test error

Merge pull request #21 from moubctez/postgresql_fixes
Enhance PostgreSQL support
2020-07-08 21:00:30 +08:00 · 2020-07-08 20:54:40 +08:00 · 2020-07-08 14:38:42 +02:00 · 2020-07-07 19:54:55 +02:00 · 2020-07-06 00:10:07 +08:00 · 2020-06-24 15:17:52 +08:00
29 changed files with 1169 additions and 676 deletions
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -8,12 +8,12 @@ jobs:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2
-      - uses: actions/setup-python@v1
+      - uses: actions/setup-python@v2
        with:
          python-version: '3.x'
+      - uses: dschep/install-poetry-action@v1.3
      - name: Build dists
-        run: |
-          python3 setup.py sdist
+        run: make build
      - name: Pypi Publish
        uses: pypa/gh-action-pypi-publish@master
        with:
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,10 +19,7 @@ jobs:
      - uses: actions/setup-python@v2
        with:
          python-version: '3.x'
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install -r requirements-dev.txt
+      - uses: dschep/install-poetry-action@v1.3
      - name: CI
        env:
          MYSQL_PASS: root
@@ -31,4 +28,4 @@ jobs:
          POSTGRES_PASS: 123456
          POSTGRES_HOST: 127.0.0.1
          POSTGRES_PORT: 5432
-        run: make testall
+        run: make ci
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,9 +1,44 @@
 =========
 ChangeLog
 =========
+0.2
+===
+
+0.2.1
+-----
+- Fix bug in windows.
+- Enhance PostgreSQL support.
+
+0.2.0
+-----
+- Update model file find method.
+- Set ``--safe`` bool.

 0.1
 ===
+0.1.9
+-----
+- Fix default_connection when upgrade
+- Find default app instead of default.
+- Diff MySQL ddl.
+- Check tortoise config.
+
+0.1.8
+-----
+- Fix upgrade error when migrate.
+- Fix init db sql error.
+- Support change column.
+
+0.1.7
+-----
+- Exclude models.Aerich.
+- Add init record when init-db.
+- Fix version num str.
+
+0.1.6
+-----
+- update dependency_links
+
 0.1.5
 -----
 - Add sqlite and postgres support.
--- a/214
+++ b/214
@@ -1,21 +1,201 @@
-The MIT License (MIT)
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-Copyright (c) 2020 long2ice
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

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--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +0,0 @@
-include LICENSE
-include README.rst
-include requirements.txt
--- a/31
+++ b/31
@@ -1,4 +1,4 @@
-checkfiles = aerich/ tests/
+checkfiles = aerich/ tests/ conftest.py
 black_opts = -l 100 -t py38
 py_warn = PYTHONDEVMODE=1
 MYSQL_HOST ?= "127.0.0.1"
@@ -12,29 +12,26 @@ help:
 	@echo  "usage: make <target>"
 	@echo  "Targets:"
 	@echo  "    up			Updates dev/test dependencies"
-	@echo  "    deps        Ensure dev/test dependencies are installed"
+	@echo  "    deps		Ensure dev/test dependencies are installed"
 	@echo  "    check		Checks that build is sane"
 	@echo  "    lint		Reports all linter violations"
 	@echo  "    test		Runs all tests"
 	@echo  "    style		Auto-formats the code"

+up:
+	@poetry update
+
 deps:
-	@which pip-sync > /dev/null || pip install -q pip-tools
-	@pip install -r requirements-dev.txt
+	@poetry install -E dbdrivers --no-root

 style: deps
-	isort -rc $(checkfiles)
+	isort -src $(checkfiles)
 	black $(black_opts) $(checkfiles)

 check: deps
-ifneq ($(shell which black),)
 	black --check $(black_opts) $(checkfiles) || (echo "Please run 'make style' to auto-fix style issues" && false)
-endif
 	flake8 $(checkfiles)
-	mypy $(checkfiles)
-	pylint -d C,W,R $(checkfiles)
-	bandit -r $(checkfiles)
-	python setup.py check -mrs
+	bandit -x tests -r $(checkfiles)

 test: deps
 	$(py_warn) TEST_DB=sqlite://:memory: py.test
@@ -50,10 +47,10 @@ test_postgres:

 testall: deps test_sqlite test_postgres test_mysql

-publish: deps
-	rm -fR dist/
-	python setup.py sdist
-	twine upload dist/*
+build: deps
+	@poetry build

-ci:
-	@act -P ubuntu-latest=nektos/act-environments-ubuntu:18.04 -b
+publish: deps
+	@poetry publish --build
+
+ci: check testall
--- a/README.md
+++ b/README.md
@@ -0,0 +1,182 @@
+# Aerich
+
+[![image](https://img.shields.io/pypi/v/aerich.svg?style=flat)](https://pypi.python.org/pypi/aerich)
+[![image](https://img.shields.io/github/license/long2ice/aerich)](https://github.com/long2ice/aerich)
+[![image](https://github.com/long2ice/aerich/workflows/pypi/badge.svg)](https://github.com/long2ice/aerich/actions?query=workflow:pypi)
+[![image](https://github.com/long2ice/aerich/workflows/test/badge.svg)](https://github.com/long2ice/aerich/actions?query=workflow:test)
+
+## Introduction
+
+Tortoise-ORM is the best asyncio ORM now, but it lacks a database
+migrations tool like alembic for SQLAlchemy, or Django ORM with it\'s
+own migrations tool.
+
+This project aim to be a best migrations tool for Tortoise-ORM and which
+written by one of contributors of Tortoise-ORM.
+
+## Install
+
+Just install from pypi:
+
+```shell
+> pip install aerich
+```
+
+## Quick Start
+
+```shell
+$ aerich -h
+
+Usage: aerich [OPTIONS] COMMAND [ARGS]...
+
+Options:
+  -c, --config TEXT  Config file.  [default: aerich.ini]
+  --app TEXT         Tortoise-ORM app name.  [default: models]
+  -n, --name TEXT    Name of section in .ini file to use for aerich config.
+                     [default: aerich]
+  -h, --help         Show this message and exit.
+
+Commands:
+  downgrade  Downgrade to previous version.
+  heads      Show current available heads in migrate location.
+  history    List all migrate items.
+  init       Init config file and generate root migrate location.
+  init-db    Generate schema and generate app migrate location.
+  migrate    Generate migrate changes file.
+  upgrade    Upgrade to latest version.
+```
+
+## Usage
+
+You need add `aerich.models` to your `Tortoise-ORM` config first,
+example:
+
+```python
+TORTOISE_ORM = {
+    "connections": {"default": "mysql://root:123456@127.0.0.1:3306/test"},
+    "apps": {
+        "models": {
+            "models": ["tests.models", "aerich.models"],
+            "default_connection": "default",
+        },
+    },
+}
+```
+
+### Initialization
+
+```shell
+$ aerich init -h
+
+Usage: aerich init [OPTIONS]
+
+  Init config file and generate root migrate location.
+
+Options:
+  -t, --tortoise-orm TEXT  Tortoise-ORM config module dict variable, like settings.TORTOISE_ORM.
+                           [required]
+  --location TEXT          Migrate store location.  [default: ./migrations]
+  -h, --help               Show this message and exit.
+```
+
+Init config file and location:
+
+```shell
+$ aerich init -t tests.backends.mysql.TORTOISE_ORM
+
+Success create migrate location ./migrations
+Success generate config file aerich.ini
+```
+
+### Init db
+
+```shell
+$ aerich init-db
+
+Success create app migrate location ./migrations/models
+Success generate schema for app "models"
+```
+
+::: {.note}
+::: {.title}
+Note
+:::
+
+If your Tortoise-ORM app is not default `models`, you must specify
+`--app` like `aerich --app other_models init-db`.
+:::
+
+### Update models and make migrate
+
+```shell
+$ aerich migrate --name drop_column
+
+Success migrate 1_202029051520102929_drop_column.json
+```
+
+Format of migrate filename is
+`{version_num}_{datetime}_{name|update}.json`
+
+### Upgrade to latest version
+
+```shell
+$ aerich upgrade
+
+Success upgrade 1_202029051520102929_drop_column.json
+```
+
+Now your db is migrated to latest.
+
+### Downgrade to previous version
+
+```shell
+$ aerich downgrade
+
+Success downgrade 1_202029051520102929_drop_column.json
+```
+
+Now your db rollback to previous version.
+
+### Show history
+
+```shell
+$ aerich history
+
+1_202029051520102929_drop_column.json
+```
+
+### Show heads to be migrated
+
+```shell
+$ aerich heads
+
+1_202029051520102929_drop_column.json
+```
+
+## Limitations
+
+- Not support `rename column` now.
+- `Sqlite` and `Postgres` may not work as expected because I don\'t
+  use those in my work.
+
+## Support this project
+
+- Just give a star!
+- Donation.
+
+### AliPay
+
+<img width="200" src="https://github.com/long2ice/aerich/raw/dev/images/alipay.jpeg"/>
+
+### WeChat Pay
+
+<img width="200" src="https://github.com/long2ice/aerich/raw/dev/images/wechatpay.jpeg"/>
+
+### PayPal
+
+Donate money by [paypal](https://www.paypal.me/long2ice) to my account long2ice.
+
+## License
+
+This project is licensed under the
+[Apache-2.0](https://github.com/long2ice/aerich/blob/master/LICENSE) License.
--- a/README.rst
+++ b/README.rst
@@ -1,160 +0,0 @@
-======
-Aerich
-======
-
-.. image:: https://img.shields.io/pypi/v/aerich.svg?style=flat
-   :target: https://pypi.python.org/pypi/aerich
-.. image:: https://img.shields.io/github/license/long2ice/aerich
-   :target: https://github.com/long2ice/aerich
-.. image:: https://github.com/long2ice/aerich/workflows/pypi/badge.svg
-   :target: https://github.com/long2ice/aerich/actions?query=workflow:pypi
-.. image:: https://github.com/long2ice/aerich/workflows/test/badge.svg
-   :target: https://github.com/long2ice/aerich/actions?query=workflow:test
-
-Introduction
-============
-
-Tortoise-ORM is the best asyncio ORM now, but it lacks a database migrations tool like alembic for SQLAlchemy, or Django ORM with it's own migrations tool.
-
-This project aim to be a best migrations tool for Tortoise-ORM and which written by one of contributors of Tortoise-ORM.
-
-Install
-=======
-
-Just install from pypi:
-
-.. code-block:: shell
-
-    $ pip install aerich
-
-Quick Start
-===========
-
-.. code-block:: shell
-
-    $ aerich -h
-
-    Usage: aerich [OPTIONS] COMMAND [ARGS]...
-
-    Options:
-      -c, --config TEXT  Config file.  [default: aerich.ini]
-      --app TEXT         Tortoise-ORM app name.  [default: models]
-      -n, --name TEXT    Name of section in .ini file to use for aerich config.
-                         [default: aerich]
-      -h, --help         Show this message and exit.
-
-    Commands:
-      downgrade  Downgrade to previous version.
-      heads      Show current available heads in migrate location.
-      history    List all migrate items.
-      init       Init config file and generate root migrate location.
-      init-db    Generate schema and generate app migrate location.
-      migrate    Generate migrate changes file.
-      upgrade    Upgrade to latest version.
-
-Usage
-=====
-You need add ``aerich.models`` to your ``Tortoise-ORM`` config first, example:
-
-.. code-block:: python
-
-    TORTOISE_ORM = {
-        "connections": {"default": "mysql://root:123456@127.0.0.1:3306/test"},
-        "apps": {
-            "models": {
-                "models": ["tests.models", "aerich.models"],
-                "default_connection": "default",
-            },
-        },
-    }
-
-Initialization
--------------
-
-.. code-block:: shell
-
-    $ aerich init -h
-
-    Usage: aerich init [OPTIONS]
-
-      Init config file and generate root migrate location.
-
-    Options:
-      -t, --tortoise-orm TEXT  Tortoise-ORM config module dict variable, like settings.TORTOISE_ORM.
-                               [required]
-      --location TEXT          Migrate store location.  [default: ./migrations]
-      -h, --help               Show this message and exit.
-
-Init config file and location:
-
-.. code-block:: shell
-
-    $ aerich init -t tests.backends.mysql.TORTOISE_ORM
-
-    Success create migrate location ./migrations
-    Success generate config file aerich.ini
-
-Init db
-------
-
-.. code-block:: shell
-
-    $ aerich init-db
-
-    Success create app migrate location ./migrations/models
-    Success generate schema for app "models"
-
-Update models and make migrate
------------------------------
-
-.. code-block:: shell
-
-    $ aerich migrate --name drop_column
-
-    Success migrate 1_202029051520102929_drop_column.json
-
-Format of migrate filename is ``{version_num}_{datetime}_{name|update}.json``
-
-Upgrade to latest version
-------------------------
-
-.. code-block:: shell
-
-    $ aerich upgrade
-
-    Success upgrade 1_202029051520102929_drop_column.json
-
-Now your db is migrated to latest.
-
-Downgrade to previous version
-----------------------------
-
-.. code-block:: shell
-
-    $ aerich downgrade
-
-    Success downgrade 1_202029051520102929_drop_column.json
-
-Now your db rollback to previous version.
-
-Show history
------------
-
-.. code-block:: shell
-
-    $ aerich history
-
-    1_202029051520102929_drop_column.json
-
-Show heads to be migrated
-------------------------
-
-.. code-block:: shell
-
-    $ aerich heads
-
-    1_202029051520102929_drop_column.json
-
-License
-=======
-This project is licensed under the `MIT <https://github.com/long2ice/aerich/blob/master/LICENSE>`_ License.
--- a/aerich/init.py
+++ b/aerich/init.py
@@ -1 +1 @@
-__version__ = "0.1.4"
+__version__ = "0.2.1"
--- a/aerich/cli.py
+++ b/aerich/cli.py
@@ -6,8 +6,10 @@ from enum import Enum

 import asyncclick as click
 from asyncclick import Context, UsageError
-from tortoise import ConfigurationError, Tortoise, generate_schema_for_client
+from tortoise import Tortoise, generate_schema_for_client
+from tortoise.exceptions import OperationalError
 from tortoise.transactions import in_transaction
+from tortoise.utils import get_schema_sql

 from aerich.migrate import Migrate
 from aerich.utils import get_app_connection, get_app_connection_name, get_tortoise_config
@@ -26,11 +28,11 @@ parser = ConfigParser()


@click.group(context_settings={"help_option_names": ["-h", "--help"]})
-@click.version_option(__version__)
+@click.version_option(__version__, "-V", "--version")
@click.option(
    "-c", "--config", default="aerich.ini", show_default=True, help="Config file.",
 )
-@click.option("--app", default="models", show_default=True, help="Tortoise-ORM app name.")
+@click.option("--app", required=False, help="Tortoise-ORM app name.")
@click.option(
    "-n",
    "--name",
@@ -43,7 +45,6 @@ async def cli(ctx: Context, config, app, name):
    ctx.ensure_object(dict)
    ctx.obj["config_file"] = config
    ctx.obj["name"] = name
-    ctx.obj["app"] = app

    invoked_subcommand = ctx.invoked_subcommand
    if invoked_subcommand != "init":
@@ -55,15 +56,15 @@ async def cli(ctx: Context, config, app, name):
        tortoise_orm = parser[name]["tortoise_orm"]

        tortoise_config = get_tortoise_config(ctx, tortoise_orm)
-
+        app = app or list(tortoise_config.get("apps").keys())[0]
+        if "aerich.models" not in tortoise_config.get("apps").get(app).get("models"):
+            raise UsageError("Check your tortoise config and add aerich.models to it.", ctx=ctx)
        ctx.obj["config"] = tortoise_config
        ctx.obj["location"] = location
+        ctx.obj["app"] = app

        if invoked_subcommand != "init-db":
-            try:
-                await Migrate.init_with_old_models(tortoise_config, app, location)
-            except ConfigurationError:
-                raise UsageError(ctx=ctx, message="You must exec init-db first")
+            await Migrate.init_with_old_models(tortoise_config, app, location)


@cli.command(help="Generate migrate changes file.")
@@ -88,15 +89,19 @@ async def upgrade(ctx: Context):
    app = ctx.obj["app"]
    migrated = False
    for version in Migrate.get_all_version_files():
-        if not await Aerich.exists(version=version, app=app):
+        try:
+            exists = await Aerich.exists(version=version, app=app)
+        except OperationalError:
+            exists = False
+        if not exists:
            async with in_transaction(get_app_connection_name(config, app)) as conn:
                file_path = os.path.join(Migrate.migrate_location, version)
-                with open(file_path, "r") as f:
+                with open(file_path, "r", encoding="utf-8") as f:
                    content = json.load(f)
                    upgrade_query_list = content.get("upgrade")
                    for upgrade_query in upgrade_query_list:
-                        await conn.execute_query(upgrade_query)
-            await Aerich.create(version=version, app=app)
+                        await conn.execute_script(upgrade_query)
+                await Aerich.create(version=version, app=app)
            click.secho(f"Success upgrade {version}", fg=Color.green)
            migrated = True
    if not migrated:
@@ -114,9 +119,11 @@ async def downgrade(ctx: Context):
    file = last_version.version
    async with in_transaction(get_app_connection_name(config, app)) as conn:
        file_path = os.path.join(Migrate.migrate_location, file)
-        with open(file_path, "r") as f:
+        with open(file_path, "r", encoding="utf-8") as f:
            content = json.load(f)
            downgrade_query_list = content.get("downgrade")
+            if not downgrade_query_list:
+                return click.secho("No downgrade item found", fg=Color.yellow)
            for downgrade_query in downgrade_query_list:
                await conn.execute_query(downgrade_query)
            await last_version.delete()
@@ -170,7 +177,7 @@ async def init(
    parser.set(name, "tortoise_orm", tortoise_orm)
    parser.set(name, "location", location)

-    with open(config_file, "w") as f:
+    with open(config_file, "w", encoding="utf-8") as f:
        parser.write(f)

    if not os.path.isdir(location):
@@ -183,7 +190,7 @@ async def init(
@cli.command(help="Generate schema and generate app migrate location.")
@click.option(
    "--safe",
-    is_flag=True,
+    type=bool,
    default=True,
    help="When set to true, creates the table only when it does not already exist.",
    show_default=True,
@@ -198,6 +205,8 @@ async def init_db(ctx: Context, safe):
    if not os.path.isdir(dirname):
        os.mkdir(dirname)
        click.secho(f"Success create app migrate location {dirname}", fg=Color.green)
+    else:
+        return click.secho(f"Inited {app} already", fg=Color.yellow)

    Migrate.write_old_models(config, app, location)

@@ -205,6 +214,15 @@ async def init_db(ctx: Context, safe):
    connection = get_app_connection(config, app)
    await generate_schema_for_client(connection, safe)

+    schema = get_schema_sql(connection, safe)
+
+    version = await Migrate.generate_version()
+    await Aerich.create(version=version, app=app)
+    with open(os.path.join(dirname, version), "w", encoding="utf-8") as f:
+        content = {
+            "upgrade": [schema],
+        }
+        json.dump(content, f, ensure_ascii=False, indent=2)
    return click.secho(f'Success generate schema for app "{app}"', fg=Color.green)


--- a/aerich/ddl/init.py
+++ b/aerich/ddl/init.py
@@ -8,16 +8,17 @@ from tortoise.fields import Field, JSONField, TextField, UUIDField
 class BaseDDL:
    schema_generator_cls: Type[BaseSchemaGenerator] = BaseSchemaGenerator
    DIALECT = "sql"
-    _DROP_TABLE_TEMPLATE = "DROP TABLE IF EXISTS {table_name}"
-    _ADD_COLUMN_TEMPLATE = "ALTER TABLE {table_name} ADD {column}"
-    _DROP_COLUMN_TEMPLATE = "ALTER TABLE {table_name} DROP COLUMN {column_name}"
+    _DROP_TABLE_TEMPLATE = 'DROP TABLE IF EXISTS "{table_name}"'
+    _ADD_COLUMN_TEMPLATE = 'ALTER TABLE "{table_name}" ADD {column}'
+    _DROP_COLUMN_TEMPLATE = 'ALTER TABLE "{table_name}" DROP COLUMN "{column_name}"'
    _ADD_INDEX_TEMPLATE = (
-        "ALTER TABLE {table_name} ADD {unique} INDEX {index_name} ({column_names})"
+        'ALTER TABLE "{table_name}" ADD {unique} INDEX "{index_name}" ({column_names})'
    )
-    _DROP_INDEX_TEMPLATE = "ALTER TABLE {table_name} DROP INDEX {index_name}"
-    _ADD_FK_TEMPLATE = "ALTER TABLE {table_name} ADD CONSTRAINT `{fk_name}` FOREIGN KEY (`{db_column}`) REFERENCES `{table}` (`{field}`) ON DELETE {on_delete}"
-    _DROP_FK_TEMPLATE = "ALTER TABLE {table_name} DROP FOREIGN KEY {fk_name}"
-    _M2M_TABLE_TEMPLATE = "CREATE TABLE {table_name} ({backward_key} {backward_type} NOT NULL REFERENCES {backward_table} ({backward_field}) ON DELETE CASCADE,{forward_key} {forward_type} NOT NULL REFERENCES {forward_table} ({forward_field}) ON DELETE CASCADE){extra}{comment};"
+    _DROP_INDEX_TEMPLATE = 'ALTER TABLE "{table_name}" DROP INDEX "{index_name}"'
+    _ADD_FK_TEMPLATE = 'ALTER TABLE "{table_name}" ADD CONSTRAINT "{fk_name}" FOREIGN KEY ("{db_column}") REFERENCES "{table}" ("{field}") ON DELETE {on_delete}'
+    _DROP_FK_TEMPLATE = 'ALTER TABLE "{table_name}" DROP FOREIGN KEY "{fk_name}"'
+    _M2M_TABLE_TEMPLATE = 'CREATE TABLE "{table_name}" ("{backward_key}" {backward_type} NOT NULL REFERENCES "{backward_table}" ("{backward_field}") ON DELETE CASCADE,"{forward_key}" {forward_type} NOT NULL REFERENCES "{forward_table}" ("{forward_field}") ON DELETE CASCADE){extra}{comment};'
+    _MODIFY_COLUMN_TEMPLATE = 'ALTER TABLE "{table_name}" MODIFY COLUMN {column}'

    def __init__(self, client: "BaseDBAsyncClient"):
        self.client = client
@@ -51,7 +52,7 @@ class BaseDDL:
    def drop_m2m(self, field: ManyToManyFieldInstance):
        return self._DROP_TABLE_TEMPLATE.format(table_name=field.through)

-    def add_column(self, model: "Type[Model]", field_object: Field):
+    def _get_default(self, model: "Type[Model]", field_object: Field):
        db_table = model._meta.db_table
        default = field_object.default
        db_column = field_object.model_field_name
@@ -74,6 +75,11 @@ class BaseDDL:
                    default = ""
        else:
            default = ""
+        return default
+
+    def add_column(self, model: "Type[Model]", field_object: Field):
+        db_table = model._meta.db_table
+
        return self._ADD_COLUMN_TEMPLATE.format(
            table_name=db_table,
            column=self.schema_generator._create_string(
@@ -89,7 +95,7 @@ class BaseDDL:
                if field_object.description
                else "",
                is_primary_key=field_object.pk,
-                default=default,
+                default=self._get_default(model, field_object),
            ),
        )

@@ -98,6 +104,27 @@ class BaseDDL:
            table_name=model._meta.db_table, column_name=column_name
        )

+    def modify_column(self, model: "Type[Model]", field_object: Field):
+        db_table = model._meta.db_table
+        return self._MODIFY_COLUMN_TEMPLATE.format(
+            table_name=db_table,
+            column=self.schema_generator._create_string(
+                db_column=field_object.model_field_name,
+                field_type=field_object.get_for_dialect(self.DIALECT, "SQL_TYPE"),
+                nullable="NOT NULL" if not field_object.null else "",
+                unique="",
+                comment=self.schema_generator._column_comment_generator(
+                    table=db_table,
+                    column=field_object.model_field_name,
+                    comment=field_object.description,
+                )
+                if field_object.description
+                else "",
+                is_primary_key=field_object.pk,
+                default=self._get_default(model, field_object),
+            ),
+        )
+
    def add_index(self, model: "Type[Model]", field_names: List[str], unique=False):
        return self._ADD_INDEX_TEMPLATE.format(
            unique="UNIQUE" if unique else "",
@@ -152,3 +179,12 @@ class BaseDDL:
                to_field=to_field_name,
            ),
        )
+
+    def alter_column_default(self, model: "Type[Model]", field_object: Field):
+        pass
+
+    def alter_column_null(self, model: "Type[Model]", field_object: Field):
+        pass
+
+    def set_comment(self, model: "Type[Model]", field_object: Field):
+        pass
--- a/aerich/ddl/mysql/init.py
+++ b/aerich/ddl/mysql/init.py
@@ -6,3 +6,14 @@ from aerich.ddl import BaseDDL
 class MysqlDDL(BaseDDL):
    schema_generator_cls = MySQLSchemaGenerator
    DIALECT = MySQLSchemaGenerator.DIALECT
+    _DROP_TABLE_TEMPLATE = "DROP TABLE IF EXISTS `{table_name}`"
+    _ADD_COLUMN_TEMPLATE = "ALTER TABLE `{table_name}` ADD {column}"
+    _DROP_COLUMN_TEMPLATE = "ALTER TABLE `{table_name}` DROP COLUMN `{column_name}`"
+    _ADD_INDEX_TEMPLATE = (
+        "ALTER TABLE `{table_name}` ADD {unique} INDEX `{index_name}` ({column_names})"
+    )
+    _DROP_INDEX_TEMPLATE = "ALTER TABLE `{table_name}` DROP INDEX `{index_name}`"
+    _ADD_FK_TEMPLATE = "ALTER TABLE `{table_name}` ADD CONSTRAINT `{fk_name}` FOREIGN KEY (`{db_column}`) REFERENCES `{table}` (`{field}`) ON DELETE {on_delete}"
+    _DROP_FK_TEMPLATE = "ALTER TABLE `{table_name}` DROP FOREIGN KEY `{fk_name}`"
+    _M2M_TABLE_TEMPLATE = "CREATE TABLE `{table_name}` (`{backward_key}` {backward_type} NOT NULL REFERENCES `{backward_table}` (`{backward_field}`) ON DELETE CASCADE,`{forward_key}` {forward_type} NOT NULL REFERENCES `{forward_table}` (`{forward_field}`) ON DELETE CASCADE){extra}{comment};"
+    _MODIFY_COLUMN_TEMPLATE = "ALTER TABLE `{table_name}` MODIFY COLUMN {column}"
--- a/aerich/ddl/postgres/init.py
+++ b/aerich/ddl/postgres/init.py
@@ -1,4 +1,8 @@
+from typing import Type
+
+from tortoise import Model
 from tortoise.backends.asyncpg.schema_generator import AsyncpgSchemaGenerator
+from tortoise.fields import Field

 from aerich.ddl import BaseDDL

@@ -6,3 +10,40 @@ from aerich.ddl import BaseDDL
 class PostgresDDL(BaseDDL):
    schema_generator_cls = AsyncpgSchemaGenerator
    DIALECT = AsyncpgSchemaGenerator.DIALECT
+    _ALTER_DEFAULT_TEMPLATE = 'ALTER TABLE "{table_name}" ALTER COLUMN "{column}" {default}'
+    _ALTER_NULL_TEMPLATE = 'ALTER TABLE "{table_name}" ALTER COLUMN "{column}" {set_drop} NOT NULL'
+    _MODIFY_COLUMN_TEMPLATE = 'ALTER TABLE "{table_name}" ALTER COLUMN "{column}" TYPE {datatype}'
+    _SET_COMMENT_TEMPLATE = 'COMMENT ON COLUMN "{table_name}"."{column}" IS {comment}'
+
+    def alter_column_default(self, model: "Type[Model]", field_object: Field):
+        db_table = model._meta.db_table
+        default = self._get_default(model, field_object)
+        return self._ALTER_DEFAULT_TEMPLATE.format(
+            table_name=db_table,
+            column=field_object.model_field_name,
+            default="SET" + default if default else "DROP DEFAULT",
+        )
+
+    def alter_column_null(self, model: "Type[Model]", field_object: Field):
+        db_table = model._meta.db_table
+        return self._ALTER_NULL_TEMPLATE.format(
+            table_name=db_table,
+            column=field_object.model_field_name,
+            set_drop="DROP" if field_object.null else "SET",
+        )
+
+    def modify_column(self, model: "Type[Model]", field_object: Field):
+        db_table = model._meta.db_table
+        return self._MODIFY_COLUMN_TEMPLATE.format(
+            table_name=db_table,
+            column=field_object.model_field_name,
+            datatype=field_object.get_for_dialect(self.DIALECT, "SQL_TYPE"),
+        )
+
+    def set_comment(self, model: "Type[Model]", field_object: Field):
+        db_table = model._meta.db_table
+        return self._SET_COMMENT_TEMPLATE.format(
+            table_name=db_table,
+            column=field_object.model_field_name,
+            comment="'{}'".format(field_object.description) if field_object.description else "NULL",
+        )
--- a/aerich/migrate.py
+++ b/aerich/migrate.py
@@ -3,6 +3,7 @@ import os
 import re
 from copy import deepcopy
 from datetime import datetime
+from importlib import import_module
 from typing import Dict, List, Tuple, Type

 from tortoise import (
@@ -27,6 +28,7 @@ class Migrate:
    _downgrade_fk_m2m_index_operators: List[str] = []
    _upgrade_m2m: List[str] = []
    _downgrade_m2m: List[str] = []
+    _aerich = Aerich.__name__

    ddl: BaseDDL
    migrate_config: dict
@@ -34,6 +36,7 @@ class Migrate:
    diff_app = "diff_models"
    app: str
    migrate_location: str
+    dialect: str

    @classmethod
    def get_old_model_file(cls):
@@ -58,39 +61,44 @@ class Migrate:
        await Tortoise.init(config=migrate_config)

        connection = get_app_connection(config, app)
-        if connection.schema_generator.DIALECT == "mysql":
+        cls.dialect = connection.schema_generator.DIALECT
+        if cls.dialect == "mysql":
            from aerich.ddl.mysql import MysqlDDL

            cls.ddl = MysqlDDL(connection)
-        elif connection.schema_generator.DIALECT == "sqlite":
+        elif cls.dialect == "sqlite":
            from aerich.ddl.sqlite import SqliteDDL

            cls.ddl = SqliteDDL(connection)
-        elif connection.schema_generator.DIALECT == "postgres":
+        elif cls.dialect == "postgres":
            from aerich.ddl.postgres import PostgresDDL

            cls.ddl = PostgresDDL(connection)
-        else:
-            raise NotImplementedError("Current only support MySQL")

    @classmethod
    async def _get_last_version_num(cls):
        last_version = await cls.get_last_version()
        if not last_version:
-            return 0
+            return None
        version = last_version.version
-        return version.split("_")[0]
+        return int(version.split("_", 1)[0])
+
+    @classmethod
+    async def generate_version(cls, name=None):
+        now = datetime.now().strftime("%Y%M%D%H%M%S").replace("/", "")
+        last_version_num = await cls._get_last_version_num()
+        if last_version_num is None:
+            return f"0_{now}_init.json"
+        return f"{last_version_num + 1}_{now}_{name}.json"

    @classmethod
    async def _generate_diff_sql(cls, name):
-        now = datetime.now().strftime("%Y%M%D%H%M%S").replace("/", "")
-        last_version_num = await cls._get_last_version_num()
-        version = f"{last_version_num + 1}_{now}_{name}.json"
+        version = await cls.generate_version(name)
        content = {
            "upgrade": cls.upgrade_operators,
            "downgrade": cls.downgrade_operators,
        }
-        with open(os.path.join(cls.migrate_location, version), "w") as f:
+        with open(os.path.join(cls.migrate_location, version), "w", encoding="utf-8") as f:
            json.dump(content, f, indent=2, ensure_ascii=False)
        return version

@@ -105,8 +113,8 @@ class Migrate:
        diff_models = apps.get(cls.diff_app)
        app_models = apps.get(cls.app)

-        cls._diff_models(diff_models, app_models)
-        cls._diff_models(app_models, diff_models, False)
+        cls.diff_models(diff_models, app_models)
+        cls.diff_models(app_models, diff_models, False)

        cls._merge_operators()

@@ -148,11 +156,11 @@ class Migrate:
        """
        pattern = rf"(\n)?('|\")({app})(.\w+)('|\")"
        for i, model_file in enumerate(model_files):
-            with open(model_file, "r") as f:
+            with open(model_file, "r", encoding="utf-8") as f:
                content = f.read()
            ret = re.sub(pattern, rf"\2{cls.diff_app}\4\5", content)
            mode = "w" if i == 0 else "a"
-            with open(old_model_file, mode) as f:
+            with open(old_model_file, mode, encoding="utf-8") as f:
                f.write(ret)

    @classmethod
@@ -166,8 +174,11 @@ class Migrate:
        """
        temp_config = deepcopy(config)
        path = os.path.join(location, app, cls.old_models)
-        path = path.replace("/", ".").lstrip(".")
-        temp_config["apps"][cls.diff_app] = {"models": [path]}
+        path = path.replace(os.sep, ".").lstrip(".")
+        temp_config["apps"][cls.diff_app] = {
+            "models": [path],
+            "default_connection": config.get("apps").get(app).get("default_connection", "default"),
+        }
        return temp_config

    @classmethod
@@ -179,15 +190,17 @@ class Migrate:
        :param location:
        :return:
        """
+        cls.app = app
+
        old_model_files = []
        models = config.get("apps").get(app).get("models")
        for model in models:
-            old_model_files.append(model.replace(".", "/") + ".py")
+            old_model_files.append(import_module(model).__file__)

        cls.cp_models(app, old_model_files, os.path.join(location, app, cls.get_old_model_file()))

    @classmethod
-    def _diff_models(
+    def diff_models(
        cls, old_models: Dict[str, Type[Model]], new_models: Dict[str, Type[Model]], upgrade=True
    ):
        """
@@ -197,6 +210,9 @@ class Migrate:
        :param upgrade:
        :return:
        """
+        old_models.pop(cls._aerich, None)
+        new_models.pop(cls._aerich, None)
+
        for new_model_str, new_model in new_models.items():
            if new_model_str not in old_models.keys():
                cls._add_operator(cls.add_model(new_model), upgrade)
@@ -207,6 +223,10 @@ class Migrate:
            if old_model not in new_models.keys():
                cls._add_operator(cls.remove_model(old_models.get(old_model)), upgrade)

+    @classmethod
+    def _is_fk_m2m(cls, field: Field):
+        return isinstance(field, (ForeignKeyFieldInstance, ManyToManyFieldInstance))
+
    @classmethod
    def add_model(cls, model: Type[Model]):
        return cls.ddl.create_table(model)
@@ -247,6 +267,27 @@ class Migrate:
                )
            else:
                old_field = old_fields_map.get(new_key)
+                new_field_dict = new_field.describe(serializable=True)
+                new_field_dict.pop("unique")
+                new_field_dict.pop("indexed")
+                old_field_dict = old_field.describe(serializable=True)
+                old_field_dict.pop("unique")
+                old_field_dict.pop("indexed")
+                if not cls._is_fk_m2m(new_field) and new_field_dict != old_field_dict:
+                    if cls.dialect == "postgres":
+                        if new_field.null != old_field.null:
+                            cls._add_operator(
+                                cls._alter_null(new_model, new_field), upgrade=upgrade
+                            )
+                        if new_field.default != old_field.default:
+                            cls._add_operator(
+                                cls._alter_default(new_model, new_field), upgrade=upgrade
+                            )
+                        if new_field.description != old_field.description:
+                            cls._add_operator(
+                                cls._set_comment(new_model, new_field), upgrade=upgrade
+                            )
+                    cls._add_operator(cls._modify_field(new_model, new_field), upgrade=upgrade)
                if (old_field.index and not new_field.index) or (
                    old_field.unique and not new_field.unique
                ):
@@ -255,7 +296,7 @@ class Migrate:
                            old_model, (old_field.model_field_name,), old_field.unique
                        ),
                        upgrade,
-                        isinstance(old_field, (ForeignKeyFieldInstance, ManyToManyFieldInstance)),
+                        cls._is_fk_m2m(old_field),
                    )
                elif (new_field.index and not old_field.index) or (
                    new_field.unique and not old_field.unique
@@ -263,16 +304,14 @@ class Migrate:
                    cls._add_operator(
                        cls._add_index(new_model, (new_field.model_field_name,), new_field.unique),
                        upgrade,
-                        isinstance(new_field, (ForeignKeyFieldInstance, ManyToManyFieldInstance)),
+                        cls._is_fk_m2m(new_field),
                    )

        for old_key in old_keys:
            field = old_fields_map.get(old_key)
            if old_key not in new_keys and not cls._exclude_field(field, upgrade):
                cls._add_operator(
-                    cls._remove_field(old_model, field),
-                    upgrade,
-                    isinstance(field, (ForeignKeyFieldInstance, ManyToManyFieldInstance)),
+                    cls._remove_field(old_model, field), upgrade, cls._is_fk_m2m(field),
                )

        for new_index in new_indexes:
@@ -341,6 +380,22 @@ class Migrate:
            return cls.ddl.create_m2m_table(model, field)
        return cls.ddl.add_column(model, field)

+    @classmethod
+    def _alter_default(cls, model: Type[Model], field: Field):
+        return cls.ddl.alter_column_default(model, field)
+
+    @classmethod
+    def _alter_null(cls, model: Type[Model], field: Field):
+        return cls.ddl.alter_column_null(model, field)
+
+    @classmethod
+    def _set_comment(cls, model: Type[Model], field: Field):
+        return cls.ddl.set_comment(model, field)
+
+    @classmethod
+    def _modify_field(cls, model: Type[Model], field: Field):
+        return cls.ddl.modify_column(model, field)
+
    @classmethod
    def _remove_field(cls, model: Type[Model], field: Field):
        if isinstance(field, ForeignKeyFieldInstance):
--- a/aerich/utils.py
+++ b/aerich/utils.py
@@ -11,7 +11,7 @@ def get_app_connection_name(config, app) -> str:
    :param app:
    :return:
    """
-    return config.get("apps").get(app).get("default_connection")
+    return config.get("apps").get(app).get("default_connection", "default")


 def get_app_connection(config, app) -> BaseDBAsyncClient:
--- a/conftest.py
+++ b/conftest.py
@@ -1,11 +1,61 @@
+import asyncio
 import os

 import pytest
-from tortoise.contrib.test import finalizer, initializer
+from tortoise import Tortoise, expand_db_url, generate_schema_for_client
+from tortoise.backends.asyncpg.schema_generator import AsyncpgSchemaGenerator
+from tortoise.backends.mysql.schema_generator import MySQLSchemaGenerator
+from tortoise.backends.sqlite.schema_generator import SqliteSchemaGenerator
+
+from aerich.ddl.mysql import MysqlDDL
+from aerich.ddl.postgres import PostgresDDL
+from aerich.ddl.sqlite import SqliteDDL
+from aerich.migrate import Migrate
+
+db_url = os.getenv("TEST_DB", "sqlite://:memory:")
+tortoise_orm = {
+    "connections": {"default": expand_db_url(db_url, True)},
+    "apps": {
+        "models": {"models": ["tests.models", "aerich.models"], "default_connection": "default"},
+    },
+}


-@pytest.fixture(scope="module", autouse=True)
-def initialize_tests(request):
-    db_url = os.getenv("TEST_DB", "sqlite://:memory:")
-    initializer(["tests.models"], db_url=db_url)
-    request.addfinalizer(finalizer)
+@pytest.fixture(scope="function", autouse=True)
+def reset_migrate():
+    Migrate.upgrade_operators = []
+    Migrate.downgrade_operators = []
+    Migrate._upgrade_fk_m2m_index_operators = []
+    Migrate._downgrade_fk_m2m_index_operators = []
+    Migrate._upgrade_m2m = []
+    Migrate._downgrade_m2m = []
+
+
+@pytest.fixture(scope="session")
+def loop():
+    loop = asyncio.get_event_loop()
+    return loop
+
+
+@pytest.fixture(scope="session", autouse=True)
+def initialize_tests(loop, request):
+    tortoise_orm["connections"]["diff_models"] = "sqlite://:memory:"
+    tortoise_orm["apps"]["diff_models"] = {
+        "models": ["tests.diff_models"],
+        "default_connection": "diff_models",
+    }
+
+    loop.run_until_complete(Tortoise.init(config=tortoise_orm, _create_db=True))
+    loop.run_until_complete(
+        generate_schema_for_client(Tortoise.get_connection("default"), safe=True)
+    )
+
+    client = Tortoise.get_connection("default")
+    if client.schema_generator is MySQLSchemaGenerator:
+        Migrate.ddl = MysqlDDL(client)
+    elif client.schema_generator is SqliteSchemaGenerator:
+        Migrate.ddl = SqliteDDL(client)
+    elif client.schema_generator is AsyncpgSchemaGenerator:
+        Migrate.ddl = PostgresDDL(client)
+
+    request.addfinalizer(lambda: loop.run_until_complete(Tortoise._drop_databases()))
--- a/images/alipay.jpeg
+++ b/images/alipay.jpeg
--- a/images/wechatpay.jpeg
+++ b/images/wechatpay.jpeg
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,8 +1,8 @@
 [[package]]
-category = "dev"
+category = "main"
 description = "MySQL driver for asyncio."
 name = "aiomysql"
-optional = false
+optional = true
 python-versions = "*"
 version = "0.0.20"

@@ -26,7 +26,7 @@ description = "High level compatibility layer for multiple asynchronous event lo
 name = "anyio"
 optional = false
 python-versions = ">=3.5.3"
-version = "1.3.0"
+version = "1.3.1"

 [package.dependencies]
 async-generator = "*"
@@ -78,10 +78,10 @@ dev = ["coverage", "pytest-runner", "pytest-trio", "pytest (>=3)", "sphinx", "to
 docs = ["sphinx"]

 [[package]]
-category = "dev"
+category = "main"
 description = "An asyncio PostgreSQL driver"
 name = "asyncpg"
-optional = false
+optional = true
 python-versions = ">=3.5.0"
 version = "0.20.1"

@@ -90,14 +90,6 @@ dev = ["Cython (0.29.14)", "pytest (>=3.6.0)", "Sphinx (>=1.7.3,<1.8.0)", "sphin
 docs = ["Sphinx (>=1.7.3,<1.8.0)", "sphinxcontrib-asyncio (>=0.2.0,<0.3.0)", "sphinx-rtd-theme (>=0.2.4,<0.3.0)"]
 test = ["pycodestyle (>=2.5.0,<2.6.0)", "flake8 (>=3.7.9,<3.8.0)", "uvloop (>=0.14.0,<0.15.0)"]

-[[package]]
-category = "dev"
-description = "Enhance the standard unittest package with features for testing asyncio libraries"
-name = "asynctest"
-optional = false
-python-versions = ">=3.5"
-version = "0.13.0"
-
 [[package]]
 category = "dev"
 description = "Atomic file writes."
@@ -121,6 +113,21 @@ dev = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.int
 docs = ["sphinx", "zope.interface"]
 tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]

+[[package]]
+category = "dev"
+description = "Security oriented static analyser for python code."
+name = "bandit"
+optional = false
+python-versions = "*"
+version = "1.6.2"
+
+[package.dependencies]
+GitPython = ">=1.0.1"
+PyYAML = ">=3.13"
+colorama = ">=0.3.9"
+six = ">=1.10.0"
+stevedore = ">=1.20.0"
+
 [[package]]
 category = "dev"
 description = "The uncompromising code formatter."
@@ -142,25 +149,16 @@ typed-ast = ">=1.4.0"
 d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]

 [[package]]
-category = "dev"
+category = "main"
 description = "Foreign Function Interface for Python calling C code."
 name = "cffi"
-optional = false
+optional = true
 python-versions = "*"
 version = "1.14.0"

 [package.dependencies]
 pycparser = "*"

-[[package]]
-category = "main"
-description = "Fast ISO8601 date time parser for Python written in C"
-marker = "sys_platform != \"win32\" and implementation_name == \"cpython\""
-name = "ciso8601"
-optional = false
-python-versions = "*"
-version = "2.1.3"
-
 [[package]]
 category = "dev"
 description = "Composable command line interface toolkit"
@@ -172,17 +170,17 @@ version = "7.1.2"
 [[package]]
 category = "dev"
 description = "Cross-platform colored terminal text."
-marker = "sys_platform == \"win32\""
+marker = "sys_platform == \"win32\" or platform_system == \"Windows\""
 name = "colorama"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 version = "0.4.3"

 [[package]]
-category = "dev"
+category = "main"
 description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
 name = "cryptography"
-optional = false
+optional = true
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
 version = "2.9.2"

@@ -217,17 +215,38 @@ description = "the modular source code checker: pep8 pyflakes and co"
 name = "flake8"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,>=2.7"
-version = "3.8.1"
+version = "3.8.3"

 [package.dependencies]
 mccabe = ">=0.6.0,<0.7.0"
 pycodestyle = ">=2.6.0a1,<2.7.0"
 pyflakes = ">=2.2.0,<2.3.0"

+[[package]]
+category = "dev"
+description = "Git Object Database"
+name = "gitdb"
+optional = false
+python-versions = ">=3.4"
+version = "4.0.5"
+
+[package.dependencies]
+smmap = ">=3.0.1,<4"
+
+[[package]]
+category = "dev"
+description = "Python Git Library"
+name = "gitpython"
+optional = false
+python-versions = ">=3.4"
+version = "3.1.3"
+
+[package.dependencies]
+gitdb = ">=4.0.1,<5"
+
 [[package]]
 category = "main"
 description = "Simple module to parse ISO 8601 dates"
-marker = "sys_platform == \"win32\" or implementation_name != \"cpython\""
 name = "iso8601"
 optional = false
 python-versions = "*"
@@ -238,14 +257,12 @@ category = "dev"
 description = "A Python utility / library to sort Python imports."
 name = "isort"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "4.3.21"
+python-versions = ">=3.6,<4.0"
+version = "5.0.3"

 [package.extras]
-pipfile = ["pipreqs", "requirementslib"]
-pyproject = ["toml"]
-requirements = ["pipreqs", "pip-api"]
-xdg_home = ["appdirs (>=1.4.0)"]
+pipfile_deprecated_finder = ["pipreqs", "requirementslib", "tomlkit (>=0.5.3)"]
+requirements_deprecated_finder = ["pipreqs", "pip-api"]

 [[package]]
 category = "dev"
@@ -261,31 +278,7 @@ description = "More routines for operating on iterables, beyond itertools"
 name = "more-itertools"
 optional = false
 python-versions = ">=3.5"
-version = "8.3.0"
-
-[[package]]
-category = "dev"
-description = "Optional static typing for Python"
-name = "mypy"
-optional = false
-python-versions = ">=3.5"
-version = "0.770"
-
-[package.dependencies]
-mypy-extensions = ">=0.4.3,<0.5.0"
-typed-ast = ">=1.4.0,<1.5.0"
-typing-extensions = ">=3.7.4"
-
-[package.extras]
-dmypy = ["psutil (>=4.0)"]
-
-[[package]]
-category = "dev"
-description = "Experimental type system extensions for programs checked with the mypy typechecker."
-name = "mypy-extensions"
-optional = false
-python-versions = "*"
-version = "0.4.3"
+version = "8.4.0"

 [[package]]
 category = "dev"
@@ -307,6 +300,14 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 version = "0.8.0"

+[[package]]
+category = "dev"
+description = "Python Build Reasonableness"
+name = "pbr"
+optional = false
+python-versions = "*"
+version = "5.4.5"
+
 [[package]]
 category = "dev"
 description = "plugin and hook calling mechanisms for python"
@@ -324,7 +325,7 @@ description = "library with cross-python path, ini-parsing, io, code, log facili
 name = "py"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.8.1"
+version = "1.9.0"

 [[package]]
 category = "dev"
@@ -335,10 +336,10 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 version = "2.6.0"

 [[package]]
-category = "dev"
+category = "main"
 description = "C parser in Python"
 name = "pycparser"
-optional = false
+optional = true
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 version = "2.20"

@@ -364,10 +365,10 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 version = "2.2.0"

 [[package]]
-category = "dev"
+category = "main"
 description = "Pure Python MySQL Driver"
 name = "pymysql"
-optional = false
+optional = true
 python-versions = "*"
 version = "0.9.2"

@@ -388,7 +389,7 @@ description = "A SQL query builder API for Python"
 name = "pypika"
 optional = false
 python-versions = "*"
-version = "0.37.6"
+version = "0.37.15"

 [[package]]
 category = "dev"
@@ -396,7 +397,7 @@ description = "pytest: simple powerful testing with Python"
 name = "pytest"
 optional = false
 python-versions = ">=3.5"
-version = "5.4.2"
+version = "5.4.3"

 [package.dependencies]
 atomicwrites = ">=1.0"
@@ -412,13 +413,27 @@ wcwidth = "*"
 checkqa-mypy = ["mypy (v0.761)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]

+[[package]]
+category = "dev"
+description = "Pytest support for asyncio."
+name = "pytest-asyncio"
+optional = false
+python-versions = ">= 3.5"
+version = "0.14.0"
+
+[package.dependencies]
+pytest = ">=5.4.0"
+
+[package.extras]
+testing = ["async-generator (>=1.3)", "coverage", "hypothesis (>=5.7.1)"]
+
 [[package]]
 category = "dev"
 description = "run tests in isolated forked subprocesses"
 name = "pytest-forked"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "1.1.3"
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "1.2.0"

 [package.dependencies]
 pytest = ">=3.1.0"
@@ -440,21 +455,37 @@ six = "*"
 [package.extras]
 testing = ["filelock"]

+[[package]]
+category = "dev"
+description = "YAML parser and emitter for Python"
+name = "pyyaml"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
+version = "5.3.1"
+
 [[package]]
 category = "dev"
 description = "Alternative regular expression module, to replace re."
 name = "regex"
 optional = false
 python-versions = "*"
-version = "2020.5.14"
+version = "2020.6.8"

 [[package]]
-category = "dev"
+category = "main"
 description = "Python 2 and 3 compatibility utilities"
 name = "six"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
-version = "1.14.0"
+version = "1.15.0"
+
+[[package]]
+category = "dev"
+description = "A pure Python implementation of a sliding window memory map manager"
+name = "smmap"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "3.0.4"

 [[package]]
 category = "main"
@@ -466,14 +497,14 @@ version = "1.1.0"

 [[package]]
 category = "dev"
-description = "tasks runner for python projects"
-name = "taskipy"
+description = "Manage dynamic plugins for Python applications"
+name = "stevedore"
 optional = false
-python-versions = ">=3.6,<4.0"
-version = "1.2.1"
+python-versions = ">=3.6"
+version = "2.0.1"

 [package.dependencies]
-toml = ">=0.10.0,<0.11.0"
+pbr = ">=2.0.0,<2.1.0 || >2.1.0"

 [[package]]
 category = "dev"
@@ -489,19 +520,17 @@ description = "Easy async ORM for python, built with relations in mind"
 name = "tortoise-orm"
 optional = false
 python-versions = "*"
-version = "0.16.11"
+version = "0.16.13"

 [package.dependencies]
 aiosqlite = ">=0.11.0"
-ciso8601 = ">=2.1.2"
 iso8601 = ">=0.1.12"
 pypika = ">=0.36.5"
 typing-extensions = ">=3.7"

-[package.source]
-reference = "1f67b7a0ca1384365d6ff89d9e245e733166d1a6"
-type = "git"
-url = "https://github.com/long2ice/tortoise-orm.git"
+[package.extras]
+accel = ["python-rapidjson", "ciso8601 (>=2.1.2)", "uvloop (>=0.12.0)"]
+
 [[package]]
 category = "dev"
 description = "a fork of Python 2 and 3 ast modules with type comment support"
@@ -520,14 +549,17 @@ version = "3.7.4.2"

 [[package]]
 category = "dev"
-description = "Measures number of Terminal column cells of wide-character codes"
+description = "Measures the displayed width of unicode strings in a terminal"
 name = "wcwidth"
 optional = false
 python-versions = "*"
-version = "0.1.9"
+version = "0.2.5"
+
+[extras]
+dbdrivers = ["aiomysql", "asyncpg"]

 [metadata]
-content-hash = "58a032bbb47859e87d2bce036af24149060cc531ff9220a14f6cd48db6252f39"
+content-hash = "485702557f7b65db14e44d459fb1c985f56caf4b14857006ef96304d6516d976"
 python-versions = "^3.8"

 [metadata.files]
@@ -540,8 +572,8 @@ aiosqlite = [
    {file = "aiosqlite-0.13.0.tar.gz", hash = "sha256:6e92961ae9e606b43b05e29b129e346b29e400fcbd63e3c0c564d89230257645"},
 ]
 anyio = [
-    {file = "anyio-1.3.0-py3-none-any.whl", hash = "sha256:db2c3d21576870b95d4fd0b8f4a0f9c64057f777c578f3a8127179a17c8c067e"},
-    {file = "anyio-1.3.0.tar.gz", hash = "sha256:7deae0315dd10aa41c21528b83352e4b52f44e6153a21081a3d1cd8c03728e46"},
+    {file = "anyio-1.3.1-py3-none-any.whl", hash = "sha256:f21b4fafeec1b7db81e09a907e44e374a1e39718d782a488fdfcdcf949c8950c"},
+    {file = "anyio-1.3.1.tar.gz", hash = "sha256:a46bb2b7743455434afd9adea848a3c4e0b7321aee3e9d08844b11d348d3b5a0"},
 ]
 apipkg = [
    {file = "apipkg-1.5-py2.py3-none-any.whl", hash = "sha256:58587dd4dc3daefad0487f6d9ae32b4542b185e1c36db6993290e7c41ca2b47c"},
@@ -581,10 +613,6 @@ asyncpg = [
    {file = "asyncpg-0.20.1-cp38-cp38-win_amd64.whl", hash = "sha256:2af6a5a705accd36e13292ea43d08c20b15e52d684beb522cb3a7d3c9c8f3f48"},
    {file = "asyncpg-0.20.1.tar.gz", hash = "sha256:394bf19bdddbba07a38cd6fb526ebf66e120444d6b3097332b78efd5b26495b0"},
 ]
-asynctest = [
-    {file = "asynctest-0.13.0-py3-none-any.whl", hash = "sha256:5da6118a7e6d6b54d83a8f7197769d046922a44d2a99c21382f0a6e4fadae676"},
-    {file = "asynctest-0.13.0.tar.gz", hash = "sha256:c27862842d15d83e6a34eb0b2866c323880eb3a75e4485b079ea11748fd77fac"},
-]
 atomicwrites = [
    {file = "atomicwrites-1.4.0-py2.py3-none-any.whl", hash = "sha256:6d1784dea7c0c8d4a5172b6c620f40b6e4cbfdf96d783691f2e1302a7b88e197"},
    {file = "atomicwrites-1.4.0.tar.gz", hash = "sha256:ae70396ad1a434f9c7046fd2dd196fc04b12f9e91ffb859164193be8b6168a7a"},
@@ -593,6 +621,10 @@ attrs = [
    {file = "attrs-19.3.0-py2.py3-none-any.whl", hash = "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c"},
    {file = "attrs-19.3.0.tar.gz", hash = "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"},
 ]
+bandit = [
+    {file = "bandit-1.6.2-py2.py3-none-any.whl", hash = "sha256:336620e220cf2d3115877685e264477ff9d9abaeb0afe3dc7264f55fa17a3952"},
+    {file = "bandit-1.6.2.tar.gz", hash = "sha256:41e75315853507aa145d62a78a2a6c5e3240fe14ee7c601459d0df9418196065"},
+]
 black = [
    {file = "black-19.10b0-py36-none-any.whl", hash = "sha256:1b30e59be925fafc1ee4565e5e08abef6b03fe455102883820fe5ee2e4734e0b"},
    {file = "black-19.10b0.tar.gz", hash = "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"},
@@ -627,9 +659,6 @@ cffi = [
    {file = "cffi-1.14.0-cp38-cp38-win_amd64.whl", hash = "sha256:00789914be39dffba161cfc5be31b55775de5ba2235fe49aa28c148236c4e06b"},
    {file = "cffi-1.14.0.tar.gz", hash = "sha256:2d384f4a127a15ba701207f7639d94106693b6cd64173d6c8988e2c25f3ac2b6"},
 ]
-ciso8601 = [
-    {file = "ciso8601-2.1.3.tar.gz", hash = "sha256:bdbb5b366058b1c87735603b23060962c439ac9be66f1ae91e8c7dbd7d59e262"},
-]
 click = [
    {file = "click-7.1.2-py2.py3-none-any.whl", hash = "sha256:dacca89f4bfadd5de3d7489b7c8a566eee0d3676333fbb50030263894c38c0dc"},
    {file = "click-7.1.2.tar.gz", hash = "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a"},
@@ -664,8 +693,16 @@ execnet = [
    {file = "execnet-1.7.1.tar.gz", hash = "sha256:cacb9df31c9680ec5f95553976c4da484d407e85e41c83cb812aa014f0eddc50"},
 ]
 flake8 = [
-    {file = "flake8-3.8.1-py2.py3-none-any.whl", hash = "sha256:6c1193b0c3f853ef763969238f6c81e9e63ace9d024518edc020d5f1d6d93195"},
-    {file = "flake8-3.8.1.tar.gz", hash = "sha256:ea6623797bf9a52f4c9577d780da0bb17d65f870213f7b5bcc9fca82540c31d5"},
+    {file = "flake8-3.8.3-py2.py3-none-any.whl", hash = "sha256:15e351d19611c887e482fb960eae4d44845013cc142d42896e9862f775d8cf5c"},
+    {file = "flake8-3.8.3.tar.gz", hash = "sha256:f04b9fcbac03b0a3e58c0ab3a0ecc462e023a9faf046d57794184028123aa208"},
+]
+gitdb = [
+    {file = "gitdb-4.0.5-py3-none-any.whl", hash = "sha256:91f36bfb1ab7949b3b40e23736db18231bf7593edada2ba5c3a174a7b23657ac"},
+    {file = "gitdb-4.0.5.tar.gz", hash = "sha256:c9e1f2d0db7ddb9a704c2a0217be31214e91a4fe1dea1efad19ae42ba0c285c9"},
+]
+gitpython = [
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+    {file = "regex-2020.6.8-cp38-cp38-manylinux2010_i686.whl", hash = "sha256:cf59bbf282b627130f5ba68b7fa3abdb96372b24b66bdf72a4920e8153fc7910"},
+    {file = "regex-2020.6.8-cp38-cp38-manylinux2010_x86_64.whl", hash = "sha256:5aaa5928b039ae440d775acea11d01e42ff26e1561c0ffcd3d805750973c6baf"},
+    {file = "regex-2020.6.8-cp38-cp38-win32.whl", hash = "sha256:97712e0d0af05febd8ab63d2ef0ab2d0cd9deddf4476f7aa153f76feef4b2754"},
+    {file = "regex-2020.6.8-cp38-cp38-win_amd64.whl", hash = "sha256:6ad8663c17db4c5ef438141f99e291c4d4edfeaacc0ce28b5bba2b0bf273d9b5"},
+    {file = "regex-2020.6.8.tar.gz", hash = "sha256:e9b64e609d37438f7d6e68c2546d2cb8062f3adb27e6336bc129b51be20773ac"},
 ]
 six = [
-    {file = "six-1.14.0-py2.py3-none-any.whl", hash = "sha256:8f3cd2e254d8f793e7f3d6d9df77b92252b52637291d0f0da013c76ea2724b6c"},
-    {file = "six-1.14.0.tar.gz", hash = "sha256:236bdbdce46e6e6a3d61a337c0f8b763ca1e8717c03b369e87a7ec7ce1319c0a"},
+    {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},
+    {file = "six-1.15.0.tar.gz", hash = "sha256:30639c035cdb23534cd4aa2dd52c3bf48f06e5f4a941509c8bafd8ce11080259"},
+]
+smmap = [
+    {file = "smmap-3.0.4-py2.py3-none-any.whl", hash = "sha256:54c44c197c819d5ef1991799a7e30b662d1e520f2ac75c9efbeb54a742214cf4"},
+    {file = "smmap-3.0.4.tar.gz", hash = "sha256:9c98bbd1f9786d22f14b3d4126894d56befb835ec90cef151af566c7e19b5d24"},
 ]
 sniffio = [
    {file = "sniffio-1.1.0-py3-none-any.whl", hash = "sha256:20ed6d5b46f8ae136d00b9dcb807615d83ed82ceea6b2058cecb696765246da5"},
    {file = "sniffio-1.1.0.tar.gz", hash = "sha256:8e3810100f69fe0edd463d02ad407112542a11ffdc29f67db2bf3771afb87a21"},
 ]
-taskipy = [
-    {file = "taskipy-1.2.1-py3-none-any.whl", hash = "sha256:99bdaf5b19791c2345806847147e0fc2d28e1ac9446058def5a8b6b3fc9f23e2"},
-    {file = "taskipy-1.2.1.tar.gz", hash = "sha256:5eb2c3b1606c896c7fa799848e71e8883b880759224958d07ba760e5db263175"},
+stevedore = [
+    {file = "stevedore-2.0.1-py3-none-any.whl", hash = "sha256:c4724f8d7b8f6be42130663855d01a9c2414d6046055b5a65ab58a0e38637688"},
+    {file = "stevedore-2.0.1.tar.gz", hash = "sha256:609912b87df5ad338ff8e44d13eaad4f4170a65b79ae9cb0aa5632598994a1b7"},
 ]
 toml = [
    {file = "toml-0.10.1-py2.py3-none-any.whl", hash = "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"},
    {file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
 ]
-tortoise-orm = []
+tortoise-orm = [
+    {file = "tortoise-orm-0.16.13.tar.gz", hash = "sha256:5f6fa4430a570172cb49517a97d45338dbfb1a690ed707030467efd154e67855"},
+]
 typed-ast = [
    {file = "typed_ast-1.4.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3"},
    {file = "typed_ast-1.4.1-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:aaee9905aee35ba5905cfb3c62f3e83b3bec7b39413f0a7f19be4e547ea01ebb"},
@@ -843,6 +887,6 @@ typing-extensions = [
    {file = "typing_extensions-3.7.4.2.tar.gz", hash = "sha256:79ee589a3caca649a9bfd2a8de4709837400dfa00b6cc81962a1e6a1815969ae"},
 ]
 wcwidth = [
-    {file = "wcwidth-0.1.9-py2.py3-none-any.whl", hash = "sha256:cafe2186b3c009a04067022ce1dcd79cb38d8d65ee4f4791b8888d6599d1bbe1"},
-    {file = "wcwidth-0.1.9.tar.gz", hash = "sha256:ee73862862a156bf77ff92b09034fc4825dd3af9cf81bc5b360668d425f3c5f1"},
+    {file = "wcwidth-0.2.5-py2.py3-none-any.whl", hash = "sha256:beb4802a9cebb9144e99086eff703a642a13d6a0052920003a230f3294bbe784"},
+    {file = "wcwidth-0.2.5.tar.gz", hash = "sha256:c4d647b99872929fdb7bdcaa4fbe7f01413ed3d98077df798530e5b04f116c83"},
 ]
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,32 +1,42 @@
 [tool.poetry]
 name = "aerich"
-version = "0.1.1"
+version = "0.2.1"
 description = "A database migrations tool for Tortoise ORM."
 authors = ["long2ice <long2ice@gmail.com>"]
+license = "Apache-2.0"
+readme = "README.md"
+homepage = "https://github.com/long2ice/aerich"
+repository = "https://github.com/long2ice/aerich.git"
+documentation = "https://github.com/long2ice/aerich"
+keywords = ["migrate", "Tortoise-ORM", "mysql"]
+packages = [
+    { include = "aerich" }
+]
+include = ["CHANGELOG.rst", "LICENSE", "README.md"]

 [tool.poetry.dependencies]
 python = "^3.8"
-tortoise-orm = {git = "https://github.com/long2ice/tortoise-orm.git", branch = "develop"}
+tortoise-orm = "*"
 asyncclick = "*"
 pydantic = "*"
+aiomysql = {version = "*", optional = true}
+asyncpg = {version = "*", optional = true}

 [tool.poetry.dev-dependencies]
-taskipy = "*"
-asynctest = "*"
 flake8 = "*"
 isort = "*"
 black = "^19.10b0"
 pytest = "*"
-aiomysql = "*"
-asyncpg = "*"
 pytest-xdist = "*"
-mypy = "*"
+pytest-asyncio = "*"
+bandit = "*"

-[tool.taskipy.tasks]
-export = "poetry export -f requirements.txt --without-hashes > requirements.txt"
-export-dev = "poetry export -f requirements.txt --dev --without-hashes > requirements-dev.txt"
+[tool.poetry.extras]
+dbdrivers = ["aiomysql", "asyncpg"]

 [build-system]
 requires = ["poetry>=0.12"]
 build-backend = "poetry.masonry.api"

+[tool.poetry.scripts]
+aerich = "aerich.cli:main"
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,2 +0,0 @@
-[pytest]
-addopts = -p no:warnings --ignore=src
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,48 +0,0 @@
-aiomysql==0.0.20
-aiosqlite==0.13.0
-anyio==1.3.0
-apipkg==1.5
-appdirs==1.4.4
-async-generator==1.10
-asyncclick==7.0.9
-asyncpg==0.20.1
-asynctest==0.13.0
-atomicwrites==1.4.0; sys_platform == "win32"
-attrs==19.3.0
-black==19.10b0
-cffi==1.14.0
-ciso8601==2.1.3; sys_platform != "win32" and implementation_name == "cpython"
-click==7.1.2
-colorama==0.4.3; sys_platform == "win32"
-cryptography==2.9.2
-execnet==1.7.1
-flake8==3.8.1
-iso8601==0.1.12; sys_platform == "win32" or implementation_name != "cpython"
-isort==4.3.21
-mccabe==0.6.1
-more-itertools==8.3.0
-mypy==0.770
-mypy-extensions==0.4.3
-packaging==20.4
-pathspec==0.8.0
-pluggy==0.13.1
-py==1.8.1
-pycodestyle==2.6.0
-pycparser==2.20
-pydantic==1.5.1
-pyflakes==2.2.0
-pymysql==0.9.2
-pyparsing==2.4.7
-pypika==0.37.6
-pytest==5.4.2
-pytest-forked==1.1.3
-pytest-xdist==1.32.0
-regex==2020.5.14
-six==1.14.0
-sniffio==1.1.0
-taskipy==1.2.1
-toml==0.10.1
-e git+https://github.com/long2ice/tortoise-orm.git@1f67b7a0ca1384365d6ff89d9e245e733166d1a6#egg=tortoise-orm
-typed-ast==1.4.1
-typing-extensions==3.7.4.2
-wcwidth==0.1.9
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,10 +0,0 @@
-aiosqlite==0.13.0
-anyio==1.3.0
-async-generator==1.10
-asyncclick==7.0.9
-ciso8601==2.1.3; sys_platform != "win32" and implementation_name == "cpython"
-iso8601==0.1.12; sys_platform == "win32" or implementation_name != "cpython"
-pydantic==1.5.1
-pypika==0.37.6
-sniffio==1.1.0
-typing-extensions==3.7.4.2
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,47 +1,2 @@
 [flake8]
-max-line-length = 100
-exclude =
-ignore = E501,W503,DAR101,DAR201,DAR402
-
-[darglint]
-docstring_style=sphinx
-
-[isort]
-not_skip=__init__.py
-multi_line_output=3
-include_trailing_comma=True
-force_grid_wrap=0
-use_parentheses=True
-line_length=100
-
-[tool:pytest]
-addopts = -n auto --tb=native -q
-
-[mypy]
-pretty = True
-ignore_missing_imports = True
-check_untyped_defs = True
-disallow_subclassing_any = True
-disallow_untyped_calls = True
-disallow_untyped_defs = False
-disallow_incomplete_defs = False
-disallow_untyped_decorators = True
-no_implicit_optional = True
-warn_redundant_casts = True
-warn_unused_ignores = True
-warn_no_return = True
-warn_return_any = False
-warn_unused_configs = True
-warn_unreachable = True
-allow_redefinition = True
-strict_equality = True
-show_error_context = True
-
-[mypy-tests.*]
-check_untyped_defs = False
-disallow_untyped_defs = False
-disallow_incomplete_defs = False
-warn_unreachable = False
-
-[mypy-conftest]
-disallow_untyped_defs = False
+ignore = E501,W503
--- a/setup.py
+++ b/setup.py
@@ -1,44 +0,0 @@
-import os
-import re
-from setuptools import find_packages, setup
-
-
-def version():
-    ver_str_line = open('aerich/__init__.py', 'rt').read()
-    mob = re.search(r"^__version__ = ['\"]([^'\"]*)['\"]", ver_str_line, re.M)
-    if not mob:
-        raise RuntimeError("Unable to find version string")
-    return mob.group(1)
-
-
-with open(os.path.join(os.path.dirname(__file__), 'README.rst')) as f:
-    long_description = f.read()
-
-
-def requirements():
-    return open('requirements.txt', 'rt').read().splitlines()
-
-
-setup(
-    name='aerich',
-    version=version(),
-    description='A database migrations tool for Tortoise-ORM.',
-    author='long2ice',
-    long_description_content_type='text/x-rst',
-    long_description=long_description,
-    author_email='long2ice@gmail.com',
-    url='https://github.com/long2ice/aerich',
-    license='MIT License',
-    packages=find_packages(include=['aerich*']),
-    include_package_data=True,
-    zip_safe=True,
-    entry_points={
-        'console_scripts': ['aerich = aerich.cli:main'],
-    },
-    platforms='any',
-    keywords=(
-        'migrate Tortoise-ORM mysql'
-    ),
-    dependency_links=['https://github.com/long2ice/tortoise-orm.git@develop#egg=tortoise-orm'],
-    install_requires=requirements(),
-)
--- a/tests/init.py
+++ b/tests/init.py
@@ -1,6 +0,0 @@
-TORTOISE_ORM = {
-    "connections": {"default": "mysql://root:123456@127.0.0.1:3306/test"},
-    "apps": {
-        "models": {"models": ["tests.models", "aerich.models"], "default_connection": "default"}
-    },
-}
--- a/tests/diff_models.py
+++ b/tests/diff_models.py
@@ -0,0 +1,56 @@
+import datetime
+from enum import IntEnum
+
+from tortoise import Model, fields
+
+
+class ProductType(IntEnum):
+    article = 1
+    page = 2
+
+
+class PermissionAction(IntEnum):
+    create = 1
+    delete = 2
+    update = 3
+    read = 4
+
+
+class Status(IntEnum):
+    on = 1
+    off = 0
+
+
+class User(Model):
+    username = fields.CharField(max_length=20,)
+    password = fields.CharField(max_length=200)
+    last_login = fields.DatetimeField(description="Last Login", default=datetime.datetime.now)
+    is_active = fields.BooleanField(default=True, description="Is Active")
+    is_superuser = fields.BooleanField(default=False, description="Is SuperUser")
+    avatar = fields.CharField(max_length=200, default="")
+    intro = fields.TextField(default="")
+
+
+class Category(Model):
+    slug = fields.CharField(max_length=200)
+    user = fields.ForeignKeyField("diff_models.User", description="User")
+    created_at = fields.DatetimeField(auto_now_add=True)
+
+
+class Product(Model):
+    categories = fields.ManyToManyField("diff_models.Category")
+    name = fields.CharField(max_length=50)
+    view_num = fields.IntField(description="View Num")
+    sort = fields.IntField()
+    is_reviewed = fields.BooleanField(description="Is Reviewed")
+    type = fields.IntEnumField(ProductType, description="Product Type")
+    image = fields.CharField(max_length=200)
+    body = fields.TextField()
+    created_at = fields.DatetimeField(auto_now_add=True)
+
+
+class Config(Model):
+    label = fields.CharField(max_length=200)
+    key = fields.CharField(max_length=20)
+    value = fields.JSONField()
+    status: Status = fields.IntEnumField(Status, default=Status.on)
--- a/tests/test_ddl.py
+++ b/tests/test_ddl.py
@@ -1,114 +1,183 @@
-from tortoise import Tortoise
-from tortoise.backends.asyncpg.schema_generator import AsyncpgSchemaGenerator
-from tortoise.backends.mysql.schema_generator import MySQLSchemaGenerator
-from tortoise.backends.sqlite.schema_generator import SqliteSchemaGenerator
-from tortoise.contrib import test
-
 from aerich.ddl.mysql import MysqlDDL
 from aerich.ddl.postgres import PostgresDDL
 from aerich.ddl.sqlite import SqliteDDL
-from tests.models import Category
+from aerich.migrate import Migrate
+from tests.models import Category, User


-class TestDDL(test.TruncationTestCase):
-    maxDiff = None
-
-    def setUp(self) -> None:
-        client = Tortoise.get_connection("models")
-        if client.schema_generator is MySQLSchemaGenerator:
-            self.ddl = MysqlDDL(client)
-        elif client.schema_generator is SqliteSchemaGenerator:
-            self.ddl = SqliteDDL(client)
-        elif client.schema_generator is AsyncpgSchemaGenerator:
-            self.ddl = PostgresDDL(client)
-
-    def test_create_table(self):
-        ret = self.ddl.create_table(Category)
-        if isinstance(self.ddl, MysqlDDL):
-            self.assertEqual(
-                ret,
-                """CREATE TABLE IF NOT EXISTS `category` (
+def test_create_table():
+    ret = Migrate.ddl.create_table(Category)
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert (
+            ret
+            == """CREATE TABLE IF NOT EXISTS `category` (
    `id` INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
    `slug` VARCHAR(200) NOT NULL,
    `name` VARCHAR(200) NOT NULL,
    `created_at` DATETIME(6) NOT NULL  DEFAULT CURRENT_TIMESTAMP(6),
    `user_id` INT NOT NULL COMMENT 'User',
    CONSTRAINT `fk_category_user_e2e3874c` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`) ON DELETE CASCADE
-) CHARACTER SET utf8mb4;""",
-            )
-        elif isinstance(self.ddl, SqliteDDL):
-            self.assertEqual(
-                ret,
-                """CREATE TABLE IF NOT EXISTS "category" (
+) CHARACTER SET utf8mb4;"""
+        )
+
+    elif isinstance(Migrate.ddl, SqliteDDL):
+        assert (
+            ret
+            == """CREATE TABLE IF NOT EXISTS "category" (
    "id" INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
    "slug" VARCHAR(200) NOT NULL,
    "name" VARCHAR(200) NOT NULL,
    "created_at" TIMESTAMP NOT NULL  DEFAULT CURRENT_TIMESTAMP,
    "user_id" INT NOT NULL REFERENCES "user" ("id") ON DELETE CASCADE /* User */
-);""",
-            )
-        elif isinstance(self.ddl, PostgresDDL):
-            self.assertEqual(
-                ret,
-                """CREATE TABLE IF NOT EXISTS "category" (
+);"""
+        )
+
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert (
+            ret
+            == """CREATE TABLE IF NOT EXISTS "category" (
    "id" SERIAL NOT NULL PRIMARY KEY,
    "slug" VARCHAR(200) NOT NULL,
    "name" VARCHAR(200) NOT NULL,
    "created_at" TIMESTAMP NOT NULL  DEFAULT CURRENT_TIMESTAMP,
    "user_id" INT NOT NULL REFERENCES "user" ("id") ON DELETE CASCADE
 );
-COMMENT ON COLUMN "category"."user_id" IS 'User';""",
-            )
-
-    def test_drop_table(self):
-        ret = self.ddl.drop_table(Category)
-        self.assertEqual(ret, "DROP TABLE IF EXISTS category")
-
-    def test_add_column(self):
-        ret = self.ddl.add_column(Category, Category._meta.fields_map.get("name"))
-        if isinstance(self.ddl, MysqlDDL):
-            self.assertEqual(ret, "ALTER TABLE category ADD `name` VARCHAR(200) NOT NULL")
-        elif isinstance(self.ddl, PostgresDDL):
-            self.assertEqual(ret, 'ALTER TABLE category ADD "name" VARCHAR(200) NOT NULL')
-        elif isinstance(self.ddl, SqliteDDL):
-            self.assertEqual(ret, 'ALTER TABLE category ADD "name" VARCHAR(200) NOT NULL')
-
-    def test_drop_column(self):
-        ret = self.ddl.drop_column(Category, "name")
-        self.assertEqual(ret, "ALTER TABLE category DROP COLUMN name")
-        self.assertEqual(ret, "ALTER TABLE category DROP COLUMN name")
-
-    def test_add_index(self):
-        index = self.ddl.add_index(Category, ["name"])
-        index_u = self.ddl.add_index(Category, ["name"], True)
-        if isinstance(self.ddl, MysqlDDL):
-            self.assertEqual(
-                index, "ALTER TABLE category ADD  INDEX idx_category_name_8b0cb9 (`name`)"
-            )
-            self.assertEqual(
-                index_u, "ALTER TABLE category ADD UNIQUE INDEX uid_category_name_8b0cb9 (`name`)"
-            )
-        elif isinstance(self.ddl, SqliteDDL):
-            self.assertEqual(
-                index_u, 'ALTER TABLE category ADD UNIQUE INDEX uid_category_name_8b0cb9 ("name")'
-            )
-            self.assertEqual(
-                index_u, 'ALTER TABLE category ADD UNIQUE INDEX uid_category_name_8b0cb9 ("name")'
-            )
-
-    def test_drop_index(self):
-        ret = self.ddl.drop_index(Category, ["name"])
-        self.assertEqual(ret, "ALTER TABLE category DROP INDEX idx_category_name_8b0cb9")
-        ret = self.ddl.drop_index(Category, ["name"], True)
-        self.assertEqual(ret, "ALTER TABLE category DROP INDEX uid_category_name_8b0cb9")
-
-    def test_add_fk(self):
-        ret = self.ddl.add_fk(Category, Category._meta.fields_map.get("user"))
-        self.assertEqual(
-            ret,
-            "ALTER TABLE category ADD CONSTRAINT `fk_category_user_e2e3874c` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`) ON DELETE CASCADE",
+COMMENT ON COLUMN "category"."user_id" IS 'User';"""
        )

-    def test_drop_fk(self):
-        ret = self.ddl.drop_fk(Category, Category._meta.fields_map.get("user"))
-        self.assertEqual(ret, "ALTER TABLE category DROP FOREIGN KEY fk_category_user_e2e3874c")
+
+def test_drop_table():
+    ret = Migrate.ddl.drop_table(Category)
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert ret == "DROP TABLE IF EXISTS `category`"
+    else:
+        assert ret == 'DROP TABLE IF EXISTS "category"'
+
+
+def test_add_column():
+    ret = Migrate.ddl.add_column(Category, Category._meta.fields_map.get("name"))
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert ret == "ALTER TABLE `category` ADD `name` VARCHAR(200) NOT NULL"
+    else:
+        assert ret == 'ALTER TABLE "category" ADD "name" VARCHAR(200) NOT NULL'
+
+
+def test_modify_column():
+    ret = Migrate.ddl.modify_column(Category, Category._meta.fields_map.get("name"))
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert ret == "ALTER TABLE `category` MODIFY COLUMN `name` VARCHAR(200) NOT NULL"
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'ALTER TABLE "category" ALTER COLUMN "name" TYPE VARCHAR(200)'
+    else:
+        assert ret == 'ALTER TABLE "category" MODIFY COLUMN "name" VARCHAR(200) NOT NULL'
+
+    ret = Migrate.ddl.modify_column(User, User._meta.fields_map.get("is_active"))
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert (
+            ret
+            == "ALTER TABLE `user` MODIFY COLUMN `is_active` BOOL NOT NULL  COMMENT 'Is Active' DEFAULT 1"
+        )
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'ALTER TABLE "user" ALTER COLUMN "is_active" TYPE BOOL'
+    else:
+        assert (
+            ret
+            == 'ALTER TABLE "user" MODIFY COLUMN "is_active" INT NOT NULL  DEFAULT 1 /* Is Active */'
+        )
+
+
+def test_alter_column_default():
+    ret = Migrate.ddl.alter_column_default(Category, Category._meta.fields_map.get("name"))
+    if isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'ALTER TABLE "category" ALTER COLUMN "name" DROP DEFAULT'
+    else:
+        assert ret is None
+
+    ret = Migrate.ddl.alter_column_default(Category, Category._meta.fields_map.get("created_at"))
+    if isinstance(Migrate.ddl, PostgresDDL):
+        assert (
+            ret == 'ALTER TABLE "category" ALTER COLUMN "created_at" SET DEFAULT CURRENT_TIMESTAMP'
+        )
+    else:
+        assert ret is None
+
+    ret = Migrate.ddl.alter_column_default(User, User._meta.fields_map.get("avatar"))
+    if isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'ALTER TABLE "user" ALTER COLUMN "avatar" SET DEFAULT \'\''
+    else:
+        assert ret is None
+
+
+def test_alter_column_null():
+    ret = Migrate.ddl.alter_column_null(Category, Category._meta.fields_map.get("name"))
+    if isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'ALTER TABLE "category" ALTER COLUMN "name" SET NOT NULL'
+    else:
+        assert ret is None
+
+
+def test_set_comment():
+    ret = Migrate.ddl.set_comment(Category, Category._meta.fields_map.get("name"))
+    if isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'COMMENT ON COLUMN "category"."name" IS NULL'
+    else:
+        assert ret is None
+
+    ret = Migrate.ddl.set_comment(Category, Category._meta.fields_map.get("user"))
+    if isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'COMMENT ON COLUMN "category"."user" IS \'User\''
+    else:
+        assert ret is None
+
+
+def test_drop_column():
+    ret = Migrate.ddl.drop_column(Category, "name")
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert ret == "ALTER TABLE `category` DROP COLUMN `name`"
+    else:
+        assert ret == 'ALTER TABLE "category" DROP COLUMN "name"'
+
+
+def test_add_index():
+    index = Migrate.ddl.add_index(Category, ["name"])
+    index_u = Migrate.ddl.add_index(Category, ["name"], True)
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert index == "ALTER TABLE `category` ADD  INDEX `idx_category_name_8b0cb9` (`name`)"
+        assert (
+            index_u == "ALTER TABLE `category` ADD UNIQUE INDEX `uid_category_name_8b0cb9` (`name`)"
+        )
+    else:
+        assert index == 'ALTER TABLE "category" ADD  INDEX "idx_category_name_8b0cb9" ("name")'
+        assert (
+            index_u == 'ALTER TABLE "category" ADD UNIQUE INDEX "uid_category_name_8b0cb9" ("name")'
+        )
+
+
+def test_drop_index():
+    ret = Migrate.ddl.drop_index(Category, ["name"])
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert ret == "ALTER TABLE `category` DROP INDEX `idx_category_name_8b0cb9`"
+    else:
+        assert ret == 'ALTER TABLE "category" DROP INDEX "idx_category_name_8b0cb9"'
+
+
+def test_add_fk():
+    ret = Migrate.ddl.add_fk(Category, Category._meta.fields_map.get("user"))
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert (
+            ret
+            == "ALTER TABLE `category` ADD CONSTRAINT `fk_category_user_e2e3874c` FOREIGN KEY (`user_id`) REFERENCES `user` (`id`) ON DELETE CASCADE"
+        )
+    else:
+        assert (
+            ret
+            == 'ALTER TABLE "category" ADD CONSTRAINT "fk_category_user_e2e3874c" FOREIGN KEY ("user_id") REFERENCES "user" ("id") ON DELETE CASCADE'
+        )
+
+
+def test_drop_fk():
+    ret = Migrate.ddl.drop_fk(Category, Category._meta.fields_map.get("user"))
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert ret == "ALTER TABLE `category` DROP FOREIGN KEY `fk_category_user_e2e3874c`"
+    else:
+        assert ret == 'ALTER TABLE "category" DROP FOREIGN KEY "fk_category_user_e2e3874c"'
--- a/tests/test_migrate.py
+++ b/tests/test_migrate.py
@@ -0,0 +1,30 @@
+from tortoise import Tortoise
+
+from aerich.ddl.mysql import MysqlDDL
+from aerich.migrate import Migrate
+
+
+def test_migrate():
+    apps = Tortoise.apps
+    models = apps.get("models")
+    diff_models = apps.get("diff_models")
+    Migrate.diff_models(diff_models, models)
+    Migrate.diff_models(models, diff_models, False)
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert Migrate.upgrade_operators == [
+            "ALTER TABLE `category` ADD `name` VARCHAR(200) NOT NULL",
+            "ALTER TABLE `user` ADD UNIQUE INDEX `uid_user_usernam_9987ab` (`username`)",
+        ]
+        assert Migrate.downgrade_operators == [
+            "ALTER TABLE `category` DROP COLUMN `name`",
+            "ALTER TABLE `user` DROP INDEX `uid_user_usernam_9987ab`",
+        ]
+    else:
+        assert Migrate.upgrade_operators == [
+            'ALTER TABLE "category" ADD "name" VARCHAR(200) NOT NULL',
+            'ALTER TABLE "user" ADD UNIQUE INDEX "uid_user_usernam_9987ab" ("username")',
+        ]
+        assert Migrate.downgrade_operators == [
+            'ALTER TABLE "category" DROP COLUMN "name"',
+            'ALTER TABLE "user" DROP INDEX "uid_user_usernam_9987ab"',
+        ]
Author	SHA1	Message	Date
long2ice	86e1d3defb	fix test error	2020-07-08 21:00:30 +08:00
long2ice	01fa7fbbdb	Merge pull request #21 from moubctez/postgresql_fixes Enhance PostgreSQL support	2020-07-08 20:54:40 +08:00
Adam Ciarciński	90196eb1bf	Apply black	2020-07-08 14:38:42 +02:00
Adam Ciarciński	3c111792a9	Enhance PostgreSQL support	2020-07-07 19:54:55 +02:00
long2ice	77e9d7bc91	update deps	2020-07-06 00:10:07 +08:00
long2ice	fe2ddff88b	update version	2020-06-24 15:17:52 +08:00
long2ice	0d23297f46	Fix bug in windows.	2020-06-24 15:17:30 +08:00
long2ice	6be6d55e5b	Merge remote-tracking branch 'origin/dev' into dev	2020-06-22 12:55:46 +08:00
long2ice	25674bc73a	update Makefile	2020-06-22 12:55:26 +08:00
long2ice	1715eda1a3	Merge pull request #11 from FutureSenzhong/dev updata:File operations use utf8 encoding	2020-06-22 12:27:22 +08:00
邓森中	f5775049dd	updata:File operations use utf8 encoding	2020-06-22 11:18:52 +08:00
long2ice	6fd0f8a42f	update README.md licence	2020-06-20 12:49:43 +08:00
long2ice	f52dc009af	update README.md	2020-06-20 12:48:32 +08:00
long2ice	9248d456f9	update license	2020-06-17 11:39:15 +08:00
long2ice	c24f2f6b09	update pyproject.toml	2020-06-12 18:11:19 +08:00
long2ice	73b75349ee	update version 0.2.0	2020-06-12 17:53:17 +08:00
long2ice	7bc553221a	raise NotImplementedError	2020-06-12 09:31:01 +08:00
long2ice	7413a05e19	set --safe bool	2020-06-08 18:07:41 +08:00
long2ice	bf194ca8ce	Update model file find method	2020-06-03 18:42:35 +08:00
long2ice	b06da0223a	add --build	2020-06-03 09:39:52 +08:00
long2ice	83554cdc5d	Merge remote-tracking branch 'origin/dev' into dev # Conflicts: # .github/workflows/pypi.yml # .github/workflows/test.yml # Makefile	2020-06-03 09:38:20 +08:00
long2ice	6c76bfccad	Merge remote-tracking branch 'origin/dev' into dev	2020-06-02 22:23:26 +08:00
long2ice	a1746e457c	update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions	2020-06-02 22:23:15 +08:00
long2ice	2a0435dea9	update github actions	2020-06-02 22:14:44 +08:00
long2ice	e87f67f1e1	update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions update github actions	2020-06-02 22:02:46 +08:00
long2ice	7b4b7ac749	update github actions	2020-06-02 18:58:59 +08:00
long2ice	5b9b51db3f	update github actions	2020-06-02 18:38:39 +08:00
long2ice	ffeee3c901	update github actions	2020-06-02 18:28:50 +08:00
long2ice	b4366d2427	update github actions	2020-06-02 18:20:55 +08:00
long2ice	ec1c80f3a9	remove requirements	2020-06-01 14:57:29 +08:00
long2ice	d2083632eb	add cli -V	2020-05-27 12:44:49 +08:00
long2ice	125389461f	check tortoise add aerich.models	2020-05-26 14:44:55 +08:00
long2ice	c09c878eaf	add support modify column diff mysql ddl	2020-05-26 10:22:02 +08:00
long2ice	ef3e0c11d5	update version	2020-05-25 23:46:35 +08:00
long2ice	881f70f748	Fix default_connection when upgrade	2020-05-25 23:44:42 +08:00
long2ice	6ffca1a0c7	add support modify column	2020-05-25 22:39:39 +08:00
long2ice	95e41720cb	Fix init db sql error	2020-05-25 18:53:34 +08:00
long2ice	40c0008e6e	Fix upgrade error when migrate	2020-05-25 18:02:56 +08:00
long2ice	ce75e55d60	update README.rst	2020-05-25 16:36:18 +08:00
long2ice	4d4f951e09	update README.rst	2020-05-25 16:33:56 +08:00
long2ice	354e861dad	add more test	2020-05-24 13:47:10 +08:00
long2ice	3a76486993	migrate raise error	2020-05-24 00:05:45 +08:00
long2ice	4d0a6b4de6	Fix version num str	2020-05-22 15:35:35 +08:00
long2ice	c01d2993e0	Exclude models.Aerich. Add init record when init-db.	2020-05-22 11:59:03 +08:00
long2ice	bab5ebf2f0	migrate exclude aerich.models	2020-05-22 11:14:16 +08:00
long2ice	7e5cefd7d6	write old models exclude aerich.models	2020-05-22 11:03:52 +08:00
long2ice	0cea28d521	update version	2020-05-21 23:57:13 +08:00
long2ice	b92e6551fd	update dependency_links	2020-05-21 23:33:58 +08:00
long2ice	bbabde32a1	update version	2020-05-21 21:24:21 +08:00