fix version sort

Merge pull request #32 from psbleep/close-tortoise-connections
Close database connections
2020-07-28 18:31:45 +08:00 · 2020-07-26 16:52:08 +08:00 · 2020-07-25 15:22:05 -04:00 · 2020-07-24 09:26:29 -04:00 · 2020-07-24 09:24:43 -04:00 · 2020-07-24 09:22:57 -04:00
26 changed files with 904 additions and 568 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
@@ -1,6 +1,23 @@
 =========
 ChangeLog
 =========
+0.2
+===
+
+0.2.2
+-----
+- Fix postgres drop fk.
+- Fix version sort.
+
+0.2.1
+-----
+- Fix bug in windows.
+- Enhance PostgreSQL support.
+
+0.2.0
+-----
+- Update model file find method.
+- Set ``--safe`` bool.

 0.1
 ===
--- a/214
+++ b/214
@@ -1,21 +1,201 @@
-The MIT License (MIT)
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/

-Copyright (c) 2020 long2ice
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION

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-copies of the Software, and to permit persons to whom the Software is
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--- a/MANIFEST.in
+++ b/MANIFEST.in
@@ -1,3 +0,0 @@
-include LICENSE
-include README.rst
-include requirements.txt
--- a/27
+++ b/27
@@ -18,23 +18,20 @@ help:
 	@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 +1,184 @@
+# 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)
+
+<a href="https://tracking.gitads.io/?repo=aerich"><img src="https://images.gitads.io/aerich" alt="GitAds"/></a>
+
+## 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
@@ -1,169 +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"
-
-.. 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
------------------------------
-
-.. 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
-
-Limitations
-===========
-* Not support ``rename column`` now.
-* ``Sqlite`` and ``Postgres`` may not work as expected because I don't use those in my work.
-
-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__ = "0.1.9"
+__version__ = "0.2.2"
--- a/aerich/cli.py
+++ b/aerich/cli.py
@@ -1,3 +1,4 @@
+import functools
 import json
 import os
 import sys
@@ -27,8 +28,18 @@ class Color(str, Enum):
 parser = ConfigParser()


+def close_db(func):
+    @functools.wraps(func)
+    async def close_db_inner(*args, **kwargs):
+        result = await func(*args, **kwargs)
+        await Tortoise.close_connections()
+        return result
+
+    return close_db_inner
+
+
@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.",
 )
@@ -70,6 +81,7 @@ async def cli(ctx: Context, config, app, name):
@cli.command(help="Generate migrate changes file.")
@click.option("--name", default="update", show_default=True, help="Migrate name.")
@click.pass_context
+@close_db
 async def migrate(ctx: Context, name):
    config = ctx.obj["config"]
    location = ctx.obj["location"]
@@ -84,6 +96,7 @@ async def migrate(ctx: Context, name):

@cli.command(help="Upgrade to latest version.")
@click.pass_context
+@close_db
 async def upgrade(ctx: Context):
    config = ctx.obj["config"]
    app = ctx.obj["app"]
@@ -96,12 +109,12 @@ async def upgrade(ctx: Context):
        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:
@@ -110,6 +123,7 @@ async def upgrade(ctx: Context):

@cli.command(help="Downgrade to previous version.")
@click.pass_context
+@close_db
 async def downgrade(ctx: Context):
    app = ctx.obj["app"]
    config = ctx.obj["config"]
@@ -119,11 +133,11 @@ 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(f"No downgrade item dound", fg=Color.yellow)
+                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()
@@ -132,6 +146,7 @@ async def downgrade(ctx: Context):

@cli.command(help="Show current available heads in migrate location.")
@click.pass_context
+@close_db
 async def heads(ctx: Context):
    app = ctx.obj["app"]
    versions = Migrate.get_all_version_files()
@@ -146,7 +161,8 @@ async def heads(ctx: Context):

@cli.command(help="List all migrate items.")
@click.pass_context
-def history(ctx):
+@close_db
+async def history(ctx: Context):
    versions = Migrate.get_all_version_files()
    for version in versions:
        click.secho(version, fg=Color.green)
@@ -177,7 +193,7 @@ 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):
@@ -190,12 +206,13 @@ 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,
 )
@click.pass_context
+@close_db
 async def init_db(ctx: Context, safe):
    config = ctx.obj["config"]
    location = ctx.obj["location"]
@@ -218,7 +235,7 @@ async def init_db(ctx: Context, safe):

    version = await Migrate.generate_version()
    await Aerich.create(version=version, app=app)
-    with open(os.path.join(dirname, version), "w") as f:
+    with open(os.path.join(dirname, version), "w", encoding="utf-8") as f:
        content = {
            "upgrade": [schema],
        }
--- a/aerich/ddl/init.py
+++ b/aerich/ddl/init.py
@@ -179,3 +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/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 +10,41 @@ 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}'
+    _DROP_FK_TEMPLATE = 'ALTER TABLE "{table_name}" DROP CONSTRAINT "{fk_name}"'
+
+    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 (
@@ -16,7 +17,7 @@ from tortoise import (
 from tortoise.fields import Field

 from aerich.ddl import BaseDDL
-from aerich.models import Aerich
+from aerich.models import MAX_VERSION_LENGTH, Aerich
 from aerich.utils import get_app_connection


@@ -35,6 +36,7 @@ class Migrate:
    diff_app = "diff_models"
    app: str
    migrate_location: str
+    dialect: str

    @classmethod
    def get_old_model_file(cls):
@@ -42,7 +44,10 @@ class Migrate:

    @classmethod
    def get_all_version_files(cls) -> List[str]:
-        return sorted(filter(lambda x: x.endswith("json"), os.listdir(cls.migrate_location)))
+        return sorted(
+            filter(lambda x: x.endswith("json"), os.listdir(cls.migrate_location)),
+            key=lambda x: x.split("_")[0],
+        )

    @classmethod
    async def get_last_version(cls) -> Aerich:
@@ -59,20 +64,19 @@ 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):
@@ -80,7 +84,7 @@ class Migrate:
        if not last_version:
            return None
        version = last_version.version
-        return int(version.split("_")[0])
+        return int(version.split("_", 1)[0])

    @classmethod
    async def generate_version(cls, name=None):
@@ -88,7 +92,10 @@ class Migrate:
        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"
+        version = f"{last_version_num + 1}_{now}_{name}.json"
+        if len(version) > MAX_VERSION_LENGTH:
+            raise ValueError(f"Version name exceeds maximum length ({MAX_VERSION_LENGTH})")
+        return version

    @classmethod
    async def _generate_diff_sql(cls, name):
@@ -97,7 +104,7 @@ class Migrate:
            "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

@@ -155,11 +162,11 @@ 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
@@ -173,7 +180,7 @@ class Migrate:
        """
        temp_config = deepcopy(config)
        path = os.path.join(location, app, cls.old_models)
-        path = path.replace("/", ".").lstrip(".")
+        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"),
@@ -194,8 +201,7 @@ class Migrate:
        old_model_files = []
        models = config.get("apps").get(app).get("models")
        for model in models:
-            if model != "aerich.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()))

@@ -274,6 +280,19 @@ class Migrate:
                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
@@ -367,6 +386,18 @@ 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)
--- a/aerich/models.py
+++ b/aerich/models.py
@@ -1,8 +1,10 @@
 from tortoise import Model, fields

+MAX_VERSION_LENGTH = 255
+

 class Aerich(Model):
-    version = fields.CharField(max_length=50)
+    version = fields.CharField(max_length=MAX_VERSION_LENGTH)
    app = fields.CharField(max_length=20)

    class Meta:
--- 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
@@ -16,7 +16,7 @@ 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",},
+        "models": {"models": ["tests.models", "aerich.models"], "default_connection": "default"},
    },
 }

--- 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"

@@ -18,7 +18,10 @@ description = "asyncio bridge to the standard sqlite3 module"
 name = "aiosqlite"
 optional = false
 python-versions = ">=3.6"
-version = "0.13.0"
+version = "0.15.0"
+
+[package.dependencies]
+typing_extensions = "*"

 [[package]]
 category = "main"
@@ -26,10 +29,11 @@ description = "High level compatibility layer for multiple asynchronous event lo
 name = "anyio"
 optional = false
 python-versions = ">=3.5.3"
-version = "1.3.0"
+version = "1.4.0"

 [package.dependencies]
 async-generator = "*"
+idna = ">=2.8"
 sniffio = ">=1.1"

 [package.extras]
@@ -78,10 +82,10 @@ 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"

@@ -113,6 +117,21 @@ 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."
@@ -134,25 +153,16 @@ 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"
@@ -164,17 +174,17 @@ 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"

@@ -209,17 +219,66 @@ 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 = "3.8.2"
+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.dependencies.importlib-metadata]
+python = "<3.8"
+version = "*"
+
+[[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 = "3.1.7"
+
+[package.dependencies]
+gitdb = ">=4.0.1,<5"
+
+[[package]]
+category = "main"
+description = "Internationalized Domain Names in Applications (IDNA)"
+name = "idna"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.10"
+
+[[package]]
+category = "dev"
+description = "Read metadata from Python packages"
+marker = "python_version < \"3.8\""
+name = "importlib-metadata"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+version = "1.7.0"
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["sphinx", "rst.linker"]
+testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
+
 [[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 = "*"
@@ -230,14 +289,12 @@ 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 = "5.1.3"

 [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"
@@ -253,31 +310,7 @@ 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"
@@ -299,6 +332,14 @@ 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"
@@ -307,6 +348,11 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
 version = "0.13.1"

+[package.dependencies]
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12"
+
 [package.extras]
 dev = ["pre-commit", "tox"]

@@ -316,7 +362,7 @@ 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"
@@ -327,10 +373,10 @@ 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"

@@ -340,7 +386,7 @@ description = "Data validation and settings management using python 3.6 type hin
 name = "pydantic"
 optional = false
 python-versions = ">=3.6"
-version = "1.5.1"
+version = "1.6.1"

 [package.extras]
 dotenv = ["python-dotenv (>=0.10.4)"]
@@ -356,10 +402,10 @@ 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"

@@ -380,7 +426,7 @@ description = "A SQL query builder API for Python"
 name = "pypika"
 optional = false
 python-versions = "*"
-version = "0.37.6"
+version = "0.37.16"

 [[package]]
 category = "dev"
@@ -388,7 +434,7 @@ 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"
@@ -400,6 +446,10 @@ pluggy = ">=0.12,<1.0"
 py = ">=1.5.0"
 wcwidth = "*"

+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12"
+
 [package.extras]
 checkqa-mypy = ["mypy (v0.761)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]
@@ -410,21 +460,21 @@ description = "Pytest support for asyncio."
 name = "pytest-asyncio"
 optional = false
 python-versions = ">= 3.5"
-version = "0.12.0"
+version = "0.14.0"

 [package.dependencies]
 pytest = ">=5.4.0"

 [package.extras]
-testing = ["async_generator (>=1.3)", "coverage", "hypothesis (>=5.7.1)"]
+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"
@@ -435,7 +485,7 @@ description = "pytest xdist plugin for distributed testing and loop-on-failing m
 name = "pytest-xdist"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.32.0"
+version = "1.33.0"

 [package.dependencies]
 execnet = ">=1.1"
@@ -446,22 +496,38 @@ 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 = "2020.7.14"

 [[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 = "1.15.0"

+[[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"
 description = "Sniff out which async library your code is running under"
@@ -472,14 +538,18 @@ 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 = "3.2.0"

 [package.dependencies]
-toml = ">=0.10.0,<0.11.0"
+pbr = ">=2.0.0,<2.1.0 || >2.1.0"
+
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=1.7.0"

 [[package]]
 category = "dev"
@@ -495,15 +565,17 @@ description = "Easy async ORM for python, built with relations in mind"
 name = "tortoise-orm"
 optional = false
 python-versions = "*"
-version = "0.16.12"
+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.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"
@@ -522,15 +594,31 @@ 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"
+
+[[package]]
+category = "dev"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+marker = "python_version < \"3.8\""
+name = "zipp"
+optional = false
+python-versions = ">=3.6"
+version = "3.1.0"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
+testing = ["jaraco.itertools", "func-timeout"]
+
+[extras]
+dbdrivers = ["aiomysql", "asyncpg"]

 [metadata]
-content-hash = "35274e9622d359af475f573760ba687b31756b1b1de70bc4d75dab5ddbc5a93d"
-python-versions = "^3.8"
+content-hash = "2e02de89517b7461909007ef09e1697e78a4202ffe086444e6027a0a91db58b7"
+python-versions = "^3.7"

 [metadata.files]
 aiomysql = [
@@ -538,12 +626,12 @@ aiomysql = [
    {file = "aiomysql-0.0.20.tar.gz", hash = "sha256:d89ce25d44dadb43cf2d9e4603bd67b7a0ad12d5e67208de013629ba648df2ba"},
 ]
 aiosqlite = [
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-    {file = "aiosqlite-0.13.0.tar.gz", hash = "sha256:6e92961ae9e606b43b05e29b129e346b29e400fcbd63e3c0c564d89230257645"},
+    {file = "aiosqlite-0.15.0-py3-none-any.whl", hash = "sha256:19b984b6702aed9f1c85c023f37296954547fc4030dae8e9d027b2a930bed78b"},
+    {file = "aiosqlite-0.15.0.tar.gz", hash = "sha256:a2884793f4dc8f2798d90e1dfecb2b56a6d479cf039f7ec52356a7fd5f3bdc57"},
 ]
 anyio = [
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-    {file = "anyio-1.3.0.tar.gz", hash = "sha256:7deae0315dd10aa41c21528b83352e4b52f44e6153a21081a3d1cd8c03728e46"},
+    {file = "anyio-1.4.0-py3-none-any.whl", hash = "sha256:9ee67e8131853f42957e214d4531cee6f2b66dda164a298d9686a768b7161a4f"},
+    {file = "anyio-1.4.0.tar.gz", hash = "sha256:95f60964fc4583f3f226f8dc275dfb02aefe7b39b85a999c6d14f4ec5323c1d8"},
 ]
 apipkg = [
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@@ -591,6 +679,10 @@ 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"},
@@ -625,9 +717,6 @@ cffi = [
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    {file = "cffi-1.14.0.tar.gz", hash = "sha256:2d384f4a127a15ba701207f7639d94106693b6cd64173d6c8988e2c25f3ac2b6"},
 ]
-ciso8601 = [
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 click = [
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    {file = "click-7.1.2.tar.gz", hash = "sha256:d2b5255c7c6349bc1bd1e59e08cd12acbbd63ce649f2588755783aa94dfb6b1a"},
@@ -662,8 +751,24 @@ execnet = [
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 ]
 flake8 = [
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-    {file = "flake8-3.8.2.tar.gz", hash = "sha256:c69ac1668e434d37a2d2880b3ca9aafd54b3a10a3ac1ab101d22f29e29cf8634"},
+    {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 = [
+    {file = "GitPython-3.1.7-py3-none-any.whl", hash = "sha256:fa3b92da728a457dd75d62bb5f3eb2816d99a7fe6c67398e260637a40e3fafb5"},
+    {file = "GitPython-3.1.7.tar.gz", hash = "sha256:2db287d71a284e22e5c2846042d0602465c7434d910406990d5b74df4afb0858"},
+]
+idna = [
+    {file = "idna-2.10-py2.py3-none-any.whl", hash = "sha256:b97d804b1e9b523befed77c48dacec60e6dcb0b5391d57af6a65a312a90648c0"},
+    {file = "idna-2.10.tar.gz", hash = "sha256:b307872f855b18632ce0c21c5e45be78c0ea7ae4c15c828c20788b26921eb3f6"},
+]
+importlib-metadata = [
+    {file = "importlib_metadata-1.7.0-py2.py3-none-any.whl", hash = "sha256:dc15b2969b4ce36305c51eebe62d418ac7791e9a157911d58bfb1f9ccd8e2070"},
+    {file = "importlib_metadata-1.7.0.tar.gz", hash = "sha256:90bb658cdbbf6d1735b6341ce708fc7024a3e14e99ffdc5783edea9f9b077f83"},
 ]
 iso8601 = [
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@@ -671,36 +776,16 @@ iso8601 = [
    {file = "iso8601-0.1.12.tar.gz", hash = "sha256:49c4b20e1f38aa5cf109ddcd39647ac419f928512c869dc01d5c7098eddede82"},
 ]
 isort = [
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-    {file = "isort-4.3.21.tar.gz", hash = "sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1"},
+    {file = "isort-5.1.3-py3-none-any.whl", hash = "sha256:001ab55382453892ddb6956f65c6331f610041eed7ddc9c6bdf7975cb504f66f"},
+    {file = "isort-5.1.3.tar.gz", hash = "sha256:9be41d107294ddf25ef6af83979cb3dfa1b5752311b6d50611c8f8d321d4a4eb"},
 ]
 mccabe = [
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 ]
 more-itertools = [
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-]
-mypy = [
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-]
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+    {file = "more_itertools-8.4.0-py3-none-any.whl", hash = "sha256:b78134b2063dd214000685165d81c154522c3ee0a1c0d4d113c80361c234c5a2"},
 ]
 packaging = [
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@@ -710,13 +795,17 @@ pathspec = [
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 ]
+pbr = [
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+    {file = "pbr-5.4.5.tar.gz", hash = "sha256:07f558fece33b05caf857474a366dfcc00562bca13dd8b47b2b3e22d9f9bf55c"},
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 pluggy = [
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 ]
 py = [
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-    {file = "py-1.8.1.tar.gz", hash = "sha256:5e27081401262157467ad6e7f851b7aa402c5852dbcb3dae06768434de5752aa"},
+    {file = "py-1.9.0-py2.py3-none-any.whl", hash = "sha256:366389d1db726cd2fcfc79732e75410e5fe4d31db13692115529d34069a043c2"},
+    {file = "py-1.9.0.tar.gz", hash = "sha256:9ca6883ce56b4e8da7e79ac18787889fa5206c79dcc67fb065376cd2fe03f342"},
 ]
 pycodestyle = [
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@@ -727,23 +816,23 @@ pycparser = [
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+    {file = "regex-2020.7.14.tar.gz", hash = "sha256:3a3af27a8d23143c49a3420efe5b3f8cf1a48c6fc8bc6856b03f638abc1833bb"},
 ]
 six = [
    {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-3.2.0-py3-none-any.whl", hash = "sha256:c8f4f0ebbc394e52ddf49de8bcc3cf8ad2b4425ebac494106bbc5e3661ac7633"},
+    {file = "stevedore-3.2.0.tar.gz", hash = "sha256:38791aa5bed922b0a844513c5f9ed37774b68edc609e5ab8ab8d8fe0ce4315e5"},
 ]
 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 = [
-    {file = "tortoise-orm-0.16.12.tar.gz", hash = "sha256:170e4bbfe1c98223ad1fba33d7fded7923e4bb49c9d74c78bd173a0ebc861658"},
+    {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"},
@@ -846,6 +952,10 @@ 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"},
+]
+zipp = [
+    {file = "zipp-3.1.0-py3-none-any.whl", hash = "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b"},
+    {file = "zipp-3.1.0.tar.gz", hash = "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"},
 ]
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,32 +1,42 @@
 [tool.poetry]
 name = "aerich"
-version = "0.1.9"
+version = "0.2.2"
 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"
+python = "^3.7"
 tortoise-orm = "*"
 asyncclick = "*"
 pydantic = "*"
+aiomysql = {version = "*", optional = true}
+asyncpg = {version = "*", optional = true}

 [tool.poetry.dev-dependencies]
-taskipy = "*"
 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
-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==3.8.2
-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-asyncio==0.12.0
-pytest-forked==1.1.3
-pytest-xdist==1.32.0
-regex==2020.5.14
-six==1.15.0
-sniffio==1.1.0
-taskipy==1.2.1
-toml==0.10.1
-tortoise-orm==0.16.12
-typed-ast==1.4.1
-typing-extensions==3.7.4.2
-wcwidth==0.1.9
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,11 +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
-tortoise-orm==0.16.12
-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/tortoise-orm/tortoise-orm.git@develop#egg=tortoise-orm'],
-    install_requires=requirements(),
-)
--- a/tests/test_ddl.py
+++ b/tests/test_ddl.py
@@ -2,7 +2,7 @@ from aerich.ddl.mysql import MysqlDDL
 from aerich.ddl.postgres import PostgresDDL
 from aerich.ddl.sqlite import SqliteDDL
 from aerich.migrate import Migrate
-from tests.models import Category
+from tests.models import Category, User


 def test_create_table():
@@ -66,9 +66,69 @@ 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")
@@ -119,5 +179,7 @@ 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`"
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'ALTER TABLE "category" DROP CONSTRAINT "fk_category_user_e2e3874c"'
    else:
        assert ret == 'ALTER TABLE "category" DROP FOREIGN KEY "fk_category_user_e2e3874c"'
Author	SHA1	Message	Date
long2ice	e1ffcb609b	fix version sort	2020-07-28 18:31:45 +08:00
long2ice	18cb75f555	Merge pull request #32 from psbleep/close-tortoise-connections Close database connections	2020-07-26 16:52:08 +08:00
Patrick Schneeweis	dfe13ea250	add type hint	2020-07-25 15:22:05 -04:00
Patrick Schneeweis	b97ce0ff2f	Use close_db decorator on history command	2020-07-24 09:26:29 -04:00
Patrick Schneeweis	21001c0eda	Make history command into async function The close_db decorator requires async functions	2020-07-24 09:24:43 -04:00
Patrick Schneeweis	9bd96a9487	Use close_db decorator on command functions	2020-07-24 09:22:57 -04:00
Patrick Schneeweis	5bdaa32a9e	Decorator for closing db connection after func run	2020-07-24 09:17:19 -04:00
long2ice	d74e7b5630	Merge pull request #30 from psbleep/longer-migration-version-names Allow longer migration version names	2020-07-24 10:28:52 +08:00
Patrick Schneeweis	119b15d597	style fixes	2020-07-23 21:29:26 -04:00
Patrick Schneeweis	f93ab6bbff	Raise name length error when creating migration. Currently this error gets raised when trying to apply the migration, but it seems better to learn about it when trying to create the migration.	2020-07-23 21:22:30 -04:00
Patrick Schneeweis	bd8eb94a6e	Increase max length of version column	2020-07-23 21:21:58 -04:00
long2ice	2fcb2626fd	Fix postgres drop fk	2020-07-20 10:20:08 +08:00
long2ice	3728db4279	Merge remote-tracking branch 'origin/dev' into dev	2020-07-15 12:58:56 +08:00
long2ice	6ac1fb5332	add ads	2020-07-15 12:58:34 +08:00
long2ice	87a17d443c	update py version 3.7	2020-07-13 20:32:14 +08:00
long2ice	55f18a69ed	Merge pull request #23 from long2ice/master Master	2020-07-09 14:34:37 +08:00
long2ice	86a9c4cedd	Merge branch 'dev'	2020-07-09 14:28:09 +08:00
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	19c9c2c30f	Merge branch 'dev'	2020-06-12 17:53:30 +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	dc8b4c2263	Merge remote-tracking branch 'origin/master'	2020-05-27 11:22:01 +08:00
long2ice	cb5dffeeb8	Merge branch 'dev'	2020-05-26 20:05:35 +08:00