Merge pull request #111 from lqmanh/bugfixes/fix-tortoise-orm-0.16.19

Fix Aerich b/c of a new feature in Tortoise ORM v0.16.19
update CHANGELOG.md
2021-01-04 14:59:11 +08:00 · 2020-12-29 19:13:37 +08:00 · 2020-12-29 19:12:36 +08:00 · 2020-12-26 10:31:10 +07:00 · 2020-12-25 22:10:56 +08:00 · 2020-12-25 21:44:26 +08:00
18 changed files with 546 additions and 301 deletions
--- a/.DS_Store
+++ b/.DS_Store
--- a/.github/workflows/pypi.yml
+++ b/.github/workflows/pypi.yml
@@ -11,11 +11,14 @@ jobs:
      - uses: actions/setup-python@v2
        with:
          python-version: '3.x'
-      - uses: dschep/install-poetry-action@v1.3
+      - name: Install and configure Poetry
+        uses: snok/install-poetry@v1.1.1
+        with:
+          virtualenvs-create: false
      - name: Build dists
        run: make build
      - name: Pypi Publish
        uses: pypa/gh-action-pypi-publish@master
        with:
          user: __token__
-          password: ${{ secrets.pypi_password }}
+          password: ${{ secrets.pypi_password }}
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -1,5 +1,5 @@
 name: test
-on: [push, pull_request]
+on: [ push, pull_request ]
 jobs:
  testall:
    runs-on: ubuntu-latest
@@ -19,7 +19,10 @@ jobs:
      - uses: actions/setup-python@v2
        with:
          python-version: '3.x'
-      - uses: dschep/install-poetry-action@v1.3
+      - name: Install and configure Poetry
+        uses: snok/install-poetry@v1.1.1
+        with:
+          virtualenvs-create: false
      - name: CI
        env:
          MYSQL_PASS: root
@@ -28,4 +31,4 @@ jobs:
          POSTGRES_PASS: 123456
          POSTGRES_HOST: 127.0.0.1
          POSTGRES_PORT: 5432
-        run: make ci
+        run: make ci
--- a/.gitignore
+++ b/.gitignore
@@ -144,4 +144,5 @@ cython_debug/
 migrations
 aerich.ini
 src
-.vscode
+.vscode
+.DS_Store
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,33 @@
 # ChangeLog

+## 0.4
+
+### 0.4.4
+
+- Fix unnecessary import. (#113)
+
+### 0.4.3
+
+- Replace migrations separator to sql standard comment.
+- Add `inspectdb` command.
+
+### 0.4.2
+
+- Use `pathlib` for path resolving. (#89)
+- Fix upgrade in new db. (#96)
+- Fix packaging error. (#92)
+
+### 0.4.1
+
+- Bug fix. (#91 #93)
+
+### 0.4.0
+
+- Use `.sql` instead of `.json` to store version file.
+- Add `rename` column support MySQL5.
+- Remove callable detection for defaults. (#87)
+- Fix `sqlite` stuck. (#90)
+
 ## 0.3

 ### 0.3.3
@@ -22,10 +50,10 @@
 - Refactoring migrate logic, and this version is not compatible with previous version.
 - Now there don't need `old_models.py` and it store in database.
 - Upgrade steps:
-  1. Upgrade aerich version.
-  2. Drop aerich table in database.
-  3. Delete `migrations/{app}` folder and rerun `aerich init-db`.
-  4. Update model and `aerich migrate` normally.
+    1. Upgrade aerich version.
+    2. Drop aerich table in database.
+    3. Delete `migrations/{app}` folder and rerun `aerich init-db`.
+    4. Update model and `aerich migrate` normally.

 ## 0.2

--- a/2
+++ b/2
@@ -3,8 +3,10 @@ black_opts = -l 100 -t py38
 py_warn = PYTHONDEVMODE=1
 MYSQL_HOST ?= "127.0.0.1"
 MYSQL_PORT ?= 3306
+MYSQL_PASS ?= "123456"
 POSTGRES_HOST ?= "127.0.0.1"
 POSTGRES_PORT ?= 5432
+POSTGRES_PASS ?= "123456"

 help:
 	@echo "Aerich development makefile"
--- a/README.md
+++ b/README.md
@@ -7,8 +7,8 @@

 ## Introduction

-Aerich is a database migrations tool for Tortoise-ORM, which like alembic for SQLAlchemy, or Django ORM with it\'s
-own migrations solution.
+Aerich is a database migrations tool for Tortoise-ORM, which like alembic for SQLAlchemy, or Django ORM with it\'s own
+migrations solution.

 **Important: You can only use absolutely import in your `models.py` to make `aerich` work.**

@@ -40,14 +40,14 @@ Commands:
  history    List all migrate items.
  init       Init config file and generate root migrate location.
  init-db    Generate schema and generate app migrate location.
+  inspectdb  Introspects the database tables to standard output as...
  migrate    Generate migrate changes file.
  upgrade    Upgrade to latest version.
 ```

 ## Usage

-You need add `aerich.models` to your `Tortoise-ORM` config first,
-example:
+You need add `aerich.models` to your `Tortoise-ORM` config first, example:

 ```python
 TORTOISE_ORM = {
@@ -103,22 +103,21 @@ If your Tortoise-ORM app is not default `models`, you must specify
 ```shell
 > aerich migrate --name drop_column

-Success migrate 1_202029051520102929_drop_column.json
+Success migrate 1_202029051520102929_drop_column.sql
 ```

 Format of migrate filename is
-`{version_num}_{datetime}_{name|update}.json`.
+`{version_num}_{datetime}_{name|update}.sql`.

-And if `aerich` guess you are renaming a column, it will ask `Rename {old_column} to {new_column} [True]`, you can choice `True` to rename column without column drop, or choice `False` to drop column then create.
-
-If you use `MySQL`, only MySQL8.0+ support `rename..to` syntax.
+And if `aerich` guess you are renaming a column, it will ask `Rename {old_column} to {new_column} [True]`, you can
+choice `True` to rename column without column drop, or choice `False` to drop column then create.

 ### Upgrade to latest version

 ```shell
 > aerich upgrade

-Success upgrade 1_202029051520102929_drop_column.json
+Success upgrade 1_202029051520102929_drop_column.sql
 ```

 Now your db is migrated to latest.
@@ -134,13 +133,17 @@ Usage: aerich downgrade [OPTIONS]

 Options:
  -v, --version INTEGER  Specified version, default to last.  [default: -1]
+  -d, --delete           Delete version files at the same time.  [default:
+                         False]
+
+  --yes                  Confirm the action without prompting.
  -h, --help             Show this message and exit.
 ```

 ```shell
 > aerich downgrade

-Success downgrade 1_202029051520102929_drop_column.json
+Success downgrade 1_202029051520102929_drop_column.sql
 ```

 Now your db rollback to specified version.
@@ -150,7 +153,7 @@ Now your db rollback to specified version.
 ```shell
 > aerich history

-1_202029051520102929_drop_column.json
+1_202029051520102929_drop_column.sql
 ```

 ### Show heads to be migrated
@@ -158,9 +161,36 @@ Now your db rollback to specified version.
 ```shell
 > aerich heads

-1_202029051520102929_drop_column.json
+1_202029051520102929_drop_column.sql
 ```

+### Inspect db tables to TortoiseORM model
+
+```shell
+Usage: aerich inspectdb [OPTIONS]
+
+  Introspects the database tables to standard output as TortoiseORM model.
+
+Options:
+  -t, --table TEXT  Which tables to inspect.
+  -h, --help        Show this message and exit.
+```
+
+Inspect all tables and print to console:
+
+```shell
+aerich --app models inspectdb -t user 
+```
+
+Inspect a specified table in default app and redirect to `models.py`:
+
+```shell
+aerich inspectdb -t user > models.py
+```
+
+Note that this command is restricted, which is not supported in some solutions, such as `IntEnumField`
+and `ForeignKeyField` and so on.
+
 ### Multiple databases

 ```python
@@ -171,7 +201,7 @@ tortoise_orm = {
    },
    "apps": {
        "models": {"models": ["tests.models", "aerich.models"], "default_connection": "default"},
-        "models_second": {"models": ["tests.models_second"], "default_connection": "second",},
+        "models_second": {"models": ["tests.models_second"], "default_connection": "second", },
    },
 }
 ```
--- a/aerich/init.py
+++ b/aerich/init.py
@@ -1 +1 @@
-__version__ = "0.3.3"
+__version__ = "0.4.4"
--- a/aerich/cli.py
+++ b/aerich/cli.py
@@ -1,9 +1,10 @@
 import asyncio
-import json
 import os
 import sys
 from configparser import ConfigParser
 from functools import wraps
+from pathlib import Path
+from typing import List

 import click
 from click import Context, UsageError
@@ -12,8 +13,15 @@ from tortoise.exceptions import OperationalError
 from tortoise.transactions import in_transaction
 from tortoise.utils import get_schema_sql

+from aerich.inspectdb import InspectDb
 from aerich.migrate import Migrate
-from aerich.utils import get_app_connection, get_app_connection_name, get_tortoise_config
+from aerich.utils import (
+    get_app_connection,
+    get_app_connection_name,
+    get_tortoise_config,
+    get_version_content_from_file,
+    write_version_file,
+)

 from . import __version__
 from .enums import Color
@@ -61,7 +69,7 @@ async def cli(ctx: Context, config, app, name):

    invoked_subcommand = ctx.invoked_subcommand
    if invoked_subcommand != "init":
-        if not os.path.exists(config):
+        if not Path(config).exists():
            raise UsageError("You must exec init first", ctx=ctx)
        parser.read(config)

@@ -75,6 +83,8 @@ async def cli(ctx: Context, config, app, name):
        ctx.obj["app"] = app
        Migrate.app = app
        if invoked_subcommand != "init-db":
+            if not Path(location, app).exists():
+                raise UsageError("You must exec init-db first", ctx=ctx)
            await Migrate.init_with_old_models(tortoise_config, app, location)


@@ -104,12 +114,11 @@ async def upgrade(ctx: Context):
            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_file)
-                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_script(upgrade_query)
+                file_path = Path(Migrate.migrate_location, version_file)
+                content = get_version_content_from_file(file_path)
+                upgrade_query_list = content.get("upgrade")
+                for upgrade_query in upgrade_query_list:
+                    await conn.execute_script(upgrade_query)
                await Aerich.create(
                    version=version_file,
                    app=app,
@@ -118,7 +127,7 @@ async def upgrade(ctx: Context):
            click.secho(f"Success upgrade {version_file}", fg=Color.green)
            migrated = True
    if not migrated:
-        click.secho("No migrate items", fg=Color.yellow)
+        click.secho("No upgrade items found", fg=Color.yellow)


@cli.command(help="Downgrade to specified version.")
@@ -130,12 +139,20 @@ async def upgrade(ctx: Context):
    show_default=True,
    help="Specified version, default to last.",
 )
+@click.option(
+    "-d",
+    "--delete",
+    is_flag=True,
+    default=False,
+    show_default=True,
+    help="Delete version files at the same time.",
+)
@click.pass_context
@click.confirmation_option(
    prompt="Downgrade is dangerous, which maybe lose your data, are you sure?",
 )
@coro
-async def downgrade(ctx: Context, version: int):
+async def downgrade(ctx: Context, version: int, delete: bool):
    app = ctx.obj["app"]
    config = ctx.obj["config"]
    if version == -1:
@@ -151,16 +168,17 @@ async def downgrade(ctx: Context, version: int):
    for version in versions:
        file = 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", 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 version.delete()
-            os.unlink(file_path)
+            file_path = Path(Migrate.migrate_location, file)
+            content = get_version_content_from_file(file_path)
+            downgrade_query_list = content.get("downgrade")
+            if not downgrade_query_list:
+                click.secho("No downgrade items found", fg=Color.yellow)
+                return
+            for downgrade_query in downgrade_query_list:
+                await conn.execute_query(downgrade_query)
+            await version.delete()
+            if delete:
+                os.unlink(file_path)
            click.secho(f"Success downgrade {file}", fg=Color.green)


@@ -212,7 +230,7 @@ async def init(
 ):
    config_file = ctx.obj["config_file"]
    name = ctx.obj["name"]
-    if os.path.exists(config_file):
+    if Path(config_file).exists():
        return click.secho("You have inited", fg=Color.yellow)

    parser.add_section(name)
@@ -222,8 +240,7 @@ async def init(
    with open(config_file, "w", encoding="utf-8") as f:
        parser.write(f)

-    if not os.path.isdir(location):
-        os.mkdir(location)
+    Path(location).mkdir(parents=True, exist_ok=True)

    click.secho(f"Success create migrate location {location}", fg=Color.green)
    click.secho(f"Success generate config file {config_file}", fg=Color.green)
@@ -244,12 +261,14 @@ async def init_db(ctx: Context, safe):
    location = ctx.obj["location"]
    app = ctx.obj["app"]

-    dirname = os.path.join(location, app)
-    if not os.path.isdir(dirname):
-        os.mkdir(dirname)
+    dirname = Path(location, app)
+    try:
+        dirname.mkdir(parents=True)
        click.secho(f"Success create app migrate location {dirname}", fg=Color.green)
-    else:
-        return click.secho(f"Inited {app} already", fg=Color.yellow)
+    except FileExistsError:
+        return click.secho(
+            f"Inited {app} already, or delete {dirname} and try again.", fg=Color.yellow
+        )

    await Tortoise.init(config=config)
    connection = get_app_connection(config, app)
@@ -263,12 +282,30 @@ async def init_db(ctx: Context, safe):
        app=app,
        content=Migrate.get_models_content(config, app, location),
    )
-    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)
+    content = {
+        "upgrade": [schema],
+    }
+    write_version_file(Path(dirname, version), content)
+    click.secho(f'Success generate schema for app "{app}"', fg=Color.green)
+
+
+@cli.command(help="Introspects the database tables to standard output as TortoiseORM model.")
+@click.option(
+    "-t",
+    "--table",
+    help="Which tables to inspect.",
+    multiple=True,
+    required=False,
+)
+@click.pass_context
+@coro
+async def inspectdb(ctx: Context, table: List[str]):
+    config = ctx.obj["config"]
+    app = ctx.obj["app"]
+    connection = get_app_connection(config, app)
+
+    inspect = InspectDb(connection, table)
+    await inspect.inspect()


 def main():
--- a/aerich/ddl/init.py
+++ b/aerich/ddl/init.py
@@ -22,6 +22,9 @@ class BaseDDL:
    _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 {on_delete}){extra}{comment};'
    _MODIFY_COLUMN_TEMPLATE = 'ALTER TABLE "{table_name}" MODIFY COLUMN {column}'
+    _CHANGE_COLUMN_TEMPLATE = (
+        'ALTER TABLE "{table_name}" CHANGE {old_column_name} {new_column_name} {new_column_type}'
+    )

    def __init__(self, client: "BaseDBAsyncClient"):
        self.client = client
@@ -136,6 +139,16 @@ class BaseDDL:
            new_column_name=new_column_name,
        )

+    def change_column(
+        self, model: "Type[Model]", old_column_name: str, new_column_name: str, new_column_type: str
+    ):
+        return self._CHANGE_COLUMN_TEMPLATE.format(
+            table_name=model._meta.db_table,
+            old_column_name=old_column_name,
+            new_column_name=new_column_name,
+            new_column_type=new_column_type,
+        )
+
    def add_index(self, model: "Type[Model]", field_names: List[str], unique=False):
        return self._ADD_INDEX_TEMPLATE.format(
            unique="UNIQUE" if unique else "",
--- a/aerich/inspectdb.py
+++ b/aerich/inspectdb.py
@@ -0,0 +1,85 @@
+import sys
+from typing import List, Optional
+
+from ddlparse import DdlParse
+from tortoise import BaseDBAsyncClient
+
+
+class InspectDb:
+    _table_template = "class {table}(Model):\n"
+    _field_template_mapping = {
+        "INT": "    {field} = fields.IntField({pk}{unique}{comment})",
+        "SMALLINT": "    {field} = fields.IntField({pk}{unique}{comment})",
+        "TINYINT": "    {field} = fields.BooleanField({null}{default}{comment})",
+        "VARCHAR": "    {field} = fields.CharField({pk}{unique}{length}{null}{default}{comment})",
+        "LONGTEXT": "    {field} = fields.TextField({null}{default}{comment})",
+        "TEXT": "    {field} = fields.TextField({null}{default}{comment})",
+        "DATETIME": "    {field} = fields.DatetimeField({null}{default}{comment})",
+    }
+
+    def __init__(self, conn: BaseDBAsyncClient, tables: Optional[List[str]] = None):
+        self.conn = conn
+        self.tables = tables
+        self.DIALECT = conn.schema_generator.DIALECT
+
+    async def show_create_tables(self):
+        if self.DIALECT == "mysql":
+            if not self.tables:
+                sql_tables = f"SELECT table_name FROM information_schema.tables WHERE table_schema = '{self.conn.database}';"  # nosec: B608
+                ret = await self.conn.execute_query(sql_tables)
+                self.tables = map(lambda x: x["TABLE_NAME"], ret[1])
+            for table in self.tables:
+                sql_show_create_table = f"SHOW CREATE TABLE {table}"
+                ret = await self.conn.execute_query(sql_show_create_table)
+                yield ret[1][0]["Create Table"]
+        else:
+            raise NotImplementedError("Currently only support MySQL")
+
+    async def inspect(self):
+        ddl_list = self.show_create_tables()
+        result = "from tortoise import Model, fields\n\n\n"
+        tables = []
+        async for ddl in ddl_list:
+            parser = DdlParse(ddl, DdlParse.DATABASE.mysql)
+            table = parser.parse()
+            name = table.name.title()
+            columns = table.columns
+            fields = []
+            model = self._table_template.format(table=name)
+            for column_name, column in columns.items():
+                comment = default = length = unique = null = pk = ""
+                if column.primary_key:
+                    pk = "pk=True, "
+                if column.unique:
+                    unique = "unique=True, "
+                if column.data_type == "VARCHAR":
+                    length = f"max_length={column.length}, "
+                if not column.not_null:
+                    null = "null=True, "
+                if column.default is not None:
+                    if column.data_type == "TINYINT":
+                        default = f"default={'True' if column.default == '1' else 'False'}, "
+                    elif column.data_type == "DATETIME":
+                        if "CURRENT_TIMESTAMP" in column.default:
+                            if "ON UPDATE CURRENT_TIMESTAMP" in ddl:
+                                default = "auto_now_add=True, "
+                            else:
+                                default = "auto_now=True, "
+                    else:
+                        default = f"default={column.default}, "
+
+                if column.comment:
+                    comment = f"description='{column.comment}', "
+
+                field = self._field_template_mapping[column.data_type].format(
+                    field=column_name,
+                    pk=pk,
+                    unique=unique,
+                    length=length,
+                    null=null,
+                    default=default,
+                    comment=comment,
+                )
+                fields.append(field)
+            tables.append(model + "\n".join(fields))
+        sys.stdout.write(result + "\n\n\n".join(tables))
--- a/aerich/migrate.py
+++ b/aerich/migrate.py
@@ -1,16 +1,18 @@
 import inspect
-import json
 import os
 import re
 from datetime import datetime
 from importlib import import_module
 from io import StringIO
+from pathlib import Path
+from types import ModuleType
 from typing import Dict, List, Optional, Tuple, Type

 import click
 from tortoise import (
    BackwardFKRelation,
    BackwardOneToOneRelation,
+    BaseDBAsyncClient,
    ForeignKeyFieldInstance,
    ManyToManyFieldInstance,
    Model,
@@ -21,7 +23,7 @@ from tortoise.fields import Field

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


 class Migrate:
@@ -42,15 +44,16 @@ class Migrate:
    app: str
    migrate_location: str
    dialect: str
+    _db_version: Optional[str] = None

    @classmethod
    def get_old_model_file(cls, app: str, location: str):
-        return os.path.join(location, app, cls.old_models + ".py")
+        return Path(location, app, cls.old_models + ".py")

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

@@ -65,15 +68,22 @@ class Migrate:
    def remove_old_model_file(cls, app: str, location: str):
        try:
            os.unlink(cls.get_old_model_file(app, location))
-        except FileNotFoundError:
+        except (OSError, FileNotFoundError):
            pass

+    @classmethod
+    async def _get_db_version(cls, connection: BaseDBAsyncClient):
+        if cls.dialect == "mysql":
+            sql = "select version() as version"
+            ret = await connection.execute_query(sql)
+            cls._db_version = ret[1][0].get("version")
+
    @classmethod
    async def init_with_old_models(cls, config: dict, app: str, location: str):
        await Tortoise.init(config=config)
        last_version = await cls.get_last_version()
        cls.app = app
-        cls.migrate_location = os.path.join(location, app)
+        cls.migrate_location = Path(location, app)
        if last_version:
            content = last_version.content
            with open(cls.get_old_model_file(app, location), "w", encoding="utf-8") as f:
@@ -97,6 +107,7 @@ class Migrate:
            from aerich.ddl.postgres import PostgresDDL

            cls.ddl = PostgresDDL(connection)
+        await cls._get_db_version(connection)

    @classmethod
    async def _get_last_version_num(cls):
@@ -111,8 +122,8 @@ class Migrate:
        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"
-        version = f"{last_version_num + 1}_{now}_{name}.json"
+            return f"0_{now}_init.sql"
+        version = f"{last_version_num + 1}_{now}_{name}.sql"
        if len(version) > MAX_VERSION_LENGTH:
            raise ValueError(f"Version name exceeds maximum length ({MAX_VERSION_LENGTH})")
        return version
@@ -123,13 +134,12 @@ class Migrate:
        # delete if same version exists
        for version_file in cls.get_all_version_files():
            if version_file.startswith(version.split("_")[0]):
-                os.unlink(os.path.join(cls.migrate_location, version_file))
+                os.unlink(Path(cls.migrate_location, version_file))
        content = {
            "upgrade": cls.upgrade_operators,
            "downgrade": cls.downgrade_operators,
        }
-        with open(os.path.join(cls.migrate_location, version), "w", encoding="utf-8") as f:
-            json.dump(content, f, indent=2, ensure_ascii=False)
+        write_version_file(Path(cls.migrate_location, version), content)
        return version

    @classmethod
@@ -182,8 +192,7 @@ class Migrate:
        :param location:
        :return:
        """
-        path = os.path.join(location, app, cls.old_models)
-        path = path.replace(os.sep, ".").lstrip(".")
+        path = Path(location, app, cls.old_models).as_posix().replace("/", ".")
        config["apps"][cls.diff_app] = {
            "models": [path],
            "default_connection": config.get("apps").get(app).get("default_connection", "default"),
@@ -202,7 +211,10 @@ class Migrate:
        old_model_files = []
        models = config.get("apps").get(app).get("models")
        for model in models:
-            module = import_module(model)
+            if isinstance(model, ModuleType):
+                module = model
+            else:
+                module = import_module(model)
            possible_models = [getattr(module, attr_name) for attr_name in dir(module)]
            for attr in filter(
                lambda x: inspect.isclass(x) and issubclass(x, Model) and x is not Model,
@@ -302,10 +314,20 @@ class Migrate:
                        else:
                            is_rename = diff_key in cls._rename_new
                        if is_rename:
-                            cls._add_operator(
-                                cls._rename_field(new_model, old_field, new_field),
-                                upgrade,
-                            )
+                            if (
+                                cls.dialect == "mysql"
+                                and cls._db_version
+                                and cls._db_version.startswith("5.")
+                            ):
+                                cls._add_operator(
+                                    cls._change_field(new_model, old_field, new_field),
+                                    upgrade,
+                                )
+                            else:
+                                cls._add_operator(
+                                    cls._rename_field(new_model, old_field, new_field),
+                                    upgrade,
+                                )
                            break
                else:
                    cls._add_operator(
@@ -327,7 +349,9 @@ class Migrate:
                            cls._add_operator(
                                cls._alter_null(new_model, new_field), upgrade=upgrade
                            )
-                        if new_field.default != old_field.default:
+                        if new_field.default != old_field.default and not callable(
+                            new_field.default
+                        ):
                            cls._add_operator(
                                cls._alter_default(new_model, new_field), upgrade=upgrade
                            )
@@ -489,6 +513,15 @@ class Migrate:
    def _rename_field(cls, model: Type[Model], old_field: Field, new_field: Field):
        return cls.ddl.rename_column(model, old_field.model_field_name, new_field.model_field_name)

+    @classmethod
+    def _change_field(cls, model: Type[Model], old_field: Field, new_field: Field):
+        return cls.ddl.change_column(
+            model,
+            old_field.model_field_name,
+            new_field.model_field_name,
+            new_field.get_for_dialect(cls.dialect, "SQL_TYPE"),
+        )
+
    @classmethod
    def _add_fk(cls, model: Type[Model], field: ForeignKeyFieldInstance):
        """
--- a/aerich/utils.py
+++ b/aerich/utils.py
@@ -1,17 +1,24 @@
 import importlib
+from typing import Dict

 from click import BadOptionUsage, Context
 from tortoise import BaseDBAsyncClient, Tortoise


-def get_app_connection_name(config, app) -> str:
+def get_app_connection_name(config, app_name: str) -> str:
    """
    get connection name
    :param config:
-    :param app:
+    :param app_name:
    :return:
    """
-    return config.get("apps").get(app).get("default_connection", "default")
+    app = config.get("apps").get(app_name)
+    if app:
+        return app.get("default_connection", "default")
+    raise BadOptionUsage(
+        option_name="--app",
+        message=f'Can\'t get app named "{app_name}"',
+    )


 def get_app_connection(config, app) -> BaseDBAsyncClient:
@@ -49,3 +56,55 @@ def get_tortoise_config(ctx: Context, tortoise_orm: str) -> dict:
            ctx=ctx,
        )
    return config
+
+
+_UPGRADE = "-- upgrade --\n"
+_DOWNGRADE = "-- downgrade --\n"
+
+
+def get_version_content_from_file(version_file: str) -> Dict:
+    """
+    get version content
+    :param version_file:
+    :return:
+    """
+    with open(version_file, "r", encoding="utf-8") as f:
+        content = f.read()
+        first = content.index(_UPGRADE)
+        try:
+            second = content.index(_DOWNGRADE)
+        except ValueError:
+            second = len(content) - 1
+        upgrade_content = content[first + len(_UPGRADE) : second].strip()  # noqa:E203
+        downgrade_content = content[second + len(_DOWNGRADE) :].strip()  # noqa:E203
+        ret = {
+            "upgrade": list(filter(lambda x: x or False, upgrade_content.split(";\n"))),
+            "downgrade": list(filter(lambda x: x or False, downgrade_content.split(";\n"))),
+        }
+        return ret
+
+
+def write_version_file(version_file: str, content: Dict):
+    """
+    write version file
+    :param version_file:
+    :param content:
+    :return:
+    """
+    with open(version_file, "w", encoding="utf-8") as f:
+        f.write(_UPGRADE)
+        upgrade = content.get("upgrade")
+        if len(upgrade) > 1:
+            f.write(";\n".join(upgrade) + ";\n")
+        else:
+            f.write(f"{upgrade[0]}")
+            if not upgrade[0].endswith(";"):
+                f.write(";")
+            f.write("\n")
+        downgrade = content.get("downgrade")
+        if downgrade:
+            f.write(_DOWNGRADE)
+            if len(downgrade) > 1:
+                f.write(";\n".join(downgrade) + ";\n")
+            else:
+                f.write(f"{downgrade[0]};\n")
--- a/conftest.py
+++ b/conftest.py
@@ -36,7 +36,7 @@ def reset_migrate():
    Migrate._downgrade_m2m = []


-@pytest.yield_fixture(scope="session")
+@pytest.fixture(scope="session")
 def event_loop():
    policy = asyncio.get_event_loop_policy()
    res = policy.new_event_loop()
@@ -67,5 +67,5 @@ async def initialize_tests(event_loop, request):
        Migrate.ddl = SqliteDDL(client)
    elif client.schema_generator is AsyncpgSchemaGenerator:
        Migrate.ddl = PostgresDDL(client)
-
+    Migrate.dialect = Migrate.ddl.DIALECT
    request.addfinalizer(lambda: event_loop.run_until_complete(Tortoise._drop_databases()))
--- a/poetry.lock
+++ b/poetry.lock
@@ -1,13 +1,13 @@
 [[package]]
 name = "aiomysql"
-version = "0.0.20"
+version = "0.0.21"
 description = "MySQL driver for asyncio."
 category = "main"
 optional = true
 python-versions = "*"

 [package.dependencies]
-PyMySQL = ">=0.9,<=0.9.2"
+PyMySQL = ">=0.9,<=0.9.3"

 [package.extras]
 sa = ["sqlalchemy (>=1.0)"]
@@ -76,16 +76,16 @@ tests_no_zope = ["coverage[toml] (>=5.0.2)", "hypothesis", "pympler", "pytest (>

 [[package]]
 name = "bandit"
-version = "1.6.2"
+version = "1.7.0"
 description = "Security oriented static analyser for python code."
 category = "dev"
 optional = false
-python-versions = "*"
+python-versions = ">=3.5"

 [package.dependencies]
 colorama = {version = ">=0.3.9", markers = "platform_system == \"Windows\""}
 GitPython = ">=1.0.1"
-PyYAML = ">=3.13"
+PyYAML = ">=5.3.1"
 six = ">=1.10.0"
 stevedore = ">=1.20.0"

@@ -111,17 +111,6 @@ typing-extensions = ">=3.7.4"
 colorama = ["colorama (>=0.4.3)"]
 d = ["aiohttp (>=3.3.2)", "aiohttp-cors"]

-[[package]]
-name = "cffi"
-version = "1.14.3"
-description = "Foreign Function Interface for Python calling C code."
-category = "main"
-optional = true
-python-versions = "*"
-
-[package.dependencies]
-pycparser = "*"
-
 [[package]]
 name = "click"
 version = "7.1.2"
@@ -139,23 +128,15 @@ optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"

 [[package]]
-name = "cryptography"
-version = "3.2.1"
-description = "cryptography is a package which provides cryptographic recipes and primitives to Python developers."
+name = "ddlparse"
+version = "1.9.0"
+description = "DDL parase and Convert to BigQuery JSON schema"
 category = "main"
-optional = true
-python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
+optional = false
+python-versions = "*"

 [package.dependencies]
-cffi = ">=1.8,<1.11.3 || >1.11.3"
-six = ">=1.4.1"
-
-[package.extras]
-docs = ["sphinx (>=1.6.5,!=1.8.0,!=3.1.0,!=3.1.1)", "sphinx-rtd-theme"]
-docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
-pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"]
-ssh = ["bcrypt (>=3.1.5)"]
-test = ["pytest (>=3.6.0,!=3.9.0,!=3.9.1,!=3.9.2)", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,!=3.79.2)"]
+pyparsing = "*"

 [[package]]
 name = "execnet"
@@ -209,18 +190,19 @@ gitdb = ">=4.0.1,<5"

 [[package]]
 name = "importlib-metadata"
-version = "2.0.0"
+version = "3.3.0"
 description = "Read metadata from Python packages"
 category = "dev"
 optional = false
-python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+python-versions = ">=3.6"

 [package.dependencies]
+typing-extensions = {version = ">=3.6.4", markers = "python_version < \"3.8\""}
 zipp = ">=0.5"

 [package.extras]
-docs = ["sphinx", "rst.linker"]
-testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
+docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=3.5,!=3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "jaraco.test (>=3.2.0)", "packaging", "pep517", "pyfakefs", "flufl.flake8", "pytest-black (>=0.3.7)", "pytest-mypy", "importlib-resources (>=1.3)"]

 [[package]]
 name = "iniconfig"
@@ -269,7 +251,7 @@ python-versions = "*"

 [[package]]
 name = "packaging"
-version = "20.4"
+version = "20.8"
 description = "Core utilities for Python packages"
 category = "dev"
 optional = false
@@ -277,7 +259,6 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"

 [package.dependencies]
 pyparsing = ">=2.0.2"
-six = "*"

 [[package]]
 name = "pathspec"
@@ -311,7 +292,7 @@ dev = ["pre-commit", "tox"]

 [[package]]
 name = "py"
-version = "1.9.0"
+version = "1.10.0"
 description = "library with cross-python path, ini-parsing, io, code, log facilities"
 category = "dev"
 optional = false
@@ -325,17 +306,9 @@ category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"

-[[package]]
-name = "pycparser"
-version = "2.20"
-description = "C parser in Python"
-category = "main"
-optional = true
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
 [[package]]
 name = "pydantic"
-version = "1.7.2"
+version = "1.7.3"
 description = "Data validation and settings management using python 3.6 type hinting"
 category = "main"
 optional = false
@@ -356,26 +329,26 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"

 [[package]]
 name = "pymysql"
-version = "0.9.2"
+version = "0.9.3"
 description = "Pure Python MySQL Driver"
 category = "main"
 optional = true
 python-versions = "*"

-[package.dependencies]
-cryptography = "*"
+[package.extras]
+rsa = ["cryptography"]

 [[package]]
 name = "pyparsing"
 version = "2.4.7"
 description = "Python parsing module"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"

 [[package]]
 name = "pypika"
-version = "0.44.0"
+version = "0.44.1"
 description = "A SQL query builder API for Python"
 category = "main"
 optional = false
@@ -383,25 +356,24 @@ python-versions = "*"

 [[package]]
 name = "pytest"
-version = "6.1.2"
+version = "6.2.1"
 description = "pytest: simple powerful testing with Python"
 category = "dev"
 optional = false
-python-versions = ">=3.5"
+python-versions = ">=3.6"

 [package.dependencies]
 atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
-attrs = ">=17.4.0"
+attrs = ">=19.2.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
 importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
-pluggy = ">=0.12,<1.0"
+pluggy = ">=0.12,<1.0.0a1"
 py = ">=1.8.2"
 toml = "*"

 [package.extras]
-checkqa_mypy = ["mypy (==0.780)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]

 [[package]]
@@ -432,7 +404,7 @@ pytest = ">=3.10"

 [[package]]
 name = "pytest-mock"
-version = "3.3.1"
+version = "3.4.0"
 description = "Thin-wrapper around the mock package for easier use with pytest"
 category = "dev"
 optional = false
@@ -446,7 +418,7 @@ dev = ["pre-commit", "tox", "pytest-asyncio"]

 [[package]]
 name = "pytest-xdist"
-version = "2.1.0"
+version = "2.2.0"
 description = "pytest xdist plugin for distributed testing and loop-on-failing modes"
 category = "dev"
 optional = false
@@ -461,6 +433,14 @@ pytest-forked = "*"
 psutil = ["psutil (>=3.0)"]
 testing = ["filelock"]

+[[package]]
+name = "pytz"
+version = "2020.4"
+description = "World timezone definitions, modern and historical"
+category = "main"
+optional = false
+python-versions = "*"
+
 [[package]]
 name = "pyyaml"
 version = "5.3.1"
@@ -471,7 +451,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"

 [[package]]
 name = "regex"
-version = "2020.10.28"
+version = "2020.11.13"
 description = "Alternative regular expression module, to replace re."
 category = "dev"
 optional = false
@@ -481,7 +461,7 @@ python-versions = "*"
 name = "six"
 version = "1.15.0"
 description = "Python 2 and 3 compatibility utilities"
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"

@@ -495,7 +475,7 @@ python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"

 [[package]]
 name = "stevedore"
-version = "3.2.2"
+version = "3.3.0"
 description = "Manage dynamic plugins for Python applications"
 category = "dev"
 optional = false
@@ -515,21 +495,23 @@ python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"

 [[package]]
 name = "tortoise-orm"
-version = "0.16.17"
+version = "0.16.18"
 description = "Easy async ORM for python, built with relations in mind"
 category = "main"
 optional = false
-python-versions = "*"
+python-versions = ">=3.7,<4.0"

 [package.dependencies]
-aerich = ">=0.3.2"
-aiosqlite = ">=0.11.0"
-iso8601 = ">=0.1.12"
-pypika = ">=0.39.0"
-typing-extensions = ">=3.7"
+aiosqlite = ">=0.16.0,<0.17.0"
+iso8601 = ">=0.1.13,<0.2.0"
+pypika = ">=0.44.0,<0.45.0"
+pytz = ">=2020.4,<2021.0"

 [package.extras]
-accel = ["python-rapidjson", "ciso8601 (>=2.1.2)", "uvloop (>=0.12.0)"]
+docs = ["pygments", "cloud-sptheme", "docutils", "sphinx"]
+aiomysql = ["aiomysql"]
+asyncpg = ["asyncpg"]
+accel = ["ciso8601 (>=2.1.2,<3.0.0)", "python-rapidjson", "uvloop (>=0.12.0,<0.13.0)"]

 [[package]]
 name = "typed-ast"
@@ -565,12 +547,12 @@ dbdrivers = ["aiomysql", "asyncpg"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "fb4af0739735ad1230da97320edab72d41278ffa78005116f8119705b998aa10"
+content-hash = "9adf7beba99d615c71a9148391386c9016cbafc7c11c5fc3ad81c8ec61026236"

 [metadata.files]
 aiomysql = [
-    {file = "aiomysql-0.0.20-py3-none-any.whl", hash = "sha256:5fd798481f16625b424eec765c56d712ac78a51f3bd0175a3de94107aae43307"},
-    {file = "aiomysql-0.0.20.tar.gz", hash = "sha256:d89ce25d44dadb43cf2d9e4603bd67b7a0ad12d5e67208de013629ba648df2ba"},
+    {file = "aiomysql-0.0.21-py3-none-any.whl", hash = "sha256:a81a97da3dd732635926a8ea6adbbf2d1345799680bf61b5f89e730bcec88cc5"},
+    {file = "aiomysql-0.0.21.tar.gz", hash = "sha256:811569c0db118dd2685f0878f5cebf17a11e89a995fa14261d5fa0254113842c"},
 ]
 aiosqlite = [
    {file = "aiosqlite-0.16.0-py3-none-any.whl", hash = "sha256:0e5b8465b0b6aa7f2b0a1fa7f3af53216fcea1947f524b658bd4b4696e72f1b7"},
@@ -620,50 +602,12 @@ attrs = [
    {file = "attrs-20.3.0.tar.gz", hash = "sha256:832aa3cde19744e49938b91fea06d69ecb9e649c93ba974535d08ad92164f700"},
 ]
 bandit = [
-    {file = "bandit-1.6.2-py2.py3-none-any.whl", hash = "sha256:336620e220cf2d3115877685e264477ff9d9abaeb0afe3dc7264f55fa17a3952"},
-    {file = "bandit-1.6.2.tar.gz", hash = "sha256:41e75315853507aa145d62a78a2a6c5e3240fe14ee7c601459d0df9418196065"},
+    {file = "bandit-1.7.0-py3-none-any.whl", hash = "sha256:216be4d044209fa06cf2a3e51b319769a51be8318140659719aa7a115c35ed07"},
+    {file = "bandit-1.7.0.tar.gz", hash = "sha256:8a4c7415254d75df8ff3c3b15cfe9042ecee628a1e40b44c15a98890fbfc2608"},
 ]
 black = [
    {file = "black-20.8b1.tar.gz", hash = "sha256:1c02557aa099101b9d21496f8a914e9ed2222ef70336404eeeac8edba836fbea"},
 ]
-cffi = [
-    {file = "cffi-1.14.3-2-cp27-cp27m-macosx_10_9_x86_64.whl", hash = "sha256:3eeeb0405fd145e714f7633a5173318bd88d8bbfc3dd0a5751f8c4f70ae629bc"},
-    {file = "cffi-1.14.3-2-cp35-cp35m-macosx_10_9_x86_64.whl", hash = "sha256:cb763ceceae04803adcc4e2d80d611ef201c73da32d8f2722e9d0ab0c7f10768"},
-    {file = "cffi-1.14.3-2-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:44f60519595eaca110f248e5017363d751b12782a6f2bd6a7041cba275215f5d"},
-    {file = "cffi-1.14.3-2-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:c53af463f4a40de78c58b8b2710ade243c81cbca641e34debf3396a9640d6ec1"},
-    {file = "cffi-1.14.3-2-cp38-cp38-macosx_10_9_x86_64.whl", hash = "sha256:33c6cdc071ba5cd6d96769c8969a0531be2d08c2628a0143a10a7dcffa9719ca"},
-    {file = "cffi-1.14.3-2-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:c11579638288e53fc94ad60022ff1b67865363e730ee41ad5e6f0a17188b327a"},
-    {file = "cffi-1.14.3-cp27-cp27m-manylinux1_i686.whl", hash = "sha256:3cb3e1b9ec43256c4e0f8d2837267a70b0e1ca8c4f456685508ae6106b1f504c"},
-    {file = "cffi-1.14.3-cp27-cp27m-manylinux1_x86_64.whl", hash = "sha256:f0620511387790860b249b9241c2f13c3a80e21a73e0b861a2df24e9d6f56730"},
-    {file = "cffi-1.14.3-cp27-cp27m-win32.whl", hash = "sha256:005f2bfe11b6745d726dbb07ace4d53f057de66e336ff92d61b8c7e9c8f4777d"},
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+    {file = "regex-2020.11.13-cp38-cp38-manylinux2014_i686.whl", hash = "sha256:c084582d4215593f2f1d28b65d2a2f3aceff8342aa85afd7be23a9cad74a0de5"},
+    {file = "regex-2020.11.13-cp38-cp38-manylinux2014_x86_64.whl", hash = "sha256:a3d748383762e56337c39ab35c6ed4deb88df5326f97a38946ddd19028ecce6b"},
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+    {file = "regex-2020.11.13-cp38-cp38-win_amd64.whl", hash = "sha256:6c54ce4b5d61a7129bad5c5dc279e222afd00e721bf92f9ef09e4fae28755683"},
+    {file = "regex-2020.11.13-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:1862a9d9194fae76a7aaf0150d5f2a8ec1da89e8b55890b1786b8f88a0f619dc"},
+    {file = "regex-2020.11.13-cp39-cp39-manylinux1_i686.whl", hash = "sha256:4902e6aa086cbb224241adbc2f06235927d5cdacffb2425c73e6570e8d862364"},
+    {file = "regex-2020.11.13-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:7a25fcbeae08f96a754b45bdc050e1fb94b95cab046bf56b016c25e9ab127b3e"},
+    {file = "regex-2020.11.13-cp39-cp39-manylinux2010_i686.whl", hash = "sha256:d2d8ce12b7c12c87e41123997ebaf1a5767a5be3ec545f64675388970f415e2e"},
+    {file = "regex-2020.11.13-cp39-cp39-manylinux2010_x86_64.whl", hash = "sha256:f7d29a6fc4760300f86ae329e3b6ca28ea9c20823df123a2ea8693e967b29917"},
+    {file = "regex-2020.11.13-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:717881211f46de3ab130b58ec0908267961fadc06e44f974466d1887f865bd5b"},
+    {file = "regex-2020.11.13-cp39-cp39-manylinux2014_i686.whl", hash = "sha256:3128e30d83f2e70b0bed9b2a34e92707d0877e460b402faca908c6667092ada9"},
+    {file = "regex-2020.11.13-cp39-cp39-manylinux2014_x86_64.whl", hash = "sha256:8f6a2229e8ad946e36815f2a03386bb8353d4bde368fdf8ca5f0cb97264d3b5c"},
+    {file = "regex-2020.11.13-cp39-cp39-win32.whl", hash = "sha256:f8f295db00ef5f8bae530fc39af0b40486ca6068733fb860b42115052206466f"},
+    {file = "regex-2020.11.13-cp39-cp39-win_amd64.whl", hash = "sha256:a15f64ae3a027b64496a71ab1f722355e570c3fac5ba2801cafce846bf5af01d"},
+    {file = "regex-2020.11.13.tar.gz", hash = "sha256:83d6b356e116ca119db8e7c6fc2983289d87b27b3fac238cfe5dca529d884562"},
 ]
 six = [
    {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},
@@ -875,15 +815,16 @@ smmap = [
    {file = "smmap-3.0.4.tar.gz", hash = "sha256:9c98bbd1f9786d22f14b3d4126894d56befb835ec90cef151af566c7e19b5d24"},
 ]
 stevedore = [
-    {file = "stevedore-3.2.2-py3-none-any.whl", hash = "sha256:5e1ab03eaae06ef6ce23859402de785f08d97780ed774948ef16c4652c41bc62"},
-    {file = "stevedore-3.2.2.tar.gz", hash = "sha256:f845868b3a3a77a2489d226568abe7328b5c2d4f6a011cc759dfa99144a521f0"},
+    {file = "stevedore-3.3.0-py3-none-any.whl", hash = "sha256:50d7b78fbaf0d04cd62411188fa7eedcb03eb7f4c4b37005615ceebe582aa82a"},
+    {file = "stevedore-3.3.0.tar.gz", hash = "sha256:3a5bbd0652bf552748871eaa73a4a8dc2899786bc497a2aa1fcb4dcdb0debeee"},
 ]
 toml = [
    {file = "toml-0.10.2-py2.py3-none-any.whl", hash = "sha256:806143ae5bfb6a3c6e736a764057db0e6a0e05e338b5630894a5f779cabb4f9b"},
    {file = "toml-0.10.2.tar.gz", hash = "sha256:b3bda1d108d5dd99f4a20d24d9c348e91c4db7ab1b749200bded2f839ccbe68f"},
 ]
 tortoise-orm = [
-    {file = "tortoise-orm-0.16.17.tar.gz", hash = "sha256:bcb978d302ba1d71ee2089352ca07b3ed73fd55936b5d580e29ffed5a0784c03"},
+    {file = "tortoise-orm-0.16.18.tar.gz", hash = "sha256:0ef2a469be28f1d29729e666daa40de40fa0123dace3e40de8cded52e9013e2a"},
+    {file = "tortoise_orm-0.16.18-py3-none-any.whl", hash = "sha256:980935889dc275910eb53ea38f2895cec5e727068bf701870da5b13060fa13ad"},
 ]
 typed-ast = [
    {file = "typed_ast-1.4.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3"},
@@ -893,19 +834,28 @@ typed-ast = [
    {file = "typed_ast-1.4.1-cp36-cp36m-macosx_10_9_x86_64.whl", hash = "sha256:269151951236b0f9a6f04015a9004084a5ab0d5f19b57de779f908621e7d8b75"},
    {file = "typed_ast-1.4.1-cp36-cp36m-manylinux1_i686.whl", hash = "sha256:24995c843eb0ad11a4527b026b4dde3da70e1f2d8806c99b7b4a7cf491612652"},
    {file = "typed_ast-1.4.1-cp36-cp36m-manylinux1_x86_64.whl", hash = "sha256:fe460b922ec15dd205595c9b5b99e2f056fd98ae8f9f56b888e7a17dc2b757e7"},
+    {file = "typed_ast-1.4.1-cp36-cp36m-manylinux2014_aarch64.whl", hash = "sha256:fcf135e17cc74dbfbc05894ebca928ffeb23d9790b3167a674921db19082401f"},
    {file = "typed_ast-1.4.1-cp36-cp36m-win32.whl", hash = "sha256:4e3e5da80ccbebfff202a67bf900d081906c358ccc3d5e3c8aea42fdfdfd51c1"},
    {file = "typed_ast-1.4.1-cp36-cp36m-win_amd64.whl", hash = "sha256:249862707802d40f7f29f6e1aad8d84b5aa9e44552d2cc17384b209f091276aa"},
    {file = "typed_ast-1.4.1-cp37-cp37m-macosx_10_9_x86_64.whl", hash = "sha256:8ce678dbaf790dbdb3eba24056d5364fb45944f33553dd5869b7580cdbb83614"},
    {file = "typed_ast-1.4.1-cp37-cp37m-manylinux1_i686.whl", hash = "sha256:c9e348e02e4d2b4a8b2eedb48210430658df6951fa484e59de33ff773fbd4b41"},
    {file = "typed_ast-1.4.1-cp37-cp37m-manylinux1_x86_64.whl", hash = "sha256:bcd3b13b56ea479b3650b82cabd6b5343a625b0ced5429e4ccad28a8973f301b"},
+    {file = "typed_ast-1.4.1-cp37-cp37m-manylinux2014_aarch64.whl", hash = "sha256:f208eb7aff048f6bea9586e61af041ddf7f9ade7caed625742af423f6bae3298"},
    {file = "typed_ast-1.4.1-cp37-cp37m-win32.whl", hash = "sha256:d5d33e9e7af3b34a40dc05f498939f0ebf187f07c385fd58d591c533ad8562fe"},
    {file = "typed_ast-1.4.1-cp37-cp37m-win_amd64.whl", hash = "sha256:0666aa36131496aed8f7be0410ff974562ab7eeac11ef351def9ea6fa28f6355"},
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    {file = "typed_ast-1.4.1-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:498b0f36cc7054c1fead3d7fc59d2150f4d5c6c56ba7fb150c013fbc683a8d2d"},
+    {file = "typed_ast-1.4.1-cp38-cp38-manylinux2014_aarch64.whl", hash = "sha256:7e4c9d7658aaa1fc80018593abdf8598bf91325af6af5cce4ce7c73bc45ea53d"},
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    {file = "typed_ast-1.4.1-cp38-cp38-win_amd64.whl", hash = "sha256:fc0fea399acb12edbf8a628ba8d2312f583bdbdb3335635db062fa98cf71fca4"},
    {file = "typed_ast-1.4.1-cp39-cp39-macosx_10_15_x86_64.whl", hash = "sha256:d43943ef777f9a1c42bf4e552ba23ac77a6351de620aa9acf64ad54933ad4d34"},
+    {file = "typed_ast-1.4.1-cp39-cp39-macosx_10_9_x86_64.whl", hash = "sha256:92c325624e304ebf0e025d1224b77dd4e6393f18aab8d829b5b7e04afe9b7a2c"},
+    {file = "typed_ast-1.4.1-cp39-cp39-manylinux1_i686.whl", hash = "sha256:d648b8e3bf2fe648745c8ffcee3db3ff903d0817a01a12dd6a6ea7a8f4889072"},
+    {file = "typed_ast-1.4.1-cp39-cp39-manylinux1_x86_64.whl", hash = "sha256:fac11badff8313e23717f3dada86a15389d0708275bddf766cca67a84ead3e91"},
+    {file = "typed_ast-1.4.1-cp39-cp39-manylinux2014_aarch64.whl", hash = "sha256:0d8110d78a5736e16e26213114a38ca35cb15b6515d535413b090bd50951556d"},
+    {file = "typed_ast-1.4.1-cp39-cp39-win32.whl", hash = "sha256:b52ccf7cfe4ce2a1064b18594381bccf4179c2ecf7f513134ec2f993dd4ab395"},
+    {file = "typed_ast-1.4.1-cp39-cp39-win_amd64.whl", hash = "sha256:3742b32cf1c6ef124d57f95be609c473d7ec4c14d0090e5a5e05a15269fb4d0c"},
    {file = "typed_ast-1.4.1.tar.gz", hash = "sha256:8c8aaad94455178e3187ab22c8b01a3837f8ee50e09cf31f1ba129eb293ec30b"},
 ]
 typing-extensions = [
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aerich"
-version = "0.3.3"
+version = "0.4.4"
 description = "A database migrations tool for Tortoise ORM."
 authors = ["long2ice <long2ice@gmail.com>"]
 license = "Apache-2.0"
@@ -21,11 +21,12 @@ click = "*"
 pydantic = "*"
 aiomysql = {version = "*", optional = true}
 asyncpg = {version = "*", optional = true}
+ddlparse = "*"

 [tool.poetry.dev-dependencies]
 flake8 = "*"
 isort = "*"
-black = "*"
+black = "^20.8b1"
 pytest = "*"
 pytest-xdist = "*"
 pytest-asyncio = "*"
--- a/tests/test_ddl.py
+++ b/tests/test_ddl.py
@@ -42,7 +42,7 @@ def test_create_table():
    "id" SERIAL NOT NULL PRIMARY KEY,
    "slug" VARCHAR(200) NOT NULL,
    "name" VARCHAR(200) NOT NULL,
-    "created_at" TIMESTAMP NOT NULL  DEFAULT CURRENT_TIMESTAMP,
+    "created_at" TIMESTAMPTZ NOT NULL  DEFAULT CURRENT_TIMESTAMP,
    "user_id" INT NOT NULL REFERENCES "user" ("id") ON DELETE CASCADE
 );
 COMMENT ON COLUMN "category"."user_id" IS 'User';"""
--- a/tests/test_migrate.py
+++ b/tests/test_migrate.py
@@ -62,18 +62,18 @@ def test_sort_all_version_files(mocker):
    mocker.patch(
        "os.listdir",
        return_value=[
-            "1_datetime_update.json",
-            "11_datetime_update.json",
-            "10_datetime_update.json",
-            "2_datetime_update.json",
+            "1_datetime_update.sql",
+            "11_datetime_update.sql",
+            "10_datetime_update.sql",
+            "2_datetime_update.sql",
        ],
    )

    Migrate.migrate_location = "."

    assert Migrate.get_all_version_files() == [
-        "1_datetime_update.json",
-        "2_datetime_update.json",
-        "10_datetime_update.json",
-        "11_datetime_update.json",
+        "1_datetime_update.sql",
+        "2_datetime_update.sql",
+        "10_datetime_update.sql",
+        "11_datetime_update.sql",
    ]
Author	SHA1	Message	Date
long2ice	cd176c1fd6	Merge pull request #111 from lqmanh/bugfixes/fix-tortoise-orm-0.16.19 Fix Aerich b/c of a new feature in Tortoise ORM v0.16.19	2021-01-04 14:59:11 +08:00
long2ice	c2819fc8dc	update CHANGELOG.md	2020-12-29 19:13:37 +08:00
long2ice	530e7cfce5	Fixed unnecessary import. (#113 )	2020-12-29 19:12:36 +08:00
Lương Quang Mạnh	47824a100b	Fix Aerich b/c of Tortoise ORM v0.16.19	2020-12-26 10:31:10 +07:00
long2ice	78a15f9f19	Merge pull request #108 from lqmanh/features/make-parent-dirs-as-needed Make parent directories as needed	2020-12-25 22:10:56 +08:00
long2ice	5ae8b9e85f	complete InspectDb	2020-12-25 21:44:26 +08:00
long2ice	55a6d4bbc7	add InspectDb and show_create_tables	2020-12-24 23:32:58 +08:00
long2ice	c5535f16e1	TODO: Add `inspectdb` command	2020-12-23 23:38:45 +08:00
long2ice	840cd71e44	Replace migrations separator to sql standard comment	2020-12-23 23:30:35 +08:00
Lương Quang Mạnh	e0d52b1210	Fix make style	2020-12-21 15:36:29 +07:00
Lương Quang Mạnh	4dc45f723a	Make parent directories as needed	2020-12-21 15:13:26 +07:00
long2ice	d2e0a68351	Fix packaging error. (#92 )	2020-12-02 23:03:15 +08:00
long2ice	ee6cc20c7d	Fix empty items	2020-11-30 11:14:09 +08:00
long2ice	4e917495a0	Fix upgrade in new db. (#96 )	2020-11-30 11:02:48 +08:00
long2ice	bfa66f6dd4	update changelog	2020-11-29 11:15:43 +08:00
long2ice	f00715d4c4	Merge pull request #97 from TrDex/pathlib-for-path-resolving Use `pathlib` for path resolving	2020-11-29 11:02:44 +08:00
Mykola Solodukha	6e3105690a	Use `pathlib` for path resolving	2020-11-28 19:23:34 +02:00
long2ice	c707f7ecb2	bug fix	2020-11-28 14:31:41 +08:00
long2ice	0bbc471e00	Fix `sqlite` stuck. (#90 )	2020-11-26 23:38:57 +08:00
long2ice	fb6cc62047	update README and CHANGELOG	2020-11-23 16:44:16 +08:00
long2ice	e9ceaf471f	Merge pull request #87 from ALexALed/remove-default-detections-for-callable Remove callable detection for defaults	2020-11-23 16:41:30 +08:00
alexaled	85fc3b2aa2	Remove callable detection for defaults	2020-11-23 10:35:40 +02:00
long2ice	a677d506a9	Fix ci error	2020-11-19 10:41:52 +08:00
long2ice	9879004fee	Add `rename` column support MySQL5	2020-11-19 10:11:52 +08:00
long2ice	5760fe2040	Merge pull request #83 from SakuraSound/fix-migrate-unlink Catch OSError (if read-only file system)	2020-11-18 15:40:29 +08:00
Joir-dan Gumbs	b229c30558	Catch OSError (if read-only file system)	2020-11-17 23:28:00 -08:00
long2ice	5d2f1604c3	update github action poetry	2020-11-17 10:57:56 +08:00
long2ice	499c4e1c02	Fix black	2020-11-17 10:50:57 +08:00
long2ice	1463ee30bc	update deps	2020-11-17 10:43:27 +08:00
long2ice	3b801932f5	Merge remote-tracking branch 'origin/dev' into dev	2020-11-17 10:36:14 +08:00
long2ice	c2eb4dc9e3	update poetry in github actions	2020-11-17 10:35:51 +08:00
long2ice	5927febd0c	Delete .DS_Store	2020-11-17 10:10:32 +08:00
long2ice	a1c10ff330	exclude .DS_store	2020-11-17 10:09:37 +08:00
long2ice	f2013c931a	Fix test error	2020-11-16 22:32:19 +08:00
long2ice	b21b954d32	Use `.sql` instead of `.json` to store version file. (#79 )	2020-11-16 22:25:01 +08:00
long2ice	f5588a35c5	update deps	2020-11-12 21:27:58 +08:00