add ? when ask rename

fix event loop error
update README.md
2020-09-28 17:22:05 +08:00 · 2020-09-28 17:16:35 +08:00 · 2020-09-28 12:50:43 +08:00 · 2020-09-28 10:40:04 +08:00 · 2020-09-27 14:18:19 +08:00 · 2020-09-25 18:27:08 +08:00
21 changed files with 629 additions and 388 deletions
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,66 +1,85 @@
-=========
-ChangeLog
-=========
-0.2
-===
+# ChangeLog
+
+## 0.2
+
+### 0.2.5
+
+- Fix windows support. (#46)
+- Support `db_constraint` in fk, m2m should manual define table with fk. (#52)
+
+### 0.2.4
+
+- Raise error with SQLite unsupported features.
+- Fix Postgres alter table. (#48)
+- Add `Rename` support.
+
+### 0.2.3
+
+- Fix tortoise ssl config.
+- PostgreSQL add/drop index/unique.
+
+### 0.2.2
+
+- Fix postgres drop fk.
+- Fix version sort.
+
+### 0.2.1

-0.2.1
-----
 - Fix bug in windows.
 - Enhance PostgreSQL support.

-0.2.0
-----
- Update model file find method.
- Set ``--safe`` bool.
+### 0.2.0
+
+- Update model file find method.
+- Set `--safe` bool.
+
+## 0.1
+
+### 0.1.9

-0.1
-===
-0.1.9
-----
 - Fix default_connection when upgrade
 - Find default app instead of default.
 - Diff MySQL ddl.
 - Check tortoise config.

-0.1.8
-----
+### 0.1.8
+
 - Fix upgrade error when migrate.
 - Fix init db sql error.
 - Support change column.

-0.1.7
-----
+### 0.1.7
+
 - Exclude models.Aerich.
 - Add init record when init-db.
 - Fix version num str.

-0.1.6
-----
+### 0.1.6
+
 - update dependency_links

-0.1.5
-----
+### 0.1.5
+
 - Add sqlite and postgres support.
 - Fix dependency import.
 - Store versions in db.

-0.1.4
-----
+### 0.1.4
+
 - Fix transaction and fields import.
 - Make unique index worked.
 - Add cli --version.

-0.1.3
-----
+### 0.1.3
+
 - Support indexes and unique_together.

-0.1.2
-----
+### 0.1.2
+
 - Now aerich support m2m.
 - Add cli cmd init-db.
 - Change cli options.

-0.1.1
-----
+### 0.1.1
+
 - Now aerich is basic worked.
--- a/7
+++ b/7
@@ -40,17 +40,14 @@ test_sqlite:
 	$(py_warn) TEST_DB=sqlite://:memory: py.test

 test_mysql:
-	$(py_warn) TEST_DB="mysql://root:$(MYSQL_PASS)@$(MYSQL_HOST):$(MYSQL_PORT)/test_\{\}" py.test
+	$(py_warn) TEST_DB="mysql://root:$(MYSQL_PASS)@$(MYSQL_HOST):$(MYSQL_PORT)/test_\{\}" pytest -vv -s

 test_postgres:
-	$(py_warn) TEST_DB="postgres://postgres:$(POSTGRES_PASS)@$(POSTGRES_HOST):$(POSTGRES_PORT)/test_\{\}" py.test
+	$(py_warn) TEST_DB="postgres://postgres:$(POSTGRES_PASS)@$(POSTGRES_HOST):$(POSTGRES_PORT)/test_\{\}" pytest

 testall: deps test_sqlite test_postgres test_mysql

 build: deps
 	@poetry build

-publish: deps
-	@poetry publish --build
-
 ci: check testall
--- a/README.md
+++ b/README.md
@@ -97,14 +97,8 @@ 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

@@ -115,7 +109,11 @@ Success migrate 1_202029051520102929_drop_column.json
 ```

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

 ### Upgrade to latest version

@@ -153,28 +151,14 @@ $ 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.
+| AliPay                                                                                 | WeChatPay                                                                                 | PayPal                                                           |
+| -------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------- | ---------------------------------------------------------------- |
+| <img width="200" src="https://github.com/long2ice/aerich/raw/dev/images/alipay.jpeg"/> | <img width="200" src="https://github.com/long2ice/aerich/raw/dev/images/wechatpay.jpeg"/> | [PayPal](https://www.paypal.me/long2ice) to my account long2ice. |

 ## License

--- a/aerich/init.py
+++ b/aerich/init.py
@@ -1 +1 @@
-__version__ = "0.2.1"
+__version__ = "0.2.5"
--- a/aerich/cli.py
+++ b/aerich/cli.py
@@ -1,11 +1,12 @@
+import asyncio
 import json
 import os
 import sys
 from configparser import ConfigParser
-from enum import Enum
+from functools import wraps

-import asyncclick as click
-from asyncclick import Context, UsageError
+import click
+from click import Context, UsageError
 from tortoise import Tortoise, generate_schema_for_client
 from tortoise.exceptions import OperationalError
 from tortoise.transactions import in_transaction
@@ -15,18 +16,21 @@ from aerich.migrate import Migrate
 from aerich.utils import get_app_connection, get_app_connection_name, get_tortoise_config

 from . import __version__
+from .enums import Color
 from .models import Aerich

-
-class Color(str, Enum):
-    green = "green"
-    red = "red"
-    yellow = "yellow"
-
-
 parser = ConfigParser()


+def coro(f):
+    @wraps(f)
+    def wrapper(*args, **kwargs):
+        loop = asyncio.get_event_loop()
+        return loop.run_until_complete(f(*args, **kwargs))
+
+    return wrapper
+
+
@click.group(context_settings={"help_option_names": ["-h", "--help"]})
@click.version_option(__version__, "-V", "--version")
@click.option(
@@ -41,6 +45,7 @@ parser = ConfigParser()
    help="Name of section in .ini file to use for aerich config.",
 )
@click.pass_context
+@coro
 async def cli(ctx: Context, config, app, name):
    ctx.ensure_object(dict)
    ctx.obj["config_file"] = config
@@ -70,11 +75,11 @@ 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
+@coro
 async def migrate(ctx: Context, name):
    config = ctx.obj["config"]
    location = ctx.obj["location"]
    app = ctx.obj["app"]
-
    ret = await Migrate.migrate(name)
    if not ret:
        return click.secho("No changes detected", fg=Color.yellow)
@@ -84,6 +89,7 @@ async def migrate(ctx: Context, name):

@cli.command(help="Upgrade to latest version.")
@click.pass_context
+@coro
 async def upgrade(ctx: Context):
    config = ctx.obj["config"]
    app = ctx.obj["app"]
@@ -110,6 +116,7 @@ async def upgrade(ctx: Context):

@cli.command(help="Downgrade to previous version.")
@click.pass_context
+@coro
 async def downgrade(ctx: Context):
    app = ctx.obj["app"]
    config = ctx.obj["config"]
@@ -132,6 +139,7 @@ async def downgrade(ctx: Context):

@cli.command(help="Show current available heads in migrate location.")
@click.pass_context
+@coro
 async def heads(ctx: Context):
    app = ctx.obj["app"]
    versions = Migrate.get_all_version_files()
@@ -146,7 +154,8 @@ async def heads(ctx: Context):

@cli.command(help="List all migrate items.")
@click.pass_context
-def history(ctx):
+@coro
+async def history(ctx: Context):
    versions = Migrate.get_all_version_files()
    for version in versions:
        click.secho(version, fg=Color.green)
@@ -165,6 +174,7 @@ def history(ctx):
    "--location", default="./migrations", show_default=True, help="Migrate store location."
 )
@click.pass_context
+@coro
 async def init(
    ctx: Context, tortoise_orm, location,
 ):
@@ -196,6 +206,7 @@ async def init(
    show_default=True,
 )
@click.pass_context
+@coro
 async def init_db(ctx: Context, safe):
    config = ctx.obj["config"]
    location = ctx.obj["location"]
@@ -228,4 +239,4 @@ async def init_db(ctx: Context, safe):

 def main():
    sys.path.insert(0, ".")
-    cli(_anyio_backend="asyncio")
+    cli()
--- a/aerich/ddl/init.py
+++ b/aerich/ddl/init.py
@@ -2,7 +2,7 @@ from typing import List, Type

 from tortoise import BaseDBAsyncClient, ForeignKeyFieldInstance, ManyToManyFieldInstance, Model
 from tortoise.backends.base.schema_generator import BaseSchemaGenerator
-from tortoise.fields import Field, JSONField, TextField, UUIDField
+from tortoise.fields import CASCADE, Field, JSONField, TextField, UUIDField


 class BaseDDL:
@@ -11,13 +11,16 @@ class BaseDDL:
    _DROP_TABLE_TEMPLATE = 'DROP TABLE IF EXISTS "{table_name}"'
    _ADD_COLUMN_TEMPLATE = 'ALTER TABLE "{table_name}" ADD {column}'
    _DROP_COLUMN_TEMPLATE = 'ALTER TABLE "{table_name}" DROP COLUMN "{column_name}"'
+    _RENAME_COLUMN_TEMPLATE = (
+        'ALTER TABLE "{table_name}" RENAME COLUMN "{old_column_name}" TO "{new_column_name}"'
+    )
    _ADD_INDEX_TEMPLATE = (
        'ALTER TABLE "{table_name}" ADD {unique} INDEX "{index_name}" ({column_names})'
    )
    _DROP_INDEX_TEMPLATE = 'ALTER TABLE "{table_name}" DROP INDEX "{index_name}"'
    _ADD_FK_TEMPLATE = 'ALTER TABLE "{table_name}" ADD CONSTRAINT "{fk_name}" FOREIGN KEY ("{db_column}") REFERENCES "{table}" ("{field}") ON DELETE {on_delete}'
    _DROP_FK_TEMPLATE = 'ALTER TABLE "{table_name}" DROP FOREIGN KEY "{fk_name}"'
-    _M2M_TABLE_TEMPLATE = 'CREATE TABLE "{table_name}" ("{backward_key}" {backward_type} NOT NULL REFERENCES "{backward_table}" ("{backward_field}") ON DELETE CASCADE,"{forward_key}" {forward_type} NOT NULL REFERENCES "{forward_table}" ("{forward_field}") ON DELETE CASCADE){extra}{comment};'
+    _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}'

    def __init__(self, client: "BaseDBAsyncClient"):
@@ -41,6 +44,7 @@ class BaseDDL:
            backward_type=model._meta.pk.get_for_dialect(self.DIALECT, "SQL_TYPE"),
            forward_key=field.forward_key,
            forward_type=field.related_model._meta.pk.get_for_dialect(self.DIALECT, "SQL_TYPE"),
+            on_delete=CASCADE,
            extra=self.schema_generator._table_generate_extra(table=field.through),
            comment=self.schema_generator._table_comment_generator(
                table=field.through, comment=field.description
@@ -125,6 +129,13 @@ class BaseDDL:
            ),
        )

+    def rename_column(self, model: "Type[Model]", old_column_name: str, new_column_name: str):
+        return self._RENAME_COLUMN_TEMPLATE.format(
+            table_name=model._meta.db_table,
+            old_column_name=old_column_name,
+            new_column_name=new_column_name,
+        )
+
    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/ddl/mysql/init.py
+++ b/aerich/ddl/mysql/init.py
@@ -9,6 +9,9 @@ class MysqlDDL(BaseDDL):
    _DROP_TABLE_TEMPLATE = "DROP TABLE IF EXISTS `{table_name}`"
    _ADD_COLUMN_TEMPLATE = "ALTER TABLE `{table_name}` ADD {column}"
    _DROP_COLUMN_TEMPLATE = "ALTER TABLE `{table_name}` DROP COLUMN `{column_name}`"
+    _RENAME_COLUMN_TEMPLATE = (
+        "ALTER TABLE `{table_name}` RENAME COLUMN `{old_column_name}` TO `{new_column_name}`"
+    )
    _ADD_INDEX_TEMPLATE = (
        "ALTER TABLE `{table_name}` ADD {unique} INDEX `{index_name}` ({column_names})"
    )
--- a/aerich/ddl/postgres/init.py
+++ b/aerich/ddl/postgres/init.py
@@ -1,4 +1,4 @@
-from typing import Type
+from typing import List, Type

 from tortoise import Model
 from tortoise.backends.asyncpg.schema_generator import AsyncpgSchemaGenerator
@@ -10,10 +10,17 @@ from aerich.ddl import BaseDDL
 class PostgresDDL(BaseDDL):
    schema_generator_cls = AsyncpgSchemaGenerator
    DIALECT = AsyncpgSchemaGenerator.DIALECT
+    _ADD_INDEX_TEMPLATE = 'CREATE INDEX "{index_name}" ON "{table_name}" ({column_names})'
+    _ADD_UNIQUE_TEMPLATE = (
+        'ALTER TABLE "{table_name}" ADD CONSTRAINT "{index_name}" UNIQUE ({column_names})'
+    )
+    _DROP_INDEX_TEMPLATE = 'DROP INDEX "{index_name}"'
+    _DROP_UNIQUE_TEMPLATE = 'ALTER TABLE "{table_name}" DROP CONSTRAINT "{index_name}"'
    _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
@@ -40,6 +47,25 @@ class PostgresDDL(BaseDDL):
            datatype=field_object.get_for_dialect(self.DIALECT, "SQL_TYPE"),
        )

+    def add_index(self, model: "Type[Model]", field_names: List[str], unique=False):
+        template = self._ADD_UNIQUE_TEMPLATE if unique else self._ADD_INDEX_TEMPLATE
+        return template.format(
+            index_name=self.schema_generator._generate_index_name(
+                "uid" if unique else "idx", model, field_names
+            ),
+            table_name=model._meta.db_table,
+            column_names=", ".join([self.schema_generator.quote(f) for f in field_names]),
+        )
+
+    def drop_index(self, model: "Type[Model]", field_names: List[str], unique=False):
+        template = self._DROP_UNIQUE_TEMPLATE if unique else self._DROP_INDEX_TEMPLATE
+        return template.format(
+            index_name=self.schema_generator._generate_index_name(
+                "uid" if unique else "idx", model, field_names
+            ),
+            table_name=model._meta.db_table,
+        )
+
    def set_comment(self, model: "Type[Model]", field_object: Field):
        db_table = model._meta.db_table
        return self._SET_COMMENT_TEMPLATE.format(
--- a/aerich/ddl/sqlite/init.py
+++ b/aerich/ddl/sqlite/init.py
@@ -1,8 +1,19 @@
+from typing import Type
+
+from tortoise import Model
 from tortoise.backends.sqlite.schema_generator import SqliteSchemaGenerator
+from tortoise.fields import Field

 from aerich.ddl import BaseDDL
+from aerich.exceptions import NotSupportError


 class SqliteDDL(BaseDDL):
    schema_generator_cls = SqliteSchemaGenerator
    DIALECT = SqliteSchemaGenerator.DIALECT
+
+    def drop_column(self, model: "Type[Model]", column_name: str):
+        raise NotSupportError("Drop column is not support in SQLite.")
+
+    def modify_column(self, model: "Type[Model]", field_object: Field):
+        raise NotSupportError("Modify column is not support in SQLite.")
--- a/aerich/enums.py
+++ b/aerich/enums.py
@@ -0,0 +1,7 @@
+from enum import Enum
+
+
+class Color(str, Enum):
+    green = "green"
+    red = "red"
+    yellow = "yellow"
--- a/aerich/exceptions.py
+++ b/aerich/exceptions.py
@@ -1,6 +1,4 @@
-class ConfigurationError(Exception):
+class NotSupportError(Exception):
    """
-    config error
+    raise when features not support
    """
-
-    pass
--- a/aerich/migrate.py
+++ b/aerich/migrate.py
@@ -1,11 +1,11 @@
 import json
 import os
 import re
-from copy import deepcopy
 from datetime import datetime
 from importlib import import_module
 from typing import Dict, List, Tuple, Type

+import click
 from tortoise import (
    BackwardFKRelation,
    BackwardOneToOneRelation,
@@ -17,7 +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


@@ -29,6 +29,8 @@ class Migrate:
    _upgrade_m2m: List[str] = []
    _downgrade_m2m: List[str] = []
    _aerich = Aerich.__name__
+    _rename_old = []
+    _rename_new = []

    ddl: BaseDDL
    migrate_config: dict
@@ -44,7 +46,10 @@ 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: int(x.split("_")[0]),
+        )

    @classmethod
    async def get_last_version(cls) -> Aerich:
@@ -85,11 +90,14 @@ class Migrate:

    @classmethod
    async def generate_version(cls, name=None):
-        now = datetime.now().strftime("%Y%M%D%H%M%S").replace("/", "")
+        now = datetime.now().strftime("%Y%m%d%H%M%S").replace("/", "")
        last_version_num = await cls._get_last_version_num()
        if last_version_num is None:
            return f"0_{now}_init.json"
-        return f"{last_version_num + 1}_{now}_{name}.json"
+        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):
@@ -124,7 +132,7 @@ class Migrate:
        return await cls._generate_diff_sql(name)

    @classmethod
-    def _add_operator(cls, operator: str, upgrade=True, fk=False):
+    def _add_operator(cls, operator: str, upgrade=True, fk_m2m=False):
        """
        add operator,differentiate fk because fk is order limit
        :param operator:
@@ -133,12 +141,12 @@ class Migrate:
        :return:
        """
        if upgrade:
-            if fk:
+            if fk_m2m:
                cls._upgrade_fk_m2m_index_operators.append(operator)
            else:
                cls.upgrade_operators.append(operator)
        else:
-            if fk:
+            if fk_m2m:
                cls._downgrade_fk_m2m_index_operators.append(operator)
            else:
                cls.downgrade_operators.append(operator)
@@ -161,7 +169,7 @@ class Migrate:
            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, encoding="utf-8") as f:
-                f.write(ret)
+                f.write(f"{ret}\n")

    @classmethod
    def _get_migrate_config(cls, config: dict, app: str, location: str):
@@ -172,14 +180,13 @@ class Migrate:
        :param location:
        :return:
        """
-        temp_config = deepcopy(config)
        path = os.path.join(location, app, cls.old_models)
        path = path.replace(os.sep, ".").lstrip(".")
-        temp_config["apps"][cls.diff_app] = {
+        config["apps"][cls.diff_app] = {
            "models": [path],
            "default_connection": config.get("apps").get(app).get("default_connection", "default"),
        }
-        return temp_config
+        return config

    @classmethod
    def write_old_models(cls, config: dict, app: str, location: str):
@@ -260,10 +267,34 @@ class Migrate:
            if cls._exclude_field(new_field, upgrade):
                continue
            if new_key not in old_keys:
+                new_field_dict = new_field.describe(serializable=True)
+                new_field_dict.pop("name", None)
+                new_field_dict.pop("db_column", None)
+                for diff_key in old_keys - new_keys:
+                    old_field = old_fields_map.get(diff_key)
+                    old_field_dict = old_field.describe(serializable=True)
+                    old_field_dict.pop("name", None)
+                    old_field_dict.pop("db_column", None)
+                    if old_field_dict == new_field_dict:
+                        if upgrade:
+                            is_rename = click.prompt(
+                                f"Rename {diff_key} to {new_key}?",
+                                default=True,
+                                type=bool,
+                                show_choices=True,
+                            )
+                            cls._rename_new.append(new_key)
+                            cls._rename_old.append(diff_key)
+                        else:
+                            is_rename = diff_key in cls._rename_new
+                        if is_rename:
                            cls._add_operator(
-                    cls._add_field(new_model, new_field),
-                    upgrade,
-                    isinstance(new_field, (ForeignKeyFieldInstance, ManyToManyFieldInstance)),
+                                cls._rename_field(new_model, old_field, new_field), upgrade,
+                            )
+                            break
+                else:
+                    cls._add_operator(
+                        cls._add_field(new_model, new_field), upgrade, cls._is_fk_m2m(new_field),
                    )
            else:
                old_field = old_fields_map.get(new_key)
@@ -287,6 +318,11 @@ class Migrate:
                            cls._add_operator(
                                cls._set_comment(new_model, new_field), upgrade=upgrade
                            )
+                        if new_field.field_type != old_field.field_type:
+                            cls._add_operator(
+                                cls._modify_field(new_model, new_field), upgrade=upgrade
+                            )
+                    else:
                        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
@@ -306,10 +342,22 @@ class Migrate:
                        upgrade,
                        cls._is_fk_m2m(new_field),
                    )
+                if isinstance(new_field, ForeignKeyFieldInstance):
+                    if old_field.db_constraint and not new_field.db_constraint:
+                        cls._add_operator(
+                            cls._drop_fk(new_model, new_field), upgrade, True,
+                        )
+                    if new_field.db_constraint and not old_field.db_constraint:
+                        cls._add_operator(
+                            cls._add_fk(new_model, new_field), upgrade, True,
+                        )

        for old_key in old_keys:
            field = old_fields_map.get(old_key)
            if old_key not in new_keys and not cls._exclude_field(field, upgrade):
+                if (upgrade and old_key not in cls._rename_old) or (
+                    not upgrade and old_key not in cls._rename_new
+                ):
                    cls._add_operator(
                        cls._remove_field(old_model, field), upgrade, cls._is_fk_m2m(field),
                    )
@@ -396,6 +444,10 @@ class Migrate:
    def _modify_field(cls, model: Type[Model], field: Field):
        return cls.ddl.modify_column(model, field)

+    @classmethod
+    def _drop_fk(cls, model: Type[Model], field: ForeignKeyFieldInstance):
+        return cls.ddl.drop_fk(model, field)
+
    @classmethod
    def _remove_field(cls, model: Type[Model], field: Field):
        if isinstance(field, ForeignKeyFieldInstance):
@@ -404,6 +456,10 @@ class Migrate:
            return cls.ddl.drop_m2m(field)
        return cls.ddl.drop_column(model, field.model_field_name)

+    @classmethod
+    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 _add_fk(cls, model: Type[Model], field: ForeignKeyFieldInstance):
        """
--- 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
@@ -1,6 +1,6 @@
 import importlib

-from asyncclick import BadOptionUsage, Context
+from click import BadOptionUsage, Context
 from tortoise import BaseDBAsyncClient, Tortoise


--- a/conftest.py
+++ b/conftest.py
@@ -31,24 +31,29 @@ def reset_migrate():
    Migrate._downgrade_m2m = []


-@pytest.fixture(scope="session")
-def loop():
-    loop = asyncio.get_event_loop()
-    return loop
+@pytest.yield_fixture(scope="session")
+def event_loop():
+    policy = asyncio.get_event_loop_policy()
+    res = policy.new_event_loop()
+    asyncio.set_event_loop(res)
+    res._close = res.close
+    res.close = lambda: None
+
+    yield res
+
+    res._close()


@pytest.fixture(scope="session", autouse=True)
-def initialize_tests(loop, request):
+async def initialize_tests(event_loop, request):
    tortoise_orm["connections"]["diff_models"] = "sqlite://:memory:"
    tortoise_orm["apps"]["diff_models"] = {
        "models": ["tests.diff_models"],
        "default_connection": "diff_models",
    }

-    loop.run_until_complete(Tortoise.init(config=tortoise_orm, _create_db=True))
-    loop.run_until_complete(
-        generate_schema_for_client(Tortoise.get_connection("default"), safe=True)
-    )
+    await Tortoise.init(config=tortoise_orm, _create_db=True)
+    await generate_schema_for_client(Tortoise.get_connection("default"), safe=True)

    client = Tortoise.get_connection("default")
    if client.schema_generator is MySQLSchemaGenerator:
@@ -58,4 +63,4 @@ def initialize_tests(loop, request):
    elif client.schema_generator is AsyncpgSchemaGenerator:
        Migrate.ddl = PostgresDDL(client)

-    request.addfinalizer(lambda: loop.run_until_complete(Tortoise._drop_databases()))
+    request.addfinalizer(lambda: event_loop.run_until_complete(Tortoise._drop_databases()))
--- a/poetry.lock
+++ b/poetry.lock
@@ -18,25 +18,10 @@ description = "asyncio bridge to the standard sqlite3 module"
 name = "aiosqlite"
 optional = false
 python-versions = ">=3.6"
-version = "0.13.0"
-
-[[package]]
-category = "main"
-description = "High level compatibility layer for multiple asynchronous event loop implementations"
-name = "anyio"
-optional = false
-python-versions = ">=3.5.3"
-version = "1.3.1"
+version = "0.15.0"

 [package.dependencies]
-async-generator = "*"
-sniffio = ">=1.1"
-
-[package.extras]
-curio = ["curio (>=0.9)"]
-doc = ["sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
-test = ["coverage (>=4.5)", "hypothesis (>=4.0)", "pytest (>=3.7.2)", "uvloop"]
-trio = ["trio (>=0.12)"]
+typing_extensions = "*"

 [[package]]
 category = "dev"
@@ -54,39 +39,16 @@ optional = false
 python-versions = "*"
 version = "1.4.4"

-[[package]]
-category = "main"
-description = "Async generators and context managers for Python 3.5+"
-name = "async-generator"
-optional = false
-python-versions = ">=3.5"
-version = "1.10"
-
-[[package]]
-category = "main"
-description = "A simple anyio-compatible fork of Click, for powerful command line utilities."
-name = "asyncclick"
-optional = false
-python-versions = ">=3.6"
-version = "7.0.9"
-
-[package.dependencies]
-anyio = "*"
-
-[package.extras]
-dev = ["coverage", "pytest-runner", "pytest-trio", "pytest (>=3)", "sphinx", "tox"]
-docs = ["sphinx"]
-
 [[package]]
 category = "main"
 description = "An asyncio PostgreSQL driver"
 name = "asyncpg"
 optional = true
 python-versions = ">=3.5.0"
-version = "0.20.1"
+version = "0.21.0"

 [package.extras]
-dev = ["Cython (0.29.14)", "pytest (>=3.6.0)", "Sphinx (>=1.7.3,<1.8.0)", "sphinxcontrib-asyncio (>=0.2.0,<0.3.0)", "sphinx-rtd-theme (>=0.2.4,<0.3.0)", "pycodestyle (>=2.5.0,<2.6.0)", "flake8 (>=3.7.9,<3.8.0)", "uvloop (>=0.14.0,<0.15.0)"]
+dev = ["Cython (0.29.20)", "pytest (>=3.6.0)", "Sphinx (>=1.7.3,<1.8.0)", "sphinxcontrib-asyncio (>=0.2.0,<0.3.0)", "sphinx-rtd-theme (>=0.2.4,<0.3.0)", "pycodestyle (>=2.5.0,<2.6.0)", "flake8 (>=3.7.9,<3.8.0)", "uvloop (>=0.14.0,<0.15.0)"]
 docs = ["Sphinx (>=1.7.3,<1.8.0)", "sphinxcontrib-asyncio (>=0.2.0,<0.3.0)", "sphinx-rtd-theme (>=0.2.4,<0.3.0)"]
 test = ["pycodestyle (>=2.5.0,<2.6.0)", "flake8 (>=3.7.9,<3.8.0)", "uvloop (>=0.14.0,<0.15.0)"]

@@ -105,13 +67,13 @@ description = "Classes Without Boilerplate"
 name = "attrs"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-version = "19.3.0"
+version = "20.2.0"

 [package.extras]
-azure-pipelines = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "pytest-azurepipelines"]
-dev = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "pre-commit"]
-docs = ["sphinx", "zope.interface"]
-tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
+dev = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface", "sphinx", "sphinx-rtd-theme", "pre-commit"]
+docs = ["sphinx", "sphinx-rtd-theme", "zope.interface"]
+tests = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.interface"]
+tests_no_zope = ["coverage (>=5.0.2)", "hypothesis", "pympler", "pytest (>=4.3.0)", "six"]

 [[package]]
 category = "dev"
@@ -154,13 +116,13 @@ description = "Foreign Function Interface for Python calling C code."
 name = "cffi"
 optional = true
 python-versions = "*"
-version = "1.14.0"
+version = "1.14.3"

 [package.dependencies]
 pycparser = "*"

 [[package]]
-category = "dev"
+category = "main"
 description = "Composable command line interface toolkit"
 name = "click"
 optional = false
@@ -182,17 +144,17 @@ description = "cryptography is a package which provides cryptographic recipes an
 name = "cryptography"
 optional = true
 python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*"
-version = "2.9.2"
+version = "3.1.1"

 [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 || >1.8.0)", "sphinx-rtd-theme"]
+docs = ["sphinx (>=1.6.5,<1.8.0 || >1.8.0,<3.1.0 || >3.1.0,<3.1.1 || >3.1.1)", "sphinx-rtd-theme"]
 docstest = ["doc8", "pyenchant (>=1.6.11)", "twine (>=1.12.0)", "sphinxcontrib-spelling (>=4.0.1)"]
-idna = ["idna (>=2.1)"]
-pep8test = ["flake8", "flake8-import-order", "pep8-naming"]
+pep8test = ["black", "flake8", "flake8-import-order", "pep8-naming"]
+ssh = ["bcrypt (>=3.1.5)"]
 test = ["pytest (>=3.6.0,<3.9.0 || >3.9.0,<3.9.1 || >3.9.1,<3.9.2 || >3.9.2)", "pretend", "iso8601", "pytz", "hypothesis (>=1.11.4,<3.79.2 || >3.79.2)"]

 [[package]]
@@ -222,6 +184,10 @@ 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"
@@ -239,18 +205,42 @@ description = "Python Git Library"
 name = "gitpython"
 optional = false
 python-versions = ">=3.4"
-version = "3.1.3"
+version = "3.1.8"

 [package.dependencies]
 gitdb = ">=4.0.1,<5"

+[[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 = "2.0.0"
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["sphinx", "rst.linker"]
+testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
+
+[[package]]
+category = "dev"
+description = "iniconfig: brain-dead simple config-ini parsing"
+name = "iniconfig"
+optional = false
+python-versions = "*"
+version = "1.0.1"
+
 [[package]]
 category = "main"
 description = "Simple module to parse ISO 8601 dates"
 name = "iso8601"
 optional = false
 python-versions = "*"
-version = "0.1.12"
+version = "0.1.13"

 [[package]]
 category = "dev"
@@ -258,10 +248,11 @@ description = "A Python utility / library to sort Python imports."
 name = "isort"
 optional = false
 python-versions = ">=3.6,<4.0"
-version = "5.0.3"
+version = "5.5.3"

 [package.extras]
-pipfile_deprecated_finder = ["pipreqs", "requirementslib", "tomlkit (>=0.5.3)"]
+colors = ["colorama (>=0.4.3,<0.5.0)"]
+pipfile_deprecated_finder = ["pipreqs", "requirementslib"]
 requirements_deprecated_finder = ["pipreqs", "pip-api"]

 [[package]]
@@ -278,7 +269,7 @@ description = "More routines for operating on iterables, beyond itertools"
 name = "more-itertools"
 optional = false
 python-versions = ">=3.5"
-version = "8.4.0"
+version = "8.5.0"

 [[package]]
 category = "dev"
@@ -305,8 +296,8 @@ category = "dev"
 description = "Python Build Reasonableness"
 name = "pbr"
 optional = false
-python-versions = "*"
-version = "5.4.5"
+python-versions = ">=2.6"
+version = "5.5.0"

 [[package]]
 category = "dev"
@@ -316,6 +307,11 @@ 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"]

@@ -349,7 +345,7 @@ 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)"]
@@ -389,7 +385,7 @@ description = "A SQL query builder API for Python"
 name = "pypika"
 optional = false
 python-versions = "*"
-version = "0.37.15"
+version = "0.40.0"

 [[package]]
 category = "dev"
@@ -397,20 +393,25 @@ description = "pytest: simple powerful testing with Python"
 name = "pytest"
 optional = false
 python-versions = ">=3.5"
-version = "5.4.3"
+version = "6.0.2"

 [package.dependencies]
 atomicwrites = ">=1.0"
 attrs = ">=17.4.0"
 colorama = "*"
+iniconfig = "*"
 more-itertools = ">=4.0.0"
 packaging = "*"
 pluggy = ">=0.12,<1.0"
-py = ">=1.5.0"
-wcwidth = "*"
+py = ">=1.8.2"
+toml = "*"
+
+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=0.12"

 [package.extras]
-checkqa-mypy = ["mypy (v0.761)"]
+checkqa_mypy = ["mypy (0.780)"]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "requests", "xmlschema"]

 [[package]]
@@ -433,26 +434,41 @@ description = "run tests in isolated forked subprocesses"
 name = "pytest-forked"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.2.0"
+version = "1.3.0"

 [package.dependencies]
-pytest = ">=3.1.0"
+py = "*"
+pytest = ">=3.10"
+
+[[package]]
+category = "dev"
+description = "Thin-wrapper around the mock package for easier use with pytest"
+name = "pytest-mock"
+optional = false
+python-versions = ">=3.5"
+version = "3.3.1"
+
+[package.dependencies]
+pytest = ">=5.0"
+
+[package.extras]
+dev = ["pre-commit", "tox", "pytest-asyncio"]

 [[package]]
 category = "dev"
 description = "pytest xdist plugin for distributed testing and loop-on-failing modes"
 name = "pytest-xdist"
 optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.32.0"
+python-versions = ">=3.5"
+version = "2.1.0"

 [package.dependencies]
 execnet = ">=1.1"
-pytest = ">=4.4.0"
+pytest = ">=6.0.0"
 pytest-forked = "*"
-six = "*"

 [package.extras]
+psutil = ["psutil (>=3.0)"]
 testing = ["filelock"]

 [[package]]
@@ -469,7 +485,7 @@ description = "Alternative regular expression module, to replace re."
 name = "regex"
 optional = false
 python-versions = "*"
-version = "2020.6.8"
+version = "2020.7.14"

 [[package]]
 category = "main"
@@ -487,25 +503,21 @@ 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"
-name = "sniffio"
-optional = false
-python-versions = ">=3.5"
-version = "1.1.0"
-
 [[package]]
 category = "dev"
 description = "Manage dynamic plugins for Python applications"
 name = "stevedore"
 optional = false
 python-versions = ">=3.6"
-version = "2.0.1"
+version = "3.2.2"

 [package.dependencies]
 pbr = ">=2.0.0,<2.1.0 || >2.1.0"

+[package.dependencies.importlib-metadata]
+python = "<3.8"
+version = ">=1.7.0"
+
 [[package]]
 category = "dev"
 description = "Python Library for Tom's Obvious, Minimal Language"
@@ -520,12 +532,12 @@ description = "Easy async ORM for python, built with relations in mind"
 name = "tortoise-orm"
 optional = false
 python-versions = "*"
-version = "0.16.13"
+version = "0.16.16"

 [package.dependencies]
 aiosqlite = ">=0.11.0"
 iso8601 = ">=0.1.12"
-pypika = ">=0.36.5"
+pypika = ">=0.39.0"
 typing-extensions = ">=3.7"

 [package.extras]
@@ -545,22 +557,28 @@ description = "Backported and Experimental Type Hints for Python 3.5+"
 name = "typing-extensions"
 optional = false
 python-versions = "*"
-version = "3.7.4.2"
+version = "3.7.4.3"

 [[package]]
 category = "dev"
-description = "Measures the displayed width of unicode strings in a terminal"
-name = "wcwidth"
+description = "Backport of pathlib-compatible object wrapper for zip files"
+marker = "python_version < \"3.8\""
+name = "zipp"
 optional = false
-python-versions = "*"
-version = "0.2.5"
+python-versions = ">=3.6"
+version = "3.2.0"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
+testing = ["pytest (>=3.5,<3.7.3 || >3.7.3)", "pytest-checkdocs (>=1.2.3)", "pytest-flake8", "pytest-cov", "jaraco.test (>=3.2.0)", "jaraco.itertools", "func-timeout", "pytest-black (>=0.3.7)", "pytest-mypy"]

 [extras]
 dbdrivers = ["aiomysql", "asyncpg"]

 [metadata]
-content-hash = "485702557f7b65db14e44d459fb1c985f56caf4b14857006ef96304d6516d976"
-python-versions = "^3.8"
+content-hash = "43fe9c0036f4d55d38f82c263887d8a7d9a35a597e02036b70a631955ff73149"
+lock-version = "1.0"
+python-versions = "^3.7"

 [metadata.files]
 aiomysql = [
@@ -568,12 +586,8 @@ aiomysql = [
    {file = "aiomysql-0.0.20.tar.gz", hash = "sha256:d89ce25d44dadb43cf2d9e4603bd67b7a0ad12d5e67208de013629ba648df2ba"},
 ]
 aiosqlite = [
-    {file = "aiosqlite-0.13.0-py3-none-any.whl", hash = "sha256:50688c40632ae249f986ab3ae2c66a45c0535b84a5d4aae0e0be572b5fed6909"},
-    {file = "aiosqlite-0.13.0.tar.gz", hash = "sha256:6e92961ae9e606b43b05e29b129e346b29e400fcbd63e3c0c564d89230257645"},
-]
-anyio = [
-    {file = "anyio-1.3.1-py3-none-any.whl", hash = "sha256:f21b4fafeec1b7db81e09a907e44e374a1e39718d782a488fdfcdcf949c8950c"},
-    {file = "anyio-1.3.1.tar.gz", hash = "sha256:a46bb2b7743455434afd9adea848a3c4e0b7321aee3e9d08844b11d348d3b5a0"},
+    {file = "aiosqlite-0.15.0-py3-none-any.whl", hash = "sha256:19b984b6702aed9f1c85c023f37296954547fc4030dae8e9d027b2a930bed78b"},
+    {file = "aiosqlite-0.15.0.tar.gz", hash = "sha256:a2884793f4dc8f2798d90e1dfecb2b56a6d479cf039f7ec52356a7fd5f3bdc57"},
 ]
 apipkg = [
    {file = "apipkg-1.5-py2.py3-none-any.whl", hash = "sha256:58587dd4dc3daefad0487f6d9ae32b4542b185e1c36db6993290e7c41ca2b47c"},
@@ -583,43 +597,40 @@ appdirs = [
    {file = "appdirs-1.4.4-py2.py3-none-any.whl", hash = "sha256:a841dacd6b99318a741b166adb07e19ee71a274450e68237b4650ca1055ab128"},
    {file = "appdirs-1.4.4.tar.gz", hash = "sha256:7d5d0167b2b1ba821647616af46a749d1c653740dd0d2415100fe26e27afdf41"},
 ]
-async-generator = [
-    {file = "async_generator-1.10-py3-none-any.whl", hash = "sha256:01c7bf666359b4967d2cda0000cc2e4af16a0ae098cbffcb8472fb9e8ad6585b"},
-    {file = "async_generator-1.10.tar.gz", hash = "sha256:6ebb3d106c12920aaae42ccb6f787ef5eefdcdd166ea3d628fa8476abe712144"},
-]
-asyncclick = [
-    {file = "asyncclick-7.0.9.tar.gz", hash = "sha256:62cebf3eca36d973802e2dd521ca1db11c5bf4544e9795e093d1a53cb688a8c2"},
-]
 asyncpg = [
-    {file = "asyncpg-0.20.1-cp35-cp35m-macosx_10_13_x86_64.whl", hash = "sha256:f7184689177eeb5a11fa1b2baf3f6f2e26bfd7a85acf4de1a3adbd0867d7c0e2"},
-    {file = "asyncpg-0.20.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:f0c9719ac00615f097fe91082b785bce36dbf02a5ec4115ede0ebfd2cd9500cb"},
-    {file = "asyncpg-0.20.1-cp35-cp35m-manylinux1_x86_64.whl", hash = "sha256:1388caa456070dab102be874205e3ae8fd1de2577d5de9fa22e65ba5c0f8b110"},
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 typing-extensions = [
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-    {file = "typing_extensions-3.7.4.2-py3-none-any.whl", hash = "sha256:6e95524d8a547a91e08f404ae485bbb71962de46967e1b71a0cb89af24e761c5"},
-    {file = "typing_extensions-3.7.4.2.tar.gz", hash = "sha256:79ee589a3caca649a9bfd2a8de4709837400dfa00b6cc81962a1e6a1815969ae"},
+    {file = "typing_extensions-3.7.4.3-py2-none-any.whl", hash = "sha256:dafc7639cde7f1b6e1acc0f457842a83e722ccca8eef5270af2d74792619a89f"},
+    {file = "typing_extensions-3.7.4.3-py3-none-any.whl", hash = "sha256:7cb407020f00f7bfc3cb3e7881628838e69d8f3fcab2f64742a5e76b2f841918"},
+    {file = "typing_extensions-3.7.4.3.tar.gz", hash = "sha256:99d4073b617d30288f569d3f13d2bd7548c3a7e4c8de87db09a9d29bb3a4a60c"},
 ]
-wcwidth = [
-    {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-3.2.0-py3-none-any.whl", hash = "sha256:43f4fa8d8bb313e65d8323a3952ef8756bf40f9a5c3ea7334be23ee4ec8278b6"},
+    {file = "zipp-3.2.0.tar.gz", hash = "sha256:b52f22895f4cfce194bc8172f3819ee8de7540aa6d873535a8668b730b8b411f"},
 ]
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aerich"
-version = "0.2.1"
+version = "0.2.5"
 description = "A database migrations tool for Tortoise ORM."
 authors = ["long2ice <long2ice@gmail.com>"]
 license = "Apache-2.0"
@@ -12,12 +12,12 @@ keywords = ["migrate", "Tortoise-ORM", "mysql"]
 packages = [
    { include = "aerich" }
 ]
-include = ["CHANGELOG.rst", "LICENSE", "README.md"]
+include = ["CHANGELOG.md", "LICENSE", "README.md"]

 [tool.poetry.dependencies]
-python = "^3.8"
+python = "^3.7"
 tortoise-orm = "*"
-asyncclick = "*"
+click = "*"
 pydantic = "*"
 aiomysql = {version = "*", optional = true}
 asyncpg = {version = "*", optional = true}
@@ -30,6 +30,7 @@ pytest = "*"
 pytest-xdist = "*"
 pytest-asyncio = "*"
 bandit = "*"
+pytest-mock = "*"

 [tool.poetry.extras]
 dbdrivers = ["aiomysql", "asyncpg"]
--- a/tests/diff_models.py
+++ b/tests/diff_models.py
@@ -22,15 +22,21 @@ class Status(IntEnum):


 class User(Model):
-    username = fields.CharField(max_length=20,)
+    username = fields.CharField(max_length=20)
    password = fields.CharField(max_length=200)
-    last_login = fields.DatetimeField(description="Last Login", default=datetime.datetime.now)
+    last_login_at = fields.DatetimeField(description="Last Login", default=datetime.datetime.now)
    is_active = fields.BooleanField(default=True, description="Is Active")
    is_superuser = fields.BooleanField(default=False, description="Is SuperUser")
    avatar = fields.CharField(max_length=200, default="")
    intro = fields.TextField(default="")


+class Email(Model):
+    email = fields.CharField(max_length=200)
+    is_primary = fields.BooleanField(default=False)
+    user = fields.ForeignKeyField("diff_models.User", db_constraint=True)
+
+
 class Category(Model):
    slug = fields.CharField(max_length=200)
    user = fields.ForeignKeyField("diff_models.User", description="User")
--- a/tests/models.py
+++ b/tests/models.py
@@ -31,6 +31,12 @@ class User(Model):
    intro = fields.TextField(default="")


+class Email(Model):
+    email = fields.CharField(max_length=200)
+    is_primary = fields.BooleanField(default=False)
+    user = fields.ForeignKeyField("models.User", db_constraint=False)
+
+
 class Category(Model):
    slug = fields.CharField(max_length=200)
    name = fields.CharField(max_length=200)
--- a/tests/test_ddl.py
+++ b/tests/test_ddl.py
@@ -1,6 +1,9 @@
+import pytest
+
 from aerich.ddl.mysql import MysqlDDL
 from aerich.ddl.postgres import PostgresDDL
 from aerich.ddl.sqlite import SqliteDDL
+from aerich.exceptions import NotSupportError
 from aerich.migrate import Migrate
 from tests.models import Category, User

@@ -63,27 +66,26 @@ def test_add_column():


 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'
+    if isinstance(Migrate.ddl, SqliteDDL):
+        with pytest.raises(NotSupportError):
+            ret0 = Migrate.ddl.modify_column(Category, Category._meta.fields_map.get("name"))
+            ret1 = Migrate.ddl.modify_column(User, User._meta.fields_map.get("is_active"))
+
+    else:
+        ret0 = Migrate.ddl.modify_column(Category, Category._meta.fields_map.get("name"))
+        ret1 = Migrate.ddl.modify_column(User, User._meta.fields_map.get("is_active"))
+    if isinstance(Migrate.ddl, MysqlDDL):
+        assert ret0 == "ALTER TABLE `category` MODIFY COLUMN `name` VARCHAR(200) NOT NULL"
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert ret0 == 'ALTER TABLE "category" ALTER COLUMN "name" TYPE VARCHAR(200)'

-    ret = Migrate.ddl.modify_column(User, User._meta.fields_map.get("is_active"))
    if isinstance(Migrate.ddl, MysqlDDL):
        assert (
-            ret
+            ret1
            == "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 */'
-        )
+        assert ret1 == 'ALTER TABLE "user" ALTER COLUMN "is_active" TYPE BOOL'


 def test_alter_column_default():
@@ -131,10 +133,14 @@ def test_set_comment():


 def test_drop_column():
+    if isinstance(Migrate.ddl, SqliteDDL):
+        with pytest.raises(NotSupportError):
+            ret = Migrate.ddl.drop_column(Category, "name")
+    else:
        ret = Migrate.ddl.drop_column(Category, "name")
    if isinstance(Migrate.ddl, MysqlDDL):
        assert ret == "ALTER TABLE `category` DROP COLUMN `name`"
-    else:
+    elif isinstance(Migrate.ddl, PostgresDDL):
        assert ret == 'ALTER TABLE "category" DROP COLUMN "name"'


@@ -146,6 +152,12 @@ def test_add_index():
        assert (
            index_u == "ALTER TABLE `category` ADD UNIQUE INDEX `uid_category_name_8b0cb9` (`name`)"
        )
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert index == 'CREATE INDEX "idx_category_name_8b0cb9" ON "category" ("name")'
+        assert (
+            index_u
+            == 'ALTER TABLE "category" ADD CONSTRAINT "uid_category_name_8b0cb9" UNIQUE ("name")'
+        )
    else:
        assert index == 'ALTER TABLE "category" ADD  INDEX "idx_category_name_8b0cb9" ("name")'
        assert (
@@ -155,10 +167,16 @@ def test_add_index():

 def test_drop_index():
    ret = Migrate.ddl.drop_index(Category, ["name"])
+    ret_u = Migrate.ddl.drop_index(Category, ["name"], True)
    if isinstance(Migrate.ddl, MysqlDDL):
        assert ret == "ALTER TABLE `category` DROP INDEX `idx_category_name_8b0cb9`"
+        assert ret_u == "ALTER TABLE `category` DROP INDEX `uid_category_name_8b0cb9`"
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert ret == 'DROP INDEX "idx_category_name_8b0cb9"'
+        assert ret_u == 'ALTER TABLE "category" DROP CONSTRAINT "uid_category_name_8b0cb9"'
    else:
        assert ret == 'ALTER TABLE "category" DROP INDEX "idx_category_name_8b0cb9"'
+        assert ret_u == 'ALTER TABLE "category" DROP INDEX "uid_category_name_8b0cb9"'


 def test_add_fk():
@@ -179,5 +197,7 @@ 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"'
--- a/tests/test_migrate.py
+++ b/tests/test_migrate.py
@@ -1,30 +1,79 @@
+import pytest
+from pytest_mock import MockerFixture
 from tortoise import Tortoise

 from aerich.ddl.mysql import MysqlDDL
+from aerich.ddl.postgres import PostgresDDL
+from aerich.ddl.sqlite import SqliteDDL
+from aerich.exceptions import NotSupportError
 from aerich.migrate import Migrate


-def test_migrate():
+def test_migrate(mocker: MockerFixture):
+    mocker.patch("click.prompt", return_value=True)
    apps = Tortoise.apps
    models = apps.get("models")
    diff_models = apps.get("diff_models")
    Migrate.diff_models(diff_models, models)
+    if isinstance(Migrate.ddl, SqliteDDL):
+        with pytest.raises(NotSupportError):
            Migrate.diff_models(models, diff_models, False)
+    else:
+        Migrate.diff_models(models, diff_models, False)
+    Migrate._merge_operators()
    if isinstance(Migrate.ddl, MysqlDDL):
        assert Migrate.upgrade_operators == [
+            "ALTER TABLE `email` DROP FOREIGN KEY `fk_email_user_5b58673d`",
            "ALTER TABLE `category` ADD `name` VARCHAR(200) NOT NULL",
            "ALTER TABLE `user` ADD UNIQUE INDEX `uid_user_usernam_9987ab` (`username`)",
+            "ALTER TABLE `user` RENAME COLUMN `last_login_at` TO `last_login`",
        ]
        assert Migrate.downgrade_operators == [
            "ALTER TABLE `category` DROP COLUMN `name`",
            "ALTER TABLE `user` DROP INDEX `uid_user_usernam_9987ab`",
+            "ALTER TABLE `user` RENAME COLUMN `last_login` TO `last_login_at`",
+            "ALTER TABLE `email` ADD CONSTRAINT `fk_email_user_5b58673d` FOREIGN KEY "
+            "(`user_id`) REFERENCES `user` (`id`) ON DELETE CASCADE",
        ]
-    else:
+    elif isinstance(Migrate.ddl, PostgresDDL):
        assert Migrate.upgrade_operators == [
+            'ALTER TABLE "email" DROP CONSTRAINT "fk_email_user_5b58673d"',
            'ALTER TABLE "category" ADD "name" VARCHAR(200) NOT NULL',
-            'ALTER TABLE "user" ADD UNIQUE INDEX "uid_user_usernam_9987ab" ("username")',
+            'ALTER TABLE "user" ADD CONSTRAINT "uid_user_usernam_9987ab" UNIQUE ("username")',
+            'ALTER TABLE "user" RENAME COLUMN "last_login_at" TO "last_login"',
        ]
        assert Migrate.downgrade_operators == [
            'ALTER TABLE "category" DROP COLUMN "name"',
-            'ALTER TABLE "user" DROP INDEX "uid_user_usernam_9987ab"',
+            'ALTER TABLE "user" DROP CONSTRAINT "uid_user_usernam_9987ab"',
+            'ALTER TABLE "user" RENAME COLUMN "last_login" TO "last_login_at"',
+            'ALTER TABLE "email" ADD CONSTRAINT "fk_email_user_5b58673d" FOREIGN KEY ("user_id") REFERENCES "user" ("id") ON DELETE CASCADE',
+        ]
+    elif isinstance(Migrate.ddl, SqliteDDL):
+        assert Migrate.upgrade_operators == [
+            'ALTER TABLE "email" DROP FOREIGN KEY "fk_email_user_5b58673d"',
+            'ALTER TABLE "category" ADD "name" VARCHAR(200) NOT NULL',
+            'ALTER TABLE "user" ADD UNIQUE INDEX "uid_user_usernam_9987ab" ("username")',
+            'ALTER TABLE "user" RENAME COLUMN "last_login_at" TO "last_login"',
+        ]
+        assert Migrate.downgrade_operators == []
+
+
+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",
+        ],
+    )
+
+    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",
    ]
Author	SHA1	Message	Date
long2ice	9889d9492b	add ? when ask rename	2020-09-28 17:22:05 +08:00
long2ice	823368aea8	fix event loop error	2020-09-28 17:16:35 +08:00
long2ice	6b1ad46cf1	update README.md	2020-09-28 12:50:43 +08:00
long2ice	ce8c0b1f06	Support `db_constraint` in fk	2020-09-28 10:40:04 +08:00
long2ice	43922d3734	update CHANGELOG.md	2020-09-27 14:18:19 +08:00
long2ice	48c5318737	remove asyncclick	2020-09-25 18:27:08 +08:00
long2ice	002221e557	update README.md	2020-09-25 17:51:31 +08:00
long2ice	141d7205bf	Add `Rename` support	2020-09-25 17:48:32 +08:00
long2ice	af4d4be19a	Fix Postgres alter table	2020-09-24 15:02:28 +08:00
long2ice	3b4d9b47ce	update version	2020-09-23 18:33:31 +08:00
long2ice	4b0c4ae7d0	fix test error	2020-09-21 15:03:16 +08:00
long2ice	dc821d8a02	Merge remote-tracking branch 'origin/dev' into dev	2020-09-21 11:46:21 +08:00
long2ice	d18a6b5be0	add sqlite not support error	2020-09-21 11:44:34 +08:00
long2ice	1e56a70f21	Merge pull request #44 from saintlyzero/dev append new line in cp_models	2020-09-16 22:21:09 +08:00
saintlyzero	ab1e1aab75	append new line in cp_models	2020-09-16 19:30:03 +05:30
long2ice	00dd04f97d	update conftest.py	2020-09-10 18:42:19 +08:00
long2ice	fc914acc80	update README.md	2020-09-09 21:10:10 +08:00
long2ice	ac03ecb002	update README.md	2020-09-02 13:34:53 +08:00
long2ice	235ef3f7ea	fix datetime string format	2020-08-19 09:28:36 +08:00
long2ice	e00eb7f3d9	update README.md	2020-08-17 12:40:39 +08:00
long2ice	d6c8941676	update CHANGELOG.rst	2020-08-07 18:12:40 +08:00
long2ice	cf062c9310	update CHANGELOG.rst	2020-08-07 09:29:30 +08:00
long2ice	309adec8c9	Merge pull request #34 from moubctez/postgresql_unique PostgreSQL add/drop index/unique	2020-08-07 09:27:03 +08:00
Adam Ciarciński	8674142ba8	Fix test_migrate	2020-08-06 17:59:12 +02:00
Adam Ciarciński	cda9bd1c47	Save 1 space in tests	2020-08-06 17:50:28 +02:00
Adam Ciarciński	198e4e0032	Save 1 space	2020-08-06 17:49:26 +02:00
Adam Ciarciński	1b440477a2	PostgreSQL add/drop index/unique	2020-08-06 17:45:56 +02:00
long2ice	1263c6f735	Fix tortoise ssl config	2020-07-30 11:30:02 +08:00
long2ice	6504384879	update README.md	2020-07-29 10:30:25 +08:00
long2ice	17ab0a1421	fix version sort and add test	2020-07-29 10:21:43 +08:00
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	19c9c2c30f	Merge branch 'dev'	2020-06-12 17:53:30 +08:00
long2ice	dc8b4c2263	Merge remote-tracking branch 'origin/master'	2020-05-27 11:22:01 +08:00
long2ice	2fc43cb0d8	Merge pull request #7 from long2ice/dev v0.1.9	2020-05-26 20:06:56 +08:00
long2ice	cb5dffeeb8	Merge branch 'dev'	2020-05-26 20:05:35 +08:00
long2ice	615d9747dc	Merge pull request #5 from long2ice/dev v0.1.8	2020-05-25 22:43:36 +08:00