update README.md

PostgreSQL add/drop index/unique

CHANGELOG.md

@@ -1,66 +1,74 @@
-=========
-ChangeLog
-=========
-0.2
-===
+# ChangeLog
+
+## 0.2
+
+### 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
------
-- Now aerich is basic worked.
+### 0.1.1
+
+- Now aerich is basic worked.

Makefile

@@ -50,7 +50,4 @@ testall: deps test_sqlite test_postgres test_mysql
 build: deps
 	@poetry build
 
-publish: deps
-	@poetry publish --build
-
 ci: check testall

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
 
@@ -153,28 +147,14 @@ $ 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
 

aerich/__init__.py

@@ -1 +1 @@
-__version__ = "0.2.1"
+__version__ = "0.2.3"

aerich/cli.py

@@ -1,3 +1,4 @@
+import functools
 import json
 import os
 import sys
@@ -27,6 +28,16 @@ class Color(str, Enum):
 parser = ConfigParser()
 
 
+def close_db(func):
+    @functools.wraps(func)
+    async def close_db_inner(*args, **kwargs):
+        result = await func(*args, **kwargs)
+        await Tortoise.close_connections()
+        return result
+
+    return close_db_inner
+
+
 @click.group(context_settings={"help_option_names": ["-h", "--help"]})
 @click.version_option(__version__, "-V", "--version")
 @click.option(
@@ -70,6 +81,7 @@ async def cli(ctx: Context, config, app, name):
 @cli.command(help="Generate migrate changes file.")
 @click.option("--name", default="update", show_default=True, help="Migrate name.")
 @click.pass_context
+@close_db
 async def migrate(ctx: Context, name):
     config = ctx.obj["config"]
     location = ctx.obj["location"]
@@ -84,6 +96,7 @@ async def migrate(ctx: Context, name):
 
 @cli.command(help="Upgrade to latest version.")
 @click.pass_context
+@close_db
 async def upgrade(ctx: Context):
     config = ctx.obj["config"]
     app = ctx.obj["app"]
@@ -110,6 +123,7 @@ async def upgrade(ctx: Context):
 
 @cli.command(help="Downgrade to previous version.")
 @click.pass_context
+@close_db
 async def downgrade(ctx: Context):
     app = ctx.obj["app"]
     config = ctx.obj["config"]
@@ -132,6 +146,7 @@ async def downgrade(ctx: Context):
 
 @cli.command(help="Show current available heads in migrate location.")
 @click.pass_context
+@close_db
 async def heads(ctx: Context):
     app = ctx.obj["app"]
     versions = Migrate.get_all_version_files()
@@ -146,7 +161,8 @@ async def heads(ctx: Context):
 
 @cli.command(help="List all migrate items.")
 @click.pass_context
-def history(ctx):
+@close_db
+async def history(ctx: Context):
     versions = Migrate.get_all_version_files()
     for version in versions:
         click.secho(version, fg=Color.green)
@@ -196,6 +212,7 @@ async def init(
     show_default=True,
 )
 @click.pass_context
+@close_db
 async def init_db(ctx: Context, safe):
     config = ctx.obj["config"]
     location = ctx.obj["location"]

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(

aerich/migrate.py

@@ -1,7 +1,6 @@
 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
@@ -17,7 +16,7 @@ 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
 
 
@@ -44,7 +43,10 @@ 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 +87,14 @@ 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):
@@ -172,14 +177,13 @@ 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):

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:

poetry.lock

@@ -18,7 +18,10 @@ description = "asyncio bridge to the standard sqlite3 module"
 name = "aiosqlite"
 optional = false
 python-versions = ">=3.6"
-version = "0.13.0"
+version = "0.15.0"
+
+[package.dependencies]
+typing_extensions = "*"
 
 [[package]]
 category = "main"
@@ -26,10 +29,11 @@ description = "High level compatibility layer for multiple asynchronous event lo
 name = "anyio"
 optional = false
 python-versions = ">=3.5.3"
-version = "1.3.1"
+version = "1.4.0"
 
 [package.dependencies]
 async-generator = "*"
+idna = ">=2.8"
 sniffio = ">=1.1"
 
 [package.extras]
@@ -154,7 +158,7 @@ description = "Foreign Function Interface for Python calling C code."
 name = "cffi"
 optional = true
 python-versions = "*"
-version = "1.14.0"
+version = "1.14.1"
 
 [package.dependencies]
 pycparser = "*"
@@ -182,17 +186,18 @@ 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 = "3.0"
 
 [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 +227,10 @@ 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"
@@ -239,11 +248,43 @@ description = "Python Git Library"
 name = "gitpython"
 optional = false
 python-versions = ">=3.4"
-version = "3.1.3"
+version = "3.1.7"
 
 [package.dependencies]
 gitdb = ">=4.0.1,<5"
 
+[[package]]
+category = "main"
+description = "Internationalized Domain Names in Applications (IDNA)"
+name = "idna"
+optional = false
+python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
+version = "2.10"
+
+[[package]]
+category = "dev"
+description = "Read metadata from Python packages"
+marker = "python_version < \"3.8\""
+name = "importlib-metadata"
+optional = false
+python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
+version = "1.7.0"
+
+[package.dependencies]
+zipp = ">=0.5"
+
+[package.extras]
+docs = ["sphinx", "rst.linker"]
+testing = ["packaging", "pep517", "importlib-resources (>=1.3)"]
+
+[[package]]
+category = "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"
@@ -258,9 +299,10 @@ description = "A Python utility / library to sort Python imports."
 name = "isort"
 optional = false
 python-versions = ">=3.6,<4.0"
-version = "5.0.3"
+version = "5.3.2"
 
 [package.extras]
+colors = ["colorama (>=0.4.3,<0.5.0)"]
 pipfile_deprecated_finder = ["pipreqs", "requirementslib", "tomlkit (>=0.5.3)"]
 requirements_deprecated_finder = ["pipreqs", "pip-api"]
 
@@ -316,6 +358,11 @@ 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 +396,7 @@ 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 +436,7 @@ description = "A SQL query builder API for Python"
 name = "pypika"
 optional = false
 python-versions = "*"
-version = "0.37.15"
+version = "0.38.0"
 
 [[package]]
 category = "dev"
@@ -397,20 +444,25 @@ description = "pytest: simple powerful testing with Python"
 name = "pytest"
 optional = false
 python-versions = ">=3.5"
-version = "5.4.3"
+version = "6.0.1"
 
 [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]]
@@ -433,10 +485,25 @@ 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 = "3.2.0"
+
+[package.dependencies]
+pytest = ">=2.7"
+
+[package.extras]
+dev = ["pre-commit", "tox", "pytest-asyncio"]
 
 [[package]]
 category = "dev"
@@ -444,7 +511,7 @@ description = "pytest xdist plugin for distributed testing and loop-on-failing m
 name = "pytest-xdist"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
-version = "1.32.0"
+version = "1.34.0"
 
 [package.dependencies]
 execnet = ">=1.1"
@@ -469,7 +536,7 @@ 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"
@@ -501,11 +568,15 @@ description = "Manage dynamic plugins for Python applications"
 name = "stevedore"
 optional = false
 python-versions = ">=3.6"
-version = "2.0.1"
+version = "3.2.0"
 
 [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"
@@ -520,7 +591,7 @@ description = "Easy async ORM for python, built with relations in mind"
 name = "tortoise-orm"
 optional = false
 python-versions = "*"
-version = "0.16.13"
+version = "0.16.14"
 
 [package.dependencies]
 aiosqlite = ">=0.11.0"
@@ -549,18 +620,24 @@ version = "3.7.4.2"
 
 [[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 = "3.1.0"
+
+[package.extras]
+docs = ["sphinx", "jaraco.packaging (>=3.2)", "rst.linker (>=1.9)"]
+testing = ["jaraco.itertools", "func-timeout"]
 
 [extras]
 dbdrivers = ["aiomysql", "asyncpg"]
 
 [metadata]
-content-hash = "485702557f7b65db14e44d459fb1c985f56caf4b14857006ef96304d6516d976"
-python-versions = "^3.8"
+content-hash = "06f00778f783c4ad5b174a9c9ee80f4f0e38db9da9ff1012f09c7d306eaa0975"
+lock-version = "1.0"
+python-versions = "^3.7"
 
 [metadata.files]
 aiomysql = [
@@ -568,12 +645,12 @@ 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"},
+    {file = "aiosqlite-0.15.0-py3-none-any.whl", hash = "sha256:19b984b6702aed9f1c85c023f37296954547fc4030dae8e9d027b2a930bed78b"},
+    {file = "aiosqlite-0.15.0.tar.gz", hash = "sha256:a2884793f4dc8f2798d90e1dfecb2b56a6d479cf039f7ec52356a7fd5f3bdc57"},
 ]
 anyio = [
-    {file = "anyio-1.3.1-py3-none-any.whl", hash = "sha256:f21b4fafeec1b7db81e09a907e44e374a1e39718d782a488fdfcdcf949c8950c"},
-    {file = "anyio-1.3.1.tar.gz", hash = "sha256:a46bb2b7743455434afd9adea848a3c4e0b7321aee3e9d08844b11d348d3b5a0"},
+    {file = "anyio-1.4.0-py3-none-any.whl", hash = "sha256:9ee67e8131853f42957e214d4531cee6f2b66dda164a298d9686a768b7161a4f"},
+    {file = "anyio-1.4.0.tar.gz", hash = "sha256:95f60964fc4583f3f226f8dc275dfb02aefe7b39b85a999c6d14f4ec5323c1d8"},
 ]
 apipkg = [
     {file = "apipkg-1.5-py2.py3-none-any.whl", hash = "sha256:58587dd4dc3daefad0487f6d9ae32b4542b185e1c36db6993290e7c41ca2b47c"},
@@ -630,34 +707,34 @@ black = [
     {file = "black-19.10b0.tar.gz", hash = "sha256:c2edb73a08e9e0e6f65a0e6af18b059b8b1cdd5bef997d7a0b181df93dc81539"},
 ]
 cffi = [
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+    {file = "regex-2020.7.14-cp37-cp37m-win32.whl", hash = "sha256:46bac5ca10fb748d6c55843a931855e2727a7a22584f302dd9bb1506e69f83f6"},
+    {file = "regex-2020.7.14-cp37-cp37m-win_amd64.whl", hash = "sha256:0dc64ee3f33cd7899f79a8d788abfbec168410be356ed9bd30bbd3f0a23a7204"},
+    {file = "regex-2020.7.14-cp38-cp38-manylinux1_i686.whl", hash = "sha256:5ea81ea3dbd6767873c611687141ec7b06ed8bab43f68fad5b7be184a920dc99"},
+    {file = "regex-2020.7.14-cp38-cp38-manylinux1_x86_64.whl", hash = "sha256:bbb332d45b32df41200380fff14712cb6093b61bd142272a10b16778c418e98e"},
+    {file = "regex-2020.7.14-cp38-cp38-manylinux2010_i686.whl", hash = "sha256:c11d6033115dc4887c456565303f540c44197f4fc1a2bfb192224a301534888e"},
+    {file = "regex-2020.7.14-cp38-cp38-win32.whl", hash = "sha256:d6cff2276e502b86a25fd10c2a96973fdb45c7a977dca2138d661417f3728341"},
+    {file = "regex-2020.7.14-cp38-cp38-win_amd64.whl", hash = "sha256:7a2dd66d2d4df34fa82c9dc85657c5e019b87932019947faece7983f2089a840"},
+    {file = "regex-2020.7.14.tar.gz", hash = "sha256:3a3af27a8d23143c49a3420efe5b3f8cf1a48c6fc8bc6856b03f638abc1833bb"},
 ]
 six = [
     {file = "six-1.15.0-py2.py3-none-any.whl", hash = "sha256:8b74bedcbbbaca38ff6d7491d76f2b06b3592611af620f8426e82dddb04a5ced"},
@@ -848,15 +940,15 @@ sniffio = [
     {file = "sniffio-1.1.0.tar.gz", hash = "sha256:8e3810100f69fe0edd463d02ad407112542a11ffdc29f67db2bf3771afb87a21"},
 ]
 stevedore = [
-    {file = "stevedore-2.0.1-py3-none-any.whl", hash = "sha256:c4724f8d7b8f6be42130663855d01a9c2414d6046055b5a65ab58a0e38637688"},
-    {file = "stevedore-2.0.1.tar.gz", hash = "sha256:609912b87df5ad338ff8e44d13eaad4f4170a65b79ae9cb0aa5632598994a1b7"},
+    {file = "stevedore-3.2.0-py3-none-any.whl", hash = "sha256:c8f4f0ebbc394e52ddf49de8bcc3cf8ad2b4425ebac494106bbc5e3661ac7633"},
+    {file = "stevedore-3.2.0.tar.gz", hash = "sha256:38791aa5bed922b0a844513c5f9ed37774b68edc609e5ab8ab8d8fe0ce4315e5"},
 ]
 toml = [
     {file = "toml-0.10.1-py2.py3-none-any.whl", hash = "sha256:bda89d5935c2eac546d648028b9901107a595863cb36bae0c73ac804a9b4ce88"},
     {file = "toml-0.10.1.tar.gz", hash = "sha256:926b612be1e5ce0634a2ca03470f95169cf16f939018233a670519cb4ac58b0f"},
 ]
 tortoise-orm = [
-    {file = "tortoise-orm-0.16.13.tar.gz", hash = "sha256:5f6fa4430a570172cb49517a97d45338dbfb1a690ed707030467efd154e67855"},
+    {file = "tortoise-orm-0.16.14.tar.gz", hash = "sha256:d6ffd4f4cd46d469fa946ca5309768f381640b65d5f5c9e848fb9b50185febee"},
 ]
 typed-ast = [
     {file = "typed_ast-1.4.1-cp35-cp35m-manylinux1_i686.whl", hash = "sha256:73d785a950fc82dd2a25897d525d003f6378d1cb23ab305578394694202a58c3"},
@@ -886,7 +978,7 @@ typing-extensions = [
     {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"},
 ]
-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-3.1.0-py3-none-any.whl", hash = "sha256:aa36550ff0c0b7ef7fa639055d797116ee891440eac1a56f378e2d3179e0320b"},
+    {file = "zipp-3.1.0.tar.gz", hash = "sha256:c599e4d75c98f6798c509911d08a22e6c021d074469042177c8c86fb92eefd96"},
 ]

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "aerich"
-version = "0.2.1"
+version = "0.2.3"
 description = "A database migrations tool for Tortoise ORM."
 authors = ["long2ice <long2ice@gmail.com>"]
 license = "Apache-2.0"
@@ -12,10 +12,10 @@ 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 = "*"
 pydantic = "*"
@@ -30,6 +30,7 @@ pytest = "*"
 pytest-xdist = "*"
 pytest-asyncio = "*"
 bandit = "*"
+pytest-mock = "*"
 
 [tool.poetry.extras]
 dbdrivers = ["aiomysql", "asyncpg"]

tests/diff_models.py

@@ -22,7 +22,7 @@ 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)
     is_active = fields.BooleanField(default=True, description="Is Active")

tests/test_ddl.py

@@ -146,6 +146,12 @@ 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 +161,16 @@ 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 +191,7 @@ 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"'

tests/test_migrate.py

@@ -1,6 +1,7 @@
 from tortoise import Tortoise
 
 from aerich.ddl.mysql import MysqlDDL
+from aerich.ddl.postgres import PostgresDDL
 from aerich.migrate import Migrate
 
 
@@ -19,6 +20,15 @@ def test_migrate():
             "ALTER TABLE `category` DROP COLUMN `name`",
             "ALTER TABLE `user` DROP INDEX `uid_user_usernam_9987ab`",
         ]
+    elif isinstance(Migrate.ddl, PostgresDDL):
+        assert Migrate.upgrade_operators == [
+            'ALTER TABLE "category" ADD "name" VARCHAR(200) NOT NULL',
+            'ALTER TABLE "user" ADD CONSTRAINT "uid_user_usernam_9987ab" UNIQUE ("username")',
+        ]
+        assert Migrate.downgrade_operators == [
+            'ALTER TABLE "category" DROP COLUMN "name"',
+            'ALTER TABLE "user" DROP CONSTRAINT "uid_user_usernam_9987ab"',
+        ]
     else:
         assert Migrate.upgrade_operators == [
             'ALTER TABLE "category" ADD "name" VARCHAR(200) NOT NULL',
@@ -28,3 +38,24 @@ def test_migrate():
             'ALTER TABLE "category" DROP COLUMN "name"',
             'ALTER TABLE "user" DROP INDEX "uid_user_usernam_9987ab"',
         ]
+
+
+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",
+    ]