pub/aerich
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

WIP

Browse Source
This commit is contained in:
long2ice
2021-02-01 16:54:35 +08:00
parent 36f84702b7
commit f443dc68db
7 changed files with 81 additions and 104 deletions
Download Patch File Download Diff File Expand all files Collapse all files

103
aerich/migrate.py
View File

@@ -3,7 +3,7 @@ from datetime import datetime
from pathlib import Path
from typing import Dict, List, Optional, Tuple, Type
from dictdiffer import diff
import click
from tortoise import (
BackwardFKRelation,
BackwardOneToOneRelation,
@@ -204,30 +204,49 @@ class Migrate:
:param upgrade:
:return:
"""
for change in diff(old_model_describe, new_model_describe):
action, field_type, fields = change
is_pk = field_type == "pk_field"
if action == "add":
for field in fields:
_, field_describe = field
cls._add_operator(
cls._add_field(
cls._get_model(new_model_describe.get("name").split(".")[1]),
field_describe,
is_pk,
),
upgrade,
)
elif action == "remove":
for field in fields:
_, field_describe = field
cls._add_operator(
cls._remove_field(
cls._get_model(new_model_describe.get("name").split(".")[1]),
field_describe,
),
upgrade,
)
old_unique_together = old_model_describe.get('unique_together')
new_unique_together = new_model_describe.get('unique_together')
old_data_fields = old_model_describe.get('data_fields')
new_data_fields = new_model_describe.get('data_fields')
old_data_fields_name = list(map(lambda x: x.get('name'), old_data_fields))
new_data_fields_name = list(map(lambda x: x.get('name'), new_data_fields))
model = cls._get_model(new_model_describe.get('name').split('.')[1])
# add fields
for new_data_field_name in set(new_data_fields_name).difference(set(old_data_fields_name)):
cls._add_operator(
cls._add_field(model, next(filter(lambda x: x.get('name') == new_data_field_name, new_data_fields))),
upgrade)
# remove fields
for old_data_field_name in set(old_data_fields_name).difference(set(new_data_fields_name)):
cls._add_operator(
cls._remove_field(model, next(filter(lambda x: x.get('name') == old_data_field_name, old_data_fields))),
upgrade)
old_fk_fields = old_model_describe.get('fk_fields')
new_fk_fields = new_model_describe.get('fk_fields')
old_fk_fields_name = list(map(lambda x: x.get('name'), old_fk_fields))
new_fk_fields_name = list(map(lambda x: x.get('name'), new_fk_fields))
# add fk
for new_fk_field_name in set(new_fk_fields_name).difference(set(old_fk_fields_name)):
fk_field = next(filter(lambda x: x.get('name') == new_fk_field_name, new_fk_fields))
cls._add_operator(
cls._add_fk(model, fk_field,
next(filter(lambda x: x.get('db_column') == fk_field.get('raw_field'), new_data_fields))),
upgrade)
# drop fk
for old_fk_field_name in set(old_fk_fields_name).difference(set(new_fk_fields_name)):
old_fk_field = next(filter(lambda x: x.get('name') == old_fk_field_name, old_fk_fields))
cls._add_operator(
cls._drop_fk(
model, old_fk_field,
next(filter(lambda x: x.get('db_column') == old_fk_field.get('raw_field'), old_data_fields))),
upgrade)
@classmethod
def _resolve_fk_fields_name(cls, model: Type[Model], fields_name: Tuple[str]):
@@ -273,12 +292,8 @@ class Migrate:
return isinstance(field, (BackwardFKRelation, BackwardOneToOneRelation))
@classmethod
def _add_field(cls, model: Type[Model], field: dict, is_pk: bool = False):
if field.get("field_type") == "ForeignKeyFieldInstance":
return cls.ddl.add_fk(model, field)
if field.get("field_type") == "ManyToManyFieldInstance":
return cls.ddl.create_m2m_table(model, field)
return cls.ddl.add_column(model, field, is_pk)
def _add_field(cls, model: Type[Model], field_describe: dict, is_pk: bool = False):
return cls.ddl.add_column(model, field_describe, is_pk)
@classmethod
def _alter_default(cls, model: Type[Model], field: Field):
@@ -297,16 +312,12 @@ class Migrate:
return cls.ddl.modify_column(model, field)
@classmethod
def _drop_fk(cls, model: Type[Model], field: ForeignKeyFieldInstance):
return cls.ddl.drop_fk(model, field)
def _drop_fk(cls, model: Type[Model], field_describe: dict, field_describe_target: dict):
return cls.ddl.drop_fk(model, field_describe, field_describe_target)
@classmethod
def _remove_field(cls, model: Type[Model], field: Field):
if isinstance(field, ForeignKeyFieldInstance):
return cls.ddl.drop_fk(model, field)
if isinstance(field, ManyToManyFieldInstance):
return cls.ddl.drop_m2m(field)
return cls.ddl.drop_column(model, field.model_field_name)
def _remove_field(cls, model: Type[Model], field_describe: dict):
return cls.ddl.drop_column(model, field_describe)
@classmethod
def _rename_field(cls, model: Type[Model], old_field: Field, new_field: Field):
@@ -322,24 +333,14 @@ class Migrate:
)
@classmethod
def _add_fk(cls, model: Type[Model], field: ForeignKeyFieldInstance):
def _add_fk(cls, model: Type[Model], field_describe: dict, field_describe_target: dict):
"""
add fk
:param model:
:param field:
:return:
"""
return cls.ddl.add_fk(model, field)
@classmethod
def _remove_fk(cls, model: Type[Model], field: ForeignKeyFieldInstance):
"""
drop fk
:param model:
:param field:
:return:
"""
return cls.ddl.drop_fk(model, field)
return cls.ddl.add_fk(model, field_describe, field_describe_target)
@classmethod
def _merge_operators(cls):