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feat: add index inspect

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This commit is contained in:
long2ice
2022-04-05 19:38:08 +08:00
parent 801dde15be
commit 0b01fa38d8
5 changed files with 50 additions and 14 deletions
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2
aerich/__init__.py
View File

@@ -108,7 +108,7 @@ class Command:
ret.append(version)
return ret
async def inspectdb(self, tables: List[str]) -> str:
async def inspectdb(self, tables: List[str] = None) -> str:
connection = get_app_connection(self.tortoise_config, self.app)
dialect = connection.schema_generator.DIALECT
if dialect == "mysql":

23
aerich/inspect/__init__.py
View File

@@ -12,17 +12,22 @@ class Column(BaseModel):
comment: Optional[str]
pk: bool
unique: bool
index: bool
length: Optional[int]
extra: Optional[str]
decimal_places: Optional[int]
max_digits: Optional[int]
def translate(self) -> dict:
comment = default = length = unique = null = pk = ""
comment = default = length = index = null = pk = ""
if self.pk:
pk = "pk=True, "
else:
if self.unique:
unique = "unique=True, "
index = "unique=True, "
else:
if self.index:
index = "index=True, "
if self.data_type in ["varchar", "VARCHAR"]:
length = f"max_length={self.length}, "
if self.data_type == "decimal":
@@ -53,7 +58,7 @@ class Column(BaseModel):
return {
"name": self.name,
"pk": pk,
"unique": unique,
"index": index,
"null": null,
"default": default,
"length": length,
@@ -99,7 +104,7 @@ class Inspect:
@classmethod
def decimal_field(cls, **kwargs) -> str:
return "{name} = fields.DecimalField({pk}{unique}{length}{null}{default}{comment})".format(
return "{name} = fields.DecimalField({pk}{index}{length}{null}{default}{comment})".format(
**kwargs
)
@@ -125,21 +130,21 @@ class Inspect:
@classmethod
def char_field(cls, **kwargs) -> str:
return "{name} = fields.CharField({pk}{unique}{length}{null}{default}{comment})".format(
return "{name} = fields.CharField({pk}{index}{length}{null}{default}{comment})".format(
**kwargs
)
@classmethod
def int_field(cls, **kwargs) -> str:
return "{name} = fields.IntField({pk}{unique}{comment})".format(**kwargs)
return "{name} = fields.IntField({pk}{index}{comment})".format(**kwargs)
@classmethod
def smallint_field(cls, **kwargs) -> str:
return "{name} = fields.SmallIntField({pk}{unique}{comment})".format(**kwargs)
return "{name} = fields.SmallIntField({pk}{index}{comment})".format(**kwargs)
@classmethod
def bigint_field(cls, **kwargs) -> str:
return "{name} = fields.BigIntField({pk}{unique}{default}{comment})".format(**kwargs)
return "{name} = fields.BigIntField({pk}{index}{default}{comment})".format(**kwargs)
@classmethod
def bool_field(cls, **kwargs) -> str:
@@ -147,7 +152,7 @@ class Inspect:
@classmethod
def uuid_field(cls, **kwargs) -> str:
return "{name} = fields.UUIDField({pk}{unique}{default}{comment})".format(**kwargs)
return "{name} = fields.UUIDField({pk}{index}{default}{comment})".format(**kwargs)
@classmethod
def json_field(cls, **kwargs) -> str:

20
aerich/inspect/mysql.py
View File

@@ -30,9 +30,25 @@ class InspectMySQL(Inspect):
async def get_columns(self, table: str) -> List[Column]:
columns = []
sql = "select * from information_schema.columns where TABLE_SCHEMA=%s and TABLE_NAME=%s"
sql = """select c.*, s.NON_UNIQUE, s.INDEX_NAME
from information_schema.COLUMNS c
left join information_schema.STATISTICS s on c.TABLE_NAME = s.TABLE_NAME
and c.TABLE_SCHEMA = s.TABLE_SCHEMA
and c.COLUMN_NAME = s.COLUMN_NAME
where c.TABLE_SCHEMA = %s
and c.TABLE_NAME = %s"""
ret = await self.conn.execute_query_dict(sql, [self.database, table])
for row in ret:
non_unique = row["NON_UNIQUE"]
if non_unique is None:
unique = False
else:
unique = not non_unique
index_name = row["INDEX_NAME"]
if index_name is None:
index = False
else:
index = row["INDEX_NAME"] != "PRIMARY"
columns.append(
Column(
name=row["COLUMN_NAME"],
@@ -43,6 +59,8 @@ class InspectMySQL(Inspect):
comment=row["COLUMN_COMMENT"],
unique=row["COLUMN_KEY"] == "UNI",
extra=row["EXTRA"],
unque=unique,
index=index,
length=row["CHARACTER_MAXIMUM_LENGTH"],
max_digits=row["NUMERIC_PRECISION"],
decimal_places=row["NUMERIC_SCALE"],

3
aerich/inspect/postgres.py
View File

@@ -54,7 +54,7 @@ from information_schema.constraint_column_usage const
right join information_schema.columns c using (column_name, table_catalog, table_schema, table_name)
where c.table_catalog = $1
and c.table_name = $2
and c.table_schema = $3;"""
and c.table_schema = $3"""
ret = await self.conn.execute_query_dict(sql, [self.database, table, self.schema])
for row in ret:
columns.append(
@@ -69,6 +69,7 @@ where c.table_catalog = $1
comment=row["column_comment"],
pk=row["column_key"] == "PRIMARY KEY",
unique=False, # can't get this simply
index=False, # can't get this simply
)
)
return columns

14
aerich/inspect/sqlite.py
View File

@@ -25,6 +25,7 @@ class InspectSQLite(Inspect):
columns = []
sql = f"PRAGMA table_info({table})"
ret = await self.conn.execute_query_dict(sql)
columns_index = await self._get_columns_index(table)
for row in ret:
try:
length = row["type"].split("(")[1].split(")")[0]
@@ -38,11 +39,22 @@ class InspectSQLite(Inspect):
default=row["dflt_value"],
length=length,
pk=row["pk"] == 1,
unique=False, # can't get this simply
unique=columns_index.get(row["name"]) == "unique",
index=columns_index.get(row["name"]) == "index",
)
)
return columns
async def _get_columns_index(self, table: str):
sql = f"PRAGMA index_list ({table})"
indexes = await self.conn.execute_query_dict(sql)
ret = {}
for index in indexes:
sql = f"PRAGMA index_info({index['name']})"
index_info = (await self.conn.execute_query_dict(sql))[0]
ret[index_info["name"]] = "unique" if index["unique"] else "index"
return ret
async def get_all_tables(self) -> List[str]:
sql = "select tbl_name from sqlite_master where type='table' and name!='sqlite_sequence'"
ret = await self.conn.execute_query_dict(sql)