我想为一个'模型定义一个特定的架构。使用flask-sqlalchemy。在sqlalchemy中创建表对象时,它有一个参数可以传递模式名称。
我如何在flask-sqlalchemy中执行此操作?
答案 0 :(得分:40)
定义模型类时使用:
__table_args__ = {"schema":"schema_name"}
也许它会拯救别人一些狩猎。
答案 1 :(得分:2)
供将来参考:
db = flask.ext.sqlalchemy.SQLAlchemy(app)
app.config['SQLALCHEMY_DATABASE_URI'] = 'your_default_schema_db_uri'
app.config['SQLALCHEMY_BINDS'] = {'other_schema': 'your_other_db_uri'}
class TableA(db.Model):
# This belongs to Default schema, it doesn't need specify __bind_key__
...
class TableB(db.Model):
# This belongs to other_schema
__bind_key__ = 'other_schema'
...
答案 2 :(得分:0)
这就是我的做法,但我也在寻找更好的方法-
db = flask.ext.sqlalchemy.SQLAlchemy(app)
app.config['SQLALCHEMY_DATABASE_URI'] = 'your_default_schema_db_uri'
class Entity():
__table_args__ = {
'schema': 'schema_name'
}
# common columns below
class TableA(Entity, db.Model):
# This belongs to Default schema, it doesn't need specify __bind_key__
__table_args__ = {'schema' : Entity.__table_args__["schema"],
'comment': 'TableA'}
class TableB(Entity, db.Model):
# This belongs to other_schema
__table_args__ = {'schema' : Entity.__table_args__["schema"],
'comment': 'TableA'}