def drop_table(self):
"""
删除当前实例对应的数据库表
Raises:
exceptions.DatabaseError - 数据库出错时引发此异常
"""
try:
schema_manager = peewee.SchemaManager(self._model)
schema_manager.drop_table()
except AttributeError as e:
self._handle_exception("Can not call drop table in base model!", e)
except Exception as e:
self._handle_exception("DB error in method drop table!", e)
def truncate_table(self):
"""
清空当前实例对应的数据库表
Raises:
exceptions.DatabaseError - 数据库出错时引发此异常
"""
try:
schema_manager = peewee.SchemaManager(self._model)
schema_manager.truncate_table()
except AttributeError:
Logger().error("Can not call truncate table in base model!")
raise exceptions.DatabaseError
except Exception as e:
Logger().error("Error in method truncate table!", exc_info=e)
raise exceptions.DatabaseError
def create_foreign_key(field):
manager = pw.SchemaManager(field.model)
ctx = manager._create_foreign_key(field)
return [(''.join(ctx._sql), ctx._values)]
def create_index(model, fields, unique):
manager = pw.SchemaManager(model)
ctx = manager._create_index(pw.ModelIndex(model, fields,
unique=unique))
return [(''.join(ctx._sql), ctx._values)]
def create_table(model):
manager = pw.SchemaManager(model)
ctx = manager._create_table()
return [(''.join(ctx._sql), ctx._values)]
