本文整理汇总了Python中sqlalchemy.orm.mapper.polymorphic_on方法的典型用法代码示例。如果您正苦于以下问题：Python mapper.polymorphic_on方法的具体用法？Python mapper.polymorphic_on怎么用？Python mapper.polymorphic_on使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类sqlalchemy.orm.mapper的用法示例。
在下文中一共展示了mapper.polymorphic_on方法的8个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: __init__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __init__(self, entity, mapper, selectable, name,
with_polymorphic_mappers, polymorphic_on,
_base_alias, _use_mapper_path, adapt_on_names):
self.entity = entity
self.mapper = mapper
self.selectable = selectable
self.name = name
self.with_polymorphic_mappers = with_polymorphic_mappers
self.polymorphic_on = polymorphic_on
self._base_alias = _base_alias or self
self._use_mapper_path = _use_mapper_path
self._adapter = sql_util.ColumnAdapter(
selectable, equivalents=mapper._equivalent_columns,
adapt_on_names=adapt_on_names, anonymize_labels=True)
self._adapt_on_names = adapt_on_names
self._target = mapper.class_
for poly in self.with_polymorphic_mappers:
if poly is not mapper:
setattr(self.entity, poly.class_.__name__,
AliasedClass(poly.class_, selectable, base_alias=self,
adapt_on_names=adapt_on_names,
use_mapper_path=_use_mapper_path)) 示例2: __init__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __init__(self, entity, mapper, selectable, name,
with_polymorphic_mappers, polymorphic_on,
_base_alias, _use_mapper_path, adapt_on_names):
self.entity = entity
self.mapper = mapper
self.selectable = selectable
self.name = name
self.with_polymorphic_mappers = with_polymorphic_mappers
self.polymorphic_on = polymorphic_on
self._base_alias = _base_alias or self
self._use_mapper_path = _use_mapper_path
self._adapter = sql_util.ClauseAdapter(
selectable, equivalents=mapper._equivalent_columns,
adapt_on_names=adapt_on_names)
self._adapt_on_names = adapt_on_names
self._target = mapper.class_
for poly in self.with_polymorphic_mappers:
if poly is not mapper:
setattr(self.entity, poly.class_.__name__,
AliasedClass(poly.class_, selectable, base_alias=self,
adapt_on_names=adapt_on_names,
use_mapper_path=_use_mapper_path)) 示例3: __init__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __init__(self, entity, mapper, selectable, name,
with_polymorphic_mappers, polymorphic_on,
_base_alias, _use_mapper_path, adapt_on_names):
self.entity = entity
self.mapper = mapper
self.selectable = selectable
self.name = name
self.with_polymorphic_mappers = with_polymorphic_mappers
self.polymorphic_on = polymorphic_on
self._base_alias = _base_alias or self
self._use_mapper_path = _use_mapper_path
self._adapter = sql_util.ClauseAdapter(selectable,
equivalents=mapper._equivalent_columns,
adapt_on_names=adapt_on_names)
self._adapt_on_names = adapt_on_names
self._target = mapper.class_
for poly in self.with_polymorphic_mappers:
if poly is not mapper:
setattr(self.entity, poly.class_.__name__,
AliasedClass(poly.class_, selectable, base_alias=self,
adapt_on_names=adapt_on_names,
use_mapper_path=_use_mapper_path)) 示例4: __getstate__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __getstate__(self):
return {
'entity': self.entity,
'mapper': self.mapper,
'alias': self.selectable,
'name': self.name,
'adapt_on_names': self._adapt_on_names,
'with_polymorphic_mappers':
self.with_polymorphic_mappers,
'with_polymorphic_discriminator':
self.polymorphic_on,
'base_alias': self._base_alias,
'use_mapper_path': self._use_mapper_path
} 示例5: __init__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __init__(self, cls, alias=None,
name=None,
flat=False,
adapt_on_names=False,
# TODO: None for default here?
with_polymorphic_mappers=(),
with_polymorphic_discriminator=None,
base_alias=None,
use_mapper_path=False,
represents_outer_join=False):
mapper = _class_to_mapper(cls)
if alias is None:
alias = mapper._with_polymorphic_selectable.alias(
name=name, flat=flat)
self._aliased_insp = AliasedInsp(
self,
mapper,
alias,
name,
with_polymorphic_mappers
if with_polymorphic_mappers
else mapper.with_polymorphic_mappers,
with_polymorphic_discriminator
if with_polymorphic_discriminator is not None
else mapper.polymorphic_on,
base_alias,
use_mapper_path,
adapt_on_names,
represents_outer_join
)
self.__name__ = 'AliasedClass_%s' % mapper.class_.__name__ 示例6: __getstate__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __getstate__(self):
return {
'entity': self.entity,
'mapper': self.mapper,
'alias': self.selectable,
'name': self.name,
'adapt_on_names': self._adapt_on_names,
'with_polymorphic_mappers':
self.with_polymorphic_mappers,
'with_polymorphic_discriminator':
self.polymorphic_on,
'base_alias': self._base_alias,
'use_mapper_path': self._use_mapper_path,
'represents_outer_join': self.represents_outer_join
} 示例7: __init__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __init__(
self,
mapped_class_or_ac,
alias=None,
name=None,
flat=False,
adapt_on_names=False,
# TODO: None for default here?
with_polymorphic_mappers=(),
with_polymorphic_discriminator=None,
base_alias=None,
use_mapper_path=False,
represents_outer_join=False,
):
insp = inspection.inspect(mapped_class_or_ac)
mapper = insp.mapper
if alias is None:
alias = mapper._with_polymorphic_selectable._anonymous_fromclause(
name=name, flat=flat
)
self._aliased_insp = AliasedInsp(
self,
insp,
alias,
name,
with_polymorphic_mappers
if with_polymorphic_mappers
else mapper.with_polymorphic_mappers,
with_polymorphic_discriminator
if with_polymorphic_discriminator is not None
else mapper.polymorphic_on,
base_alias,
use_mapper_path,
adapt_on_names,
represents_outer_join,
)
self.__name__ = "AliasedClass_%s" % mapper.class_.__name__ 示例8: __getstate__
# 需要导入模块: from sqlalchemy.orm import mapper [as 别名]
# 或者: from sqlalchemy.orm.mapper import polymorphic_on [as 别名]
def __getstate__(self):
return {
"entity": self.entity,
"mapper": self.mapper,
"alias": self.selectable,
"name": self.name,
"adapt_on_names": self._adapt_on_names,
"with_polymorphic_mappers": self.with_polymorphic_mappers,
"with_polymorphic_discriminator": self.polymorphic_on,
"base_alias": self._base_alias(),
"use_mapper_path": self._use_mapper_path,
"represents_outer_join": self.represents_outer_join,
}