本文整理汇总了Python中sqlalchemy.sql.operators.json_path_getitem_op方法的典型用法代码示例。如果您正苦于以下问题：Python operators.json_path_getitem_op方法的具体用法？Python operators.json_path_getitem_op怎么用？Python operators.json_path_getitem_op使用的例子？那么恭喜您, 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.sql.operators的用法示例。
在下文中一共展示了operators.json_path_getitem_op方法的3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: _setup_getitem
# 需要导入模块: from sqlalchemy.sql import operators [as 别名]
# 或者: from sqlalchemy.sql.operators import json_path_getitem_op [as 别名]
def _setup_getitem(self, default_comparator, index):
if not isinstance(index, util.string_types) and \
isinstance(index, collections.Sequence):
index = default_comparator._check_literal(
self.expr, operators.json_path_getitem_op,
index, bindparam_type=JSON.JSONPathType
)
operator = operators.json_path_getitem_op
else:
index = default_comparator._check_literal(
self.expr, operators.json_getitem_op,
index, bindparam_type=JSON.JSONIndexType
)
operator = operators.json_getitem_op
return operator, index, self.type 示例2: _setup_getitem
# 需要导入模块: from sqlalchemy.sql import operators [as 别名]
# 或者: from sqlalchemy.sql.operators import json_path_getitem_op [as 别名]
def _setup_getitem(self, index):
if not isinstance(index, util.string_types) and isinstance(
index, compat.collections_abc.Sequence
):
index = coercions.expect(
roles.BinaryElementRole,
index,
expr=self.expr,
operator=operators.json_path_getitem_op,
bindparam_type=JSON.JSONPathType,
)
operator = operators.json_path_getitem_op
else:
index = coercions.expect(
roles.BinaryElementRole,
index,
expr=self.expr,
operator=operators.json_getitem_op,
bindparam_type=JSON.JSONIndexType,
)
operator = operators.json_getitem_op
return operator, index, self.type 示例3: _binary_w_type
# 需要导入模块: from sqlalchemy.sql import operators [as 别名]
# 或者: from sqlalchemy.sql.operators import json_path_getitem_op [as 别名]
def _binary_w_type(self, typ, method_name):
if not isinstance(
self.expr, elements.BinaryExpression
) or self.expr.operator not in (
operators.json_getitem_op,
operators.json_path_getitem_op,
):
raise exc.InvalidRequestError(
"The JSON cast operator JSON.%s() only works with a JSON "
"index expression e.g. col['q'].%s()"
% (method_name, method_name)
)
expr = self.expr._clone()
expr.type = typ
return expr