< ...>不逆向关系 [英] The inverse relationship for <...> does not reciprocate an inverse relationship

问题描述

我有具有以下关系的表A：

I have the table A with the following relationships:

Relationship Destination Inverse
input        B           state
output       B           state

并且表B具有以下关系：

And the table B with the following relationship:

Relationship Destination Inverse
state        A           input

我得到了警告：

state.input的反向关系不会反向关系

The inverse relationship for state.input does not reciprocate an inverse relationship

有正确的方法如何解决警告？

Is there a right way how can I fix the warning?

推荐答案

对于不同的关系，您不能具有相同的关系名称 state 。

You cannot have the same relationship name state for different relationships on the other side.

将状态关系重命名为 inputState 和 outputState 。

Either rename the state relationships to inputState and outputState.

或添加一个管理此关系的实体，并使用输入/输出属性跟踪关系类型。

Or add an additional entity that manages this relationship and keeps track of the relationship type with an input/output attribute.

虽然我不推荐最后一个解决方案（太复杂），但如果 state 关系 B 应该是输入/输出不可知的。

Although I would not recommend the last solution (too complicated), you might need it if the state relationship of B should be input/output agnostic.

A (inOut) <----->> (as) State (b) <<--------> (state) B

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