object-relationships
EF CF Mapping complex relationship with Fluent API
I am trying to create the following constraint in my model so that a Tag object\'s TagType is valid. A valid TagType is one whose OperatingCompanyId 开发者_如何学Pythonmatches the Tag\'s Website\'s Op[详细]
2023-03-20 10:40 分类：问答Django model class that can either have one relationship or another?
To give you an idea of the problem I\'m trying to solve I\'ll use an example. The issue is that there can be multiple possible relationships between classes, and how to represent this in the models fi[详细]
2023-02-24 13:01 分类：问答creating classes to reflect my database model
I\'m trying to write my first object oriented project in php, i\'ve done oop b开发者_StackOverflow中文版efore but it was a while back and it wasn\'t in web dev with a database model so it\'s a little[详细]
2023-02-08 16:34 分类：问答CakePHP - Custom hasOne Object Association - Using a Join Table instead of in-table foreign keys?
In CakePHP, I\'m trying to build a $hasOne relationship, but I can\'t add a foreign key to the tables (for legacy reasons).Is there any way I can create a join table (object1_object2) and link them to[详细]
2023-01-17 08:17 分类：问答JPA - Entity design problem
I am developing a Java Desktop Appli开发者_JAVA百科cation and using JPA for persistence. I have a problem mentioned below:[详细]
2022-12-25 03:46 分类：问答54度董酒多少钱啊？国密董酒54度多少价格？
秉烛思 开发者_高级运维2022-06-29 10:17 亲啊 你知不知道行情啊？国密董酒54度 好的差不多600多还是促销的时候..你那200块 能买啥？就是普通的一般酒..[详细]
2022-12-16 15:05 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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