many-to-many

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WCF and EF many to many getting duplicates

Using the model above, I am trying to save a new PamNewsMessage and add Tags to it then save it to the DB. However, after trying many different combinations of adding objects and saving, I still hav[详细]

2023-04-05 01:33 分类：问答
How do I make a shopping list from multiple recipes in an SQL database?

I\'m working on using a recipe database in SQLw, 开发者_Go百科like the one in this question (which has helped a lot already) Structuring a recipe database , to combine the ingredients of several user[详细]

2023-04-04 22:25 分类：问答
How to edit m2m in Django via ModelForm

I have 2 models: class Case(models.Model): Priority = ( (\'Blocker\', \'Blocker\'), (\'High\', \'High\'),[详细]

2023-04-04 20:53 分类：问答
UnsupportedOperationException merge-saving many-to-many relation with hibernate and JPA

I\'ve set up a simple many-to-many relationship account : role with Hibernate but when I try to save an account in a unit test after it has had its role added I get an UnsupportedOperationException:[详细]

2023-04-04 20:15 分类：问答
Select all users with one role and one role only - many 2 many relationship

I have a page in my admin area where I want to ban users, but I only want to allow the ban of users with one role, that being user. Here\'s some sample data[详细]

2023-04-04 16:19 分类：问答
SQLAlchemy ManyToMany secondary table with additional fields

I have 3 tables: User, Community, community_members (for relationship many2many of users and community).[详细]

2023-04-04 16:16 分类：问答
Django query to get all ads whose keyword sets are contained by a search string

I am trying to implement an advertising system in Django.My model for ads is as follows: class Ad(models.Model):[详细]

2023-04-04 10:30 分类：问答
Zend Framework single page form dealing with many to many relationships

I have a database that has a scenario where there is a many to many relationship between two tables (with a third \'associative\' table between them):[详细]

2023-04-03 12:38 分类：问答
Inserting into MySQL Database with many-to-many relationship using C#

I have created the following tables to fill my data using C# and MySQL. SCIENTIST -----------------------[详细]

2023-04-03 11:25 分类：问答
Values in Many-to-Many field not getting selected when editing an object in a custom(Non-admin) Django view

We have a django-model containing a many-to-many field. We use the same form to add/edit objects. When an existing object is loaded for editing all fields have values associated with them except the M[详细]

2023-04-03 10:03 分类：问答