associations
Rails 3.1 associations?
I have a Rails 3.1.1 application with the following models: Company Member The two models have the following associations:[详细]
2023-04-13 02:55 分类：问答Rails Associations Not working and not recognizing classes
I have a weird bug that just popped up with my rails app that I cannot figure out. I recently added a new association to an existing Model and now my previous associations do not want to work properly[详细]
2023-04-13 02:33 分类：问答Nhibernate one-to-many association
I have such a simple model: public abstract class Entity { public virtual Guid Id { get; protected set;}[详细]
2023-04-13 00:17 分类：问答How can I do complex entity associations queries in doctrine 2? (virtual entity)
Let\'s say I have a blog application. The author can add multiple images to a post either by giving a link to a url of an existing image on the web, or upload a new image.[详细]
2023-04-12 13:53 分类：问答nested attributes not saving the user_id in join table
Admin Main controller: def new @admin = Admin.new @invitation = @admin.invitations.build @admi.user_admin_relationships.build[详细]
2023-04-12 07:04 分类：问答Optional or Conditional model associations in Rails
I have a user model. Users can have 1 of 3 roles: role1, role2, role3. This is represented by a \'role\' column in the user model.[详细]
2023-04-12 03:41 分类：问答Implementing ActiveRecord-like associations for an API wrapper
I recently wrote ParseResource, which is a Ruby API wrapper for Parse.com\'s REST api. Here\'s a some basic usage:[详细]
2023-04-12 00:50 分类：问答C Sharp Object creating and referencing only 1 object in another class
I need to implement 1..* and 1..1 relationships in a store scenario application.(Classes: Member, Order, OrderLine, Product, Program, User) How do i go about a 1 user only having 1 Order that can have[详细]
2023-04-11 13:19 分类：问答overriding as_json for as_json(:includes => :association)
I have two classes, Foo and Bar. Foo has_many Bars. Bar is actually the superclass of several classes that are sharing a STI table.[详细]
2023-04-11 10:12 分类：问答How do I search through associations using Squeel in Rails 3?
I am trying to search through the model contacts associated by user_id but list the companies. @companies_user = Company.joins{contacts}.where{:contact => {user_id => current_user}}.uniq[详细]
2023-04-11 06:20 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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