belongs-to

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How do I force ActiveRecord to load a belongs_to-has_one relation through a JOIN instead of 2 queries?

I have the following models: User < ActiveRecord::Base belongs_to :person end Person < ActiveRecord::Base[详细]

2023-04-12 20:22 分类：问答
How to know if a number belongs to a set in PHP?

I\'ll give an example, it\'s will be more straight to the point : I\'m working with coordinates and I want to filter the coordinates that do not belong to a set around the picked coordinate. Here for[详细]

2023-04-12 08:52 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
How to save objects in list without unique ID (belongsTo, hasMany)

When I have collection, where each object is unique but they belong to some parentId, how should I store it?[详细]

2023-04-08 20:04 分类：问答
Rails linked tables belongs_to or has_many not working

I have three tables User, User_types and Purchases. user:idetc user_purchase_types: id, typename, user_id[详细]

2023-04-08 18:50 分类：问答
activescaffold belongs_to relationship giving routing error

I am using the following: Rails 3.0.3 Vhochstein\'s Fork for Activescaffold rake 0.9.0 ruby 1.9.2 I have a model called component which has a belongs_to relationship with category. This was modelled[详细]

2023-04-06 04:52 分类：问答
CakePHP - Relationship Question - Posts.Child belongsTo User, How to define?

Below is a posts model, and as you can see I have a belongsTo relationship on each post, so that the user details are also retrieved with the post.[详细]

2023-03-26 10:52 分类：问答
Form_For New Related Model

So in my app I have a Person model which has_many Descriptions. I now need a form on each person\'s show page for to add a new description for that person. So far I hav开发者_运维百科e the following f[详细]

2023-03-26 03:03 分类：问答
Undefined Method 'Match' when using a :belongs_to association

I have a :belongs_to association defined on model Brand as follows: belongs_to:loyalty_coupon, :class_name => Coupon, :foreign_key => :loyalty_coupon_id[详细]

2023-03-23 13:20 分类：问答
inherited_resources and multiple belongs_to without nesting

Let\'s get down to brass tacks. Rails: 2.3.11 I have a controller using inherited_resources t开发者_Go百科o reference two separate and non-nested resources.[详细]

2023-03-22 00:42 分类：问答