associations

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Rails: How to use a belongs_to association for referencing in addition to a has_many association?

Following set-up: A user can have many addresses, but at least one of them is the main address. A foreign key in the user table should be used as a pointer to the main address record.[详细]

2023-03-20 03:30 分类：问答
Rails 3 Meta_Search Multi-level associations

I have the following classes class BusinessLocation has_many :campaigns end My campaigns class as an attribute called event_return_rate.I am using meta_search\'s sort_link url helper to sort a lis[详细]

2023-03-19 11:38 分类：问答
Retrieving a Movie's Showtimes grouped by Theater: Movie->Showtimes<-Theater in CakePHP

When you view a movie, I want to show the showtimes (movie_times tabl开发者_开发技巧e) organized by Theater.I can get all the data just fine, but it\'s returning the Theater data with EVERY MovieTime[详细]

2023-03-19 00:22 分类：问答
Active Record Querying belong_to

I have the two following models associated: class Post < ActiveRecord::Base belongs_to :language end class Language < ActiveRecord::Base[详细]

2023-03-18 19:56 分类：问答
Associating one class to belong to two different classes in DataMapper using Sinatra

I am working with DataMapper and Sinatra to create a simple app. Here\'s the structure: The app has Accounts. Each account has users and campaigns. Each user has comments that should be related to a[详细]

2023-03-18 04:59 分类：问答
What is the right association between these two models?

I am building a blog and I am a Rails newbie. The doubt is about how to stablish the association between these too models: Posts and Languages.[详细]

2023-03-18 02:53 分类：问答
Rails 3: Problem understanding the MVC of this request

If you\'re familiar with railscasts I followed #258 token field to initially set this up, where ryan bates books has_many authors through authorships, I\'m using posts has_many artists through artisan[详细]

2023-03-17 23:27 分类：问答
Rails validate association only when loaded

I have an activity model which has_many participants and I\'d like to ensure that a participant always exists when updating an activity and its participants. I have the following method in my activity[详细]

2023-03-17 22:41 分类：问答
Adding more data on saving 'has_many :through' associated records by keeping use of the "RoR magical\automatic way"

I am using Ruby on Rails 3.0.7 and I followed this post about handling an \"has_many :through => checkboxes\" in which, in order to create user-group relationship records for membership purposes, i[详细]

2023-03-17 22:02 分类：问答
fields_for in table produces technically incorrect HTML

When I use a construct like: <table> <%= f.fields_for :group_locations do |gl| %> <tr>[详细]

2023-03-17 15:30 分类：问答