has-many-through

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ActiveRecord Find with condition based on associated record having a value in a list

With the following Rails models: class Group < ActiveRecord::Base has_many:group_loca开发者_运维问答tions, :dependent => :restrict[详细]

2023-03-11 05:30 分类：问答
Yii framework: HAS_MANY through on condition not working?

I don\'t know what\'s happening because thing does not add up so going to ask the community for help.[详细]

2023-03-11 03:48 分类：问答
Writing a has_many :through with :conditions association fails due to mass assignment protection

I have 3 classes: Group and User, connected by a join table called Membership. Membership has a attribute \"role\" which tells us about the role that user is playing in the group.[详细]

2023-03-11 02:20 分类：问答
ruby on rails after_remove, after_add callbacks on has_many :through

I have a model which fits the following pattern: class foo < ActiveRecord::Base has_many :bar, :dependent => :destroy[详细]

2023-03-10 21:10 分类：问答
In a view how do I get the id of a join model in rails with a has_many through relationship?

If I have two modals joined with a has many two rela开发者_运维问答tionship, lets say (teams and players) and they are joined through (lineups)[详细]

2023-03-10 06:59 分类：问答
ruby on rails has_many :through association which has two columns with same model

I have the following model: class UserShareTag < ActiveRecord::Base attr_protected :sharee_id, :post_id, :sharer_id[详细]

2023-03-10 01:47 分类：问答
has_many _through not working in Rails 3 after upgrade from Rails 2

I have the following in my controller: @campaign = Campaign.where(:id => params[:id]) @companies = @campaign.companies.sort { |a,b| a.name <开发者_Go百科=> b.name` }[详细]

2023-03-10 01:18 分类：问答
Models -> has_many -> Twice

So I have a somewhat confusing relationship here, between a Note, Group, and User. And I ended up with has_many twice in my model. But I\'m开发者_如何转开发 currently focused on the Note & Group r[详细]

2023-03-08 06:28 分类：问答
has_many :through not giving access to <class>_id from base

Model code class Location < ActiveRecord::Base attr_accessible :day_tokens, :name, :address, :phone has_many :locavailability[详细]

2023-03-07 14:53 分类：问答
Multiple foreign keys in parent records (Rails)

I\'m trying to get rid of my join tables, in favor of a database design that is faster for large datasets. The way I\'m planning to do this is to store the id\'s of children开发者_StackOverflow in the[详细]

2023-03-07 14:49 分类：问答