has-and-belongs-to-many

相关标签：javascript jquery android 多少钱 iPhone

Determining intersection of two HABTM relationships in rails 3

I have the following relationships: class Article < ActiveRecord::Base has_and_belongs_to_many :required_certs, :class_name=>\"Certification\"[详细]

2023-02-16 15:49 分类：问答
CakePHP multiple HABTM relationships

I have an assets table which contains all the fields shared by all asset types, e.g. name, path, filetype, size, etc.[详细]

2023-02-16 08:24 分类：问答
Rails habtm callbacks

Is there a way to add callbacks for when an item is added to a habtm relationship? For example, I have the following two models, User and Role:[详细]

2023-02-16 07:45 分类：问答
Ruby on Rails , habtm collect method not collecting?

I am trying to backup data to a yaml store on deletion like so: DeleteProject.create!(:data => { :project => project.attributes,[详细]

2023-02-14 23:31 分类：问答
Incorrect object returned from a has_and_belongs_to_many relationship

I have two models, User and Discussion User model has_and_belongs_to_many :subscribed_discussions, :class_name => \'Discussion\', :join_table => \'discussions_subscriptions\'[详细]

2023-02-14 10:58 分类：问答
CakePHP multi-HABTM associations with pagination

For an e-commerce app that I\'m building I am using CakePHP. I have created the db and afterwards baked my app with cake bake.[详细]

2023-02-11 16:47 分类：问答
HABTM and belongsTo at the same join, cakePhp

I have a model Fix with a relationship HABTM Device model. Device model has a belongsTo to Device_type model, like this, for only getting the device type name:[详细]

2023-02-11 12:45 分类：问答
declarative authorization and has_and_belongs_to_many

I have a little problem with declarative-authorization. I have a User and Role Model with a has_and_belongs_to_many association.[详细]

2023-02-11 01:29 分类：问答
rails 3 habtm delete only association

class Company has_and_belongs_to_many :users end class User has_and_belongs_to_ma开发者_如何转开发ny :companies[详细]

2023-02-10 22:36 分类：问答
Rails - how would you set up this HABTM relationship

I have a situation where Project can have many Tags (and vice versa), so I have set up a has_and_belongs_to_many 开发者_如何学Gorelationship between the two.[详细]

2023-02-10 19:36 分类：问答