has-and-belongs-to-many

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Rails: Has and belongs to many (HABTM) -- create association without creating other records

Spent all day on Google, but can\'t find an answer. :\\ I have a HABTM relationship between Users and Core_Values.[详细]

2023-02-05 04:26 分类：问答
HABTM Relationship -- How Can I Find A Record Based On An Attribute Of The Associated Model

I have setup this HABTM relationship in the past and it has wo开发者_如何学Pythonrked before....Now it isn\'t and I\'m at my wits end trying to figure out what\'s wrong.I\'ve looked through the rails[详细]

2023-02-04 12:02 分类：问答
Rails 3: habtm migration, primary key issue

I\'m trying to setup a migration file for a habtm relationship, however when I run the migration I\'m getting the following error:[详细]

2023-02-03 08:17 分类：问答
cakephp 1.3 paginating habtm related data

I have searched high and low and tried multiple different solutions to this and I cannot seem to get it to work.[详细]

2023-02-03 06:07 分类：问答
Rails 3: Devise add roles checkboxes to registration form

I\'m using Devise for user registration. I\'ve been reading the all famous tutorial about customizing Devise, but can\'t understand this simple task. I followed his model (HABTM)[详细]

2023-02-03 04:16 分类：问答
Determine if children added/deleted in Rails Callback

Scenario: I have a habtm relationship and would like to determine if children in one direction have been added or deleted.I\'m trying to use callbacks but find i don\'t have a record of changes to th[详细]

2023-02-02 17:09 分类：问答
How to set up two models having a has_many association with each other

I\'m looking for a suggestion on how to set up two models, Teacher and Subject. A Teacher can have many Subjects, and a Subject can have many Teachers. Another thing to consider in the relationship be[详细]

2023-02-02 06:00 分类：问答
correct data array to save with this kind of relationship

class Post extends AppModel { var $name = \'Post\'; var $hasMany = array( \'CategoryPost\' => array( \'className\' => \'CategoryPost\'[详细]

2023-02-02 02:10 分类：问答
Rails HABTM reading unique records

Here is wh开发者_如何学编程at i have. client has_many branches branch has_many projects project has_and_belongs_to_many announcements[详细]

2023-02-01 18:54 分类：问答
How to get HABTM associated data using hasOne binding

I am following example documented at http://book.cakephp.org/view/83/hasAndBelongsToMany-HABTM I am trying to retrieve associated data using hasOne.[详细]

2023-02-01 17:23 分类：问答