model-associations

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Php to Rails - Rails Associations - contact_to_groups table

I have CRUD in place for creating contacts and creating groups. Both are nested under the user model.[详细]

2023-03-08 09:09 分类：问答
simple_form_for error: undefined method - associated models

In my rails application I have two associated models called Magazine and Article. Magazine class Magazine < ActiveRecord::Base[详细]

2023-03-08 08:50 分类：问答
Associate two tables one-to-many in rhodes

I\'m starting a new application in rhodes and I\'m trying to associate two tables. I already tried doing what is suggested in http://docs.rhomobile.com/rhodes/rhom#associationsbut I guess there is som[详细]

2023-03-06 20:00 分类：问答
Rails Polymorphic Association

I\'m having a difficult time grasping polymorphic associations in Rails. I have two models, Group and User.[详细]

2023-03-06 14:45 分类：问答
how to get cakePHP Model->field method to use conditions with associated models?

I have a problem, I need to retrieve a single field from a single record, without the associated models, while using conditions that uses the associated models?[详细]

2023-03-06 06:22 分类：问答
Setting up a Has_Many :through Association

On the application I\'m currently working on, I\'m stuck on setting up the associations between 3 models to ensure referential integrity. I have an Event model, Building model, and a Room model. The a[详细]

2023-03-01 22:29 分类：问答
Rails associations / sessions question

I am working on a app for my kid开发者_Go百科s to log their chores.I have 3 children (Nick, Siena, Mac) and have a home page with each name hyperlinked ...[详细]

2023-03-01 17:31 分类：问答
set validation false on association mongoid

I have two models class Person embeds_one :address end class Address embedded_in :person field :city validates :city, :presence => true[详细]

2023-02-22 01:59 分类：问答
Rails Controller: Is it good practice to define controller for associations?

Suppose i have mapping table map_user_roles. I have defined models Role and User. Both are associated to each other by relationship has_and_belongs_to_many. Of course it does not make sense to define[详细]

2023-02-17 11:26 分类：问答
Same Model for Two belongs_to Associations

I have an model PointOfContact which has_many Systems. From the Systems side I want to identify the PointOfContact as either the technical_manager or p开发者_JS百科roject_manager (or both). While stil[详细]

2023-02-17 02:33 分类：问答