has-many-through

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HMT collection_singular_ids= deletion of join models is direct, no destroy callbacks are triggered

Just ran into an issue with a has_many :through association and after/before-destroy callbacks not being triggered.[详细]

2023-01-31 12:59 分类：问答
Rails 3: has_many :throught save problem?

I was hoping someone could explain to me why i can\'t save new record? class User < ActiveRecord::Base[详细]

2023-01-31 00:42 分类：问答
has_many through blowing away the association's metadata on mass association

Hey, Not a Rails noob but this has stumped me. With has many through associations in Rails.When I mass assign wines to a winebar through a winelist association (or through) table with something like t[详细]

2023-01-30 19:08 分类：问答
Adding and removing from a has_many :through relation

From the Rails associations guide, they demonstrate a many-to-many relationship using has_many :through like so:[详细]

2023-01-29 19:48 分类：问答
Joining tables in Rails through relation table

I have three classes; User, Feed, and Entries. Users have one or more Feeds and Feeds have one or more Entries:[详细]

2023-01-28 09:43 分类：问答
rails has_many association between 3 tables

I have 3 classes: User, Bicycle, Transaction. A user can have many bicycles, and bicycle have only one user (owner).[详细]

2023-01-28 04:05 分类：问答
Rails query using HMTH and multiple join models

I am using Rails 3 and wanted to get the classes a student has access to based upon the model below class Student[详细]

2023-01-27 22:53 分类：问答
Setting a type for one side of a many-to-many association with a join model

I set up a public github app (see: https://github.com/greenplastik/testapp to download) to work through a problem I\'m having with specifying a type on one side of a many-to-many association between t[详细]

2023-01-27 08:48 分类：问答
Rails Has Many Through Polymorphic Checkboxes

This one\'s really getting me down! :( I\'m trying to make a nested model form for my User model with a checkbox list in it where multiple Stores can be checked or unchecked to administer the Stores[详细]

2023-01-25 05:22 分类：问答
rails has_many :through - Is it possible to have a conditions in the through table?

There are 2 models, and they are linked using a has_many :though r开发者_开发知识库elation. There is the :conditions parameter, that will look for a condition in the other model table, but is there s[详细]

2023-01-23 16:03 分类：问答