has-many

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Rails: How to find records by associations within a new array?

I have created a has_many relationship where a Food can be served at several different kinds of meals.[详细]

2023-03-02 16:43 分类：问答
Rails has_many, build, inverse_of

I have 2 models like such: class User < ActiveRecord::Base has_many :user_services, :inverse_of => :user[详细]

2023-02-27 02:46 分类：问答
Rails: Using a Textarea for :has_many relationship

Hey guys, first question here. I have a couple of Products and Users that can put those Products on Wishlists.[详细]

2023-02-26 22:22 分类：问答
Rails check if has_many exist

Is there a way in rails to check to se开发者_开发知识库e if a parents collection is nil in the query? I want to get all the parents that don\'t have any children. Example:[详细]

2023-02-25 15:53 分类：问答
Rails 3 has_many through checkbox form doesn't (does not) work

I have been stuck on this for a day now.I\'ve heard all of this talk of Rails being able to handle easy complexities like this (although this isn\'t/shouldn\'t 开发者_开发技巧be complex).[详细]

2023-02-23 03:41 分类：问答
How to exclude fields of has_many associations when rendering xml

Part 1. I have a Series which has_many :articles. In my show action, if xml is requested, I\'d like to include all the associated :articles, but I really only want three of the fields: :title, :date,[详细]

2023-02-22 17:33 分类：问答
named_scope for sum of column in related table

My SQL skills are laughable at best, which is why Rails and ActiveRecord make my life a lot easier. This time, however, it probably represents a crutch that keeps me from understanding what\'s going o[详细]

2023-02-20 18:11 分类：问答
Two has_may association with Same model Rail 3

Hi im quite beginner in rails. i have a problem suggestion will be appreciated. i have two model \"user\" and \"asset\"[详细]

2023-02-19 16:34 分类：问答
Rspec - respond_to "user post" valid despite user is not valid (has_many/belongs_to association)

I don\'t understand something fairly basic with testing association (has_many / belongs_to ) with rspec.[详细]

2023-02-18 01:24 分类：问答
Rails, has_many list of checkboxes--form field name?

I\'ve got a user model object, assume class User < ActiveRecord::Base has_many :permissions end and class Permission > ActiveRecord::Base[详细]

2023-02-16 14:14 分类：问答