nested-attributes

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How to serialize nested Model in Rails?

I\'m having an extremely difficult time figuring out how to serialize the nested attributes of a model in rails. I have a RecipeTemplate which will store an already existing Recipe in it\'s template_d[详细]

2023-03-21 05:57 分类：问答
ActiveRecord::AssociationTypeMismatch (dynamic image uploader)

I am trying to follow the tutorial Dynamic multiple image uploads with Ruby on Rails that creates a new model for photos and will associate them with another model. After copying and pasting all the c[详细]

2023-03-20 23:02 分类：问答
Nested attributes are not updating in rails

I have 3 models: class DropShipOrderLineItem < ActiveRecord::Base belongs_to :drop_ship_order belongs_to :line_item[详细]

2023-03-20 21:28 分类：问答
Rails: Using accepts_nested_attributes_for in Nested Model Form

In my app, Users have many Conversations, and Conversations have many Messages. I want to create a new Conversation: I have to specify the Users (readers) and the (first) Message. I tried the followin[详细]

2023-03-20 18:34 分类：问答
Rails 3 nested attributes: How can I assign a matching record to the parent model instead of creating a new record every time?

Here\'s the basic setup: I have an Order model. An Order has one Address and it accepts_nested_attributes_for :address.[详细]

2023-03-20 15:45 分类：问答
Implement 1:N relation in postgreSQL (object-relational)

I\'m struggling with postgreSQL, as I don\'t know how to link one instance of type A to a set of instances of type B. I\'ll give a brief example:[详细]

2023-03-20 05:09 分类：问答
rails simple_nested_form_for fields_for wrong number of arguments

So I\'m building a form in rails 3.1, using <%= simple_nested_form_for(@person, :url => collection_url, :html=>{:multipart => true}) do |f| %>[详细]

2023-03-19 17:34 分类：问答
RailsCast 197: nested forms Unknown Attribute

I have two tables: Quote and Part.I am using the rails 3.1 ruby 1.9.2.My code is as follows: class Quote < ActiveRecord::Base[详细]

2023-03-18 19:18 分类：问答
Constructing multi-value JSON for Rails

I have the following javascript object containing a multi-value email property: var contact = { email ={[详细]

2023-03-18 06:43 分类：问答
How do I manually set nested model values in Rails 3 before saving?

I have a single text area input that I would like to get as a blob my new method on my controller, but would like to parse and otherwise mess with the input before it\'s saved.[详细]

2023-03-17 14:36 分类：问答