nested-forms

I would like to get some nested params. I have an Order that has many Items and these Items each have a Type. i would like to get the type_id parameter from the controllers create method. @order = Order.new(params[:order]) @order.items.each do |f| f.item_type_id = Item_type.find_by_name(f.item_type_id).id end The reason is that i want the user to be able to create new item_types in the view. When they do that i use an AJAX call add them to the db. When they post the form i get names of the item_type in the item_type_id parameter and i want to find the correct item_type and set the id to that

I have a projects resource that has many tasks. I want to ensure that every task has a project_id by adding validates_presence_of :project_id to the tasks model. However, when creating a new project with tasks, the project_id won't be available until the record saves, therefore I can't use validates_presence_of :project_id . So my question is, how do I validate presence of project_id in the task model? I want to ensure every task has a parent. ... class Project < ActiveRecord::Base has_many :tasks, :dependent => :destroy accepts_nested_attributes_for :tasks, :allow_destroy => true ... class

Finally moved to Rails 3 for a new project and already running into a rookie problem. Trying to do a simple nested form. 2 models: list and tasks List model class List < ActiveRecord::Base has_many :tasks, :dependent=>:destroy accepts_nested_attributes_for :tasks, :reject_if => lambda { |a| a[:name].blank? } end Task Model class Task < ActiveRecord::Base belongs_to :list end List Controller def new @list = List.new 3.times{ @list.tasks.build } end lists/new.html.erb <% form_for :list, :url=>{:action=>"create"} do |f| %> <%= f.text_field :name, :class=>'big' %> <%= f.label :name, "ex: Today's

I used slick js for slider view of image. Here is my code. <div class="slider_wrap add-remove"> <%= f.fields_for :images do |image_form| %> <%#= render 'images_fields', :f => image_form %> <div> <%= image_tag image_form.object.picture.url,:class=>"drop_down_link even img_prev" %> </div> <div class="image_upload_div"> <div class="image-upload"> <label> <i class="fa fa-cloud-upload"> <%= image_form.file_field :picture ,:'data-role'=>"none",:onchange=>"readURL(this);" , :accept => 'image/jpeg , image/png' %> </i> </label> </div> </div> <% end %> <%= f.link_to_add "Add a picture", :images ,:id=>

In my first rails app I'm trying to use form_for and fields_for to create a nested object form. So far so good, but I can't figure out how to access the sub-object while in the fields_for block. I've pre-populated a field in the sub-object with data that I want to show in the user instructions. Models Garage: has_many :cars, :dependent => :destroy accepts_nested_attributes_for :cars Car: belongs_to :garage Garage Controller def new @garage = Garage.new for i in 1..5 @garage.cars.build :stall_number => i end end _form.html.erb <%= form_for @garage do |f| %> <%= f.label :title, "Garage Name" %>

I'm trying to get it to work but it dosen't! I have class User < ActiveRecord::Base has_many :events, :through => :event_users has_many :event_users accepts_nested_attributes_for :event_users end class Event < ActiveRecord::Base has_many :event_users has_many :users, :through => :event_users accepts_nested_attributes_for :users end class EventUser < ActiveRecord::Base set_table_name :events_users belongs_to :event belongs_to :user accepts_nested_attributes_for :events accepts_nested_attributes_for :users end And also the table-layout event_users user_id event_id user_type events id name users