fields-for | 易学教程

Rails error message using fields_for

阅读更多关于 Rails error message using fields_for

问题 In my sub-ledger accounting rails app I have a funds model class Fund < ActiveRecord::Base belongs_to :agency has_many :gl_accounts accepts_nested_attributes_for :gl_accounts attr_accessible :name, :agency_id, :fund, :user_stamp, :active attr_accessible :gl_accounts_attributes and a gl_accounts model class GlAccount < ActiveRecord::Base belongs_to :agency belongs_to :fund has_many :class_sessions has_many :facilities validates :agency_id, :fund_id, :name, :gl_account_number, :active, :user

Rails 3.2.13 - Delete Entry From Nested Attributes

阅读更多关于 Rails 3.2.13 - Delete Entry From Nested Attributes

问题 I have a Ruby on Rails 3.2.13 application where I have a collection_select statement. The collection_select statement is in a fields_for statement where I gather selected ids from the collection_select and use them to populate another table. The problem I am having is that the collection_select statement adds a null id entry in the array that stores the collection of selected ids. Here is my code in my view: <%= f.fields_for :media_topics do |media_topic| %> <%= media_topic.label :topic,

fields_for doesnt working when form_for use symbol

阅读更多关于 fields_for doesnt working when form_for use symbol

问题 i have a form_for code <%form_for :a,:url=>{:controller=>"biz/a",:action=>"save"},:html =>{:multipart => true} do |f| %> ..... <%f.fields_for :b do |b|%> ..... <%b.fields_for :apples do |apple|%> ... <%end%> .... <%end%> it outputs the html code without fields_for function <textarea cols="40" id="a_b_apples_content" name="a[b][apples][content]" rows="20" style="width:500px;height:100px;border:1px #889BAA solid;color:#999;font-size:12px;padding:6px;"></textarea> when i change the form_for to :

fields_for for nested attribute returns nothing

阅读更多关于 fields_for for nested attribute returns nothing

问题 I'm trying to create a nested model form in Rails 3.0.3. Here are my models: class Bird < ActiveRecord::Base has_one :taxon, :as => :organism accepts_nested_attributes_for :taxon end class Taxon < ActiveRecord::Base belongs_to :organism, :polymorphic => true end Here's the controller method: def new @bird = Bird.new @bird.build_taxon end And here's the form: New Bird <% form_for @bird do |f| %> <p> <%= f.label :wingspan %> <%= f.text_field :wingspan %> </p> <p> <%= f.label :body_length %> <%=

Rails 4.0 beta, fields_for not accepting pluralized model_name in one-to-many association

阅读更多关于 Rails 4.0 beta, fields_for not accepting pluralized model_name in one-to-many association

问题 I am creating an app to allow users to record workouts and exercises, with the exercises as a nested model within my workouts form. routes.rb: resources :users do resources :workouts end workouts.rb: attr_accessible :name, :exercises_attributes has_many :exercises belongs_to :user accepts_nested_attributes_for :exercises, :allow_destroy => true exercise.rb: attr_accessible :name, :weight, :reps belongs_to :workout In my workouts_controller.rb : def create @workout = @user.workouts.new(workout

Fields_for dynamic label

阅读更多关于 Fields_for dynamic label

问题 I have dynamic form which has a set of values. I created a partial which contains text fields which I display. Next to each of them I would like to display a label containing the title of the text. For instance First Name, and Last Name would not be known previously. How do I go about doing that? It seems that I cannot access the attributes directly. But when I use the label field, the variable name in the label is displayed not the actual value. 回答1: Well! This was a reflection of how new I

Absolutely stuck trying to create nested association in rails form with has_many through

阅读更多关于 Absolutely stuck trying to create nested association in rails form with has_many through

问题 I posted an earlier question about this and was advised to read lots of relevant info. I have read it and tried implementing about 30 different solutions. None of which have worked for me. Here's what I've got. I have a Miniatures model. I have a Manufacturers model. Miniatures have many manufacturers THROUGH a Productions model. The associations seem to be set up correctly as I can show them in my views and create them via the console. Where I have a problem is in letting the Miniatures NEW

unknown attribute on polymorphic nested form object creation

阅读更多关于 unknown attribute on polymorphic nested form object creation

I am trying to create an associated polymorphic object through fields_for. I am getting an unknown attribute error though when the parent is created, are the @order params not getting through somehow? Parent/Order controller - # GET /orders/new def new @order = Order.new @order.build_patient @order.product = OrthosisSpecification.new end # GET /hotels/1/edit def edit @order.build_patient end # POST /orders # POST /orders.json def create @order = Order.new(order_params) respond_to do |format| if @order.save format.html { redirect_to @order, notice: 'Order was successfully created.' } format

Get object value with nested_form

阅读更多关于 Get object value with nested_form

问题 I have a nested form (payments in an order) and I would like to test a value in my nested forms (fields_for) in edit view. But the problem is that I am not able to check each, I can just do this: <% if @order.payments[0].monthly == false %> Do you now how it is possible to check for each, like: <% if @order.payments[current_payment].monthly == false %> 回答1: If I understand the question, you are editing an order and have a fields_for for the payments and want to get the payment instance

Plural for fields_for has_many association not showing in view

阅读更多关于 Plural for fields_for has_many association not showing in view

问题 Currently, an Item belongs_to a Company and has_many ItemVariants . I'm trying to use nested fields_for to add ItemVariant fields through the Item form, however using :item_variants does not display the form. It is only displayed when I use the singular. I have check my associations and they seem to be correct, could it possibly have something to do with item being nested under Company, or am I missing something else? Thanks in advance. Note: Irrelevant code has been omitted from the snippets