I am working on my first rails application and I am attempting to setup multiple image uploads in a form. I have created a contest which has many contest entries, and contest entries can have many images. I have the contest entry piece working, but I am having trouble getting the image upload portion of the form working. I am following this tutorial http://lucapette.com/rails/multiple-files-upload-with-carrierwave-and-nested_form/ linked to from the carrier wave wiki.
contest entry model
class ContestEntry < ActiveRecord::Base
attr_accessible :body, :title, :contest_id, :entry_images_attributes
validates :user_id, presence: true
validates :title, presence: true, length: { maximum: 140 }
validates :body, presence: true
validates :contest_id, presence: true
belongs_to :contest
belongs_to :user
has_many :entry_images, as: :imageable
accepts_nested_attributes_for :entry_images
end
Entry image model
class EntryImage < ActiveRecord::Base
attr_accessible :alt, :image_path
belongs_to :imageable, :polymorphic => true
validates :image_path, presence: true
mount_uploader :image, ImageUploader
end
New entry form
<%= nested_form_for([:contest, #entry], :html => {:multipart => true}) do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<%= f.hidden_field :contest_id %>
<p>
<%= f.label :title %><br />
<%= f.text_field :title %>
</p>
<p>
<%= f.label :body %><br>
<%= f.text_area :body %>
</p>
<%= f.fields_for :entry_images do |builder| %>
<p>
<%= builder.label :alt %><br />
<%= builder.text_field :alt %>
</p>
<p>
<%= builder.label :image_path %><br />
<%= builder.file_field :image_path %>
</p>
<% end %>
<p><%= f.link_to_add "Add Image", :entry_images %></p>
<%= f.submit "Enter", class: "btn btn-large btn-primary" %>
<% end %>
<%= javascript_include_tag :defaults,"nested_form" %>
for some reason nothing shows up in the <%= f.fields_for :entry_images do |builder| %> block. It is just blank there is also no error message. if I switch it to
<%= f.fields_for :entry_image do |builder| %> and switch to using a form_for instead of the nested_form_for plugin all the fields show up but I get errors when I submit.
Any ideas?
Thanks,
Cory
Related
I added a nested attribute to my form, the fields for the nested attribute which is Education fields do not render, the other fields do. The relationships appear to be in order and the controller does too.
Here is the code.
Controller
def new
#profile = current_user.build_student_profile
end
def profile_params
params.require(:student_profile).permit(:first_name, :last_name, :gender, student_profiles_attributes: [:degree, :university_id, :major, :major2, :start_date, :end_date, :grade, :grade_scale] )
end
Models
class Education < ActiveRecord::Base
belongs_to :student_profile
belongs_to :university
validates :grade_scale, inclusion: { in: %w(GPA4 GPA7 WAM100) }
validates :degree, :university_id, :major, :start_date, :end_date, :grade, :grade_scale, presence: true
end
class StudentProfile < ActiveRecord::Base
belongs_to :user
has_many :educations
validates :gender, inclusion: { in: %w(male female) }
validates :first_name, :last_name, :gender, presence: true
accepts_nested_attributes_for :educations
end
Form
<%= form_for (#profile) do |f| %>
<%= f.label :first_name %>
<%= f.text_field :first_name %>
<%= f.label :last_name %>
<%= f.text_field :last_name %>
<%= f.label :gender %>
<%= f.text_field :gender %>
<%= f.fields_for :educations do |education_fields| %>
<%= education_fields.label :Degree %>
<%= education_fields.text_field :degree %>
<%= education_fields.label :University %>
<%= education_fields.collection_select(:university_id, University.all, :id, :name) %>
<%= education_fields.label :Major %>
<%= education_fields.text_field :major %>
<%= education_fields.label :Additional_Major %>
<%= education_fields.text_field :major2 %>
<%= education_fields.label :Start_Date %>
<%= education_fields.date_field :start_date %>
<%= education_fields.label :End_Date %>
<%= education_fields.date_field :end_date %>
<%= education_fields.label :Grade %>
<%= education_fields.number_field :grade %>
<%= education_fields.label :Grade_Scale %>
<%= education_fields.select :grade_scale, [["GPA / 4","GPA4"], ["GPA / 7","GPA7"], ["WAM / 100","WAM100"]] %>
<% end %>
<%= f.submit :submit %>
<% end %>
I have tried to add the following to the controller new action #profile.educations.build but I get an error unknown attribute student_profile_id
Can anyone help ?
Make sure you have student_profile_id attribute/column present in educations table.
After that, as you have mentioned, you need to build educations object on student_profile as:
def new
#profile = current_user.build_student_profile
#profile.educations.build
end
Try this
<%= f.fields_for(:educations,#profile.educations.build) do |education_fields| %>
<% end %>
or
def new
#profile = current_user.build_student_profile
#educations = #profile.educations.build
end
<%= f.fields_for(#educations) do |education_fields| %>
<% end %>
I have simple but frustrating problem with showing validation errors for comments of posts. Error partial shows errors for posts but despite validation works on comments, errors don't render.
comment form partial is inserted into post view:
<%= form_for([#post, #post.comments.build]) do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<p>
<%= f.label :commenter %><br>
<%= f.text_field :commenter %>
</p>
<p>
<%= f.label :body %><br>
<%= f.text_area :body %>
</p>
<p>
<%= f.submit %>
</p>
<% end %>
errors partial
<% if object.errors.any? %>
<h2>Errors:</h2>
<ul>
<% object.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
models:
class Post < ActiveRecord::Base
has_many :comments, dependent: :destroy
validates :title, :content, :presence => true
validates :title, length: { minimum: 3 }
validates :title, :uniqueness => true
end
class Comment < ActiveRecord::Base
belongs_to :post
validates :body, presence: true
validates :commenter, presence: true, length: { minimum: 3 }
end
I have been looking for answer for some time but can't get it working.
Add this line to the Post model
validates_associated :comments
There is a User model and Company model.
User.rb
class User < ActiveRecord::Base
has_and_belongs_to_many :companies
end
Company.rb
class Company < ActiveRecord::Base
has_and_belongs_to_many :users
end
New.html.erb
<%= simple_form_for(#user) do |f| %>
<% if policy_scope(Company).count <= 1 %>
<%= f.label :company, "Company: "%><br />
<%= f.text_field :company, :value => policy_scope(Company).first %><br /><br />
<% else %>
<%= f.association :company, collection: policy_scope(Company).all, prompt: "Choose a Company", :required => true %>
<% end %>
<%= f.input :username, :required => true %>
<%= f.input :display_name, :required => true %>
<div class="form-actions">
<%= f.button :submit, :class => 'btn-primary' %>
</div>
<% end %>
f.association is failing saying :company not found. If policy_scope(Company).count <= 1 then code in that condition works fine.
Please say if you need more code. Thank you
I have a BikeShops model:
class BikeShop < ActiveRecord::Base
has_one :user, :as => :profile, :dependent => :destroy
accepts_nested_attributes_for :user
end
And a Users model:
class User < ActiveRecord::Base
belongs_to :profile, :polymorphic => true
end
I am trying to create a nested form in the bike_shops/new view. Here is the code I have: in there:
<%= form_for(#bike_shop) do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<%= f.label :name, 'Shop Name' %>
<%= f.text_field :name %>
<%= f.label :street_address, 'Street Address' %>
<%= f.text_field :street_address %>
<%= f.label :city, 'City' %>
<%= f.text_field :city %>
<%= f.label :state, 'State' %>
<%= f.text_field :state %>
<%= f.label :zip_code, 'Zip Code' %>
<%= f.text_field :zip_code %>
<%= f.label :phone_number, 'Phone Number' %>
<%= f.text_field :phone_number %>
<%= f.label :website, 'Website' %>
<%= f.text_field :website %>
<% f.fields_for(:user) do |builder| %>
<%= builder.label :first_name, 'First Name:' %>
<%= builder.text_field :first_name %>
<%= builder.label :last_name, 'Last Name:' %>
<%= builder.text_field :last_name %>
<%= builder.label :email, 'Email:' %>
<%= builder.text_field :email %>
<%= builder.label :password, 'Password:' %>
<%= builder.password_field :password %>
<%= builder.label :password_confirmation, 'Password Confirmation:' %>
<%= builder.password_field :password_confirmation %>
<% end %>
<%= f.submit "Signup My Bike Shop", class: "btn btn-large btn-primary" %>
<% end %>
The fields for #bike_shop appear but the nested fields for the has_one #user do not appear. Here is the code in the BikeShops controller:
class BikeShopsController < ApplicationController
def new
#bike_shop = BikeShop.new
#user = #bike_shop.build_user
end
I was following this railscast but can't get pass getting the fields for the nested form to show. Any help is appreciated.
You need to use the <%= erb tag in order to render it instead of just <%
<%= f.fields_for(:user) do |builder| %>
I use Ruby v 3. I want to display data from 2 tables into one form.
My models:
class Address < ActiveRecord::Base
attr_accessible :city, :number, :street
validates :city, :presence => true
validates :number, :presence => true
validates :street, :presence => true
has_many :users
end
class User < ActiveRecord::Base
belongs_to :address
attr_accessible :name, :phone, :surname, :address_attributes
accepts_nested_attributes_for :address
end
My form looks alike:
<%= form_for(#user) do |f| %>
<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :surname %><br />
<%= f.text_field :surname %>
</div>
<div class="field">
<%= f.label :phone %><br />
<%= f.text_field :phone %>
</div>
<%= f.fields_for :address_attributes do |p| %>
<div class="field">
<%= p.label :city %><br />
<%= p.text_field :city %>
</div>
<div class="field">
<%= p.label :street %><br />
<%= p.text_field :street %>
</div>
<div class="field">
<%= p.label :number %><br />
<%= p.text_field :number %>
</div>
<% end %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
As you can see I use fields_for method. And my controller is here:
def edit
#user = User.find(params[:id])
#user.address_attributes = #user.address
end
It does not working and I totally don't know why. When I click edit on address list i've got an error:
undefined method `with_indifferent_access'
Anyone can help me figure it out?
Check out Episodes 196 and 197 on RailsCasts:
http://railscasts.com/episodes/196-nested-model-form-part-1
http://railscasts.com/episodes/197-nested-model-form-part-2
There is a revised episode for 196, for which you will need to subscribe to RailsCasts.
I would highly recommend subscribing to learning sites like RailsCasts and CodeSchool, to lear RoR faster and in the right way.
Try to do:
def edit
#user = User.find(parmas[:id])
end
and on your view:
<%= f.fields_for :address do |p| %>
and see if it works, you don't have to add the attributes