I have following classes
class TableA < ActiveRecord::Base
has_one :tableb
end
class TableB < < ActiveRecord::Base
belongs_to :tableA
end
I have a tableA/form.html.erb
<%= form_for(##table) do |f| %>
<%= f.text_field :tableAColumn %>
<%= f.text_field :tableAColumn1 %>
#how can i how this
<%= f.text_field :tableBColumn %>
<%=f.text_field :tableBColumn1 %>
<%= f.submit %>
<%end>
So that when i click on save both the records can be saved in Table A and Table B.
Thanks
i used accepts_nested_attributes_for
Nested Attributes
Related
transaction.rb model:
class Transaction < ActiveRecord::Base
attr_accessible :customer, :tickets_attributes
has_many :tickets
accepts_nested_attributes_for :tickets
end
ticket.rb model:
class Ticket < ActiveRecord::Base
attr_accessible :booking_id, :quantity, :transaction_id
belongs_to :transaction
belongs_to :booking
end
in the view page i have a nested rails form for multiple entries of ticket:
<%= form_for(#transaction) do |f| %>
<%= f.text_field :customer %>
<% #sezzion.bookings.each do |booking| %>
<%= booking.bookingdate %>:
<%= f.fields_for :ticket do |t| %>
<%= t.text_field :quantity, :value => 0, :class => "quantity" %>
<%= t.hidden_field :booking_id, :value => booking.id %>
<% end %>
<% end %>
<%= f.submit "create transaction" %>
<% end %>
When I'm submitting the form, I have the following error:
ActiveModel::MassAssignmentSecurity::Error in TransactionsController#create
Can't mass-assign protected attributes: ticket
I have attr_accessible :tickets_attributes and accepts_nested_attributes_for :tickets in the transaction model and there's still an error. Also when I add plural to the ticket on line <%= f.fields_for :ticket do |t| %>, the quantity field doesn't display.
Your form f is based off of a Transaction object, which has_many :tickets. I believe you should be using the plural :tickets rather than the singular :ticket in your fields_for.
<%= f.fields_for :tickets do |t| %>
If you always want a new ticket, you may need to do:
<%= f.fields_for :tickets, Ticket.new do |t| %>
to ensure that a create form shows up.
total re-edit -- sorry its been a while I had to refresh my memory
transaction.rb tickets_attributes is ok.
class Transaction < ActiveRecord::Base
attr_accessible :customer, :tickets_attributes
has_many :tickets
accepts_nested_attributes_for :tickets
end
transaction_controller.rb you must build the tickets.
def new
#transaction = Transaction.new
#transaction.tickets.build
end
new.rb or in your form, fields_for must be for :tickets as rob as pointed out:
<%= form_for(#transaction) do |f| %>
...
<%= f.fields_for :tickets do |t| %>
...
I think you might be missing the build part in the controller. hope that helps!
I have three models, and i am trying to save onto a third table using simple form gem and checkboxes.
class Work < ActiveRecord::Base
has_many :skills, through: :skillships
end
The second model is
class Skill < ActiveRecord::Base
has_many :works, through: :skillships
end
The third is
class Skillship < ActiveRecord::Base
belongs_to :work
belongs_to :skill
end
Using the Work model i am trying to save the data on the skillship table. Something similar to this http://railscasts.com/episodes/17-habtm-checkboxes-revised. Can you please help.
EDIT
The form
<%= simple_form_for(#work) do |f| %>
<%= f.error_notification %>
<div class="form-inputs">
<%= f.input :title, :label => 'Project Title' %>
<%= f.input :excerpt, :as => :text %>
<fieldset>
<legend>Skills Used </legend>
Would like to check the skills i used here.
</fieldset>
</div>
<div class="form-actions">
<%= f.button :submit %>
</div>
<% end %>
I tried..
<%= hidden_field_tag "work[skill_ids][]", nil %>
<% Skill.all.each do |skill| %>
<%= check_box_tag "work[skill_ids][]", skill.id, #work.skill_ids.include?(skill.id), id: dom_id(skill) %>
<%= label_tag dom_id(skill), skill.title %><br>
<% end %>
The reason i'm doing this it because work can have many skills used.
I was going about this the wrong way. A join table solved the problem.
rails g migration create_skills_works_table
Then
class CreateSkillsWorksTable < ActiveRecord::Migration
def self.up
create_table :skills_works, :id => false do |t|
t.references :skill
t.references :work
end
add_index :skills_works, [:skill_id, :work_id]
add_index :skills_works, [:work_id, :skill_id]
end
def self.down
drop_table :skills_works
end
end
Using simple form on the work view.
<fieldset>
<legend>Skills Used </legend>
<%= f.association :skills %>
</fieldset>
I have problem in getting below code to work.
class Page < ActiveRecord::Base
has_many :page_parts, :through => :page_parts_pages
has_many :page_parts_pages
accepts_nested_attributes_for :page_parts, :allow_destroy => true
accepts_nested_attributes_for :page_parts_pages, :allow_destroy => true
end
class PagePart < ActiveRecord::Base
has_many :page_parts_pages
has_many :pages, :through => :page_parts_pages
end
class PagePartsPage < ActiveRecord::Base
belongs_to :page
belongs_to :page_part
end
Table Structure:-
pages
id, title
pages_parts
id, title
page_parts_pages
id, page_id, page_part_id
View code
<% page_fragment.each do |k,v| %>
<% if v.nil? or v.blank? or v.empty? %>
<% parts = f.object.page_parts.build if f.object.page_parts.blank? %>
<%= f.fields_for :page_parts, parts do |p| %>
<%= render 'page_part_form_field', :f => p %>
<% end %>
<% else %>
<% parts_page = f.object.page_parts_pages.build if f.object.page_parts_pages.blank? %>
<%= f.fields_for :page_parts_pages, parts_page do |p| %>
<%= render 'page_part_page_form_field', :f => p %>
<% end %>
<% end %>
<% end %>
Actually the scenario is, I have to display the fields for page_parts and page_parts_pages on condition basis. If condition is satisfied, display fields for page_parts else display fields for page_parts_pages.
It's working perfectly fine for new action but for edit action it is not displaying correctly.
Any help is highly appreciated.
Thanks in advance
You are creating new page_parts in this form:
parts = f.object.page_parts.build if f.object.page_parts.blank?
parts_page = f.object.page_parts_pages.build if f.object.page_parts_pages.blank?
'build' creates new objects (it will not persist them in database though). So, no wonder it works for new, but not for edit.
You can try this:
<% page_fragment.each do |k,v| %>
<% if v.blank? %>
<%= f.fields_for :page_parts do |p| %>
<%= render 'page_part_form_field', :f => p %>
<% end %>
<% else %>
<%= f.fields_for :page_parts_pages do |p| %>
<%= render 'page_part_page_form_field', :f => p %>
<% end %>
<% end %>
<% end %>
rails api has pretty good documentation of forms_for and other form helpers.
Given a User who can possibly be an Artist:
class User < ActiveRecord::Base
has_one :artist
end
I've got a User & Artist nested form (using Formtastic gem):
<h1>Artist registration</h1>
<% #user.build_artist unless #user.artist %>
<%= semantic_form_for #user, :url => create_artist_path do |f| %>
<%= f.inputs :username %>
<%= f.semantic_fields_for :artist do |a| %>
<%= a.input :bio %>
<% end %>
<%= f.buttons do %>
<%= f.commit_button 'Register as Artist' %>
<% end %>
<% end %>
The problem is the :artist fields are not rendered.
I've also tried f.inputs :for => :artist do |a|.
For some reason, using #user.build_artist does not display the artist's fields in the form. If I try #user.artist = Artist.new I get an error, because it tries to save the Artist and validation fails.
How should I initialize the Artist model so I get the benefit of formtastic generators in a nested form? (Note that #user here is not a :new_record?)
Did you remember to set accepts_nested_attributes_for :artist in user.rb?
It's my first time here, and first time I use nested_form gem. Everything seemed to be ok, but the data from my "parent" model doesn't save.
Here is my code
<%= nested_form_for #project do |f| %>
<p>
<%= f.label :name %><br />
<%= f.text_field :name %>
</p>
<%= f.fields_for :tasks %>
<p><%= f.link_to_add "Add a task", :tasks %></p>
<%= f.submit %>
<% end %>
so, when I "submit", just the tasks are saved ok, but not the project name.
Any clue for me? did I miss something??
You need to add the attribute. eg name to attr_accessible.
# app/models/project.rb
class Project < ActiveRecord::Base
has_many :tasks, :dependent => :destroy
accepts_nested_attributes_for :tasks, :allow_destroy => true
attr_accessible :name,:tasks_attributes ## <-- you need this line
end
Your fields_for declaration isn't quite right
<%= f.fields_for :tasks %>
Should be
<%= f.fields_for :tasks do |task_builder| %>
you are also missing an end for that declaration and a render to render the partial that has the nested fields for the associated object.
So you should end up with something like this
<%= f.fields_for :tasks do |task_builder| %>
<%= render 'task_fields', :f => task_builder %>
<% end %>
<p><%= f.link_to_add "Add a task", :tasks %></p>
That should do the trick. all you need to do now is create a _task_field.html.erb partial and add the task fields to it in the usual way using f.label, f.text_field etc...
p.s.
Your code could not possibly have ever worked. You would have had errors so something is probably missing from your opening post.