I have following two models
class Office < ActiveRecord::Base
has_many :locations, :dependent => :destroy
end
class Location < ActiveRecord::Base
belongs_to :office
end
I have a new.html.erb for the office model and the below code in OfficeController
def create
#office = Office.new(params[:deal])
if #office.save
redirect_to office_url, :notice => "Successfully created office."
else
render :action => 'new'
end
end
How can I add fields for Location model in new.html.erb of Office?
I want to be able to have fields for locations in the same form.
You'll have to use nested attributes to do this. Fortunately, Rails makes it pretty easy. Here's how to do it:
First, signify to Office that you're giving it Location fields as well by adding this line:
accepts_nested_attributes_for :location.
Now, in new.html.erb, add the fields that you want. Say we want to have city and state:
<%= f.fields_for :location do |ff| %>
<%= ff.label :city %>
<%= ff.text_field :city %>
<%= ff.label :state %>
<%= ff.text_field :state %>
<% end %>
That's it!
Related
I'm building a rail 3.2.16 app using 3 models related with a has_many through association but my saving actions are not working. this are my models:
class Cliente < ActiveRecord::Base
has_many :prestamos
accepts_nested_attributes_for :prestamos, reject_if: :all_blank
end
class User < ActiveRecord::Base
has_many :prestamos
has_many :clientes, :through => :prestamos
end
class Prestamo < ActiveRecord::Base
validates_numericality_of :monto, only_integer: true
validates :monto, presence: true
belongs_to :user
belongs_to :cliente, inverse_of: :prestamos
end
When I try to build my #cliente in clientes_controller#new with this
#cliente = current_user.clientes.build
and this in #create
#cliente = current_user.clientes.build(params[:cliente])
and using this view
<%= simple_form_for(#cliente) do |f| %>
<%= f.input :nombre %>
<%= f.input :cedula %>
<%= f.input :direccion %>
<%= f.simple_fields_for :prestamos do |builder| %>
<%= builder.input :monto %>
<% end %>
<%= f.button :submit %>
<% end %>
The render HTML is the expected one, but on save I got the validations errors related to monto in prestamo model. By the way, the monto field is displayed twice.
The erros I having:
Prestamos monto is not a number
Prestamos monto can't be blank
I really hope someone can help me.
Thanks in advance.
Well, I could solve it, but I'm not sure if this is the best way to do it since I'm pretty new in Rails (3 month). This is what I did:
First, I changed my join model Prestamo to this:
class Prestamo < ActiveRecord::Base
attr_accessible :monto, :user_id, :cliente_id
validates_numericality_of :monto, only_integer: true
validates :monto, presence: true
belongs_to :user
belongs_to :cliente, inverse_of: :prestamos
end
The validation were there already, I just added :user_id to the attr_accessible.
2nd, I changed my new and create actions to this:
new:
def new
#cliente = Cliente.new
#cliente.prestamos.build(user_id: current_user.id)
end
create:
#cliente = Cliente.new(params[:cliente])
Finally, I added a hidden field to my form just to store the user_id
<%= form.simple_fields_for :prestamos do |f| %>
<%= f.input :monto %>
<%= f.input :user_id, as: :hidden %>
<% end %>
I'm creating my first nested form in Rails 3.2.13. User is registering and he fill email, password and address information and company information.. but the error is showing while user click on submit. Error is at the bottom.
Im not sure about this line: attr_accessible :address_attributes, :company_attributes
which i read it could help but it doesnt and i have addresses in the view but address in the model because of one-to-one relationship but if i have <%= f.fields_for :**address** do |builder| %> the form doesnt show up.
Please what i have to do ? :-)
The post sends then
"companies"=>{"name"=>"Companyname"
User model
class User < ActiveRecord::Base
attr_accessible ...
has_many :orders
belongs_to :address
belongs_to :company
accepts_nested_attributes_for :address, :company
attr_accessible :address_attributes, :company_attributes
Company model
class Company < ActiveRecord::Base
attr_accessible ...
has_many :users
validates_presence_of ...
end
Address model
class Address < ActiveRecord::Base
attr_accessible ...
has_many :orders, :foreign_key => 'payment_address_id'
has_many :orders, :foreign_key => 'delivery_address_id'
has_many :users
validates_presence_of ...
end
new.html.erb (creating new user)
<%= form_for #user do |f| %>
...
<%= f.fields_for :addresses do |builder| %>
...
<% end %>
<%= f.fields_for :companies do |builder| %>
...
<% end %>
<%= f.submit %>
<% end %>
error while i click on submit
Can't mass-assign protected attributes: addresses, companies
EDIT:
First mistake: i changed in Class User
belongs_to :address
belongs_to :company
on
has_one :address
has_one :company
and in Address and Company model i edit
has_many :users
on
belongs_to :user
but nested forms doesnt show up in the view.. i tried edit Users Controller by adding .build method
def new
#user = User.new
#user.company.build
#user.address.build
end
but im getting new error
undefined method `build' for nil:NilClass
please what i have to do now ?
I had a case like this a day ago, and that's what I used.
class User
attr_accessible :name, :email, :company_attributes, :address_attributes
has_one :company
accepts_nested_attributes_for :company
end
and EmailSetting:
class Company
belongs_to :user
end
after this I can run in console:
User.new.build_company
as for form:
<%= form_for #user do |f| %>
<%= f.fields_for :company do |builder| %>
<%= f.text_field :name %>
<% end %>
<% end %>
in controller you just initialize the #user variable, no need to do #user.company.build or #user.address.build
I'm rather new to Rails and I'm writing a signup form that includes nested models. When I submit the form, the user is saved just fine, but the nested model does not save anything to the Subscription db, and the console throws no errors.
I sincerely hope I'm not missing something insanely obvious, and I appreciate any tips you can share. Thanks!
Here is the code-
Models:
class Plan < ActiveRecord::Base
attr_accessible :posts, :name, :price
has_many :users
end
class User < ActiveRecord::Base
belongs_to :plan
has_many :events
has_one :subscription, :autosave => true
accepts_nested_attributes_for :subscription
attr_accessible :subscription_attributes
def save_with_payment
if valid?
customer = Stripe::Customer.create(
email:email,
plan: plan_id,
card: stripe_card_token )
self.stripe_customer_token = customer.id
save!
end
rescue Stripe::InvalidRequestError => e
logger.error "Stripe error while creating customer: #{e.message}"
errors.add :base, "There was a problem with your credit card."
false
end
end
class Subscription < ActiveRecord::Base
attr_accessible :plan_id, :status, :user_id
belongs_to :user
end
This is the User controller:
def new
#user = User.new
plan = Plan.find(params[:plan_id])
#user = plan.user
#user.build_subscription
end
def create
#user = User.new(params[:user])
if #user.save_with_payment
sign_in #user
flash[:success] = "Welcome to the SendEvent!"
redirect_to #user
else
render 'new'
end
end
This is the form:
<%= form_for #user, :html => {:class => "form-inline"} do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<div class="control-group">
<%= f.label :name, :class => "control-label" %>
<%= f.text_field :name %>
</div>
# A few more fields here and...
# The nested model:
<%= f.fields_for :subscription do |builder| %>
<%= builder.hidden_field :status, :value => true %>
<% end %>
<%= f.submit "Create my account", class: "btn btn-large btn-primary", id: "submitacct" %>
<% end %>
Sample app from RailsCasts
RailsCasts Episode #196: Nested Model Form (revised)
Maybe help you.
I am new to Rails 3 and having trouble with saving records in the Join table. I have been looking around and trying different examples found on this website and from the documentation or books, but I don't understand why I can't get it to work. I am trying to create Authorization by creating Roles and associate them to users. So far I have been trying to assign roles from the update action in the Users controller without prevail.
I have 3 models: the User.rb, role.rb, and assignment.rb (the join table)
class User < ActiveRecord::Base
has_many :assignments, :dependent => :destroy
has_many :roles, :through => :assignments, :foreign_key => :role_id
accepts_nested_attributes_for :roles
attr_accessor :password, :role_ids
attr_accessible :first_name, :last_name, :email, :password, :password_confirmation, :status, :description, :username, :roles_attributes
...
end
class Role < ActiveRecord::Base
has_many :assignments
has_many :users, :through => :assignments, :foreign_key => :user_id
accepts_nested_attributes_for :users
attr_accessible :name
end
class Assignment < ActiveRecord::Base
belongs_to :user
belongs_to :role
accepts_nested_attributes_for :roles
end
The Users controller in the update action I have the following
class UsersController < ApplicationController
...
def update
#user = User.find(params[:id])
if #user.update_attributes(params[:user])
#user.roles.build
flash[:success] = "Profile updated"
redirect_to #user
else
#title = "Edit" + " " + #user.username
render 'edit'
end
end
...
end
and in the 'edit' view page I intend to have checkboxes to update the User record with an associated role:
EDIT: Changed the "check_box" with "check_box_tag" ... the check boxes appear properly, but the values are not saved.
<%= form_for(#user) do |f| %>
...
<div class="field">
<%= f.label :roles %><br />
<%= f.fields_for :role_ids do |r| %>
<% #roles.each do |role| %>
<%= check_box_tag "user[roles][]", role.id, #user.roles.include?(role.id) %>
<%= role.name %>
<% end %>
<%= hidden_field_tag "user[roles][]", "" %>
<% end %>
</div>
<% end %>
With this code I even get an error where 'Roles' have no association.
EDIT: this was corrected with the accepts_nested_attributes_for :role. Thanks!
No association found for name `roles'. Has it been defined yet?
I am really confused where I am doing something wrong. Your help would be much appreciated.
Aurelien
You have to use the same name with "accepts_nested_attributes_for" as you used defining the association:
class Assignment < ActiveRecord::Base
belongs_to :user
belongs_to :role
accepts_nested_attributes_for :role
end
Finally solved the problems and thought I could share.
The models associations but I did change the attr_accessible:
class User < ActiveRecord::Base
has_many :assignments, :dependent => :destroy
has_many :roles, :through => :assignments, :foreign_key => :role_id
accepts_nested_attributes_for :roles
attr_accessor :password
attr_accessible ..., :roles_ids
...
end
In the User controller for the edit and update action.
def edit
#title = "Edit" + " " + #user.username
#roles = Role.find(:all)
#user.assignments.build
end
def update
#user = User.find(params[:id])
if #user.update_attributes(params[:user])
flash[:success] = "Profile updated"
redirect_to #user
else
#title = "Edit" + " " + #user.username
render 'edit'
end
end
The important part was the view part and assigning the right names for the checkbox tags
<%= form_for(#user) do |f| %>
<div class="field">
<%= f.label :roles %><br />
<%= f.fields_for :role_ids do |r| %>
<% #roles.each do |role| %>
<%= check_box_tag "user[role_ids][]", role.id, #user.roles.include?(role) %>
<%= role.name %>
<% end %>
<%= hidden_field_tag "user[role_ids][]", #user.id %>
<% end %>
</div>
The check_box_tag lets the form save an array and gives more control than check_box
Then in order to assign the multiple Role ids, the name of the check_box_tag should include user[roles_ids][].
Finally the last parameter of the check_box_tag returns if the User has already the roles and checks the checkboxes if true.
I must admit that the name part of the check_box_tags is really confusing but it works :).
I have a form attached to profiles where short comments can be submitted. I want to capture the author's name though so I can display it in a tooltip when hovering over the comment's body.
In my create method in the controller I have:
def create
#comment = Comment.new(params[:comment])
#comment.save!
redirect_to profile_path(#comment.profile)
end
Inside my migration:
t.timestamps
t.integer :profile_id
t.string :author_id
t.string :body
Profile model:
belongs_to :user
accepts_nested_attributes_for :user
has_many :comments
Comment model:
belongs_to :profile
ProfilesController:
def show
#user = User.find(params[:id])
#profile = user.profile
#superlative = #profile.superlatives.new
end
And my form:
<%= form_for #comment do |f| %>
<%= f.hidden_field :profile_id, :value => #profile.id %>
<%= f.hidden_field :author_id, :value => "#{current_user.profile.first_name} #{current_user.profile.last_name}" %>
<%= f.text_field :body %>
<%= f.submit 'Add new' %>
<% end %>
I was thinking of linking the :author_id to current_user.profile.id and using that association to display :first_name and :last_name which are attributes of the profile. Or is there a simpler, better way?
UPDATE: I got it to display the name though I'm still curious if there's a better way.
Your solution looks fine, but I'd store the User (or whatever class current_user returns) instead of the Profile:
In app/models/comment.rb:
class Comment < ActiveRecord::Base
belongs_to :profile
belongs_to :author, :class_name => "User", :foreign_key => "author_id"
... rest of the code ...
end
You then change your migration to:
t.integer :author_id
and your controller method to:
def create
#comment = Comment.new(params[:comment].merge(:author_id => current_user.id))
#comment.save!
redirect_to profile_path(#comment.profile)
end
In your view (I used the title attribute do create a tooltip, but feel free to use whatever method you like):
<div class="comment" title="<%= #comment.author.profile.first_name %> <%= #comment.author.profile.last_name %>">
<%= #comment.body %>
</div>
I would suggest something like this:
In your routes.rb create a nested resource for comments
resources :users do
resources :comments
end
In your User model
class User
has_many :comments
end
In your Comment model
class Comment
belongs_to :user
end
In your CommentsController in the new and create methods
#comment = User.find(params[:user_id]).comments.new(params[:comment])
So the comment automagically gets created as belonging to that User and you don't have to pass anything around.
Then, in your Comment view, you could just call its owners name
#comment.user.first_name