I have a User model as below,
class User < ActiveRecord::Base
devise :database_authenticatable, :registerable
has_many :company_users
accepts_nested_attributes_for :company_users, :allow_destroy => true
has_many :companies, :through => :company_users
has_many :roles, :through => :company_users
end
and its associated model CompanyUser as below,
class CompanyUser < ActiveRecord::Base
belongs_to :user
belongs_to :company
belongs_to :role
end
I am trying to build the associations as below but it seems like not working
# GET /users/new
def new
#user = User.new
#user.company_users.build
end
View file is as follows,
<%= form_for(#user) do |f| %>
<div class="field">
<%= f.label :name %><br>
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :email %><br>
<%= f.text_field :email %>
</div>
<h3>Companies and Roles</h3>
<div class="field">
<% f.fields_for :company_users do |cu| %>
<p>
<%= cu.label :company_id %>
<%= cu.text_field :company_id%>
<%= cu.label :role_id %>
<%= cu.text_field :role_id %>
<%= cu.check_box :_destroy %>
<%= cu.label :_destroy, 'delete' %>
</p>
<% end %>
<p>
<%= f.submit 'Add to user', :name => "add_company_user" %>
<%= f.submit 'Delete from user', :name => "remove_company_user" %>
</p>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
I am trying to figure out where it is going wrong.
You are missing a =, therefore the fields_for block isn't rendered to the page. Change this line
<% f.fields_for :company_users do |cu| %>
to
<%= f.fields_for :company_users do |cu| %>
Related
I have two models in my app: "WorkPost" and "Contacts".
WorkPost
class WorkPost < ActiveRecord::Base
has_one :contacts
end
Contacts
class Contacts < ActiveRecord::Base
belongs_to :work_post
end
In my controller's new method I do:
def new
#work_post = WorkPost.new
#work_post.contacts
end
And in view I create form:
<%= form_for(#work_post) do |f| %>
<div class="field">
<%= f.label 'Vacation' %><br>
<%= f.text_field :post_title, :placeholder => 'Vacation here' %>
</div>
<div class="field">
<%= f.label 'Vacation description' %><br>
<%= f.text_area :post_body, :placeholder => 'Vacation description here' %>
</div>
<% f.fields_for :contacts do |cf| %>
<div class="field">
<%= cf.label 'Email' %><br>
<%= cf.text_field :emails, :placeholder => 'Email here' %>
</div>
<% end %>
<div class="actions">
<%= f.submit "Post vacation", :class => 'btn_act' %>
</div>
<% end %>
But it seems like line <% f.fields_for :contacts do |cf| %> doesn't work.
Everything is rendered fine but email field.What I am doing wrong?
The problem is with this line
<% f.fields_for :contacts do |cf| %>
which should be
<%= f.fields_for :contact do |cf| %>
Also, the class name for the model and the association name for has_one/belongs_to should be singular.
#work_post.rb
class WorkPost < ActiveRecord::Base
has_one :contact #should be singular
end
#contact.rb
class Contact < ActiveRecord::Base #should be singular
belongs_to :work_post
end
Also, notice the change :contacts to :contact, as it is a has_one association.
Update:
Also, try the below changes
Include accepts_nested_attributes_for :contact in work_post.rb model
#work_post.rb
class WorkPost < ActiveRecord::Base
has_one :contact
accepts_nested_attributes_for :contact
end
Change the new method to below
def new
#work_post = WorkPost.new
#work_post.build_contact
end
I have scoured all the other questions relating to this topic here, but I am still having this problem. I have a nested form inside a nested form. Answer choices are inside questions which are inside survey. I had no problem setting up the questions, and they save fine. The Answer choices, though, are not saving, and I cannot figure out where I am going wrong.
survey.rb
class Survey < ActiveRecord::Base
belongs_to :author
has_many :questions, dependent: :destroy
has_many :forms, dependent: :destroy
has_many :answer_choices, through: :question
validates :name, uniqueness: true
accepts_nested_attributes_for :questions, reject_if: proc { |attributes| attributes['text'].blank?},
allow_destroy: true
end
question.rb
class Question < ActiveRecord::Base
belongs_to :survey
has_many :responses, dependent: :destroy
has_many :answer_choices, dependent: :destroy
accepts_nested_attributes_for :answer_choices, reject_if: proc { |attributes| attributes['content'].blank?},
allow_destroy: true
end
answer_choice.rb
class AnswerChoice < ActiveRecord::Base
belongs_to :question
end
survey_controller.rb
def new
#survey = Survey.new(author_id: session[:user_id])
#survey.questions.build
#survey.questions.each { |question| 4.times { question.answer_choices.build }}
end
def edit
#survey.questions.build
#survey.questions.each { |question| 4.times { question.answer_choices.build }}
end
def survey_params
params.require(:survey).permit(:name, :description, :author_id,
questions_attributes: [:id, :text, :required, :response_type,
:_destroy, :number])
end
_form.html.erb
<%= form_for(#survey) do |f| %>
<% if #survey.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#survey.errors.count, "error") %> prohibited this survey from being saved:</h2>
<ul>
<% #survey.errors.full_messages.each do |message| %>
<li><%= message %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :name %><br>
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :description %><br>
<%= f.text_field :description %>
</div>
<div class="field">
<%= f.hidden_field :author_id %>
</div>
<h2>Questions</h2>
<%= f.fields_for(:questions) do |ff| %>
<%= render 'questions', :f => ff %>
<% end %>
<div class="actions">
<%= f.submit 'Submit Question'%>
</div>
<div class="actions">
<%= link_to 'Finish Survey', surveys_path %>
</div>
<% end %>
_questions.html.erb
<div>
<span><%= f.index + 1 %>. </span>
<div class="field">
<%= f.hidden_field :number, value: f.index + 1 %>
</div>
<div class="field">
<%= f.label :text, "Question" %><br>
<%= f.text_field :text %>
</div>
<div class="field">
<%= f.label :response_type %><br>
<%= f.select :response_type, [["Yes/No", "yes/no"], ["Short Answer", "string"], ["Long Answer", "text"], ["Multiple Choice", "multi"]] %>
</div>
<div class="field">
<%= f.label :required %>
<%= f.check_box :required %>
</div>
<div>
<p>Answer Choices</p>
<%= f.fields_for(:answer_choices) do |ff| %>
<%= render 'answer_choices', :f => ff %>
<% end %>
</div>
<div class="field">
<%= f.label :_destroy %>
<%= f.check_box :_destroy %>
</div>
</div>
_answer_choices.html.erb
<div class="field">
<%= f.label :content %><br>
<%= f.text_field :content %>
</div>
<div class="field">
<%= f.label :_destroy %>
<%= f.check_box :_destroy %>
</div>
A few changes in your code.
Change your new method like this
def new
#survey = Survey.new(author_id: session[:user_id])
#questions = #survey.questions.build
#answer_choices = 4.times { #questions.answer_choices.build }
end
Your survey_params should look like this
def survey_params
params.require(:survey).permit(:name, :description, :author_id,
questions_attributes: [:id, :text, :required, :response_type,
:_destroy, :number, answer_choices_attributes: [:id,:content,:_destroy]])
end
And in your form code, change these lines
<%= f.fields_for(:questions) do |ff| %>
<%= f.fields_for(:answer_choices) do |ff| %>
into
<%= f.fields_for #questions do |ff| %>
<%= f.fields_for #answer_choices do |ff| %>
I am learning RoR and i am trying to find how to set a fields_for in another one with has_one models like this:
class Child < ActiveRecord::Base
belongs_to :father
accepts_nested_attributes_for :father
end
class Father < ActiveRecord::Base
has_one :child
belongs_to :grandfather
accepts_nested_attributes_for :grandfather
end
class Grandfather < ActiveRecord::Base
has_one :father
end
I used Nested Model Form Part 1 on Railscasts to get these:
In children_controller.rb:
def new
#child = Child.new
father=#child.build_father
father.build_grandfather
end
def child_params
params.require(:child).permit(:name, father_attributes:[:name], grandfather_attributes:[:name])
end
And my form:
<%= form_for(#child) do |f| %>
<div class="field">
<%= f.label :name %><br>
<%= f.text_field :name %>
</div>
mother:<br>
<%= f.fields_for :father do |ff| %>
<%= ff.label :name %>
<%= ff.text_field :name %><br>
grand mother:<br>
<%= f.fields_for :grandfather do |fff| %>
<%= fff.label :name %>
<%= fff.text_field :name %>
<% end %>
<% end %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
I am trying to retrieve the datas with:
<%= child.father.name %>
<%= child.father.grandfather.name %>
but the grandfather's name won't work.
I cannot find the mistake(s)...anyone to help on this?
Thanks!
Try switching:
<%= f.fields_for :grandfather do |fff| %>
to:
<%= ff.fields_for :grandfather do |fff| %>
And switching:
params.require(:child).permit(:name, father_attributes:[:name], grandfather_attributes:[:name])
To:
params.require(:child).permit(:name, father_attributes:[:name, grandfather_attributes:[:name]])
I have a model Contact which has a many-to-many relationship with Company:
class Contact < ActiveRecord::Base has_many :contactcompanies
has_many :companies, through: :contactcompanies
Company model:
class Company < ActiveRecord::Base
has_many :contactcompanies
has_many :contacts, through: :contactcompanies
ContactCompany:
class ContactCompany < ActiveRecord::Base
belongs_to :company
belongs_to :contact
contacts_controller.rb:
def new
#contact = Contact.new
#all_companies = Company.all
#contact_company = #contact.contactcompanies.build
end
contact create form where I want to have a multiple select for companies:
<%= form_for #contact do |f| %>
<%= f.label :first_name %>
<%= f.text_field :first_name %>
<%= f.label :last_name %>
<%= f.text_field :last_name %>
<%= f.label :image_url %>
<%= f.text_field :image_url %>
<%= f.label :email %>
<%= f.text_field :email %>
<%= fields_for(#contact_company) do |cc| %>
<%= cc.label "All Companies" %>
<%= collection_select(:companies, :id, #all_companies, :id, :name, {}, { :multiple => true }) %>
<% end %>
<div class="form-action">
<%= f.submit nil, :class => 'btn btn-primary' %>
<%= link_to t('.cancel', :default => t("helpers.links.cancel")),
contacts_path, :class => 'btn' %>
</div>
<% end %>
My issue is when I go to /contacts/new I get this error:
Circular dependency detected while autoloading constant Contactcompany
Any ideas? I'm searching for hours without success. Thanks
You have declared your class as "ContactCompany"
This implies:
has_many :contact_companies
has_many :contacts, through: :contact_companies
Without the underscore, it is looking for a class named Contactcompany, which does not exist.
I'm having real trouble getting my head around editing attributes in has_many through join models. I've set up a very simple app to experiment with; Recipes, Ingredients and Recipe_Ingredients (the join).
Can anyone help with making this work as it should? As it is, it'll pulling through 'qty' from the join model, but not the actual ingredient.
I've put a public repo up that anyone can download to play with: https://github.com/EssentialMusic/Recipes
The models:
class Ingredient < ActiveRecord::Base
attr_accessible :name
has_many :recipe_ingredients, :dependent => :destroy
has_many :recipes, :through => :recipe_ingredients
end
class Recipe < ActiveRecord::Base
attr_accessible :author, :description, :name, :recipe_ingredients_attributes, :ingredients_attributes
has_many :recipe_ingredients, :dependent => :destroy
has_many :ingredients, :through => :recipe_ingredients
accepts_nested_attributes_for :ingredients, :reject_if => lambda { |a| a[:name].blank? }, :allow_destroy => :true
accepts_nested_attributes_for :recipe_ingredients
end
class RecipeIngredient < ActiveRecord::Base
belongs_to :recipe
belongs_to :ingredient
attr_accessible :measure, :qty, :special_instructions
end
The form
<%= form_for(#recipe) do |f| %>
<% if #recipe.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(#recipe.errors.count, "error") %> prohibited this recipe from being saved:</h2>
<ul>
<% #recipe.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.label :name %><br />
<%= f.text_field :name %>
</div>
<div class="field">
<%= f.label :author %><br />
<%= f.text_field :author %>
</div>
<div class="field">
<%= f.label :description %><br />
<%= f.text_area :description %>
</div>
<div>
<%= f.fields_for :recipe_ingredients do |ri| %>
<%= ri.text_field :qty %> -
<%= ri.fields_for :ingredients do |i| %>
<%= i.text_field :name %><br>
<% end %>
<% end %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
Cheers!!
Substitute the ri with f in the second nested fields_for like this:
<%= f.fields_for :recipe_ingredients do |ri| %>
<%= ri.text_field :qty %> -
<%= **f**.fields_for :ingredients do |i| %>
<%= i.text_field :name %><br>
<% end %>
<% end %>