I have the following for and partial setup but i keep on getting an error, that the partial does not recognise the variable |builder|.
Form
<%= simple_form_for #firm do |f| %>
<%= f.fields_for :events do |builder| %>
<%= render 'event_fields', :builder => builder %>
<% end %>
<%= end %>
_events_fields partial
<fieldset>
<%= builder.input :name, :collection => ['Applications Open', 'Applications Close', 'Traineeship Starts'] %>
<%= builder.text_field :start_at, :class => 'datepicker' %>
<%= builder.hidden_field :all_day, :value => true %>
<%= link_to "remove", '#', class: "remove_fields" %>
any idea how i should be padding the variable across? or if in fact this is the correct way of doing it? It would be really helpful is someone could help me understand a little more about how and why you need to do this.
You need to tell it that it is a partial view and pass in a hash to the locals option. Like so:
<%= simple_form_for #firm do |f| %>
<%= f.fields_for :events do |builder| %>
<%= render partial: 'event_fields', locals: {builder: builder} %>
<% end %>
<% end %>
If you're using Ruby 1.8 then:
<%= simple_form_for #firm do |f| %>
<%= f.fields_for :events do |builder| %>
<%= render :partial => 'event_fields', :locals => { :builder => builder } %>
<% end %>
<% end %>
partial_name would be replace with actual partial name or partial name with directory name.
We would provide the data_object object to the partial, available under the local variable data_variable in the partial and is equivalent to:
<%= render partial: "partial_name", locals: { data_variable: data_object } %>
Related
I am trying to save parent as well as child object at the same time using accepts_nested_attributes_for
Code in controller's new method:
def new
#project = Project.new
#project.instances.build
end
and form looks like this:
<%= simple_form_for(#project) do |f| %>
<%= f.input :name %>
<%= link_to "Add New Instance", new_project_instance_path(#project), id: "new_link", remote: true %>
<% end %>
The route entry for this is:
resources :projects do
resources :instances
end
And the fields that need to be displayed instances/_form.html.erb:
<%= form.simple_fields_for :instances do |i| %>
<%= i.input :user_id %>
<%= i.input :password %>
<%= i.input :service_url %>
<% end %>
The issue here project_id being :nil, it is giving error:
No route matches {:action=>"new", :controller=>"instances", :project_id=>nil} missing required keys: [:project_id]
I need to somehow call <%= render 'cdd_instances/form', form: f %>, so that the fields get rendered below the Project details, how should I implement this?
I think your #project is null you have to pass like:
new_project_instance_path(project_id: (#project || ''))
In this case you are not able to pass non-persisted #project to create this link_to url.
I believe you are looking for something like: cocoon.
<%= simple_form_for #project do |f| %>
<%= f.input :name %>
<h3>Instances</h3>
<div id="instances">
<%= f.simple_fields_for :instances do |instance| %>
<%= render 'instance_fields', f: instance %>
<% end %>
<div class="links">
<%= link_to_add_association 'add instance', f, :instances %>
</div>
</div>
<%= f.submit %>
<% end %>
Cheers!
I have partial file _form.erb.html:
<p>Name: </p><%= f.text_field :name %>
<p>Description: </p><%= f.text_field :description %>
<p>Price: </p><%= f.text_field :price %>
<p>Weight: </p><%= f.text_field :weight %>
and view file items/new.html.erb:
<h1>New item</h1>
<%= form_for #item do |f| %>
<% render partial: 'form', locals: { :f => f} %>
<p><%= f.submit 'Create' %></p>
<% end %>
But, when I go to the 0.0.0.0:3000/items/new I see a page without a form and no errors displayed. What I'm doing wrong?
You are missing the =. It should be <%= render partial: 'form', locals: { :f => f} %>
The following is the Rails std form that works.
<div id="content-form">
<%= form_for #passion, url: passion_path do |f| %>
<%#= render :partial => "form", :f => f %>
<div class="alternate">
<%= f.label "Status" %>
<%= f.text_field :status %>
</div>
<% end %>
</div>
Now I extract the partial to _form.html.erb with the following:
<div class="alternate">
<%= f.label "Status" %>
<%= f.text_field :status %>
</div>
And update the form as:
<div id="content-form">
<%= form_for #passion, url: passion_path do |f| %>
<%= render :partial => "form", :f => f %>
<% end %>
</div>
But now this throws an error complaining about the f variable.
undefined local variable or method `f' for #<#<Class:0x0000012d51d3e8>:0x0000012d796ef8>
Extracted source (around line #2):
1: <div class="alternate">
2: <%= f.label "Status" %>
3: <%= f.text_field :status %>
4: </div>
Why is this? Its pretty Rails basic.
One thing to consider that the resource #passion is singular. i.e. resource :passion (user has_one passion)
Due to that, I've to use explicit url: passion_path in the form_for ....
Btw, using Rails 3.2.9
try this
<div id="content-form">
<%= form_for #passion, url: passion_path do |f| %>
<%= render :partial => "form", :locals=>{:f => f } %>
<% end %>
</div>
You are using the :partial option, which means you have to pass local variables in with :locals:
<%= render :partial => "form", :locals => { :f => f } %>
The less verbose option is:
<%= render "form", :f => f %>
This is probably simple, I'm still coming to terms with rails syntax. What is the right syntax to pass the address_id in the url for form_for to a modified route?
This is the form - note the "address_id parameter"
<div class="one_fourth floatcenter">
<%= form_for address, :url => edit_address_path(:id => address.id), :method => :get do |f| %>
<%= content_tag(:button, :class => 'btn btn-inverse') do %> Edit Address
<% end %>
<% end %>
</div>
And this is the route I've configured:
get "edit_address/:id" => "member/addresses#edit"
Id is not being passed to the controller for some reason...
form_for address should be enough if address is a persisted object, but if it's not enough, then form_for address, url: edit_address_path(address) is what you want.
This is very simple. In place of url, you put your post method route:
<%= form_for(#post, url: super_posts_path) do |f| %>
...
<% end %>
You also call by action
<%= form_for #friend,:url=> { action: "create_friend"} do |f|%><br>
<%= f.label :u_from %>
<%= f.text_field :u_from %>
<%= f.label :u_to %>
<%= f.text_field :u_to %>
<%= f.submit%>
<% end %>
For example, if in my 'edit.html.erb' file I have this:
<%= form_for(#pjt_user) do |f| %>
...
<%= fields_for(:new_pjt_user) do |b| %>
<%= b.label :new_password %>
<%= b.text_field :new_password %>
<% end %>
...
<% end %>
How can I "pre-populate"/"fill" the field 'new_password' (in 'fields_for(:new_pjt_user)') passing a parameter with a render action? I aim to avoid to store password in session.
Instead of render :action you have to use render :template so you can use the :locals hash:
render :template => "pjt_users/new", :locals => { :default_password => DEFAULT_PASSWORD }
and
<%= fields_for(:new_pjt_user) do |b| %>
<%= b.label :new_password %>
<%= b.text_field :new_password, :value => default_password %>
<% end %>