I am trying to make a multi step sign up form using wicked gem.
But when try a nested render. im getting an error like
undefined local variable or method `f' for
<#:0x007f1d11128718>
new.html.erb
<%= render 'form', name: #name do %>
<%= render 'form_first_name' %>
<% end %>
<%= link_to 'Back', names_path %>
_form.html.erb
<%= form_for(name) do |f| %>
<%= yield %>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
_form_first_name.html.erb
<div class="field">
<%= f.label :first_name %>
<%= f.text_field :first_name %>
</div>
Related
I use the following form_for at one point in my code to display a series of topics for users to select from.
<%= form_for #user do |f| %>
<%= f.collection_check_boxes(:topic_ids, Topic.all.sample(50).each, :id, :topic_name) %>
<%= f.submit %>
<% end %>
When it renders on the page, the boxes are all one-after-the-other. How can I separate them so that there is one check box per line?
from reference here
It is possibly to customize the way the elements will be shown by giving a block to the method as sample below from your code above
<%= form_for #user do |f| %>
<%= f.collection_check_boxes :topic_ids, Topic.all.sample(50).each, :id, :topic_name do |b| %>
<%= b.label(class: "check_box") do %>
<%= b.check_box(class: "check_box") %>
<%= b.object.topic_name %></br>
<% end %>
<% end %>
<%= f.submit %>
<% end %>
You may of course render HTML inside the block:
<%= form_for #user do |f| %>
<%= f.collection_check_boxes :topic_ids, Topic.all.sample(50).each, :id, : topic_name do |b| %>
<div class="my-checkbox-wrapper">
<%= b.label(class: "foo") do %>
<%= b.object.topic_name %>
<%= b.check_box(class: "bar") ></br>
<%end%>
<%= f.submit %>
<%end%>
You can have a look at this example
It is very broad question. In short, using CSS.
For example using Bootstrap 4:
<%= form_for #user do |f| %>
<div class="form-check">
<%= f.collection_check_boxes :topic_ids, Topic.all.sample(50).each, :id, :topic_name, class: 'form-check-input' %>
</div>
<%= f.submit %>
<% end %>
I have a nested form which works perfectly fine, however, I'm trying to figure out how to split that nested form into a partial.
original form:
<%= form_for(#user) do |f| %>
<%= f.fields_for :achievements, Achievement.new do |ff| %>
<div class="field">
<%= ff.label :certification_name, 'Cert Name' %>
<%= ff.text_field :certification_name %>
</div>
<% end %><!-- fields_for -->
<%= f.submit 'Save', id: "submit-achievement", class: 'btn btn-primary' %>
Here's what I'm trying to do....
<%= form_for(#user) do |f| %>
<%= f.fields_for :achievements, Achievement.new do |ff| %>
<%= render partial: 'achievements/new_certification' %>
<% end %><!-- fields_for -->
<%= f.submit 'Save', id: "submit-achievement", class: 'btn btn-primary' %>
here's the partial.
<div class="field">
<%= ff.label :certification_name, 'Cert Name' %>
<%= ff.text_field :certification_name %>
</div>
the problem is that it doesn't know what to do with the 'ff' variable.
ActionView::Template::Error (undefined local variable or method `ff' for #<#<Class:0x007fdccd5498c0>:0x007fdcc04894d8>):
You can achieve this by passing a local variable to your partial like so:
<%= render partial: 'achievements/new_certification', locals: {ff: ff} %> # not a fan of the naming
Then in achievements/_new_certification.html.erb
<div class="field">
<%= ff.label :certification_name, 'Cert Name' %>
<%= ff.text_field :certification_name %>
</div>
Documentation on partials
I have the following code in my
new.html.erb
<%= form_tag puppies_path do %>
<% #kennel.each do |puppy| %>
<%= fields_for 'puppies[]', puppy do |p| %>
<div class="field">
<%= p.label :name %><br>
<%= p.text_field :name %>
</div>
<div class="field">
<%= p.label :breed %><br>
<%= p.text_field :breed %>
</div>
<% end %>
<% end %>
<div class="actions">
<%= submit_tag %>
</div>
<% end %>
And puppies[] array variable, which is supposed to post array of objects to controller is posting only single object. Please help to post an array to controller. Thanks in advance!
The usual setup for fields_for is something like this.
<% #kennel.each do |kennel| %>
<%= fields_for :puppies, #kennel.puppies do |p| %>
Yes, I have just found an answer...
In new.html.erb file
<%= form_tag puppies_path do %>
<% 2.times do %>
<%= render 'puppies_group_form' %><br>
<% end %>
<%= submit_tag "Submit" %>
<% end %>
In _puppies_group_form
Name <%= text_field_tag "puppies[][name]" %>
Breed <%= text_field_tag "puppies[][breed]" %>
I am using OpenStruct form for in my view like the following,
<%= form_for(OpenStruct.new(params[:f]), as: :f, url: product_types_path, method: :get, remote: true, html: {class: 'type'}) do |f| %>
<div class="field">
<%= f.label :product_type_id %>
<%= foreign_key(f, :product_type_id, Asset::Product::Type) %>
</div>
<% end %>
I want to hide the other form elements if product_type_id is nil or blank or empty?
I tried this,
<% unless product_type_id.blank? %>
<div class="field">
<%= render 'form' %>
</div>
<% else %>
<p>Select Product Type</p>
<% end %>
So if I got it right what you want to do is not to render the form if what you received with the param product_type_id is blank.
Is it possible for you to instatiate the variable in the controller instead of defining it directly in the form builder?
For instance in your controller:
def index
#product_type = OpenStruct.new(params[:f])
end
and in your view:
<% unless #product_type.product_type_id.blank? %>
<div class="field">
<%= render 'form', product_type: #product_type %>
</div>
<% else %>
<p>Select Product Type</p>
<% end %>
and finally your partial:
<%= form_for(product_type), as: :f, url: product_types_path, method: :get, remote: true, html: {class: 'type'}) do |f| %>
<div class="field">
<%= f.label :product_type_id %>
<%= foreign_key(f, :product_type_id, Asset::Product::Type) %>
</div>
<% end %>
How do you add a field set to a form_for method?
You can use field_set_tag. For example, using a generic 'user' object
For Rails 2.3.x
<% form_for(#user) do |f| %>
<% field_set_tag 'Name' do %>
<%= f.text_field :first_name %>
<%= f.text_field :last_name %>
<% end %>
<% end %>
And for Rails 3.0.0:
<%= form_for(#user) do |f| %>
<%= field_set_tag 'Name' do %>
<%= f.text_field :first_name %>
<%= f.text_field :last_name %>
<% end %>
<% end %>
You need to have a new object or get an existing object from your dc since it is a 'form for' and then you create a form builder f and call methods on that form builder such as the following:
<% form_for(#object) do |f| %>
<%= f.text_field :method_name %>
<% end %>