I'm using basic scaffold structure. What I need, is to add 'moderate' action and view by changing published to true. In my idea, on moderate.html I should get the list of all unpublished entries with the ability to change and save their parameters.
Here are parts of my code:
#names_controller.rb
def moderate
#name = Name.find(:all, :conditions => {:published => false} )
respond_to do |format|
format.html
format.xml
end
end
#moderate.html.erb
<% form_for #name.each do |f| %>
<%= f.error_messages %>
<%= f.text_field :which %>
<%= f.text_field :what %>
<%= f.check_box :published %>
<%= f.submit %>
</p>
<% end %>
Instead I'm getting this error:
NoMethodError in Names#moderate
Showing app/views/names/moderate.html.erb where line #1 raised:
undefined method `enumerable_enumerator_path' for #<ActionView::Base:0x1042c3e90>
Extracted source (around line #1)
So, can you help to newbie please?
ruby 1.8.7 (2009-06-12 patchlevel 174)
[universal-darwin10.0] Rails 2.3.5
If you want to update each name in a separate form, then all you need to do is move the loop above form_for:
<% #name.each do |n| %>
<% form_for n do |f| %>
<%= f.error_messages %>
<%= f.text_field :which %>
<%= f.text_field :what %>
<%= f.check_box :published %>
<%= f.submit %>
</p>
<% end %>
<% end %>
But if you'd like to do it all in one submit (a single form) then I guess you can't use form_for. I'd use form_tag to create a custom form to update multiple instances. This should work both for create and edit form:
<%= form_tag moderate_names_path do %>
<% #names.each do |name| %>
<fieldset>
<%= fields_for "name[#{name.id}]", name do |name_fields| %>
<p><%=name_fields.label(:this)%>: <br /><%= name_fields.text_field :this %></p>
<p><%=name_fields.label(:that)%>: <br /><%= name_fields.text_field :that %></p>
<p><%= name_fields.check_box :published %> <%=name_fields.label(:published)%></p>
<% end %>
</fieldset>
<br />
<% end %>
<%= submit_tag %>
<% end %>
NOTICE: I changed #name to #names in the second example
Related
I'm following a tutorial, and i get this error when i try to add f.hidden_field tag in my form.
undefined local variable or method 'f'
<h1>Signing up for "<%= #subscription.plan.name %>"</h1>
<%= f.hidden_field :paypal_customer_token %>
<%= f.hidden_field :paypal_payment_token %>
<% if #subscription.paypal_payment_token.present? %>
<H1>Payment has been provided </H1>
<% else %>
<div class="field">
<%= radio_button_tag :pay_with, :paypal %>
<%= label_tag :pay_with_paypal do %>
<%= image_tag "paypal.png" %>
<% end %>
<%= link_to "paypal.png", paypal_checkout_path(:plan_id => #subscription.plan_id) %>
<% end %>
Either that tutorial is broken or you missed the line where they do something like this:
<%= form_for #subscription do |f| %>
i'm new to ruby on rails and I keep getting this error when trying to update an object.
here's my controller:
class SetorController < ApplicationController
def index
#setor = Setor.all
end
def new
end
def show
#setor = Setor.find(params[:id])
end
def create
#setor = Setor.new(setor_params)
#setor.save
redirect_to #setor
end
def edit
#setor = Setor.find(params[:id])
end
def update
#setor = Setor.find(params[:id])
if (#setor.update(setor_params))
redirect_to #post
else
render 'edit'
end
end
private def setor_params
params.require(:setor).permit(:nome, :sigla, :cnpj)
end
end
this is the index page - where I link to edit the object:
<%= #setor.each do |s| %>
<%= s.nome %> |
<%= s.sigla %> |
<%= s.cnpj %> |
<%= link_to "edit", edit_setor_path(s.id) %> <br>
<% end %>
and this is the update form:
<h1> Editar Setor </h1>
<%= form_for :setor, url: setor_path(:update) do |f| %>
<p>
<%= f.label :nome %>
<%= f.text_field :nome %> <br>
<%= f.label :sigla %>
<%= f.text_field :sigla %> <br>
<%= f.label :cnpj %>
<%= f.text_field :cnpj %> <br>
</p>
<%= f.submit %>
<% end %>
what am I missing?
Thanks!
First, make sure you have a route that matches edit_setor_path. You can do this by running rails routes in your terminal or by going to the url localhost:3000/rails/info/routes in your browser.
On your index page, you have the following:
<%= link_to "edit", edit_setor_path(s.id) %> <br>
You do not need to pass in the id of the s object. Rails will figure this out on its own. Instead, just pass in the object:
<%= link_to "edit", edit_setor_path(s) %> <br>
Change #setor in the index action of your SetorController to #setors and change #setor in your index.html.erb file to #setors.
Change the :sector in your edit.html.erb to #setor. You can also remove url: setor_path(:update) from the edit.html.erb form.
These changes follow Rails conventions. You should try to follow Rails conventions as much as possible, especially when just learning Rails.
Try to mention #setor object in the form code:
<%= form_for #setor do |f| %>
How about trying something like this:
Rename your controller to setors_controller.rb and change the class name to SetorsController -- this is to follow the typical Rails naming convention.
Then make sure you have a route:
# config/routes.rb
Rails.application.routes.draw do
resources :setors
end
Update your view's form_for tag to use the instance variable set up in the controller:
# app/views/setors/edit.html.erb
# NOTE: folder path above... "setor" is now "setors" to follow the Rails convention
<%= form_for #setor do |f| %>
<p>
<%= f.label :nome %>
<%= f.text_field :nome %> <br>
<%= f.label :sigla %>
<%= f.text_field :sigla %> <br>
<%= f.label :cnpj %>
<%= f.text_field :cnpj %> <br>
</p>
<%= f.submit %>
<% end %>
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>
I am trying to render a partial on a page in rails. For some reason the code is not being rendered into html. I have tried taking it out of the partial and just placing it in the profile page but still nothing. I am getting no errors and have restarted the server but still nothing. This is in development mode. Also all code except the message code works fine. Any help would be appreciated. Here is the code.
profile.html.erb
<% unless #pictures.nil? %>
<div id="container" style="width: 500px; height: 450px;">
<div id="slides">
<% #pictures.each do |picture| %>
<%= image_tag(picture.image.url(:thumbnail)) %>
<% end %>
<%= image_tag("left.png") %>
<%= image_tag("right.jpeg") %>
</div>
</div>
<% end %>
<% render 'message' %>
_message.html.erb
<% form_for #message, :url => messages_create_path do |f| %>
<% f.hidden_field :from, value: current_user.id %>
<% f.hidden_field :to, value: #user.id %>
<% f.text_area :message %><br />
<% f.submit "Send Message" %>
<% end %>
To make your form_for code block to render you need to use <%= tag as follows:
<%= form_for #message, :url => messages_create_path do |f| %>
<% f.hidden_field :from, value: current_user.id %>
<% f.hidden_field :to, value: #user.id %>
<% f.text_area :message %><br />
<% f.submit "Send Message" %>
<% end %>
To elaborate on vinodadhikary's answer, ERB has output tags and evaluation tags. To evaluate something you would use <% expression %>, and to output you would use <%= output.me %>. The earlier is usually used for flow control in templates, and outputs nothing. The output happens within after a decision is made. The latter is used to output stuff.
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 %>