CODEWITHSUNDEEP
ruby-on-railsrubyruby-on-rails-4railstutorial.org
Rob
Rob

Reputation: 1855

Rendering error messages not working on just one page

I can't get error messages to display on this page. They display fine for any other page but not this one

mod_approval.index.html.erb

<%  @check_category.each do |category| %>

 <%= form_for([@guide, Guide.friendly.find(@guide.id).categories.new], url: guide_mod_panel_approve_category_path, method: :post) do |f| %>
       <%= render 'shared/error_messages', object: f.object %>
       <%= hidden_field_tag :check_id, category.id %>
       <%= f.hidden_field :name, :value => category.name %>
       <%= f.submit "Approve"  %>
 <% end %>
<% end %>

mod_approval_controller

def mod_add_category

    @guide          = Guide.friendly.find(params[:guide_id])
    @check_category = CheckCategory.where(guide_id: @guide.id).all
    @category       = Guide.friendly.find(@guide.id).categories.new(category_params)

      if @category.save 

     flash[:success] = "Game category added succesfully!"
     redirect_to guide_mod_panel_mod_approval_index_path(@guide)
  else
     render 'mod_approval/index'
  end

end

routes

match '/guides/:guide_id/mod-panel/approve/category' => 'mod_approval#mod_add_category', :via => :post, as: :guide_mod_panel_approve_category
match '/guides/:guide_id/mod-panel/approve' => 'mod_approval#index', :via => :get, as: :guide_mod_panel_mod_approval_index

Not too sure why they aren't rendering I tried changing <%= render 'shared/error_messages', object: f.object %> to <%= render partial: 'shared/error_messages', object: f.object %> but that gives the error 

undefined local variable or method `object' for #<#<Class:0x007ffdbcd1c3a8>:0x007ffdbcbdd320>

on this line <% if object.errors.any? %>

This error rendering setup was made from Michael Hartls rails tutorial and as I said I works fine for every other form but this one.

Upvotes: 1

Views: 290

Answers (1)

Paul A Jungwirth
Paul A Jungwirth

Reputation: 24551

The reason is that when you render the form, you instantiate a new Category:

form_for([@guide, Guide.friendly.find(@guide.id).categories.new],

You need to give form_for the Category instance that has the errors (@category from your controller). So I would change your form to this:

form_for([@guide, @category],

And then in your #new method make sure you set it up:

@category = @guide.categories.build

Upvotes: 1

Related Questions