CODEWITHSUNDEEP
ruby-on-railsruby-on-rails-4
user3322822
user3322822

Reputation: 153

undefined method `permit' for nil:NilClass

while i am creating a comment associated with the posts, i am getting this error::

My comments controller ::

class CommentsController < ApplicationController
    def new
        @comments = Comment.new
    end

    def create 
        @post = Post.find (params[:post_id])    
        @comments = @post.comments.create(params[:comments].permit(:commenter, :body))
        redirect_to post_path(@post)
    end
end

// The form for the comments ///

  <strong>Title:</strong>
  <%= @post.Title %>
</p>

<p>
  <strong>Text:</strong>
  <%= @post.Text %>
</p>

<%= form_for([@post, @post.comments.build]) do |f| %>

<p>
    <%= f.label :commenter %><br />
    <%= f.text_field :commenter %>
  </p>
  <p>
    <%= f.label :body %><br />
    <%= f.text_area :body %>
  </p>
  <p>
    <%= f.submit %>
  </p>
<% end %>

i am getting error on this line::

@comments = @post.comments.create(params[:comments].permit(:commenter, :body))

Please point me out where i am wrong..

One edit :: My actual error statement ::

NoMethodError in CommentsController#create

Upvotes: 1

Views: 3323

Answers (2)

Kalpesh Fulpagare
Kalpesh Fulpagare

Reputation: 1299

The correct syntax to use strong parameter is

params.require(:comments).permit(:commenter, :body)

But I think params will contain comment not comments

So you should use

params.require(:comment).permit(:commenter, :body)

Upvotes: 4

sevenseacat
sevenseacat

Reputation: 25039

well, as the error message states, params[:comments] is nil.

You should be using params.require(:comments).permit(:commenter, :body) so that if comments isn't present, it won't go any further.

Also, the actual param being submitted is comment, not comments. You can verify this by looking at the submitted params in your logs.

Upvotes: 2

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