CODEWITHSUNDEEP
ruby-on-railsrubyactiverecord
Alexander
Alexander

Reputation: 139

Getting an RecordNotFound exception when trying to find object by foreign_key

There are posts and comments form for each. I'm trying to add a comment to every post through the form. It's all happening on the same page.

View file code:

<% @posts.each do |post| %>
  <%=post.title%>
  <%=post.text%>

<%post.comments.each do |com|%>
    <h3> <%=com.content%> </h3>
<%end%>

   <%= form_for post.comments.build do |f| %>
     <p>comments:</p>
     <%= f.text_area :content, size: "12x12" %>       
     <%=f.submit%>
  <% end %>
<% end %>

Comments controller code:

def create
   @post = Post.find(params[:post_id])
   @comment = @post.comments.build(comment_params)
   @comment.save
   redirect_to root_path
end

It seems that program can not access to :post_id. I have all associations in my models and :post_id in my db schema.

Github link for this app

Upvotes: 0

Views: 42

Answers (3)

Shrutee
Shrutee

Reputation: 1915

You need to add <%= f.hidden_field :post_id %> in your form and permit :post_id in comment_params.

Also, you may want to reduce create method code to one line.

def create
    Comment.create(comment_params)
    redirect_to root_path
end

Upvotes: 1

Alexander
Alexander

Reputation: 139

I found a problem. The mistake is in searching by params[:post_id], while i need to by [:comment][:post_id] after adding the hidden_field

Upvotes: 0

Aventuris
Aventuris

Reputation: 630

You need to permit :post_id for your strong parameters in the comments controller:

def comment_params
    params.require(:comment).permit(:content, :post_id)
end

Upvotes: 0

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