acts_as_commentable validations
I recently started back up with Rails and things are going well up until now.
I've set up acts_as_commentable in my Post model and it's working great. Problem is users are able to create a "blank" comment. I've added the following validations in the comment.rb file generated by acts_as_commentable to limit the comment length:
validates_length_of :comment, :minimum => 3, :too_short => "must be at
least {{count}} words.", :tokenizer => lambda {|str| str.scan(/\w+/) }
validates_length_of :comment, :maximum => 200, :too_long => "must be
shorter than {{count}} words. Make sure there are no links or
elements.", :tokenizer => lambda {|str| str.scan(/\w+/) }
The show view form for the comment is the following:
<%- form_for [@post, @comment] do |f|-%>
<%= f.error_messages %>
<%= f.text_area :comment, :rows => 3 -%>
<p><%= f.submit -%></p>
<%- end -%>
However I am getting the following error only when validation fails (if a normal length comment is created the site works):
Template is missing
Missing template comments/create with {:handlers=>[:erb, :rjs, :builder,
:rhtml, :rxml], :formats=>[:html], :locale=>[:en, :en]} in view paths
"/...", "/.../.rvm/gems/ruby-1.9.2-head/gems/devise-1.2.1/app/views"
Any idea how I can render just a regular validation error? Thanks in advance!
UPDATE
CommentsController as requested:
class CommentsController < ApplicationController
before_filter :authenticate_user!
def create
@post = Post.find(params[:post_id])
@comment = @post.comments.new(params[:comment])
@comment.user_id = current_user.id
if @comment.save
redirect_to @post
end
end
def destroy
session[:return_to] ||= request.referer
if current_user.admin?
@comment = Comment.find(params[:id])
else
@comment = current_user.comments.find(params[:id])
end
@comment.destroy
respond_to do |format|
format.html { redirect_to session[:return_to] }
format.xml { head :ok }
end
end
end
Development Log:
Started POST "/posts/1/comments" for 127.0.0.1 at 2011-04-18 15:20:05 -0400
Processing by CommentsController#create as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"P5x6xSS6VgxPg58Ubftc4FcUQKZFQbpKOKO9zFeE7cM=", "comment"=>{"comment"=>""}, "commit"=>"Create Comment", "post_id"=>"1"}
User Load (0.7ms) SELECT "users".* FROM "users" 开发者_开发技巧WHERE "users"."id" = 1 LIMIT 1
SQL (0.3ms) SELECT name
FROM sqlite_master
WHERE type = 'table' AND NOT name = 'sqlite_sequence'
Post Load (0.4ms) SELECT "posts".* FROM "posts" WHERE "posts"."id" = 1 LIMIT 1
Completed in 154ms
ActionView::MissingTemplate (Missing template comments/create with {:handlers=>[:erb, :rjs, :builder, :rhtml, :rxml], :formats=>[:html], :locale=>[:en, :en]} in view paths "/.../app/views", "/.../vendor/plugins/dynamic_form/app/views", "/.../.rvm/gems/ruby-1.9.2-head/gems/devise-1.2.1/app/views"):
Rendered /.../.rvm/gems/ruby-1.9.2-head/gems/actionpack-3.0.6/lib/action_dispatch/middleware/templates/rescues/missing_template.erb within rescues/layout (0.8ms)
This happening because you haven't defined yet what controller should do if validation fails.
Try this:
def create
@post = Post.find(params[:post_id])
@comment = @post.comments.new(params[:comment])
@comment.user_id = current_user.id
if @comment.save
redirect_to @post
else # validation fails
render 'new'
end
end
Hope it helps you somehow.
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