It is belongs_to :post ----------- not posts
On Thursday, 13 February 2014 12:27:48 UTC+5:30, Nadia Vu wrote:
>
> Hi there, I'm very new to RoR please be kind.
>
> I wasn't sure where to go but I was hoping I could find help here after
> days of hair pulling. Stackoverflow was not successful.
>
> I have followed the Official Beginners Guide to ROR and made a blog.
>
> I wanted to take it further and add a tagging system to the blog. Im
> getting errors and I don't have enough knowledge of ruby to determine what
> is causing them. Any thoughts/help would be really appreciated.
>
> So this is the error
> ActiveRecord::StatementInvalid in Posts#show
>
> Showing */home/nadia/blog/app/views/posts/show.html.erb* where line *#8*
> raised:
> SQLite3::SQLException: no such column: taggings.post_id: SELECT "tags".*
> FROM "tags" INNER JOIN "taggings" ON "tags"."id" = "taggings"."tag_id"
> WHERE "taggings"."post_id" = ?
>
> Extracted source (around line *#8*):
>
>
> 6<p>
> 7Tags:
> 8<% @post.tags.each do |tag| %>
> 9<%= link_to tag.name, tag_path(tag) %>
> 10<% end %>
> 11</p>
>
>
>
>
>
>
> And this a small chunk of the
>
> post_controller:
>
> def new
> 27 @post = Post.new
> 28 end
> 29 def create
> 30 @post = Post.new(post_params)
> 31
> 32 if @post.save
> 33 redirect_to action: :show, id: @post.id
> 34 else
> 35 render 'new'
> 36 end
> 37 end
> 38
> 39 def destroy
> 40 @post = Post.find(params[:id])
> 41 @post.destroy
> 42
> 43 redirect_to action: :index
> 44 end
>
> This is my tag_controller
>
>
> 1 class TagsController < ApplicationController
> 2
> 3 def show
> 4 @tag = Tag.find(params[:id])
> 5 end~
>
>
> my tag.rb
>
> 1 class Tag < ActiveRecord::Base
> 2 has_many :taggings
> 3 has_many :posts, through: :taggings
> 4
> 5 end
>
> post.rb
>
> 1 class Post < ActiveRecord::Base
> 2
> 3 has_many :comments, dependent: :destroy
> 4 has_many :taggings
> 5 has_many :tags, through: :taggings
> 6 validates :title,
> 7 presence: true,
> 8 length: { minimum: 5 }
> 9
> 10 def tag_list
> 11 self.tags.collect do |tag|
> 12 tag.name
> 13 end.join(", ")
> 14 end
> 15 def tag_list=(tags_string)
> 16 tag_names = tags_string.split(",").collect{|s| s.strip.downcase}.uniq
> 17 new_or_found_tags = tag_names.collect { |name|
> Tag.find_or_create_by(name: name) }
> 18 self.tags = new_or_found_tags
> 19 end
> 20 end~
>
> and my posts_helper
>
> 1 module PostsHelper
> 2 def post_params
> 3 params.require(:post).permit(:title, :body, :tag_list)
> 4 end
> 5 end
>
> Please let me know if I can add any more code that you would need to see
>
> Please please help. I really need to get out of this little rut. And any
> comments would be appreciated.
>
>
>
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