Polymorphic association with rails view links
so i have a polymorphic association. I want to display all posts, but can't get the view links to work
class Artist < ActiveRecord::Base
has_many :posts, :as => :postable
end
class Label < ActiveRecord::Base
has_many :posts, :as => :postable
end
class Post < ActiveRecord::Base
belongs_to :postable, :polymorphic => true
end
class ApplicationController < ActionController::Base
def find_postable
params.each do |name, value|
if name =~ /(.+)_id$/
@postable = $1.classify.constantize.find(value)
end
end
nil
end
end
class InfoController < ApplicationController
before_filter :find_postable
def index
@allposts = Post.find(:all, :order => 'created_at DESC', :limit => 10 )
end
<% for post in @allposts %>
<div class="all_posts_post">
<h2 class="content_title">
<%= link_to post.title, ???????? %>
<%= link_to 'Edit', ??????? %>
<%= link_to 'Destroy', ?????? :method => :delete, :confirm => 'Are you sure?' %>
JESii
If you remove the before_filter, do you get anything displayed?
ASKER
actually it doesn't seem to make any difference, this is exactly what i have;
class InfoController < ApplicationController
def index
@allgigs = Gig.find(:all, :order => 'starts ASC', :limit => 20, :conditions => [ "starts between ? and ?", Time.now, 7.days.since ] )
@allposts = Post.find(:all, :order => 'created_at DESC', :limit => 10 )
@alltags = Tag.find(:all)
end
end
#app/views/info/index
<div id="all_posts">
<h2 class="all_posts_title">Latest News</h2>
<% for post in @allposts %>
<div class="all_posts_post">
<h2 class="content_title"><%= link_to post.title, [@postable, post] %></h2>
<% if post.post_image.exists? %>
<div class="all_posts_post_img">
<%= image_tag post.post_image.url(:thumb) %>
<!-- END .all_posts_post_img --></div>
<% end -%>
<p class="date">Posted <%= distance_of_time_in_words_to_now(post.created_at) %> ago</p>
<div class="all_posts_body">
<%= auto_link truncate(post.body, :length => 270) %>
<!-- END .all_posts_body --></div>
<div class="tag_list">
<% for tag in post.tags %>
<span class="tags"><%= link_to tag.name, tag_path(tag) %></span>
<% end -%>
<!-- END .tag_list --></div>
<% if admin? %>
<%= link_to 'Edit', polymorphic_url([post.postable, post], :action => :edit) %>
<%= link_to 'Destroy', [post.postable, post], :method => :delete, :confirm => 'Are you sure?' %>
<% end -%>
<div class="content_clear_with_hr"></div>
<!-- END .all_posts_post --></div>
<% end -%>
<!-- END #all_posts --></div>
#error
undefined method `post_path' for #<ActionView::Base:0x1031147d0>
Ah! lines 40: Undefined method 'post_path"... believe that means you are having routes problems.
You may need to say "posts_path" [note the plural]
If that doesn't work, type the following in your shell:
rake routes
to see what is actually defined in your system.
...jon
You may need to say "posts_path" [note the plural]
If that doesn't work, type the following in your shell:
rake routes
to see what is actually defined in your system.
...jon
ASKER
artist_gigs GET /artists/:artist_id/gigs(.:format) {:controller=>"gigs", :action=>"index"}
POST /artists/:artist_id/gigs(.:format) {:controller=>"gigs", :action=>"create"}
new_artist_gig GET /artists/:artist_id/gigs/new(.:format) {:controller=>"gigs", :action=>"new"}
edit_artist_gig GET /artists/:artist_id/gigs/:id/edit(.:format) {:controller=>"gigs", :action=>"edit"}
artist_gig GET /artists/:artist_id/gigs/:id(.:format) {:controller=>"gigs", :action=>"show"}
PUT /artists/:artist_id/gigs/:id(.:format) {:controller=>"gigs", :action=>"update"}
DELETE /artists/:artist_id/gigs/:id(.:format) {:controller=>"gigs", :action=>"destroy"}
artist_posts GET /artists/:artist_id/posts(.:format) {:controller=>"posts", :action=>"index"}
POST /artists/:artist_id/posts(.:format) {:controller=>"posts", :action=>"create"}
new_artist_post GET /artists/:artist_id/posts/new(.:format) {:controller=>"posts", :action=>"new"}
edit_artist_post GET /artists/:artist_id/posts/:id/edit(.:format) {:controller=>"posts", :action=>"edit"}
artist_post GET /artists/:artist_id/posts/:id(.:format) {:controller=>"posts", :action=>"show"}
PUT /artists/:artist_id/posts/:id(.:format) {:controller=>"posts", :action=>"update"}
DELETE /artists/:artist_id/posts/:id(.:format) {:controller=>"posts", :action=>"destroy"}
artist_links GET /artists/:artist_id/links(.:format) {:controller=>"links", :action=>"index"}
POST /artists/:artist_id/links(.:format) {:controller=>"links", :action=>"create"}
new_artist_link GET /artists/:artist_id/links/new(.:format) {:controller=>"links", :action=>"new"}
edit_artist_link GET /artists/:artist_id/links/:id/edit(.:format) {:controller=>"links", :action=>"edit"}
artist_link GET /artists/:artist_id/links/:id(.:format) {:controller=>"links", :action=>"show"}
PUT /artists/:artist_id/links/:id(.:format) {:controller=>"links", :action=>"update"}
DELETE /artists/:artist_id/links/:id(.:format) {:controller=>"links", :action=>"destroy"}
artist_videos GET /artists/:artist_id/videos(.:format) {:controller=>"videos", :action=>"index"}
POST /artists/:artist_id/videos(.:format) {:controller=>"videos", :action=>"create"}
new_artist_video GET /artists/:artist_id/videos/new(.:format) {:controller=>"videos", :action=>"new"}
edit_artist_video GET /artists/:artist_id/videos/:id/edit(.:format) {:controller=>"videos", :action=>"edit"}
artist_video GET /artists/:artist_id/videos/:id(.:format) {:controller=>"videos", :action=>"show"}
PUT /artists/:artist_id/videos/:id(.:format) {:controller=>"videos", :action=>"update"}
DELETE /artists/:artist_id/videos/:id(.:format) {:controller=>"videos", :action=>"destroy"}
artist_charts GET /artists/:artist_id/charts(.:format) {:controller=>"charts", :action=>"index"}
POST /artists/:artist_id/charts(.:format) {:controller=>"charts", :action=>"create"}
new_artist_chart GET /artists/:artist_id/charts/new(.:format) {:controller=>"charts", :action=>"new"}
edit_artist_chart GET /artists/:artist_id/charts/:id/edit(.:format) {:controller=>"charts", :action=>"edit"}
artist_chart GET /artists/:artist_id/charts/:id(.:format) {:controller=>"charts", :action=>"show"}
PUT /artists/:artist_id/charts/:id(.:format) {:controller=>"charts", :action=>"update"}
DELETE /artists/:artist_id/charts/:id(.:format) {:controller=>"charts", :action=>"destroy"}
artist_images GET /artists/:artist_id/images(.:format) {:controller=>"images", :action=>"index"}
POST /artists/:artist_id/images(.:format) {:controller=>"images", :action=>"create"}
new_artist_image GET /artists/:artist_id/images/new(.:format) {:controller=>"images", :action=>"new"}
edit_artist_image GET /artists/:artist_id/images/:id/edit(.:format) {:controller=>"images", :action=>"edit"}
artist_image GET /artists/:artist_id/images/:id(.:format) {:controller=>"images", :action=>"show"}
PUT /artists/:artist_id/images/:id(.:format) {:controller=>"images", :action=>"update"}
DELETE /artists/:artist_id/images/:id(.:format) {:controller=>"images", :action=>"destroy"}
artist_podcasts GET /artists/:artist_id/podcasts(.:format) {:controller=>"podcasts", :action=>"index"}
POST /artists/:artist_id/podcasts(.:format) {:controller=>"podcasts", :action=>"create"}
new_artist_podcast GET /artists/:artist_id/podcasts/new(.:format) {:controller=>"podcasts", :action=>"new"}
edit_artist_podcast GET /artists/:artist_id/podcasts/:id/edit(.:format) {:controller=>"podcasts", :action=>"edit"}
artist_podcast GET /artists/:artist_id/podcasts/:id(.:format) {:controller=>"podcasts", :action=>"show"}
PUT /artists/:artist_id/podcasts/:id(.:format) {:controller=>"podcasts", :action=>"update"}
DELETE /artists/:artist_id/podcasts/:id(.:format) {:controller=>"podcasts", :action=>"destroy"}
artist_tracks GET /artists/:artist_id/tracks(.:format) {:controller=>"tracks", :action=>"index"}
POST /artists/:artist_id/tracks(.:format) {:controller=>"tracks", :action=>"create"}
new_artist_track GET /artists/:artist_id/tracks/new(.:format) {:controller=>"tracks", :action=>"new"}
edit_artist_track GET /artists/:artist_id/tracks/:id/edit(.:format) {:controller=>"tracks", :action=>"edit"}
artist_track GET /artists/:artist_id/tracks/:id(.:format) {:controller=>"tracks", :action=>"show"}
PUT /artists/:artist_id/tracks/:id(.:format) {:controller=>"tracks", :action=>"update"}
DELETE /artists/:artist_id/tracks/:id(.:format) {:controller=>"tracks", :action=>"destroy"}
artists GET /artists(.:format) {:controller=>"artists", :action=>"index"}
POST /artists(.:format) {:controller=>"artists", :action=>"create"}
new_artist GET /artists/new(.:format) {:controller=>"artists", :action=>"new"}
edit_artist GET /artists/:id/edit(.:format) {:controller=>"artists", :action=>"edit"}
artist GET /artists/:id(.:format) {:controller=>"artists", :action=>"show"}
PUT /artists/:id(.:format) {:controller=>"artists", :action=>"update"}
DELETE /artists/:id(.:format) {:controller=>"artists", :action=>"destroy"}
label_posts GET /labels/:label_id/posts(.:format) {:controller=>"posts", :action=>"index"}
POST /labels/:label_id/posts(.:format) {:controller=>"posts", :action=>"create"}
new_label_post GET /labels/:label_id/posts/new(.:format) {:controller=>"posts", :action=>"new"}
edit_label_post GET /labels/:label_id/posts/:id/edit(.:format) {:controller=>"posts", :action=>"edit"}
label_post GET /labels/:label_id/posts/:id(.:format) {:controller=>"posts", :action=>"show"}
PUT /labels/:label_id/posts/:id(.:format) {:controller=>"posts", :action=>"update"}
DELETE /labels/:label_id/posts/:id(.:format) {:controller=>"posts", :action=>"destroy"}
labels GET /labels(.:format) {:controller=>"labels", :action=>"index"}
POST /labels(.:format) {:controller=>"labels", :action=>"create"}
new_label GET /labels/new(.:format) {:controller=>"labels", :action=>"new"}
edit_label GET /labels/:id/edit(.:format) {:controller=>"labels", :action=>"edit"}
label GET /labels/:id(.:format) {:controller=>"labels", :action=>"show"}
PUT /labels/:id(.:format) {:controller=>"labels", :action=>"update"}
DELETE /labels/:id(.:format) {:controller=>"labels", :action=>"destroy"}
sessions GET /sessions(.:format) {:controller=>"sessions", :action=>"index"}
POST /sessions(.:format) {:controller=>"sessions", :action=>"create"}
new_session GET /sessions/new(.:format) {:controller=>"sessions", :action=>"new"}
edit_session GET /sessions/:id/edit(.:format) {:controller=>"sessions", :action=>"edit"}
session GET /sessions/:id(.:format) {:controller=>"sessions", :action=>"show"}
PUT /sessions/:id(.:format) {:controller=>"sessions", :action=>"update"}
DELETE /sessions/:id(.:format) {:controller=>"sessions", :action=>"destroy"}
tags GET /tags(.:format) {:controller=>"tags", :action=>"index"}
POST /tags(.:format) {:controller=>"tags", :action=>"create"}
new_tag GET /tags/new(.:format) {:controller=>"tags", :action=>"new"}
edit_tag GET /tags/:id/edit(.:format) {:controller=>"tags", :action=>"edit"}
tag GET /tags/:id(.:format) {:controller=>"tags", :action=>"show"}
PUT /tags/:id(.:format) {:controller=>"tags", :action=>"update"}
DELETE /tags/:id(.:format) {:controller=>"tags", :action=>"destroy"}
GET /contact {:controller=>"contact", :action=>"index"}
POST /contact {:controller=>"contact", :action=>"create"}
GET /booking {:controller=>"contact", :action=>"booking"}
contact POST /booking {:controller=>"contact", :action=>"create_booking"}
root / {:controller=>"info", :action=>"index"}
login /login {:controller=>"sessions", :action=>"new"}
logout /logout {:controller=>"sessions", :action=>"destroy"}
/:controller/:action/:id
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