is_rateable
Currently star buttons are a put request, not a post request like they should be due to time constraints. Should be fixed in a future version.
Patches welcome! I do test my own stuff but until I find a nice and easy way to include rspec in plugins, they won’t come with the specs.
Usage
To install, type script/generate rateable [--by_user]
Options
—by-user will associate your ratings to a user model. Hopefully you’ve got one already.
Without Ajax
In your model.
<pre>
is_rateable :upto => 5 # it defaults :upto => 5
</pre>
In your view.
<pre>
render_rating(@book, :interactive_stars)
render_rating(@book) # If you want to also see 1/5 Stars
</pre>
If a user rates more than twice, it will delete their older rating and put up a new rating.
Add a method to your books_controller like so:
<pre>
def rate
@book = Book.find(params[:id])
unless @book.add_rating(params[:rating].to_i, :ip => request.remote_ip)
flash[:notice] = "You have already voted on this book"
end
redirect_to @book
end
</pre>
Using Ajax
You can use the same code for your model
<pre>
is_rateable :upto => 5 # it defaults :upto => 5
</pre>
On your view, you need to call a partial
<pre>
#Using html.erb
<div id="rating">
<%= render :partial => "books/rate", :locals => { :rateable => @book } %>
#Using haml
#rating
render :partial => “books/rate”, :locals => { :rateable => @book }
Your partial will have a spinner and a div to be replaced when ajax is completed
<pre>
#Using html.erb (views/books/_rate.html.erb)
<%= render_ajax_rating rateable %>
<%= image_tag "icons/spinner.gif", :id => :spinner, :style => "display: none;" %>
<div id="success_rating" style="display:none;">
Rated!
#Using haml (views/books/_rate.html.haml)
= render_ajax_rating rateable
= image_tag “icons/spinner.gif”, :id => :spinner, :style => “display: none;”
#success_rating{:style => “display:none;”}
Rated!
On your controller:
<pre>
def rate
@book = Book.find(params[:id])
@book.rate params[:rating].to_i
render :update do |page|
page.replace_html("rating", {:partial => "rate", :locals => {:rateable => @book}})
page.show "success_rating"
end
end
</pre>
Todo
- Annotate methods
Credits
- Zach Inglis
- Nathan Arnold
- Les Hill
- Matt Remsik
- Tim Pope
- Rogie King – CSS for Stars
- Some code from restful_authentication by Rick Olson
Ajax Rating
Copyright © 2008 Zach Inglis, released under the MIT license