Specification
Clicking a star rating turns on the stars to the left of the star I clicked.
Clicking a star submits the star rating.
When I refresh the page, the star ratings should be persistent.
We’ll be using Rails’ functions including:
form_for
hidden_field
Rails Helpers
We’ll be using jQuery functions including:
click
each
ajax
<% form_id = "movie_#{movie.id}_rating" %>
<%= form_for movie.ratings.last || movie.ratings.build, :html => {:id => form_id , :class => "star_rating_form"} do |f| %>
<%= f.hidden_field :movie_id %>
<%= f.hidden_field :stars, :id => form_id + "_stars" %>
<% end %>
<% (1..5).each do |i| %>
<% end %>
var set_stars = function(form_id, stars) {
for(i=1; i <= 5; i++){
if(i <= stars){
$('#' + form_id + '_' + i).addClass("on");
} else {
$('#' + form_id + '_' + i).removeClass("on");
}
}
}
$(function() {
$('.rating_star').click(function() {
var star = $(this);
var form_id = star.attr("data-form-id");
var stars = star.attr("data-stars");
$('#' + form_id + '_stars').val(stars);
$.ajax({
type: "post",
url: $('#' + form_id).attr('action'),
data: $('#' + form_id).serialize()
})
});
$('.star_rating_form').each(function() {
var form_id = $(this).attr('id');
set_stars(form_id, $('#' + form_id + '_stars').val());
});
});
