| /*global URLify*/ |
| (function($) { |
| 'use strict'; |
| $.fn.prepopulate = function(dependencies, maxLength, allowUnicode) { |
| /* |
| Depends on urlify.js |
| Populates a selected field with the values of the dependent fields, |
| URLifies and shortens the string. |
| dependencies - array of dependent fields ids |
| maxLength - maximum length of the URLify'd string |
| allowUnicode - Unicode support of the URLify'd string |
| */ |
| return this.each(function() { |
| var prepopulatedField = $(this); |
| |
| var populate = function() { |
| // Bail if the field's value has been changed by the user |
| if (prepopulatedField.data('_changed')) { |
| return; |
| } |
| |
| var values = []; |
| $.each(dependencies, function(i, field) { |
| field = $(field); |
| if (field.val().length > 0) { |
| values.push(field.val()); |
| } |
| }); |
| prepopulatedField.val(URLify(values.join(' '), maxLength, allowUnicode)); |
| }; |
| |
| prepopulatedField.data('_changed', false); |
| prepopulatedField.change(function() { |
| prepopulatedField.data('_changed', true); |
| }); |
| |
| if (!prepopulatedField.val()) { |
| $(dependencies.join(',')).keyup(populate).change(populate).focus(populate); |
| } |
| }); |
| }; |
| })(django.jQuery); |