35 lines
1.2 KiB
JavaScript
35 lines
1.2 KiB
JavaScript
(function($) {
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$.fn.prepopulate = function(dependencies, maxLength) {
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/*
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Depends on urlify.js
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Populates a selected field with the values of the dependent fields,
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URLifies and shortens the string.
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dependencies - selected jQuery object of dependent fields
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maxLength - maximum length of the URLify'd string
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*/
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return this.each(function() {
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var field = $(this);
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field.data('_changed', false);
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field.change(function() {
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field.data('_changed', true);
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});
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var populate = function () {
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// Bail if the fields value has changed
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if (field.data('_changed') == true) return;
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var values = [];
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dependencies.each(function() {
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if ($(this).val().length > 0) {
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values.push($(this).val());
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}
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});
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field.val(URLify(values.join(' '), maxLength));
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};
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dependencies.keyup(populate).change(populate).focus(populate);
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});
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};
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})(django.jQuery);
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