repeater-sort.js

/*
 * Fuel UX Utilities Repeater Static DataSource
 * https://github.com/ExactTarget/fuelux-utilities
 *
 * Copyright (c) 2014 ExactTarget
 * Licensed under the BSD New license.
 */

// -- BEGIN UMD WRAPPER PREFACE --

// For more information on UMD visit:
// https://github.com/umdjs/umd/blob/master/jqueryPlugin.js

(function (factory) {
	if (typeof define === 'function' && define.amd) {
		// if AMD loader is available, register as an anonymous module.
		define(['jquery', 'underscore', 'bootstrap', 'fuelux'], factory);
	} else {
		// OR use browser globals if AMD is not present
		factory(jQuery);
	}
}(function ($, _) {
	// -- END UMD WRAPPER PREFACE --

	// -- BEGIN MODULE CODE HERE --

	if($.fn.repeater) {
		$.fn.repeater.staticDataSource = function(columns, data){
			var dataset = data;

			var sort = function(data, sortProperty, sortDirection) {
				var sortedData = _.sortBy(data, function(item) {
					return item[sortProperty];
				});

				// sort direction
				if (sortDirection === 'desc') {
					sortedData = sortedData.reverse();
				}

				return sortedData;
			};

			var filter = function(data, filter) {
				var filteredData;

				if(filter === 'all' || filter.value === 'all') {
					return data;
				} else if(filter.property) {
					// simple filter
					filteredData = _.filter(data, function(item){
						return item[filter.property] === filter.value;
					});
					return filteredData;
				} else {
					// advanced filter
					filteredData = _.filter(data, function(item){
						var match = true;
						for (var key in filter) {
							if (item[key] !== filter[key]) {
								match = false;
								break;
							}
						}
						return match;
					});

					return filteredData;
				}
			};

			var search = function(data, search) {
				var searchedData = [];
				var searchTerm = search.toLowerCase();

				_.each(data, function(item) {
					var values = _.values(item);
					var found = _.find(values, function(val) {

						if(val.toString().toLowerCase().indexOf(searchTerm) > -1) {
							searchedData.push(item);
							return true;
						}
					});
				});

				return searchedData;
			};

			var delay = function() {
				var min = 200;  // 200 milliseconds
				var max = 1000; // 1 second

				// random delay interval
				return Math.floor(Math.random() * (max - min + 1)) + min;
			};

			this.getData = function(options, callback) {
				var pageIndex = options.pageIndex;
				var pageSize = options.pageSize;
				var view = options.view;
				var viewColumns = columns;

				if(columns[view]) {
					// if columns vary by view
					viewColumns = columns[view];
				}

				// sort by
				var rows = sort(dataset, options.sortProperty, options.sortDirection);

				// filter
				rows = filter(rows, options.filter);

				// search
				if (options.search && options.search.length > 0) {
					rows = search(rows, options.search);
				}

				var totalItems = rows.length;
				var totalPages = Math.ceil(totalItems / pageSize);
				var startIndex = (pageIndex * pageSize) + 1;
				var endIndex = (startIndex + pageSize) - 1;
				if(endIndex > rows.length) {
					endIndex = rows.length;
				}

				rows = rows.slice(startIndex-1, endIndex);

				var dataSource = {
					page: pageIndex,
					pages: totalPages,
					count: totalItems,
					start: startIndex,
					end: endIndex,
					columns: viewColumns,
					items: rows
				};

				// simulate delay
				window.setTimeout(function () {
					callback(dataSource);
				}, delay());
			};
		};
	}

// -- BEGIN UMD WRAPPER AFTERWORD --
}));
// -- END UMD WRAPPER AFTERWORD --