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87 lines
2.4 KiB
JavaScript
87 lines
2.4 KiB
JavaScript
/*! © SpryMedia Ltd - datatables.net/license */
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(function( factory ){
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if ( typeof define === 'function' && define.amd ) {
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// AMD
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define( ['datatables.net'], function ( $ ) {
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return factory( $, window, document );
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} );
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}
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else if ( typeof exports === 'object' ) {
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// CommonJS
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module.exports = function (root, $) {
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if ( ! root ) {
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// CommonJS environments without a window global must pass a
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// root. This will give an error otherwise
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root = window;
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}
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if ( ! $.fn.dataTable ) {
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require('datatables.net')(root, $);
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}
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return factory( $, root, root.document );
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};
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}
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else {
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// Browser
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factory( jQuery, window, document );
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}
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}(function( $, window, document, undefined ) {
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'use strict';
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var DataTable = $.fn.dataTable;
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/**
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* Fairly simply, this plug-in will take the data from an API result set
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* and sum it, returning the summed value. The data can come from any data
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* source, including column data, cells or rows.
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*
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* Note that it will attempt to 'deformat' any string based data that is passed
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* into it - i.e. it will strip any non-numeric characters in order to make a
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* best effort attempt to sum all data types. This can be useful when working
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* with formatting numbers such as currency. However the trade-off is that no
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* error is thrown if non-numeric data is passed in. You should be aware of this
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* in case unexpected values are returned - likely the input data is not what is
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* expected.
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*
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* @name sum()
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* @summary Sum the values in a data set.
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* @author [Allan Jardine](http://datatables.net)
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* @requires DataTables 1.10+
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*
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* @returns {Number} Summed value
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*
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* @example
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* // Simply get the sum of a column
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* var table = $('#example').DataTable();
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* table.column( 3 ).data().sum();
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*
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* @example
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* // Insert the sum of a column into the columns footer, for the visible
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* // data on each draw
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* $('#example').DataTable( {
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* drawCallback: function () {
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* var api = this.api();
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* $( api.table().footer() ).html(
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* api.column( 4, {page:'current'} ).data().sum()
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* );
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* }
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* } );
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*/
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DataTable.Api.register('sum()', function () {
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return this.flatten().reduce(function (a, b) {
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if (typeof a === 'string') {
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a = a.replace(/[^\d.-]/g, '') * 1;
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}
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if (typeof b === 'string') {
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b = b.replace(/[^\d.-]/g, '') * 1;
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}
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return a + b;
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}, 0);
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});
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return DataTable;
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}));
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