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103 lines
3.2 KiB
JavaScript
103 lines
3.2 KiB
JavaScript
/**
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* By default DataTables only uses the sAjaxSource variable at initialisation
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* time, however it can be useful to re-read an Ajax source and have the table
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* update. Typically you would need to use the `fnClearTable()` and
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* `fnAddData()` functions, however this wraps it all up in a single function
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* call.
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*
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* DataTables 1.10 provides the `dt-api ajax.url()` and `dt-api ajax.reload()`
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* methods, built-in, to give the same functionality as this plug-in. As such
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* this method is marked deprecated, but is available for use with legacy
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* version of DataTables. Please use the new API if you are used DataTables 1.10
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* or newer.
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*
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* @name fnReloadAjax
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* @summary Reload the table's data from the Ajax source
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* @author [Allan Jardine](http://sprymedia.co.uk)
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* @deprecated
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*
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* @param {string} [sNewSource] URL to get the data from. If not give, the
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* previously used URL is used.
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* @param {function} [fnCallback] Callback that is executed when the table has
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* redrawn with the new data
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* @param {boolean} [bStandingRedraw=false] Standing redraw (don't changing the
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* paging)
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*
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* @example
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* var table = $('#example').dataTable();
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*
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* // Example call to load a new file
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* table.fnReloadAjax( 'media/examples_support/json_source2.txt' );
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*
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* // Example call to reload from original file
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* table.fnReloadAjax();
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*/
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jQuery.fn.dataTableExt.oApi.fnReloadAjax = function ( oSettings, sNewSource, fnCallback, bStandingRedraw )
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{
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// DataTables 1.10 compatibility - if 1.10 then `versionCheck` exists.
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// 1.10's API has ajax reloading built in, so we use those abilities
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// directly.
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if ( jQuery.fn.dataTable.versionCheck ) {
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var api = new jQuery.fn.dataTable.Api( oSettings );
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if ( sNewSource ) {
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api.ajax.url( sNewSource ).load( fnCallback, !bStandingRedraw );
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}
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else {
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api.ajax.reload( fnCallback, !bStandingRedraw );
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}
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return;
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}
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if ( sNewSource !== undefined && sNewSource !== null ) {
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oSettings.sAjaxSource = sNewSource;
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}
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// Server-side processing should just call fnDraw
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if ( oSettings.oFeatures.bServerSide ) {
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this.fnDraw();
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return;
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}
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this.oApi._fnProcessingDisplay( oSettings, true );
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var that = this;
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var iStart = oSettings._iDisplayStart;
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var aData = [];
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this.oApi._fnServerParams( oSettings, aData );
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oSettings.fnServerData.call( oSettings.oInstance, oSettings.sAjaxSource, aData, function(json) {
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/* Clear the old information from the table */
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that.oApi._fnClearTable( oSettings );
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/* Got the data - add it to the table */
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var aData = (oSettings.sAjaxDataProp !== "") ?
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that.oApi._fnGetObjectDataFn( oSettings.sAjaxDataProp )( json ) : json;
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for ( var i=0 ; i<aData.length ; i++ )
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{
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that.oApi._fnAddData( oSettings, aData[i] );
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}
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oSettings.aiDisplay = oSettings.aiDisplayMaster.slice();
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that.fnDraw();
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if ( bStandingRedraw === true )
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{
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oSettings._iDisplayStart = iStart;
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that.oApi._fnCalculateEnd( oSettings );
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that.fnDraw( false );
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}
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that.oApi._fnProcessingDisplay( oSettings, false );
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/* Callback user function - for event handlers etc */
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if ( typeof fnCallback == 'function' && fnCallback !== null )
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{
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fnCallback( oSettings );
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}
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}, oSettings );
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};
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