docs/source/AbstractSummary.html

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  18   <pre class="prettyprint lang-js"><span id='Ext-grid-feature-AbstractSummary'>/**
  19 </span> * @class Ext.grid.feature.AbstractSummary
  20  * @extends Ext.grid.feature.Feature
  21  * A small abstract class that contains the shared behaviour for any summary
  22  * calculations to be used in the grid.
  23  */
  24 Ext.define('Ext.grid.feature.AbstractSummary', {
  25
  26     /* Begin Definitions */
  27
  28     extend: 'Ext.grid.feature.Feature',
  29
  30     alias: 'feature.abstractsummary',
  31
  32     /* End Definitions */
  33
  34 <span id='Ext-grid-feature-AbstractSummary-cfg-showSummaryRow'>   /**
  35 </span>    * @cfg {Boolean} showSummaryRow True to show the summary row. Defaults to &lt;tt&gt;true&lt;/tt&gt;.
  36     */
  37     showSummaryRow: true,
  38
  39     // @private
  40     nestedIdRe: /\{\{id\}([\w\-]*)\}/g,
  41
  42 <span id='Ext-grid-feature-AbstractSummary-method-toggleSummaryRow'>    /**
  43 </span>     * Toggle whether or not to show the summary row.
  44      * @param {Boolan} visible True to show the summary row
  45      */
  46     toggleSummaryRow: function(visible){
  47         this.showSummaryRow = !!visible;
  48     },
  49
  50 <span id='Ext-grid-feature-AbstractSummary-method-getSummaryFragments'>    /**
  51 </span>     * Gets any fragments to be used in the tpl
  52      * @private
  53      * @return {Object} The fragments
  54      */
  55     getSummaryFragments: function(){
  56         var fragments = {};
  57         if (this.showSummaryRow) {
  58             Ext.apply(fragments, {
  59                 printSummaryRow: Ext.bind(this.printSummaryRow, this)
  60             });
  61         }
  62         return fragments;
  63     },
  64
  65 <span id='Ext-grid-feature-AbstractSummary-method-printSummaryRow'>    /**
  66 </span>     * Prints a summary row
  67      * @private
  68      * @param {Object} index The index in the template
  69      * @return {String} The value of the summary row
  70      */
  71     printSummaryRow: function(index){
  72         var inner = this.view.getTableChunker().metaRowTpl.join('');
  73
  74         inner = inner.replace('x-grid-row', 'x-grid-row-summary');
  75         inner = inner.replace('{{id}}', '{gridSummaryValue}');
  76         inner = inner.replace(this.nestedIdRe, '{id$1}');
  77         inner = inner.replace('{[this.embedRowCls()]}', '{rowCls}');
  78         inner = inner.replace('{[this.embedRowAttr()]}', '{rowAttr}');
  79         inner = Ext.create('Ext.XTemplate', inner, {
  80             firstOrLastCls: Ext.view.TableChunker.firstOrLastCls
  81         });
  82
  83         return inner.applyTemplate({
  84             columns: this.getPrintData(index)
  85         });
  86     },
  87
  88 <span id='Ext-grid-feature-AbstractSummary-method-getColumnValue'>    /**
  89 </span>     * Gets the value for the column from the attached data.
  90      * @param {Ext.grid.column.Column} column The header
  91      * @param {Object} data The current data
  92      * @return {String} The value to be rendered
  93      */
  94     getColumnValue: function(column, summaryData){
  95         var comp     = Ext.getCmp(column.id),
  96             value    = summaryData[column.id],
  97             renderer = comp.summaryRenderer;
  98
  99         if (renderer) {
 100             value = renderer.call(
 101                 comp.scope || this,
 102                 value,
 103                 summaryData,
 104                 column.dataIndex
 105             );
 106         }
 107         return value;
 108     },
 109
 110 <span id='Ext-grid-feature-AbstractSummary-method-getSummary'>    /**
 111 </span>     * Get the summary data for a field.
 112      * @private
 113      * @param {Ext.data.Store} store The store to get the data from
 114      * @param {String/Function} type The type of aggregation. If a function is specified it will
 115      * be passed to the stores aggregate function.
 116      * @param {String} field The field to aggregate on
 117      * @param {Boolean} group True to aggregate in grouped mode
 118      * @return {Mixed} See the return type for the store functions.
 119      */
 120     getSummary: function(store, type, field, group){
 121         if (type) {
 122             if (Ext.isFunction(type)) {
 123                 return store.aggregate(type, null, group);
 124             }
 125
 126             switch (type) {
 127                 case 'count':
 128                     return store.count(group);
 129                 case 'min':
 130                     return store.min(field, group);
 131                 case 'max':
 132                     return store.max(field, group);
 133                 case 'sum':
 134                     return store.sum(field, group);
 135                 case 'average':
 136                     return store.average(field, group);
 137                 default:
 138                     return group ? {} : '';
 139
 140             }
 141         }
 142     }
 143
 144 });
 145 </pre>
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