/** * Value filter class. Use this filter type when you want to filter * the left/top axis results by the grand total summary values. * * Example for a value filter: * * { * xtype: 'pivotgrid', * * matrix: { * // This example will generate a column for each year * // that has its grand total value between 1,000 and 15,000. * aggregate: [{ * id: 'agg', * dataIndex: 'value', * aggregator: 'sum', * header: 'Total' * }], * topAxis: [{ * dataIndex: 'year', * header: 'Year', * filter: { * type: 'value', * operator: 'between', * dimensionId: 'agg', // this is the id of an aggregate dimension * value: [1000, 15000] * } * }] * } * } * * * Top 10 filter works as following: * * First of all sort axis groups by grand total value of the specified dimension. The sorting * order depends on top/bottom configuration. * * - Top/Bottom 10 Items: Keep only the top x items from the groups array * * - Top/Bottom 10 Percent: Find first combined values to total at least x percent of the parent grandtotal * * - Top/Bottom 10 Sum: Find first combined values to total at least x * * * Example for a top 10 value filter: * * { * xtype: 'pivotgrid', * * matrix: { * // This example will return the bottom 3 years that have the smallest * // sum of value. * aggregate: [{ * id: 'agg', * dataIndex: 'value', * aggregator: 'sum', * header: 'Total' * }], * leftAxis: [{ * dataIndex: 'year', * header: 'Year', * filter: { * type: 'value', * operator: 'top10', * dimensionId: 'agg', // this is the id of an aggregate dimension * topType: 'items', * topOrder: 'bottom', * value: 3 * } * }] * } * } * */Ext.define('Ext.pivot.filter.Value', { alternateClassName: [ 'Mz.aggregate.filter.Value' ], extend: 'Ext.pivot.filter.Base', alias: 'pivotfilter.value', /** * @cfg {String} operator * @inheritdoc * @localdoc * * `top10` * */ /** * @cfg {String} dimensionId (required) * * Id of the aggregate dimension used to filter by the specified value * */ dimensionId: '', /** * @cfg {String} [topType="items"] * * Specify here which kind of Top10 we need to perform. * Possible values: items, percent, sum * */ topType: 'items', /** * @cfg {String} [topOrder="top"] * * Which kind of top10 do you want? Possible values: top, bottom * */ topOrder: 'top', /** * @cfg {Boolean} [topSort=true] * * Should the top10 results be sorted? If True then the dimension sorting is ignored and * the results are sorted by the grand total in DESC (topOrder = top) or ASC (topOrder = bottom) order. * */ topSort: true, /** * @property {Boolean} isTopFilter * @readonly * * Is this a top10 type of filter? * */ isTopFilter: false, constructor: function(config){ var ret = this.callParent([config]); //<debug> if(Ext.isEmpty(this.dimensionId)){ Ext.raise('dimensionId is mandatory on Value filters'); } //</debug> this.isTopFilter = (this.operator === 'top10'); return ret; }, destroy: function(){ this.dimension = null; this.callParent(); }, getDimension: function(){ //<debug> if(!this.parent.matrix.aggregate.getByKey(this.dimensionId)){ Ext.raise('There is no aggregate dimension that matches the dimensionId provided'); } //</debug> return this.parent.matrix.aggregate.getByKey(this.dimensionId); }, /** * @inheritdoc */ getSerialArgs: function(){ var me = this; return { dimensionId: me.dimensionId, topType: me.topType, topOrder: me.topOrder, topSort: me.topSort }; }, /** * This function performs top10 on the specified array. * * @param axis * @param treeItems * * @private */ applyFilter: function(axis, treeItems){ var me = this, items = me.topSort ? treeItems : Ext.Array.clone(treeItems), ret = []; if(treeItems.length == 0){ return ret; } //sort the items by the grand total value in ASC(top)/DESC(bottom) order me.sortItemsByGrandTotal(axis, items); switch(me.topType){ case 'items': ret = me.extractTop10Items(items); break; case 'sum': ret = me.extractTop10Sum(items); break; case 'percent': ret = me.extractTop10Percent(axis, items); break; } if(!me.topSort){ items.length = 0; } return ret; }, /** * * @param items * @returns {Array} * * @private */ extractTop10Items: function(items){ // we have to extract all values which are not part of the top // ie: we need to extract top2 but there are 3 values which are the same var me = this, uniqueValues = [], i; for(i = 0; i < items.length; i++){ if(uniqueValues.indexOf(items[i]['tempVar']) < 0){ uniqueValues.push(items[i]['tempVar']); if(uniqueValues.length > me.value || (me.value < i + 1 && i > 0)){ break; } } } return Ext.Array.slice(items, i); }, /** * * @param items * @returns {Array} * * @private */ extractTop10Sum: function(items){ var me = this, sum = 0, i; for(i = 0; i < items.length; i++){ sum += items[i]['tempVar']; if(sum >= me.value){ break; } } return Ext.Array.slice(items, i + 1); }, /** * * @param axis * @param items * @returns {Array} * * @private */ extractTop10Percent: function(axis, items){ var me = this, sum = 0, keys = items[0].key.split(axis.matrix.keysSeparator), i, leftKey, topKey, parentKey, result, grandTotal; //let's find the parent grand total keys.length--; parentKey = (keys.length > 0 ? keys.join(axis.matrix.keysSeparator) : axis.matrix.grandTotalKey); leftKey = (axis.isLeftAxis ? parentKey : axis.matrix.grandTotalKey); topKey = (axis.isLeftAxis ? axis.matrix.grandTotalKey : parentKey); result = axis.matrix.results.get(leftKey, topKey); grandTotal = (result ? result.getValue(me.dimensionId) : 0); for(i = 0; i < items.length; i++){ sum += items[i]['tempVar']; if((sum * 100 / grandTotal) >= me.value){ break; } } return Ext.Array.slice(items, i + 1); }, /** * * @param axis * @param items * * @private */ sortItemsByGrandTotal: function(axis, items){ var me = this, leftKey, topKey, result, i; //let's fetch the grandtotal values and store them in a temp var on each item for(i = 0; i < items.length; i++){ leftKey = (axis.isLeftAxis ? items[i].key : axis.matrix.grandTotalKey); topKey = (axis.isLeftAxis ? axis.matrix.grandTotalKey : items[i].key); result = axis.matrix.results.get(leftKey, topKey); items[i]['tempVar'] = (result ? result.getValue(me.dimensionId) : 0); } Ext.Array.sort(items, function(a, b){ var result = axis.matrix.naturalSort(a['tempVar'], b['tempVar']); if(result < 0 && me.topOrder === 'top'){ return 1; } if(result > 0 && me.topOrder === 'top'){ return -1; } return result; }); }});