+/******************************************************************************
+ * Drawing charts methods...
+ ******************************************************************************/
+ bar_chart: function () {
+ var self = this,
+ dim_x = this.pivot.rows.groupby.length,
+ dim_y = this.pivot.cols.groupby.length,
+ data;
+
+ // No groupby **************************************************************
+ if ((dim_x === 0) && (dim_y === 0)) {
+ data = [{key: 'Total', values:[{
+ x: 'Total',
+ y: this.pivot.get_value(this.pivot.rows.main.id, this.pivot.cols.main.id),
+ }]}];
+ // Only column groupbys ****************************************************
+ } else if ((dim_x === 0) && (dim_y >= 1)){
+ data = _.map(this.pivot.get_columns_depth(1), function (header) {
+ return {
+ key: header.title,
+ values: [{x:header.root.main.title, y: self.pivot.get_total(header)}]
+ };
+ });
+ // Just 1 row groupby ******************************************************
+ } else if ((dim_x === 1) && (dim_y === 0)) {
+ data = _.map(this.pivot.rows.main.children, function (pt) {
+ var value = self.pivot.get_value(pt.id, self.pivot.cols.main.id),
+ title = (pt.title !== undefined) ? pt.title : 'Undefined';
+ return {x: title, y: value};
+ });
+ data = [{key: this.measure_label(), values:data}];
+ // 1 row groupby and some col groupbys**************************************
+ } else if ((dim_x === 1) && (dim_y >= 1)) {
+ data = _.map(this.pivot.get_columns_depth(1), function (colhdr) {
+ var values = _.map(self.pivot.get_rows_depth(1), function (header) {
+ return {
+ x: header.title || 'Undefined',
+ y: self.pivot.get_value(header.id, colhdr.id, 0)
+ };
+ });
+ return {key: colhdr.title || 'Undefined', values: values};
+ });
+ // At least two row groupby*************************************************
+ } else {
+ var keys = _.uniq(_.map(this.pivot.get_rows_depth(2), function (hdr) {
+ return hdr.title || 'Undefined';
+ }));
+ data = _.map(keys, function (key) {
+ var values = _.map(self.pivot.get_rows_depth(1), function (hdr) {
+ var subhdr = _.find(hdr.children, function (child) {
+ return ((child.title === key) || ((child.title === undefined) && (key === 'Undefined')));
+ });
+ return {
+ x: hdr.title || 'Undefined',
+ y: (subhdr) ? self.pivot.get_total(subhdr) : 0
+ };
+ });
+ return {key:key, values: values};
+ });
+ }