wuxuedaifu commented on a change in pull request #5144: Adding a new viz
line-bar chart
URL:
https://github.com/apache/incubator-superset/pull/5144#discussion_r371588770
##########
File path: superset/viz.py
##########
@@ -2623,6 +2623,80 @@ def get_data(self, df):
return self.nest_values(levels)
+class LineBarViz(NVD3Viz):
+
+ """A simple line bar chart with dual axis"""
+
+ viz_type = 'line_bar'
+ verbose_name = _('Time Series - Line Bar Chart')
+ sort_series = False
+ is_timeseries = True
+
+ def query_obj(self):
+ d = super(LineBarViz, self).query_obj()
+ m1 = self.form_data.get('metric')
+ m2 = self.form_data.get('metric_2')
+ d['metrics'] = [m1, m2]
+ if not m1:
+ raise Exception(_('Pick a metric for left(bar) axis!'))
+ if not m2:
+ raise Exception(_('Pick a metric for right(line) axis!'))
+ if m1 == m2:
+ raise Exception(_('Please choose different metrics'
+ ' on left and right axis'))
+ return d
+
+ def to_series(self, df, classed=''):
+ cols = []
+ for col in df.columns:
+ if col == '':
+ cols.append('N/A')
+ elif col is None:
+ cols.append('NULL')
+ else:
+ cols.append(col)
+ df.columns = cols
+ series = df.to_dict('series')
+ chart_data = []
+ metrics = [
+ self.form_data.get('metric'),
+ self.form_data.get('metric_2'),
+ ]
+ for i, m in enumerate(metrics):
+ ys = series[m]
Review comment:
this line execution returns a error: can not hash a dict
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