Adding a filter box widget

panoramix/static/panoramix.css

@@ -2,6 +2,10 @@ html>body{
     margin: 0px; !important
 }
 
+.padded{
+    padding: 10px;
+}
+
 .slice_container {
     height: 100%;
 }

panoramix/static/panoramix.js

@@ -68,7 +68,6 @@ var px = (function() {
         $('#timer').removeClass('btn-danger btn-success');
         $('#timer').addClass('btn-warning');
         viz.render();
-        console.log(slice);
         $('#json').click(function(){window.location=slice.jsonEndpoint()});
         $('#standalone').click(function(){window.location=slice.data.standalone_endpoint});
         $('#csv').click(function(){window.location=slice.data.csv_endpoint});
@@ -99,9 +98,10 @@ var px = (function() {
       slices: [],
       filters: {},
       id: id,
-      addFilter: function(slice_id, field, values) {
-        this.filters[slice_id] = [field, values];
+      addFilter: function(slice_id, filters) {
+        this.filters[slice_id] = filters;
         this.refreshExcept(slice_id);
+        console.log(this.filters);
       },
       refreshExcept: function(slice_id) {
         this.slices.forEach(function(slice){

panoramix/static/widgets/viz_filter_box.js

@@ -0,0 +1,59 @@
+px.registerViz('filter_box', function(slice) {
+  var slice = slice;
+  d3token = d3.select(slice.selector);
+
+  var fltChanged = function() {
+    filters = []
+    d3token.selectAll('select.select2_box_filter').each(function(){
+      val = $(this).val();
+      name = $(this).attr('name');
+      if (val !== null && val !== undefined){
+        if (typeof val === 'string')
+          val = [val];
+        filters.push([name, val]);
+      }
+    });
+    slice.addFilter(filters);
+  }
+
+  var refresh = function() {
+      $('#code').attr('rows', '15')
+      var container = d3token
+        .append('div')
+        .classed('padded', true);
+      $.getJSON(slice.jsonEndpoint(), function(payload) {
+        for (filter in payload.data){
+          data = payload.data[filter];
+          var id = 'fltbox__' + filter;
+
+          var div = container.append('div');
+          div.append("label").text(filter);
+          var sel = div
+            .append('select')
+            .attr('name', filter)
+            .attr('multiple', '')
+            .attr('id', id);
+
+          sel.classed('select2_box_filter form-control', true);
+          sel.selectAll('option').data(data).enter()
+            .append('option')
+            .attr('value', function(d){return d[0];})
+            .text(function(d){return d[0];});
+          $('#' + id).select2({
+            //allowClear: true,
+            placeholder: "Select [" + filter + ']',
+            dropdownAutoWidth : true,
+          })
+          .on('change', fltChanged);
+        }
+        slice.done();
+      })
+      .fail(function(xhr) {
+          slice.error(xhr.responseText);
+        });
+      };
+  return {
+    render: refresh,
+    resize: refresh,
+  };
+});

panoramix/static/widgets/viz_table.js

@@ -55,7 +55,7 @@ px.registerViz('table', function(slice) {
             } else {
               table.selectAll('.filtered').classed('filtered', false);
               d3.select(this).classed('filtered', true);
-              slice.addFilter(d.col, [d.val]);
+              slice.addFilter([[d.col, [d.val]]]);
             }
           }
        })

panoramix/viz.py

@@ -161,8 +161,11 @@ def query_filters(self):
         extra_filters = form_data.get('extra_filters', [])
         if extra_filters:
             extra_filters = json.loads(extra_filters)
-            for slice_id, (col, vals) in extra_filters.items():
-                filters += [(col, 'in', ",".join(vals))]
+            for slice_id, slice_filters in extra_filters.items():
+                if slice_filters:
+                    for col, vals in slice_filters:
+                        if col and vals:
+                            filters += [(col, 'in', ",".join(vals))]
 
         return filters
 
@@ -1105,6 +1108,55 @@ def get_json_data(self):
         return dumps(d)
 
 
+class FilterBoxViz(BaseViz):
+    viz_type = "filter_box"
+    verbose_name = "Filters"
+    is_timeseries = False
+    js_files = [
+        'lib/d3.min.js',
+        'widgets/viz_filter_box.js']
+    css_files = []
+    fieldsets = (
+    {
+        'label': None,
+        'fields': (
+            'granularity',
+            ('since', 'until'),
+            'groupby',
+            'metric',
+        )
+    },)
+    form_overrides = {
+        'groupby': {
+            'label': 'Filter fields',
+            'description': "The fields you want to filter on",
+        },
+    }
+    def query_obj(self):
+        qry = super(FilterBoxViz, self).query_obj()
+        groupby = self.form_data['groupby']
+        if len(groupby) < 1:
+            raise Exception("Pick at least one filter field")
+        qry['metrics'] = [
+            self.form_data['metric']]
+        return qry
+
+    def get_df(self):
+        qry = self.query_obj()
+
+        filters = [g for g in qry['groupby']]
+        d = {}
+        for flt in filters:
+            qry['groupby'] = [flt]
+            df = super(FilterBoxViz, self).get_df(qry)
+            d[flt] = [row for row in df.itertuples(index=False)]
+        return d
+
+    def get_json_data(self):
+        d = self.get_df()
+        return dumps(d)
+
+
 viz_types_list = [
     TableViz,
     PivotTableViz,
@@ -1122,6 +1174,7 @@ def get_json_data(self):
     DirectedForceViz,
     SankeyViz,
     WorldMapViz,
+    FilterBoxViz,
 ]
 # This dict is used to
 viz_types = OrderedDict([(v.viz_type, v) for v in viz_types_list])