Add pie chart visualization template

common/cloudflare.py

@@ -40,14 +40,17 @@ def purge_vis_cache(cls, slug):
             reverse('visualizeEmbedly', args=(slug, 'barchart-interactive')),
             reverse('visualizeEmbedly', args=(slug, 'sankey')),
             reverse('visualizeEmbedly', args=(slug, 'table')),
+            reverse('visualizeEmbedly', args=(slug, 'pie')),
             reverse('visualizeBallotpedia', args=(slug,)),
             reverse('visualizeEmbedded', args=(slug,)) + '?vistype=barchart-interactive',
             reverse('visualizeEmbedded', args=(slug,)) + '?vistype=barchart-fixed',
             reverse('visualizeEmbedded', args=(slug,)) + '?vistype=tabular-by-candidate',
             reverse('visualizeEmbedded', args=(slug,)) + '?vistype=tabular-by-round',
             reverse('visualizeEmbedded', args=(slug,)) + '?vistype=tabular-by-round-interactive',
             reverse('visualizeEmbedded', args=(slug,)) + '?vistype=candidate-by-round',
-            reverse('visualizeEmbedded', args=(slug,)) + '?vistype=sankey'
+            reverse('visualizeEmbedded', args=(slug,)) + '?vistype=sankey',
+            reverse('visualizeEmbedded', args=(slug,)) + '?vistype=pie'
+
         ]
         cls.purge_paths_cache(paths)
 

common/viewUtils.py

@@ -10,6 +10,7 @@
 from visualizer.descriptors.textForWinnerUtils import as_caption
 from visualizer.graph.graphCreator import make_graph_with_file
 from visualizer.models import TextForWinner
+from visualizer.pie.graphToRCtab import graph_to_rctab_json
 from visualizer.sankey.graphToD3 import D3Sankey
 from visualizer.sidecar.reader import SidecarReader
 from visualizer.tabular.tabular import TabulateByRoundInteractive, \
@@ -68,6 +69,8 @@ def get_data_for_graph(graph, config):
         'tabularByRound': tabularByRound,
         'tabularByRoundInteractive': tabularByRoundInteractive,
         'graph': graph,
+        'rawData': graph._raw_JSON,
+        'pieData': graph_to_rctab_json(graph),
         'textForWinner': as_caption(config).lower(),
     }
     roundDescriberData = get_data_for_round_describer(graph, config)

rcvis/settings.py

@@ -191,6 +191,15 @@
     }
 }
 
+
+def pie_chart_no_cache(headers, path, url):
+    """Ensure browsers revalidate the pie chart component on every load."""
+    if url.endswith('pie-chart.es.js'):
+        headers['Cache-Control'] = 'no-cache'
+
+
+WHITENOISE_ADD_HEADERS_FUNCTION = pie_chart_no_cache
+
 NODE_PACKAGE_JSON = './package.json'
 NODE_MODULES_ROOT = './node_modules'
 NODE_PACKAGE_MANAGER_EXECUTABLE = os.environ.get('NODE_PACKAGE_MANAGER_EXECUTABLE', '/usr/bin/npm')