Introduce support for confidence calculations

pillar/api/nodes/custom/comment.py

@@ -6,6 +6,7 @@ from flask import current_app
 import werkzeug.exceptions as wz_exceptions
 
 from pillar.api.utils import authorization, authentication, jsonify
+from pillar.api.utils.rating import confidence
 
 from . import register_patch_handler
 
@@ -25,6 +26,13 @@ def patch_comment(node_id, patch):
         assert patch['op'] == 'edit', 'Invalid patch operation %s' % patch['op']
         result, node = edit_comment(user_id, node_id, patch)
 
+    # Calculate and update confidence.
+    rating_confidence = confidence(
+        node['properties']['rating_positive'], node['properties']['rating_negative'])
+    current_app.data.driver.db['nodes'].update_one(
+        {'_id': node_id},
+        {'$set': {'properties.confidence': rating_confidence}})
+
     return jsonify({'_status': 'OK',
                     'result': result,
                     'properties': node['properties']

tests/test_api/test_nodes_comments.py

@@ -179,6 +179,14 @@ class VoteCommentTest(AbstractPatchCommentTest):
         ], patched_node['properties'].get('ratings', []))
 
 
+class CommentsSortingTest(AbstractPatchCommentTest):
+    def default_sorting(self):
+        pass
+
+    def sorting_with_confidence(self):
+        pass
+
+
 class EditCommentTest(AbstractPatchCommentTest):
     def test_comment_edit_happy(self, token='owner-token'):
         pre_node = self.get(self.node_url, auth_token=token).get_json()