Add PositionScore model for position score decay

memopol/tests/test_representative_positions.py

@@ -6,9 +6,10 @@ class RepresentativePositionsTest(RepresentativeBaseTest):
 
     """
     - One for positions
-    - One for related themes
+    - One for position scores
+    - One for position themes
     """
-    queries = RepresentativeBaseTest.queries + 2
+    queries = RepresentativeBaseTest.queries + 3
 
     def test_queries(self):
         self.do_query_test()

memopol/views/representative_detail_positions.py

@@ -19,7 +19,8 @@ class RepresentativeDetailPositions(RepresentativeDetailBase):
                 queryset=Position.objects.filter(published=True)
                 .order_by('-datetime', 'pk')
             ),
-            'positions__themes'
+            'positions__themes',
+            'positions__positionscore'
         )
 
         return qs

memopol/views/theme_detail_positions.py

@@ -8,7 +8,8 @@ class ThemeDetailPositions(ThemeDetailBase):
 
     def get_queryset(self):
         qs = super(ThemeDetailPositions, self).get_queryset()
-        qs = qs.prefetch_related('positions__representative')
+        qs = qs.prefetch_related('positions__representative',
+                                 'positions__positionscore')
         return qs
 
     def get_context_data(self, **kwargs):

representatives_positions/migrations/0006_positionscore.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('representatives_positions', '0005_set_title'),
+        ('representatives_recommendations', '0007_fix_underflow'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='PositionScore',
+            fields=[
+                ('id', models.AutoField(verbose_name='ID', serialize=False, auto_created=True, primary_key=True)),
+                ('score', models.FloatField(default=0)),
+            ],
+            options={
+                'db_table': 'representatives_positions_positionscore',
+                'managed': False,
+            },
+        ),
+
+        migrations.RunSQL(
+            """
+            CREATE OR REPLACE VIEW "representatives_positions_positionscore"
+            AS SELECT
+                "representatives_positions_position"."id" AS "id",
+                "representatives_positions_position"."id" AS "position_id",
+                "representatives_positions_position"."representative_id" AS "representative_id",
+                decay_score(
+                    "representatives_positions_position"."score",
+                    "representatives_positions_position"."datetime",
+                    "decay_num"."value",
+                    "decay_denom"."value",
+                    "exponent"."value",
+                    "decimals"."value"
+                ) AS "score"
+            FROM "representatives_positions_position"
+                JOIN (SELECT CAST(TO_NUMBER(value, '99999') AS NUMERIC) AS value FROM memopol_settings_setting WHERE key = 'SCORE_DECAY_NUM') decay_num ON 1=1
+                JOIN (SELECT CAST(TO_NUMBER(value, '99999') AS NUMERIC) AS value FROM memopol_settings_setting WHERE key = 'SCORE_DECAY_DENOM') decay_denom ON 1=1
+                JOIN (SELECT CAST(TO_NUMBER(value, '99999') AS NUMERIC) AS value FROM memopol_settings_setting WHERE key = 'SCORE_EXPONENT') exponent ON 1=1
+                JOIN (SELECT CAST(TO_NUMBER(value, '99999') AS INTEGER) AS value FROM memopol_settings_setting WHERE key = 'SCORE_DECIMALS') decimals ON 1=1;
+            """
+        ),
+    ]

representatives_positions/models.py

@@ -37,3 +37,15 @@ class Position(models.Model):
 
     def unpublish(self):
         self.published = False
+
+
+class PositionScore(models.Model):
+    position = models.OneToOneField(Position, related_name='positionscore',
+                                    on_delete=models.DO_NOTHING)
+    representative = models.ForeignKey(Representative,
+                                       related_name='positionscores')
+    score = models.FloatField(default=0)
+
+    class Meta:
+        managed = False
+        db_table = 'representatives_positions_positionscore'

templates/blocks/_position_list.html

@@ -45,7 +45,7 @@
                 <div class="text-center">{{ position.datetime|naturalday }}</div>
                 {% include "blocks/_themetags.html" with themes=position.themes.all exclude=theme.pk %}
 
-                {{ position.score|score_badge }}
+                {{ position.positionscore.score|score_badge }}
               </button>
 
               <div class="modal fade" id="position-modal-{{ position.pk }}" tabindex="-1" role="dialog" aria-labelledby="position-button-{{ position.pk }}">
@@ -90,7 +90,7 @@
 
                           <dt>{% trans "Score" %}</dt>
                           <dd>
-                            {{ position.score|score_badge }}
+                            {{ position.positionscore.score|score_badge }}
                           </dd>
                         </dl>
                       </div>