Refine ThemeScores

Ensure proposals that have the same theme both by themselves and from the
dossier they belong to are counted once towards theme score.

memopol_scores/migrations/0004_refine_themescore.py

+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('memopol_scores', '0003_themescore'),
+    ]
+
+    operations = [
+        migrations.RunSQL(
+            """
+            CREATE OR REPLACE VIEW "memopol_scores_v_theme_score"
+            AS SELECT
+                "scoresource"."representative_id" AS "representative_id",
+                "scoresource"."theme_id" AS "theme_id",
+                SUM("scoresource"."score") AS "score"
+            FROM
+                (
+                    -- Score contribution for proposals
+                    SELECT
+                        "representatives_votes_vote"."representative_id" AS "representative_id",
+                        "proposal_themes"."theme_id" AS "theme_id",
+                        "memopol_scores_votescore"."score" AS "score"
+                    FROM
+                        "memopol_scores_votescore"
+                        INNER JOIN "representatives_votes_vote"
+                            ON "representatives_votes_vote"."id" = "memopol_scores_votescore"."vote_id"
+                        INNER JOIN (
+                                -- Proposals with a theme
+                                SELECT
+                                    "representatives_votes_proposal"."id" AS "proposal_id",
+                                    "memopol_themes_theme_proposals"."theme_id" AS "theme_id"
+                                FROM
+                                    "representatives_votes_proposal"
+                                    INNER JOIN "memopol_themes_theme_proposals"
+                                        ON "representatives_votes_proposal"."id" = "memopol_themes_theme_proposals"."proposal_id"
+                                UNION
+                                -- Proposals in a dossier with a theme
+                                SELECT
+                                    "representatives_votes_proposal"."id" AS "proposal_id",
+                                    "memopol_themes_theme_dossiers"."theme_id" AS "theme_id"
+                                FROM
+                                    "representatives_votes_proposal"
+                                    INNER JOIN "representatives_votes_dossier"
+                                        ON "representatives_votes_dossier"."id" = "representatives_votes_proposal"."dossier_id"
+                                    INNER JOIN "memopol_themes_theme_dossiers"
+                                        ON "memopol_themes_theme_dossiers"."dossier_id" = "representatives_votes_dossier"."id"
+                            ) "proposal_themes"
+                            ON "proposal_themes"."proposal_id" = "representatives_votes_vote"."proposal_id"
+                    UNION ALL
+                    -- Score contribution for positions
+                    SELECT
+                        "representatives_positions_position"."representative_id" AS "representative_id",
+                        "memopol_themes_theme_positions"."theme_id" AS "theme_id",
+                        "memopol_scores_positionscore"."score" AS "score"
+                    FROM
+                        "memopol_scores_positionscore"
+                        INNER JOIN "representatives_positions_position"
+                            ON "representatives_positions_position"."id" = "memopol_scores_positionscore"."position_id"
+                        INNER JOIN "memopol_themes_theme_positions"
+                            ON "memopol_themes_theme_positions"."position_id" = "memopol_scores_positionscore"."position_id"
+                ) "scoresource"
+            GROUP BY
+                "scoresource"."representative_id",
+                "scoresource"."theme_id"
+            """
+        ),
+    ]