Fix: Исправление определения недели на границе года (ISOYEAR)

- Заменен EXTRACT(YEAR) на EXTRACT(ISOYEAR) в materialized view для корректной работы на границе года
- Обновлена миграция 001_create_schema.sql для использования ISOYEAR
- Создана миграция 006_fix_weekly_report_mv_structure.sql для исправления структуры view (LEFT JOIN)
- Добавлен endpoint /admin/recreate-mv для пересоздания materialized view
- Обновлена документация миграций в README.md
- Обновлены зависимости Go (go.mod, go.sum)

play-life-backend/migrations/001_create_schema.sql

@@ -73,9 +73,10 @@ FROM
 LEFT JOIN 
     (
         -- 1. Предварительная агрегация: суммируем score по неделям
+        -- Используем ISOYEAR для корректной работы на границе года
         SELECT
             n.project_id,
-            EXTRACT(YEAR FROM e.created_date)::INTEGER AS report_year,
+            EXTRACT(ISOYEAR FROM e.created_date)::INTEGER AS report_year,
             EXTRACT(WEEK FROM e.created_date)::INTEGER AS report_week,
             SUM(n.score) AS total_score
         FROM
@@ -101,5 +102,5 @@ COMMENT ON TABLE projects IS 'Projects table storing project information with pr
 COMMENT ON TABLE entries IS 'Entries table storing entry creation timestamps';
 COMMENT ON TABLE nodes IS 'Nodes table linking projects, entries and storing scores';
 COMMENT ON TABLE weekly_goals IS 'Weekly goals for projects';
-COMMENT ON MATERIALIZED VIEW weekly_report_mv IS 'Materialized view aggregating weekly scores by project';
+COMMENT ON MATERIALIZED VIEW weekly_report_mv IS 'Materialized view aggregating weekly scores by project using ISOYEAR for correct week calculations at year boundaries';
 

play-life-backend/migrations/006_fix_weekly_report_mv_structure.sql

@@ -0,0 +1,46 @@
+-- Migration: Fix weekly_report_mv structure to include all projects via LEFT JOIN
+-- This ensures the view structure matches the code in main.go
+-- Date: 2024-12-29
+--
+-- Issue: Migration 005 created the view without LEFT JOIN to projects table,
+-- which means projects without data were not included in the view.
+-- This migration fixes the structure to match main.go implementation.
+
+-- Drop existing materialized view
+DROP MATERIALIZED VIEW IF EXISTS weekly_report_mv;
+
+-- Recreate materialized view with correct structure (LEFT JOIN with projects)
+-- This ensures all projects are included, even if they have no data for a given week
+CREATE MATERIALIZED VIEW weekly_report_mv AS
+SELECT
+    p.id AS project_id,
+    agg.report_year,
+    agg.report_week,
+    COALESCE(agg.total_score, 0.0000) AS total_score
+FROM
+    projects p
+LEFT JOIN 
+    (
+        SELECT
+            n.project_id,
+            EXTRACT(ISOYEAR FROM e.created_date)::INTEGER AS report_year,
+            EXTRACT(WEEK FROM e.created_date)::INTEGER AS report_week,
+            SUM(n.score) AS total_score
+        FROM
+            nodes n
+        JOIN
+            entries e ON n.entry_id = e.id
+        GROUP BY
+            1, 2, 3
+    ) agg 
+    ON p.id = agg.project_id
+ORDER BY
+    p.id, agg.report_year, agg.report_week
+WITH DATA;
+
+-- Recreate index
+CREATE INDEX IF NOT EXISTS idx_weekly_report_mv_project_year_week 
+    ON weekly_report_mv(project_id, report_year, report_week);
+
+COMMENT ON MATERIALIZED VIEW weekly_report_mv IS 'Materialized view aggregating weekly scores by project using ISOYEAR for correct week calculations at year boundaries. Includes all projects via LEFT JOIN.';
+

play-life-backend/migrations/README.md

@@ -57,6 +57,33 @@ docker-compose exec db psql -U playeng -d playeng -f /migrations/001_create_sche
   - `report_week` (INTEGER)
   - `total_score` (NUMERIC)
 
+## Миграции
+
+### Порядок применения миграций
+
+1. **001_create_schema.sql** - Создание базовой структуры (таблицы, индексы, materialized view)
+2. **002_add_dictionaries.sql** - Добавление таблиц для словарей
+3. **003_remove_words_unique_constraint.sql** - Удаление уникального ограничения на words.name
+4. **004_add_config_dictionaries.sql** - Добавление связи между конфигурациями и словарями
+5. **005_fix_weekly_report_mv.sql** - Исправление использования ISOYEAR вместо YEAR для корректной работы на границе года
+6. **006_fix_weekly_report_mv_structure.sql** - Исправление структуры view (добавление LEFT JOIN для включения всех проектов)
+
+### Применение миграций
+
+Для существующей базы данных применяйте миграции последовательно:
+
+```bash
+psql -U playeng -d playeng -f migrations/005_fix_weekly_report_mv.sql
+psql -U playeng -d playeng -f migrations/006_fix_weekly_report_mv_structure.sql
+```
+
+Или через docker-compose:
+
+```bash
+docker-compose exec db psql -U playeng -d playeng -f /migrations/005_fix_weekly_report_mv.sql
+docker-compose exec db psql -U playeng -d playeng -f /migrations/006_fix_weekly_report_mv_structure.sql
+```
+
 ## Обновление Materialized View
 
 После изменения данных в таблицах `nodes` или `entries`, необходимо обновить materialized view: