Speichere individuelle Haar- und Augenfarben je Charakter

backend/migrations-active/20261104000001-add-character-appearance.cjs

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+'use strict';
+
+module.exports = {
+  async up(queryInterface) {
+    await queryInterface.sequelize.transaction(async (transaction) => {
+      await queryInterface.sequelize.query(`
+        ALTER TABLE falukant_data.character
+          ADD COLUMN IF NOT EXISTS hair_color VARCHAR(7),
+          ADD COLUMN IF NOT EXISTS eye_color VARCHAR(7);
+
+        CREATE OR REPLACE FUNCTION falukant_data.initialize_character_appearance()
+        RETURNS trigger LANGUAGE plpgsql AS $$
+        BEGIN
+          IF TG_OP = 'UPDATE' THEN
+            NEW.hair_color := COALESCE(NEW.hair_color, OLD.hair_color);
+            NEW.eye_color := COALESCE(NEW.eye_color, OLD.eye_color);
+          END IF;
+          IF NEW.hair_color IS NULL THEN
+            NEW.hair_color := (ARRAY[
+              '#211b18', '#493024', '#69432d', '#95603c', '#c69c60', '#d8bf83', '#a34826'
+            ])[1 + floor(random() * 7)::int];
+          END IF;
+          IF NEW.eye_color IS NULL THEN
+            NEW.eye_color := (ARRAY[
+              '#493026', '#795532', '#8b7544', '#56704c', '#497c9c', '#75858b'
+            ])[1 + floor(random() * 6)::int];
+          END IF;
+          RETURN NEW;
+        END;
+        $$;
+
+        DROP TRIGGER IF EXISTS initialize_character_appearance ON falukant_data.character;
+        CREATE TRIGGER initialize_character_appearance
+          BEFORE INSERT OR UPDATE ON falukant_data.character
+          FOR EACH ROW EXECUTE FUNCTION falukant_data.initialize_character_appearance();
+
+        UPDATE falukant_data.character SET hair_color = hair_color
+          WHERE hair_color IS NULL OR eye_color IS NULL;
+
+        ALTER TABLE falukant_data.character
+          ALTER COLUMN hair_color SET NOT NULL,
+          ALTER COLUMN eye_color SET NOT NULL;
+
+        DO $$
+        BEGIN
+          IF NOT EXISTS (
+            SELECT 1 FROM pg_constraint
+            WHERE conrelid = 'falukant_data.character'::regclass
+              AND conname = 'character_appearance_colors_valid'
+          ) THEN
+            ALTER TABLE falukant_data.character
+              ADD CONSTRAINT character_appearance_colors_valid CHECK (
+                hair_color ~ '^#[0-9a-fA-F]{6}$'
+                AND eye_color ~ '^#[0-9a-fA-F]{6}$'
+              );
+          END IF;
+        END;
+        $$;
+      `, { transaction });
+    });
+  },
+
+  async down(queryInterface) {
+    await queryInterface.sequelize.transaction(async (transaction) => {
+      await queryInterface.sequelize.query(`
+        DROP TRIGGER IF EXISTS initialize_character_appearance ON falukant_data.character;
+        DROP FUNCTION IF EXISTS falukant_data.initialize_character_appearance();
+        ALTER TABLE falukant_data.character
+          DROP CONSTRAINT IF EXISTS character_appearance_colors_valid,
+          DROP COLUMN IF EXISTS hair_color,
+          DROP COLUMN IF EXISTS eye_color;
+      `, { transaction });
+    });
+  },
+};