Erster Aufbau Forum

backend/models/trigger.js

@@ -16,6 +16,12 @@ export async function createTriggers() {
                     SELECT id FROM type.user_param_visibility WHERE description = 'Invisible'
                 ));
             END IF;
+
+            -- If NEW is null, then we have nothing to do
+            IF NEW IS NULL THEN
+                RETURN NULL;
+            END IF;
+
             RETURN NEW;
         END;
         $$ LANGUAGE plpgsql;
@@ -25,6 +31,7 @@ export async function createTriggers() {
         CREATE OR REPLACE TRIGGER trigger_create_user_param_visibility
         AFTER INSERT ON community.user_param
         FOR EACH ROW
+        WHEN (NEW.id IS NOT NULL)
         EXECUTE FUNCTION create_user_param_visibility_trigger();
     `;
 
@@ -32,6 +39,7 @@ export async function createTriggers() {
         CREATE OR REPLACE TRIGGER trigger_update_user_param_visibility
         AFTER UPDATE ON community.user_param
         FOR EACH ROW
+        WHEN (NEW.id IS NOT NULL)
         EXECUTE FUNCTION create_user_param_visibility_trigger();
     `;
 
@@ -39,8 +47,14 @@ export async function createTriggers() {
         CREATE OR REPLACE FUNCTION insert_diary_history()
         RETURNS TRIGGER AS $$
         BEGIN
-            INSERT INTO community.diary_history (diaryId, userId, oldText, oldCreatedAt, oldUpdatedAt)
-            VALUES (OLD.id, OLD.userId, OLD.text, OLD.createdAt, OLD.updatedAt);
+            INSERT INTO community.diary_history (diary_id, user_id, old_text, old_created_at, old_updated_at)
+            VALUES (OLD.id, OLD.user_id, OLD.text, OLD.created_at, OLD.updated_at);
+
+            -- If NEW is null, then we have nothing to do
+            IF NEW IS NULL THEN
+                RETURN NULL;
+            END IF;
+
             RETURN NEW;
         END;
         $$ LANGUAGE plpgsql;
@@ -50,18 +64,41 @@ export async function createTriggers() {
         CREATE OR REPLACE TRIGGER diary_update_trigger
         BEFORE UPDATE ON community.diary
         FOR EACH ROW
+        WHEN (OLD.id IS NOT NULL)
         EXECUTE FUNCTION insert_diary_history();
     `;
 
+    const createTitleHistoryTriggerFunction = `
+        CREATE OR REPLACE FUNCTION insert_title_history()
+        RETURNS TRIGGER AS $$
+        BEGIN
+            INSERT INTO forum.title_history (title_id, old_title, changed_by, old_updated_at)
+            VALUES (OLD.id, OLD.title, OLD.created_by, OLD.updated_at);
+            RETURN NEW;
+        END;
+        $$ LANGUAGE plpgsql;
+    `;
+
+    const createTitleHistoryTrigger = `
+        CREATE OR REPLACE TRIGGER title_update_trigger
+        BEFORE UPDATE ON forum.title
+        FOR EACH ROW
+        WHEN (OLD.id IS NOT NULL)
+        EXECUTE FUNCTION insert_title_history();
+    `;
+
     try {
         await sequelize.query(createTriggerFunction);
         await sequelize.query(createInsertTrigger);
         await sequelize.query(createUpdateTrigger);
         await sequelize.query(createDiaryHistoryTriggerFunction);
         await sequelize.query(createDiaryHistoryTrigger);
+        await sequelize.query(createTitleHistoryTriggerFunction);
+        await sequelize.query(createTitleHistoryTrigger);
 
         console.log('Triggers created successfully');
     } catch (error) {
         console.error('Error creating triggers:', error);
     }
+
 }