feat: migration add-task-comment

src/backend/migrations/006-add-task-comment.sql

@@ -0,0 +1,30 @@
+-- ## Migration to create task_comment table
+
+-- ## Apply Migration
+-- Start a transaction
+BEGIN;
+
+-- Create the 'task_comment' table if it doesn't exist
+CREATE TABLE IF NOT EXISTS public.task_comment (
+    id SERIAL PRIMARY KEY,
+    task_id INT NOT NULL,
+    project_id INT NOT NULL,
+    comment_text TEXT NOT NULL,
+    commented_by INT NOT NULL,
+    created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
+
+    -- Add foreign key constraint for task_id referencing a task table
+    CONSTRAINT fk_task_id FOREIGN KEY (task_id, project_id) REFERENCES tasks(id, project_id),
+
+    -- Add foreign key constraint for project_id referencing a project table
+    CONSTRAINT fk_project_id FOREIGN KEY (project_id) REFERENCES projects(id),
+
+    -- Add foreign key constraint for user_id referencing a user table
+    CONSTRAINT fk_user_id FOREIGN KEY (commented_by) REFERENCES users(id)
+
+);
+ALTER TABLE public.task_comment OWNER TO fmtm;
+
+-- Commit the transaction
+COMMIT;
+

src/backend/migrations/revert/006-add-task-comment.sql

@@ -0,0 +1,10 @@
+
+## Revert Migration (comment above, uncomment below)
+-- Start a transaction
+BEGIN;
+
+-- Drop the 'task_comment' table if it exists
+DROP TABLE IF EXISTS public.task_comment;
+
+-- Commit the transaction
+COMMIT;