feat: Implement organization branding, course pacing, and display upcoming deadlines in the experience portal.

services/cms-service/migrations/20251226000000_multi_tenancy.sql

@@ -0,0 +1,51 @@
+-- Migration: Add Multi-Tenancy Support (CMS)
+-- Based on existing schema: users, courses, assets, audit_logs
+
+-- 1. Create organizations table
+CREATE TABLE IF NOT EXISTS organizations (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name VARCHAR(255) NOT NULL UNIQUE,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- 2. Create a default organization for existing data
+INSERT INTO organizations (id, name) VALUES ('00000000-0000-0000-0000-000000000001', 'Default Organization');
+
+-- 3. Add organization_id to tables with default value for existing rows
+ALTER TABLE users ADD COLUMN IF NOT EXISTS organization_id UUID NOT NULL DEFAULT '00000000-0000-0000-0000-000000000001';
+ALTER TABLE courses ADD COLUMN IF NOT EXISTS organization_id UUID NOT NULL DEFAULT '00000000-0000-0000-0000-000000000001';
+ALTER TABLE assets ADD COLUMN IF NOT EXISTS organization_id UUID NOT NULL DEFAULT '00000000-0000-0000-0000-000000000001';
+ALTER TABLE audit_logs ADD COLUMN IF NOT EXISTS organization_id UUID; -- Nullable for system logs or pre-migration logs
+
+-- 4. Add Foreign Keys (wrapped in DO block for safety)
+DO $$ 
+BEGIN 
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_user_organization') THEN
+        ALTER TABLE users ADD CONSTRAINT fk_user_organization FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE;
+    END IF;
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_course_organization') THEN
+        ALTER TABLE courses ADD CONSTRAINT fk_course_organization FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE;
+    END IF;
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_asset_organization') THEN
+        ALTER TABLE assets ADD CONSTRAINT fk_asset_organization FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE CASCADE;
+    END IF;
+    IF NOT EXISTS (SELECT 1 FROM pg_constraint WHERE conname = 'fk_audit_log_organization') THEN
+        ALTER TABLE audit_logs ADD CONSTRAINT fk_audit_log_organization FOREIGN KEY (organization_id) REFERENCES organizations(id) ON DELETE SET NULL;
+    END IF;
+END $$;
+
+-- 5. Remove default values for future inserts (enforce explicit organization)
+ALTER TABLE users ALTER COLUMN organization_id DROP DEFAULT;
+ALTER TABLE courses ALTER COLUMN organization_id DROP DEFAULT;
+ALTER TABLE assets ALTER COLUMN organization_id DROP DEFAULT;
+
+-- 6. Update Unique Constraints for Users
+-- Drop the global unique email constraint (created implicitly by UNIQUE in 20231219000003_users_table.sql)
+ALTER TABLE users DROP CONSTRAINT IF EXISTS users_email_key;
+
+-- Add composite unique index scoped to organization
+CREATE UNIQUE INDEX users_organization_id_email_idx ON users (organization_id, lower(email));
+
+-- 7. Update Audit Logs to backfill organization based on user (optional best effort)
+UPDATE audit_logs SET organization_id = u.organization_id FROM users u WHERE audit_logs.user_id = u.id;