Add custom domain prefixes and option to disable user registration

rest-api/db/migrations/20240920090915_custom_domain_prefix.sql

@@ -0,0 +1,57 @@
+-- migrate:up
+CREATE TABLE internal.domain_prefix (
+  website_id UUID PRIMARY KEY REFERENCES internal.website (id) ON DELETE CASCADE,
+  prefix VARCHAR(16) UNIQUE NOT NULL CHECK (LENGTH(prefix) >= 3 AND prefix ~ '^[a-z]+(-[a-z]+)*$'),
+  created_at TIMESTAMPTZ NOT NULL DEFAULT CLOCK_TIMESTAMP(),
+  last_modified_at TIMESTAMPTZ NOT NULL DEFAULT CLOCK_TIMESTAMP(),
+  last_modified_by UUID REFERENCES internal.user (id) ON DELETE SET NULL
+);
+
+CREATE VIEW api.domain_prefix WITH ( security_invoker = ON
+) AS
+SELECT
+  *
+FROM
+  internal.domain_prefix;
+
+GRANT SELECT, INSERT, UPDATE, DELETE ON internal.domain_prefix TO authenticated_user;
+
+GRANT SELECT, INSERT, UPDATE, DELETE ON api.domain_prefix TO authenticated_user;
+
+ALTER TABLE internal.domain_prefix ENABLE ROW LEVEL SECURITY;
+
+CREATE POLICY view_domain_prefix ON internal.domain_prefix
+  FOR SELECT
+    USING (internal.user_has_website_access (website_id, 10));
+
+CREATE POLICY update_domain_prefix ON internal.domain_prefix
+  FOR UPDATE
+    USING (internal.user_has_website_access (website_id, 30));
+
+CREATE POLICY delete_domain_prefix ON internal.domain_prefix
+  FOR DELETE
+    USING (internal.user_has_website_access (website_id, 30));
+
+CREATE POLICY insert_domain_prefix ON internal.domain_prefix
+  FOR INSERT
+    WITH CHECK (internal.user_has_website_access (website_id, 30));
+
+CREATE TRIGGER update_domain_prefix_last_modified
+  BEFORE INSERT OR UPDATE OR DELETE ON internal.domain_prefix
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.update_last_modified ();
+
+CREATE TRIGGER domain_prefix_track_changes
+  AFTER INSERT OR UPDATE OR DELETE ON internal.domain_prefix
+  FOR EACH ROW
+  EXECUTE FUNCTION internal.track_changes ();
+
+-- migrate:down
+DROP TRIGGER domain_prefix_track_changes ON internal.domain_prefix;
+
+DROP TRIGGER update_domain_prefix_last_modified ON internal.domain_prefix;
+
+DROP VIEW api.domain_prefix;
+
+DROP TABLE internal.domain_prefix;
+