Sql schema now has requested_by as a foreign key for user_name and on delete set null clause.

seasoned_api/src/database/schemas/setup.sql

@@ -36,12 +36,13 @@ CREATE TABLE IF NOT EXISTS requests(
     year NUMBER,
     poster_path TEXT DEFAULT NULL,
     background_path TEXT DEFAULT NULL,
-    requested_by TEXT,
+    requested_by varchar(127) DEFAULT NULL,
     ip TEXT,
     date DATE DEFAULT CURRENT_TIMESTAMP,
     status CHAR(25) DEFAULT 'requested' NOT NULL,
     user_agent CHAR(255) DEFAULT NULL,
-    type CHAR(50) DEFAULT 'movie'
+    type CHAR(50) DEFAULT 'movie',
+    foreign key(requested_by) REFERENCES user(user_name) ON DELETE SET NULL
 );
 
 CREATE TABLE IF NOT EXISTS request(