Add a table of tags and categories

db/migrations/init_tables.py

@@ -11,8 +11,24 @@ async def init_tables(connection: Connection):
         is_admin boolean DEFAULT FALSE \
     );
     """
-
     await connection.execute(init_users_query)
+
+    init_tags_query = """
+    CREATE TABLE tags ( \
+        id SERIAL PRIMARY KEY, \
+        name varchar(100) \
+    );
+    """
+    await connection.execute(init_tags_query)
+
+    init_categories_query = """
+    CREATE TABLE categories ( \
+        id SERIAL PRIMARY KEY, \
+        name varchar(20) \
+    );
+    """
+    await connection.execute(init_categories_query)
+
     init_projects_query = """
     CREATE TABLE projects (
         id SERIAL PRIMARY KEY, \
@@ -21,8 +37,8 @@ async def init_tables(connection: Connection):
         creator bigint REFERENCES users, \
         contributors smallint DEFAULT 1, \
         status bit(1) DEFAULT B'1', \
-        tag varchar(100), \
-        category varchar(20), \
+        tag int REFERENCES tags, \
+        category int REFERENCES categories, \
         creation_date date DEFAULT CURRENT_DATE \
     );
     """