Add avatar column and getter/setter

mocha_server.py

@@ -161,6 +161,37 @@ def update(user_id, score):
     return '[]'
 
 
+def set_avatar(user_id, new_avatar):
+    conn = sqlite3.connect(DATABASE)
+    conn.row_factory = sqlite3.Row
+    cursor = conn.cursor()
+    cursor.execute('UPDATE users SET avatar = (?) WHERE user_id = (?)',
+                   (new_avatar, user_id))
+    conn.commit()
+    conn.close()
+
+    return '[]'
+
+
+def get_avatar(user_id):
+    conn = sqlite3.connect(DATABASE)
+    conn.row_factory = sqlite3.Row
+    cursor = conn.cursor()
+    cursor.execute(
+        'SELECT avatar FROM users WHERE user_id = (?)',
+        (user_id))
+
+    output = cursor.fetchall()
+    output = json.dumps([dict(row) for row in output])
+    conn.commit()
+    conn.close()
+
+    if output == '[]':
+        output = None
+
+    return output
+
+
 def process_request(uri):
     '''
     Handles the API endpoint.
@@ -215,10 +246,8 @@ def application(environ, start_response):
 
 
 if __name__ == '__main__':
-    new_score = random.randint(1, 100)
-    print(fetch_user(1))
-    print(new_score)
-    update(1, new_score)
-    print(fetch_user(1))
+    print(get_avatar('1'))
+    set_avatar('1', 'newavatar')
+    print(get_avatar('1'))
 
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