diff --git a/backend/randpic/models.py b/backend/randpic/models.py
index 9132bfe..d78ec7d 100644
--- a/backend/randpic/models.py
+++ b/backend/randpic/models.py
@@ -5,7 +5,7 @@ class Picture(models.Model):
     name = models.CharField(max_length=100)
     description = models.TextField()
     author = models.CharField(max_length=100)
+    author_url=models.URLField()
     original_url = models.URLField()
-
     def __str__(self):
-        return self.title
\ No newline at end of file
+        return self.name
\ No newline at end of file
diff --git a/backend/randpic/random_picture.py b/backend/randpic/random_picture.py
index 84955ef..fd45586 100644
--- a/backend/randpic/random_picture.py
+++ b/backend/randpic/random_picture.py
@@ -1,5 +1,8 @@
 import json
 import random
+from .models import Picture
+
+pics=Picture.objects.order_by("?")
 
 def get_random_picture():
     with open("./jsons/pics.json") as f:
diff --git a/backend/tianyi/settings.py b/backend/tianyi/settings.py
index dad57ff..448271d 100644
--- a/backend/tianyi/settings.py
+++ b/backend/tianyi/settings.py
@@ -31,6 +31,7 @@ ALLOWED_HOSTS = []
 # Application definition
 
 INSTALLED_APPS = [
+    'randpic.apps.RandpicConfig',
     'django.contrib.admin',
     'django.contrib.auth',
     'django.contrib.contenttypes',