From 09c8819c4e7d6afcf07625693a5be6a9e5a78582 Mon Sep 17 00:00:00 2001
From: virusdefender <virusdefender@outlook.com>
Date: Sat, 9 Dec 2017 22:31:13 +0800
Subject: [PATCH 1/2] migration to delete user output
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u need to run “vacuum full submission” to reduce db file size
---
 .../migrations/0009_delete_user_output.py     | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 submission/migrations/0009_delete_user_output.py

diff --git a/submission/migrations/0009_delete_user_output.py b/submission/migrations/0009_delete_user_output.py
new file mode 100644
index 00000000..be4e6e1b
--- /dev/null
+++ b/submission/migrations/0009_delete_user_output.py
@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import migrations
+
+
+def delete_user_output(apps, schema_editor):
+    Submission = apps.get_model("submission", "Submission")
+    for item in Submission.objects.all():
+        if "data" in item.info and isinstance(item.info["data"], list):
+            for index in range(len(item.info["data"])):
+                item.info["data"][index]["output"] = ""
+        item.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('submission', '0008_submission_ip'),
+    ]
+
+    operations = [
+        migrations.RunPython(delete_user_output, reverse_code=migrations.RunPython.noop)
+    ]

From d15c4aa60c291bed650d7604365b39cbe5486677 Mon Sep 17 00:00:00 2001
From: virusdefender <virusdefender@outlook.com>
Date: Sat, 9 Dec 2017 22:34:05 +0800
Subject: [PATCH 2/2] do not save user output

---
 judge/dispatcher.py                              | 4 ++--
 submission/migrations/0009_delete_user_output.py | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/judge/dispatcher.py b/judge/dispatcher.py
index 1b7b6e5c..85894258 100644
--- a/judge/dispatcher.py
+++ b/judge/dispatcher.py
@@ -117,7 +117,7 @@ class JudgeDispatcher(DispatcherBase):
                 return
             self.submission.statistic_info["score"] = score
 
-    def judge(self, output=True):
+    def judge(self):
         server = self.choose_judge_server()
         if not server:
             data = {"submission_id": self.submission.id, "problem_id": self.problem.id}
@@ -145,7 +145,7 @@ class JudgeDispatcher(DispatcherBase):
             "max_cpu_time": self.problem.time_limit,
             "max_memory": 1024 * 1024 * self.problem.memory_limit,
             "test_case_id": self.problem.test_case_id,
-            "output": output,
+            "output": False,
             "spj_version": self.problem.spj_version,
             "spj_config": spj_config.get("config"),
             "spj_compile_config": spj_config.get("compile"),
diff --git a/submission/migrations/0009_delete_user_output.py b/submission/migrations/0009_delete_user_output.py
index be4e6e1b..66c90c41 100644
--- a/submission/migrations/0009_delete_user_output.py
+++ b/submission/migrations/0009_delete_user_output.py
@@ -10,7 +10,7 @@ def delete_user_output(apps, schema_editor):
         if "data" in item.info and isinstance(item.info["data"], list):
             for index in range(len(item.info["data"])):
                 item.info["data"][index]["output"] = ""
-        item.save()
+            item.save()
 
 
 class Migration(migrations.Migration):