indexes

Main/models/extrafile.py

@@ -13,6 +13,11 @@ class ExtraFile(FileStorageMixin, models.Model):
     test_number = models.IntegerField(null=True)
     fs_id = models.IntegerField(null=True)
 
+    class Meta:
+        indexes = [
+            models.Index(fields=['task'])
+        ]
+
     @property
     def can_be_sample(self):
         return (

Main/models/friendship.py

@@ -6,3 +6,9 @@ class Friendship(models.Model):
     from_user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="from_friendship")
     to_user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="to_friendship")
     verified = models.BooleanField(default=False)
+
+    class Meta:
+        indexes = [
+            models.Index(fields=['from_user']),
+            models.Index(fields=['to_user'])
+        ]

Main/models/message.py

@@ -11,3 +11,8 @@ class Message(models.Model):
     text = models.TextField()
     read = models.BooleanField(default=False)
     time_sent = models.DateTimeField(default=timezone.now)
+
+    class Meta:
+        indexes = [
+            models.Index(fields=['chat', '-time_sent'])
+        ]

Main/models/progress.py

@@ -15,6 +15,11 @@ class Progress(models.Model):
     score = models.IntegerField(default=0)
     finished = models.BooleanField(default=False)
 
+    class Meta:
+        indexes = [
+            models.Index(fields=['user', 'task'])
+        ]
+
     @property
     def time(self):
         if not self.finished:

Main/models/settask.py

@@ -8,3 +8,8 @@ class SetTask(models.Model):
     set = models.ForeignKey(Set, on_delete=models.CASCADE, related_name="settasks")
     task = models.ForeignKey(Task, on_delete=models.CASCADE, related_name="settasks")
     name = models.CharField(max_length=2)
+
+    class Meta:
+        indexes = [
+            models.Index(fields=['set'])
+        ]

Main/models/solution.py

@@ -21,6 +21,12 @@ class Solution(models.Model):
     result = models.TextField(default=CONSTS["in_queue_status"])
     test = models.IntegerField(default=None, null=True)
 
+    class Meta:
+        indexes = [
+            models.Index(fields=['task', 'user', '-time_sent']),
+            models.Index(fields=['task', '-time_sent'])
+        ]
+
     @property
     def language(self):
         return languages[self.language_id]

Main/models/solution_file.py

@@ -7,3 +7,8 @@ class SolutionFile(FileStorageMixin, models.Model):
     path = models.TextField()
     fs_id = models.IntegerField()
     solution = models.ForeignKey("Solution", on_delete=models.CASCADE)
+
+    class Meta:
+        indexes = [
+            models.Index(fields=['solution'])
+        ]