Display team solutions

apps/member/models.py

@@ -241,6 +241,7 @@ class Solution(Document):
     class Meta:
         verbose_name = _("solution")
         verbose_name_plural = _("solutions")
+        unique_together = ('team', 'problem',)
 
     def __str__(self):
         return _("Solution of team {trigram} for problem {problem}")\
@@ -265,6 +266,14 @@ class Synthesis(Document):
         verbose_name=_("dest"),
     )
 
+    round = models.PositiveSmallIntegerField(
+        choices=[
+            (1, _("Round 1")),
+            (2, _("Round 2")),
+        ],
+        verbose_name=_("round"),
+    )
+
     def save(self, **kwargs):
         self.type = "synthesis"
         super().save(**kwargs)