Add Passage model

apps/participation/models.py

@@ -5,6 +5,7 @@ import os
 
 from address.models import AddressField
 from django.conf import settings
+from django.core.exceptions import ValidationError
 from django.core.validators import RegexValidator
 from django.db import models
 from django.db.models import Index
@@ -324,6 +325,59 @@ class Pool(models.Model):
         verbose_name_plural = _("pools")
 
 
+class Passage(models.Model):
+    pool = models.ForeignKey(
+        Pool,
+        on_delete=models.CASCADE,
+        verbose_name=_("pool"),
+        related_name="passages",
+    )
+
+    place = models.CharField(
+        verbose_name=_("place"),
+        max_length=255,
+        help_text=_("Where the solution is presented?"),
+        default="Non indiqué",
+    )
+
+    defender = models.ForeignKey(
+        Participation,
+        on_delete=models.PROTECT,
+        verbose_name=_("defender"),
+        related_name="+",
+    )
+
+    opponent = models.ForeignKey(
+        Participation,
+        on_delete=models.PROTECT,
+        verbose_name=_("opponent"),
+        related_name="+",
+    )
+
+    reporter = models.ForeignKey(
+        Participation,
+        on_delete=models.PROTECT,
+        verbose_name=_("reporter"),
+        related_name="+",
+    )
+
+    def clean(self):
+        if self.defender not in self.pool.participations.all():
+            raise ValidationError(_("Team {trigram} is not registered in the pool.")
+                                  .format(trigram=self.defender.team.trigram))
+        if self.opponent not in self.pool.participations.all():
+            raise ValidationError(_("Team {trigram} is not registered in the pool.")
+                                  .format(trigram=self.opponent.team.trigram))
+        if self.reporter not in self.pool.participations.all():
+            raise ValidationError(_("Team {trigram} is not registered in the pool.")
+                                  .format(trigram=self.reporter.team.trigram))
+        return super().clean()
+
+    class Meta:
+        verbose_name = _("passage")
+        verbose_name_plural = _("passages")
+
+
 def get_solution_filename(instance, filename):
     return f"solutions/{instance.participation.team.trigram}_{instance.problem}" \
            + ("final" if instance.final_solution else "")
@@ -378,11 +432,11 @@ class Synthesis(models.Model):
         verbose_name=_("participation"),
     )
 
-    pool = models.ForeignKey(
-        Pool,
+    passage = models.ForeignKey(
+        Passage,
         on_delete=models.CASCADE,
         related_name="syntheses",
-        verbose_name=_("pool"),
+        verbose_name=_("passage"),
     )
 
     type = models.PositiveSmallIntegerField(
@@ -400,10 +454,7 @@ class Synthesis(models.Model):
         default="",
     )
 
-    def __str__(self):
-        return repr(self)
-
     class Meta:
         verbose_name = _("synthesis")
         verbose_name_plural = _("syntheses")
-        unique_together = (('participation', 'pool', 'type', ), )
+        unique_together = (('participation', 'passage', 'type', ), )