Prepare database model

Signed-off-by: Emmy D'Anello <emmy.danello@animath.fr>

draw/models.py

@@ -0,0 +1,102 @@
+# Copyright (C) 2023 by Animath
+# SPDX-License-Identifier: GPL-3.0-or-later
+from django.conf import settings
+from django.db import models
+from django.utils.text import format_lazy
+from django.utils.translation import gettext_lazy as _
+
+from participation.models import Participation, Tournament
+
+
+class Draw(models.Model):
+    tournament = models.OneToOneField(
+        Tournament,
+        on_delete=models.CASCADE,
+        verbose_name=_('tournament'),
+    )
+
+    class Meta:
+        verbose_name = _('draw')
+        verbose_name_plural = _('draws')
+
+
+class Round(models.Model):
+    draw = models.ForeignKey(
+        Draw,
+        on_delete=models.CASCADE,
+        verbose_name=_('draw'),
+    )
+
+    number = models.IntegerField(
+        choices=[
+            (1, _('Round 1')),
+            (2, _('Round 2')),
+        ],
+        verbose_name=_('number'),
+    )
+
+    def __str__(self):
+        return self.get_number_display()
+
+    class Meta:
+        verbose_name = _('round')
+        verbose_name_plural = _('rounds')
+
+
+class Pool(models.Model):
+    round = models.ForeignKey(
+        Round,
+        on_delete=models.CASCADE,
+    )
+
+    letter = models.CharField(
+        max_length=1,
+        choices=[
+            ('A', 'A'),
+            ('B', 'B'),
+            ('C', 'C'),
+        ],
+        verbose_name=_('letter'),
+    )
+
+    def __str__(self):
+        return f"{self.letter}{self.round}"
+
+    class Meta:
+        verbose_name = _('pool')
+        verbose_name_plural = _('pools')
+
+
+class TeamDraw(models.Model):
+    participation = models.ForeignKey(
+        Participation,
+        on_delete=models.CASCADE,
+        verbose_name=_('participation'),
+    )
+
+    accepted = models.IntegerField(
+        choices=[
+            (i, format_lazy(_("Problem #{problem}"), problem=i)) for i in range(1, settings.PROBLEM_COUNT + 1)
+        ],
+        null=True,
+        default=None,
+        verbose_name=_("accepted problem"),
+    )
+
+    purposed = models.IntegerField(
+        choices=[
+            (i, format_lazy(_("Problem #{problem}"), problem=i)) for i in range(1, settings.PROBLEM_COUNT + 1)
+        ],
+        null=True,
+        default=None,
+        verbose_name=_("accepted problem"),
+    )
+
+    rejected = models.JSONField(
+        default=[],
+        verbose_name=_('rejected problems'),
+    )
+
+    class Meta:
+        verbose_name = _('team draw')
+        verbose_name_plural = _('team draws')