Setup models and database

apps/participation/models.py

@@ -1,3 +1,113 @@
+from django.core.validators import RegexValidator
 from django.db import models
+from django.db.models import Index
+from django.utils.translation import gettext_lazy as _
 
-# Create your models here.
+
+class Team(models.Model):
+    name = models.CharField(
+        max_length=255,
+        verbose_name=_("name"),
+        unique=True,
+    )
+
+    trigram = models.CharField(
+        max_length=3,
+        verbose_name=_("trigram"),
+        help_text=_("The trigram must be composed of 3 uppercase letters."),
+        unique=True,
+        validators=[RegexValidator("[A-Z]{3}")],
+    )
+
+    access_code = models.CharField(
+        max_length=6,
+        verbose_name=_("access code"),
+        help_text=_("The access code let other people to join the team."),
+    )
+
+    def __str__(self):
+        return _("Team {name} ({trigram})").format(name=self.name, trigram=self.trigram)
+
+    class Meta:
+        verbose_name = _("team")
+        verbose_name_plural = _("teams")
+        indexes = [
+            Index(fields=("trigram", )),
+        ]
+
+
+class Participation(models.Model):
+    team = models.OneToOneField(
+        Team,
+        on_delete=models.CASCADE,
+        verbose_name=_("team"),
+    )
+
+    problem = models.IntegerField(
+        choices=[(i, _("Problem #{problem:d}").format(problem=i)) for i in range(1, 5)],
+        null=True,
+        default=None,
+        verbose_name=_("problem number"),
+    )
+
+    solution = models.ForeignKey(
+        "participation.Video",
+        on_delete=models.SET_NULL,
+        related_name="+",
+        null=True,
+        default=None,
+        verbose_name=_("solution video"),
+    )
+
+    received_participation = models.OneToOneField(
+        "participation.Participation",
+        on_delete=models.PROTECT,
+        related_name="sent_participation",
+        null=True,
+        default=None,
+        verbose_name=_("received participation"),
+    )
+
+    synthesis = models.ForeignKey(
+        "participation.Video",
+        on_delete=models.SET_NULL,
+        related_name="+",
+        null=True,
+        default=None,
+        verbose_name=_("synthesis video"),
+    )
+
+    def __str__(self):
+        return _("Participation of the team {name} ({trigram})").format(name=self.team.name, trigram=self.team.trigram)
+
+    class Meta:
+        verbose_name = _("participation")
+        verbose_name_plural = _("participations")
+
+
+class Video(models.Model):
+    participation = models.ForeignKey(
+        "participation.Participation",
+        on_delete=models.CASCADE,
+        verbose_name=_("participation"),
+    )
+
+    link = models.URLField(
+        verbose_name=_("link"),
+        help_text=_("The full video link."),
+    )
+
+    valid = models.BooleanField(
+        null=True,
+        default=None,
+        verbose_name=_("valid"),
+        help_text=_("The video got the validation of the administrators."),
+    )
+
+    def __str__(self):
+        return _("Video of team {name} ({trigram})")\
+            .format(name=self.participation.team.name, trigram = self.participation.team.trigram)
+
+    class Meta:
+        verbose_name = _("video")
+        verbose_name_plural = _("videos")