Setup models and database

apps/registration/models.py

@@ -1,3 +1,88 @@
 from django.db import models
+from django.utils.translation import gettext_lazy as _
+from polymorphic.models import PolymorphicModel
 
-# Create your models here.
+
+class Registration(PolymorphicModel):
+    user = models.OneToOneField(
+        "auth.User",
+        on_delete=models.CASCADE,
+        verbose_name=_("user"),
+    )
+
+    team = models.ForeignKey(
+        "participation.Team",
+        on_delete=models.PROTECT,
+        null=True,
+        default=None,
+        verbose_name=_("team"),
+    )
+
+    give_contact_to_animath = models.BooleanField(
+        default=False,
+        verbose_name=_("Grant Animath to contact me in the future about other actions"),
+    )
+
+    @property
+    def type(self):
+        raise NotImplementedError
+
+    def __str__(self):
+        return _("registration of {first_name} {last_name}")\
+            .format(first_name=self.user.first_name, last_name=self.user.last_name)
+
+    class Meta:
+        verbose_name = _("registration")
+        verbose_name_plural = _("registrations")
+
+
+class StudentRegistration(Registration):
+    student_class = models.IntegerField(
+        choices=[
+            (12, _("12th grade")),
+            (11, _("11th grade")),
+            (10, _("10th grade or lower")),
+        ],
+        verbose_name=_("student class"),
+    )
+
+    school = models.CharField(
+        max_length=255,
+        verbose_name=_("school"),
+    )
+
+    @property
+    def type(self):
+        return _("student")
+
+    class Meta:
+        verbose_name = _("student registration")
+        verbose_name_plural = _("student registrations")
+
+
+class CoachRegistration(Registration):
+    professional_activity = models.TextField(
+        verbose_name=_("professional activity"),
+    )
+
+    @property
+    def type(self):
+        return _("coach")
+
+    class Meta:
+        verbose_name = _("coach registration")
+        verbose_name_plural = _("coach registrations")
+
+
+class AdminRegistration(Registration):
+    role = models.TextField(
+        verbose_name=_("role of the administrator"),
+    )
+
+    @property
+    def type(self):
+        return _("admin")
+
+    class Meta:
+        verbose_name = _("admin registration")
+        verbose_name_plural = _("admin registrations")