added other data models from the specs

src/mainapp/admin.py

@@ -2,7 +2,7 @@
 
 from django.contrib import admin
 
-from .models import Peg
+from .models import Peg, Member, Team, Section
 
 
 @admin.register(Peg)
@@ -14,3 +14,28 @@ class PegAdmin(admin.ModelAdmin):
     list_display = ("peg_number",)
     search_fields = ("peg_number",)
 
+
+@admin.register(Member)
+class MemberAdmin(admin.ModelAdmin):
+    """Admin model for the Member model."""
+
+    list_display = ("first_name", "last_name", "user", "team", "peg")
+    search_fields = ("first_name", "last_name", "user", "team", "peg")
+    list_filter = ("team", "peg")
+
+
+@admin.register(Team)
+class TeamAdmin(admin.ModelAdmin):
+    """Admin model for the Team model."""
+
+    readonly_fields = ("team_number",)
+    list_display = ("team_number",)
+    search_fields = ("team_number",)
+
+
+@admin.register(Section)
+class SectionAdmin(admin.ModelAdmin):
+    """Admin model for the Section model."""
+
+    list_display = ("character",)
+    search_fields = ("character",)

src/mainapp/migrations/0001_initial.py

@@ -1,6 +1,8 @@
-# Generated by Django 4.1.5 on 2023-01-26 09:11
+# Generated by Django 4.1.5 on 2023-01-26 14:24
 
-from django.db import migrations
+from django.conf import settings
+from django.db import migrations, models
+import django.db.models.deletion
 import mainapp.models
 
 
@@ -9,6 +11,7 @@ class Migration(migrations.Migration):
     initial = True
 
     dependencies = [
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
     ]
 
     operations = [
@@ -18,4 +21,27 @@ class Migration(migrations.Migration):
                 ('peg_number', mainapp.models.ReusableAutoField(default=mainapp.models.ReusableAutoField.get_default, editable=False, primary_key=True, serialize=False)),
             ],
         ),
+        migrations.CreateModel(
+            name='Section',
+            fields=[
+                ('character', models.CharField(max_length=1, primary_key=True, serialize=False, validators=[mainapp.models.validate_section_character])),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Team',
+            fields=[
+                ('team_number', mainapp.models.ReusableAutoField(default=mainapp.models.ReusableAutoField.get_default, editable=False, primary_key=True, serialize=False)),
+                ('section', models.OneToOneField(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='mainapp.section')),
+            ],
+        ),
+        migrations.CreateModel(
+            name='Member',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('first_name', models.CharField(max_length=255)),
+                ('last_name', models.CharField(max_length=255)),
+                ('team', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='mainapp.team')),
+                ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL)),
+            ],
+        ),
     ]

src/mainapp/migrations/0002_member_peg_alter_member_team.py

@@ -0,0 +1,25 @@
+# Generated by Django 4.1.5 on 2023-01-26 14:31
+
+from django.db import migrations, models
+import django.db.models.deletion
+import mainapp.models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mainapp', '0001_initial'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='member',
+            name='peg',
+            field=models.OneToOneField(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='mainapp.peg'),
+        ),
+        migrations.AlterField(
+            model_name='member',
+            name='team',
+            field=models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, to='mainapp.team', validators=[mainapp.models.validate_team_size]),
+        ),
+    ]

src/mainapp/models.py

@@ -1,4 +1,5 @@
 from django.db import models
+from django.core.exceptions import ValidationError
 
 # products/models.py
 from django.db import models
@@ -24,6 +25,8 @@ class ReusableAutoField(models.PositiveIntegerField):
         return 1
 
     def get_default(self):
+        """Returns the default value for this field"""
+
         return self.get_next_available_id(self.model)
 
 
@@ -33,16 +36,58 @@ class Peg(models.Model):
     peg_number = ReusableAutoField(primary_key=True, default=ReusableAutoField.get_default, editable=False)
 
     def __str__(self):
-        return f"{self.peg_number}"
+        return f"Peg {self.peg_number}"
 
 
-def get_next_available_peg_id():
-    queryset = Peg.__class__._default_manager.all()
-    try:
-        last_id = queryset.order_by("-pk")[0].pk
-    except IndexError:
-        last_id = 0
-    return last_id + 1
+def validate_team_size(value):
+    if Member.objects.filter(team=value).count() >= 3:
+        raise ValidationError('Team already has maximal amount of members (3)')
+
+
+class Member(models.Model):
+    """Represents a member of a team"""
+
+    first_name = models.CharField(max_length=255)
+    last_name = models.CharField(max_length=255)
+    user = models.OneToOneField("auth.User", on_delete=models.CASCADE)
+    team = models.ForeignKey("Team", on_delete=models.SET_NULL, null=True, blank=True, validators=(validate_team_size,))
+    peg = models.OneToOneField("Peg", on_delete=models.SET_NULL, null=True, blank=True)
+
+    def __str__(self):
+        return f"{self.first_name} {self.last_name} (team {self.team.team_number}))"
+
+
+class Team(models.Model):
+    """Represents a team"""
+
+    team_number = ReusableAutoField(primary_key=True, default=ReusableAutoField.get_default, editable=False)
+    section = models.OneToOneField("Section", on_delete=models.SET_NULL, null=True, blank=True)
+
+    def __str__(self):
+        return f"Team {self.team_number}"
+
+
+def validate_section_character(value):
+    """Validates the section character"""
+
+    value = value.upper()
+    banned_characters = ["I"]
+
+    if value in banned_characters:
+        raise ValidationError(f"The character <{value}> is a prohibited character because fuck you I guess")
+
+
+class Section(models.Model):
+    """Represents a section of the scoreboard"""
+
+    # character field stores a single character but doesnt allow for 'E' or 'e'
+    character = models.CharField(primary_key=True, max_length=1, validators=(validate_section_character, ))
+
+    def clean(self):
+        self.character = self.character.upper()
+
+    def __str__(self):
+        return f"Section {self.character}"
 
 
 #class Scoreboard(models.Model):