Display popups to create and join team

apps/participation/forms.py

@@ -0,0 +1,28 @@
+from django import forms
+from django.core.exceptions import ValidationError
+
+from .models import Team
+
+
+class TeamForm(forms.ModelForm):
+    class Meta:
+        model = Team
+        fields = ('name', 'trigram', 'grant_animath_access_videos',)
+
+
+class JoinTeamForm(forms.ModelForm):
+    def clean_access_code(self):
+        access_code = self.cleaned_data["access_code"]
+        if not Team.objects.filter(access_code=access_code).exists():
+            raise ValidationError("No team was found with this access code.")
+        return access_code
+
+    def clean(self):
+        cleaned_data = super().clean()
+        if "access_code" in cleaned_data:
+            self.instance = Team.objects.get(access_code=cleaned_data["access_code"])
+        return cleaned_data
+
+    class Meta:
+        model = Team
+        fields = ('access_code',)