Implement notification rules and settings

core/views/notifications.py

@@ -0,0 +1,57 @@
+from django.contrib.auth.mixins import LoginRequiredMixin
+from core.forms import NotificationRuleForm, NotificationSettingsForm
+from core.models import NotificationRule, NotificationSettings
+
+from core.views.helpers import ObjectCreate, ObjectList, ObjectUpdate, ObjectDelete
+
+# Notifications - we create a new notification settings object if there isn't one
+# Hence, there is only an update view, not a create view.
+class NotificationsUpdate(LoginRequiredMixin, ObjectUpdate):
+    model = NotificationSettings
+    form_class = NotificationSettingsForm
+
+    page_title = "Update your notification settings"
+    page_subtitle = (
+        "At least the topic must be set if you want to receive notifications."
+    )
+
+    submit_url_name = "notifications_update"
+    submit_url_args = ["type"]
+
+    pk_required = False
+
+    hide_cancel = True
+
+    def get_object(self, **kwargs):
+        notification_settings, _ = NotificationSettings.objects.get_or_create(
+            user=self.request.user
+        )
+        return notification_settings
+
+class RuleList(LoginRequiredMixin, ObjectList):
+    list_template = "partials/rule-list.html"
+    model = NotificationRule
+    page_title = "List of notification rules."
+
+    list_url_name = "rules"
+    list_url_args = ["type"]
+
+    submit_url_name = "rule_create"
+
+
+class RuleCreate(LoginRequiredMixin, ObjectCreate):
+    model = NotificationRule
+    form_class = NotificationRuleForm
+
+    submit_url_name = "rule_create"
+
+
+class RuleUpdate(LoginRequiredMixin, ObjectUpdate):
+    model = NotificationRule
+    form_class = NotificationRuleForm
+
+    submit_url_name = "rule_update"
+
+
+class RuleDelete(LoginRequiredMixin, ObjectDelete):
+    model = NotificationRule