Initial commit from ZIP

evg-outbo-api/outbo/apps/activity_log/models.py

@@ -0,0 +1,65 @@
+from django.db import models
+from django.utils.translation import pgettext, gettext_lazy as _
+from rules import always_allow
+
+from outbo.apps.activity_log.enums import MessageType
+from outbo.apps.core.models import (
+    TimestampableDeletableMixin,
+    RulesPolymorphicModel,
+    SoftDeletablePolymorphicManager,
+)
+
+
+class LogItem(TimestampableDeletableMixin, RulesPolymorphicModel):
+    objects = SoftDeletablePolymorphicManager()
+    all_objects = SoftDeletablePolymorphicManager(alive_only=False)
+
+    message = models.TextField(verbose_name=_("message"))
+    message_type = models.CharField(
+        verbose_name=_("message type"),
+        max_length=25,
+        blank=False,
+        null=False,
+        default=MessageType.USER,
+        choices=((type, type.value) for type in MessageType),
+    )
+    created_by = models.ForeignKey(
+        verbose_name=_("created by"), to="authentication.User", on_delete=models.CASCADE
+    )
+
+    def __str__(self):
+        if self.message_type == MessageType.USER:
+            return self.message
+        return pgettext("log_item_messages", self.message)
+
+
+class ProductLogItem(LogItem):
+    class Meta:
+        rules_permissions = {"view": always_allow, "add": always_allow}
+        ordering = ["-created_at"]
+
+    product = models.ForeignKey(
+        verbose_name=_("product"),
+        to="products.Product",
+        on_delete=models.CASCADE,
+        related_name="log_items",
+        related_query_name="log_item",
+    )
+
+    stage = models.ForeignKey(
+        to="products.ProductStage", on_delete=models.CASCADE, null=True, default=None
+    )
+
+
+class ProjectLogItem(LogItem):
+    class Meta:
+        rules_permissions = {"view": always_allow, "add": always_allow}
+        ordering = ["-created_at"]
+
+    project = models.ForeignKey(
+        verbose_name=_("project"),
+        to="projects.Project",
+        on_delete=models.CASCADE,
+        related_name="log_items",
+        related_query_name="log_item",
+    )