base

2026-04-18 18:39:25 +03:00
commit 3ba092b60c
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+# Copyright (c) 2023-present Plane Software, Inc. and contributors
+# SPDX-License-Identifier: AGPL-3.0-only
+# See the LICENSE file for details.
+
+from django.db import models
+from django.db.models import Q
+
+from .workspace import WorkspaceBaseModel
+
+
+class Label(WorkspaceBaseModel):
+    parent = models.ForeignKey(
+        "self",
+        on_delete=models.CASCADE,
+        null=True,
+        blank=True,
+        related_name="parent_label",
+    )
+    name = models.CharField(max_length=255)
+    description = models.TextField(blank=True)
+    color = models.CharField(max_length=255, blank=True)
+    sort_order = models.FloatField(default=65535)
+    external_source = models.CharField(max_length=255, null=True, blank=True)
+    external_id = models.CharField(max_length=255, blank=True, null=True)
+
+    class Meta:
+        constraints = [
+            # Enforce uniqueness of name when project is NULL and deleted_at is NULL
+            models.UniqueConstraint(
+                fields=["name"],
+                condition=Q(project__isnull=True, deleted_at__isnull=True),
+                name="unique_name_when_project_null_and_not_deleted",
+            ),
+            # Enforce uniqueness of project and name when project is not NULL and deleted_at is NULL
+            models.UniqueConstraint(
+                fields=["project", "name"],
+                condition=Q(project__isnull=False, deleted_at__isnull=True),
+                name="unique_project_name_when_not_deleted",
+            ),
+        ]
+        verbose_name = "Label"
+        verbose_name_plural = "Labels"
+        db_table = "labels"
+        ordering = ("-created_at",)
+
+    def save(self, *args, **kwargs):
+        if self._state.adding:
+            # Get the maximum sequence value from the database
+            last_id = Label.objects.filter(project=self.project).aggregate(largest=models.Max("sort_order"))["largest"]
+            # if last_id is not None
+            if last_id is not None:
+                self.sort_order = last_id + 10000
+
+        super(Label, self).save(*args, **kwargs)
+
+    def __str__(self):
+        return str(self.name)