49 lines
1.6 KiB
Python
49 lines
1.6 KiB
Python
from django.db import models
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from django.db.models import Q
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from .workspace import WorkspaceBaseModel
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class Label(WorkspaceBaseModel):
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parent = models.ForeignKey(
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"self",
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on_delete=models.CASCADE,
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null=True,
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blank=True,
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related_name="parent_label",
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)
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name = models.CharField(max_length=255)
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description = models.TextField(blank=True)
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color = models.CharField(max_length=255, blank=True)
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sort_order = models.FloatField(default=65535)
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external_source = models.CharField(max_length=255, null=True, blank=True)
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external_id = models.CharField(max_length=255, blank=True, null=True)
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class Meta:
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unique_together = ["name", "project", "deleted_at"]
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constraints = [
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models.UniqueConstraint(
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fields=["name", "project"],
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condition=Q(deleted_at__isnull=True),
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name="label_unique_name_project_when_deleted_at_null",
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)
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]
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verbose_name = "Label"
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verbose_name_plural = "Labels"
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db_table = "labels"
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ordering = ("-created_at",)
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def save(self, *args, **kwargs):
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if self._state.adding:
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# Get the maximum sequence value from the database
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last_id = Label.objects.filter(project=self.project).aggregate(
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largest=models.Max("sort_order")
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)["largest"]
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# if last_id is not None
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if last_id is not None:
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self.sort_order = last_id + 10000
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super(Label, self).save(*args, **kwargs)
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def __str__(self):
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return str(self.name)
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