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from django.contrib.contenttypes.fields import GenericForeignKey
from django.contrib.contenttypes.models import ContentType
from django.db import models
from django.utils.translation import gettext_lazy as _
from common.utils import lazyproperty
from orgs.mixins.models import JMSOrgBaseModel
class Label(JMSOrgBaseModel):
name = models.CharField(max_length=64, verbose_name=_("Name"), db_index=True)
value = models.CharField(max_length=64, unique=False, verbose_name=_("Value"))
internal = models.BooleanField(default=False, verbose_name=_("Internal"))
color = models.CharField(
max_length=32, default="", blank=True, verbose_name=_("Color")
)
class Meta:
unique_together = [("name", "value", "org_id")]
verbose_name = _("Tag")
@lazyproperty
def res_count(self):
return self.labeled_resources.count()
@lazyproperty
def display_name(self):
return "{}:{}".format(self.name, self.value)
def __str__(self):
return "{}:{}".format(self.name, self.value)
class LabeledResource(JMSOrgBaseModel):
label = models.ForeignKey(
Label,
on_delete=models.CASCADE,
related_name="labeled_resources",
verbose_name=_("Tag"),
)
res_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
res_id = models.CharField(
max_length=36, verbose_name=_("Resource ID"), db_index=True
)
resource = GenericForeignKey("res_type", "res_id")
class Meta:
unique_together = [("label", "res_type", "res_id", "org_id")]
verbose_name = _("Tagged resource")
def __str__(self):
return "{} => {}".format(self.label, self.resource)