Adrian A. Baumann
f7a20648b2
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38 lines
1.2 KiB
Python
38 lines
1.2 KiB
Python
from django.db import models
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from mptt.models import MPTTModel, TreeForeignKey
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from abschnitte.models import Textabschnitt
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# Create your models here.
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class Referenz(MPTTModel):
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id = models.AutoField(primary_key=True)
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name_nummer = models.CharField(max_length=100)
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name_text=models.CharField(max_length=255, blank=True)
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oberreferenz = TreeForeignKey(
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'self', null=True, blank=True, on_delete=models.SET_NULL, related_name='unterreferenzen'
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)
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url = models.URLField(blank=True)
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def Path(self):
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path = " → ".join([x.name_nummer for x in self.get_ancestors(include_self=True)])
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if self.name_text:
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path += " (%s)" % self.name_text
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return path
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class MPTTMeta:
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parent_attr = 'oberreferenz' # optional, but safe
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order_insertion_by = ['name_nummer']
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def __str__(self):
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return self.Path()
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class Meta:
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verbose_name_plural="Referenzen"
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verbose_name="Referenz"
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class Referenzerklaerung (Textabschnitt):
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erklaerung = models.ForeignKey(Referenz,on_delete=models.CASCADE)
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class Meta:
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verbose_name="Erklärung"
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verbose_name_plural="Erklärungen"
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