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models: změna TreeNode.first_child na OneToOneField místo ForeignKey (kvůli funkčnosti vazby v opačném směru - jinak vrací RelatedManager fuj fuj fuj)

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Anet 2020-04-30 02:02:37 +02:00
parent 322718f436
commit ef62622be3
1 changed files with 1 additions and 1 deletions
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seminar/models.py
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@ -1246,7 +1246,7 @@ class TreeNode(PolymorphicModel):
blank = False,
on_delete = models.SET_NULL, # Vrcholy s null kořenem jsou sirotci bez ročníku
verbose_name="kořen stromu")
first_child = models.ForeignKey('TreeNode',
first_child = models.OneToOneField('TreeNode',
related_name='father_of_first',
null = True,
blank = True,