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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)

export_seznamu_prednasek
Anet 4 years ago
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1 changed files with 1 additions and 1 deletions
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  1. 2
      seminar/models.py

2
seminar/models.py
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@ -1246,7 +1246,7 @@ class TreeNode(PolymorphicModel):
blank = False, blank = False,
on_delete = models.SET_NULL, # Vrcholy s null kořenem jsou sirotci bez ročníku on_delete = models.SET_NULL, # Vrcholy s null kořenem jsou sirotci bez ročníku
verbose_name="kořen stromu") verbose_name="kořen stromu")
first_child = models.ForeignKey('TreeNode', first_child = models.OneToOneField('TreeNode',
related_name='father_of_first', related_name='father_of_first',
null = True, null = True,
blank = True, blank = True,

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