kopia lustrzana https://gitlab.com/marnanel/chapeau
64 wiersze
1.4 KiB
Python
64 wiersze
1.4 KiB
Python
from django.db import models
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import logging
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import json
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logger = logging.getLogger(name='kepi')
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class ThingField(models.Model):
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class Meta:
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constraints = [
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models.UniqueConstraint(
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fields = ['parent', 'field'],
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name = 'parent_field',
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),
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]
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field = models.CharField(
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max_length=255,
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)
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value = models.CharField(
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max_length=255,
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default=None,
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null=True,
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blank=True,
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)
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parent = models.ForeignKey(
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'bowler_pub.AcObject',
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on_delete = models.CASCADE,
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)
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def __str__(self):
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return '%16s: %s' % (
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self.field,
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self.value,
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)
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@property
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def interpreted_value(self):
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if self.value is None:
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return None
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else:
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try:
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return json.loads(self.value)
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except json.decoder.JSONDecodeError:
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logger.warn('Non-JSON value; returning None: %s=%s',
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self.field, self.value)
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return None
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@classmethod
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def get_fields_for(cls, thing,
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):
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result = {}
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for a in cls.objects.filter(
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parent=thing,
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):
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result[a.field] = a.interpreted_value
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return result
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