33 lines
889 B
Python
33 lines
889 B
Python
import json
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from django.utils import six
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from django.db import models
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from django.utils.encoding import smart_text
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class DictField(models.TextField):
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"""
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A very simple field to store JSON in db.
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"""
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def get_prep_value(self, value):
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if not value:
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value = {}
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if not isinstance(value, six.string_types):
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value = json.dumps(value)
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return value
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def from_db_value(self, value, expression, connection):
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return self.to_python(value)
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def to_python(self, value):
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if not value:
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value = {}
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if isinstance(value, six.string_types):
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return json.loads(value)
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else:
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return value
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def value_to_string(self, obj):
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"""Return value from object converted to string properly"""
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return smart_text(self.get_prep_value(self.value_from_object(obj)))
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