32 lines
811 B
Python
32 lines
811 B
Python
import json
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from django import forms
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from django.utils.translation import ugettext_lazy as _
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__all__ = ['JSONField']
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class JSONField(forms.CharField):
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default_error_messages = {
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'invalid': _("'%(value)s' value must be valid JSON."),
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}
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def __init__(self, **kwargs):
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kwargs.setdefault('widget', forms.Textarea)
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super(JSONField, self).__init__(**kwargs)
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def to_python(self, value):
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if value in self.empty_values:
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return None
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try:
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return json.loads(value)
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except ValueError:
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raise forms.ValidationError(
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self.error_messages['invalid'],
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code='invalid',
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params={'value': value},
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)
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def prepare_value(self, value):
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return json.dumps(value)
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