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add value_to_string to custom fields

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Laura Klünder 2017-10-10 12:48:10 +02:00
parent 5cb3182703
commit b775c5a91e
1 changed files with 8 additions and 0 deletions
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8
src/c3nav/mapdata/fields.py
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@ -82,6 +82,10 @@ class GeometryField(models.TextField):
json_value = format_geojson(mapping(rounded_value.buffer(0)))
return json.dumps(json_value)
def value_to_string(self, obj):
value = self.value_from_object(obj)
return self.get_prep_value(value)
class JSONField(models.TextField):
def from_db_value(self, value, expression, connection, context):
@ -94,3 +98,7 @@ class JSONField(models.TextField):
def get_prep_value(self, value):
return json.dumps(value)
def value_to_string(self, obj):
value = self.value_from_object(obj)
return self.get_prep_value(value)