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API: Add invoice line position to invoice object

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Raphael Michel
2019-11-07 15:43:22 +01:00
parent 3f7f04ed21
commit 25cfa8973c
3 changed files with 28 additions and 1 deletions
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17
src/pretix/api/serializers/order.py
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@@ -905,10 +905,25 @@ class OrderCreateSerializer(I18nAwareModelSerializer):
return order
class LinePositionField(serializers.IntegerField):
"""
Internally, the position field is stored starting at 0, but for the API, starting at 1 makes it
more consistent with other models
"""
def to_representation(self, value):
return super().to_representation(value) + 1
def to_internal_value(self, data):
return super().to_internal_value(data) - 1
class InlineInvoiceLineSerializer(I18nAwareModelSerializer):
position = LinePositionField(read_only=True)
class Meta:
model = InvoiceLine
fields = ('description', 'gross_value', 'tax_value', 'tax_rate', 'tax_name')
fields = ('position', 'description', 'gross_value', 'tax_value', 'tax_rate', 'tax_name')
class InvoiceSerializer(I18nAwareModelSerializer):