Django rest framework pass field errors in the extra_kwargs dictionary












1















I am customizing the does_not_exist error message for a SlugField in my serializer as follows:



class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name',
error_messages={"does_not_exist": "Custom"})
enabled = serializers.BooleanField()

class Meta:
model = Policy
fields = ['id', 'name', 'source_ip_group', 'enabled']


This works as expected.However, when I try to add this in the Meta attribute of the class, it does not work.



class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name')
enabled = serializers.BooleanField()

class Meta:
model = Policy
fields = ['id', 'name', 'source_ip_group', 'enabled']
extra_kwargs = {'source_ip_group': {"error_messages": {"does_not_exist": "Custom"}}}


What am I doing wrong ?










share|improve this question



























    1















    I am customizing the does_not_exist error message for a SlugField in my serializer as follows:



    class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
    source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name',
    error_messages={"does_not_exist": "Custom"})
    enabled = serializers.BooleanField()

    class Meta:
    model = Policy
    fields = ['id', 'name', 'source_ip_group', 'enabled']


    This works as expected.However, when I try to add this in the Meta attribute of the class, it does not work.



    class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
    source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name')
    enabled = serializers.BooleanField()

    class Meta:
    model = Policy
    fields = ['id', 'name', 'source_ip_group', 'enabled']
    extra_kwargs = {'source_ip_group': {"error_messages": {"does_not_exist": "Custom"}}}


    What am I doing wrong ?










    share|improve this question

























      1












      1








      1








      I am customizing the does_not_exist error message for a SlugField in my serializer as follows:



      class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
      source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name',
      error_messages={"does_not_exist": "Custom"})
      enabled = serializers.BooleanField()

      class Meta:
      model = Policy
      fields = ['id', 'name', 'source_ip_group', 'enabled']


      This works as expected.However, when I try to add this in the Meta attribute of the class, it does not work.



      class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
      source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name')
      enabled = serializers.BooleanField()

      class Meta:
      model = Policy
      fields = ['id', 'name', 'source_ip_group', 'enabled']
      extra_kwargs = {'source_ip_group': {"error_messages": {"does_not_exist": "Custom"}}}


      What am I doing wrong ?










      share|improve this question














      I am customizing the does_not_exist error message for a SlugField in my serializer as follows:



      class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
      source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name',
      error_messages={"does_not_exist": "Custom"})
      enabled = serializers.BooleanField()

      class Meta:
      model = Policy
      fields = ['id', 'name', 'source_ip_group', 'enabled']


      This works as expected.However, when I try to add this in the Meta attribute of the class, it does not work.



      class PolicyCreateUpdateSerializer(serializers.ModelSerializer):
      source_ip_group = serializers.SlugRelatedField(queryset=IPGroup.objects.all(), slug_field='name')
      enabled = serializers.BooleanField()

      class Meta:
      model = Policy
      fields = ['id', 'name', 'source_ip_group', 'enabled']
      extra_kwargs = {'source_ip_group': {"error_messages": {"does_not_exist": "Custom"}}}


      What am I doing wrong ?







      python django django-rest-framework






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 23 '18 at 6:35









      AmistadAmistad

      2,64272538




      2,64272538
























          1 Answer
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          Mentioning the field explicitly will be used and will ignore any extra_kwargs for the field.



          Ref: Serializer fields initialization






          share|improve this answer
























          • so there is no way that I can pass the extra_kwargs ?

            – Amistad
            Nov 23 '18 at 10:27











          • I think the logic is there to ignore extra_kwargs when declared field is used is because if you are declaring the field yourself, then you can mention all the things you require to override, while extra_kwargs are there to override a piece of the field, not the whole thing.

            – Sachin Kukreja
            Nov 23 '18 at 10:29











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          1 Answer
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          1 Answer
          1






          active

          oldest

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          active

          oldest

          votes






          active

          oldest

          votes









          2














          Mentioning the field explicitly will be used and will ignore any extra_kwargs for the field.



          Ref: Serializer fields initialization






          share|improve this answer
























          • so there is no way that I can pass the extra_kwargs ?

            – Amistad
            Nov 23 '18 at 10:27











          • I think the logic is there to ignore extra_kwargs when declared field is used is because if you are declaring the field yourself, then you can mention all the things you require to override, while extra_kwargs are there to override a piece of the field, not the whole thing.

            – Sachin Kukreja
            Nov 23 '18 at 10:29
















          2














          Mentioning the field explicitly will be used and will ignore any extra_kwargs for the field.



          Ref: Serializer fields initialization






          share|improve this answer
























          • so there is no way that I can pass the extra_kwargs ?

            – Amistad
            Nov 23 '18 at 10:27











          • I think the logic is there to ignore extra_kwargs when declared field is used is because if you are declaring the field yourself, then you can mention all the things you require to override, while extra_kwargs are there to override a piece of the field, not the whole thing.

            – Sachin Kukreja
            Nov 23 '18 at 10:29














          2












          2








          2







          Mentioning the field explicitly will be used and will ignore any extra_kwargs for the field.



          Ref: Serializer fields initialization






          share|improve this answer













          Mentioning the field explicitly will be used and will ignore any extra_kwargs for the field.



          Ref: Serializer fields initialization







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Nov 23 '18 at 8:35









          Sachin KukrejaSachin Kukreja

          2,0451716




          2,0451716













          • so there is no way that I can pass the extra_kwargs ?

            – Amistad
            Nov 23 '18 at 10:27











          • I think the logic is there to ignore extra_kwargs when declared field is used is because if you are declaring the field yourself, then you can mention all the things you require to override, while extra_kwargs are there to override a piece of the field, not the whole thing.

            – Sachin Kukreja
            Nov 23 '18 at 10:29



















          • so there is no way that I can pass the extra_kwargs ?

            – Amistad
            Nov 23 '18 at 10:27











          • I think the logic is there to ignore extra_kwargs when declared field is used is because if you are declaring the field yourself, then you can mention all the things you require to override, while extra_kwargs are there to override a piece of the field, not the whole thing.

            – Sachin Kukreja
            Nov 23 '18 at 10:29

















          so there is no way that I can pass the extra_kwargs ?

          – Amistad
          Nov 23 '18 at 10:27





          so there is no way that I can pass the extra_kwargs ?

          – Amistad
          Nov 23 '18 at 10:27













          I think the logic is there to ignore extra_kwargs when declared field is used is because if you are declaring the field yourself, then you can mention all the things you require to override, while extra_kwargs are there to override a piece of the field, not the whole thing.

          – Sachin Kukreja
          Nov 23 '18 at 10:29





          I think the logic is there to ignore extra_kwargs when declared field is used is because if you are declaring the field yourself, then you can mention all the things you require to override, while extra_kwargs are there to override a piece of the field, not the whole thing.

          – Sachin Kukreja
          Nov 23 '18 at 10:29




















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