Django Rest Framework custom error messages












0














I am trying to add custom field error messages for SlugRelated field as follows:



class Test(serializers.ModelSerializers):
team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
error_messages={"does_not_exist": "Team not found"})


Works as expected. My query is how do I pass the team name dynamically in the error message. I tried the following but it did not work:



class Test(serializers.ModelSerializers):
team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
error_messages={"does_not_exist": f"Team {team} not found"})









share|improve this question



























    0














    I am trying to add custom field error messages for SlugRelated field as follows:



    class Test(serializers.ModelSerializers):
    team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
    error_messages={"does_not_exist": "Team not found"})


    Works as expected. My query is how do I pass the team name dynamically in the error message. I tried the following but it did not work:



    class Test(serializers.ModelSerializers):
    team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
    error_messages={"does_not_exist": f"Team {team} not found"})









    share|improve this question

























      0












      0








      0







      I am trying to add custom field error messages for SlugRelated field as follows:



      class Test(serializers.ModelSerializers):
      team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
      error_messages={"does_not_exist": "Team not found"})


      Works as expected. My query is how do I pass the team name dynamically in the error message. I tried the following but it did not work:



      class Test(serializers.ModelSerializers):
      team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
      error_messages={"does_not_exist": f"Team {team} not found"})









      share|improve this question













      I am trying to add custom field error messages for SlugRelated field as follows:



      class Test(serializers.ModelSerializers):
      team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
      error_messages={"does_not_exist": "Team not found"})


      Works as expected. My query is how do I pass the team name dynamically in the error message. I tried the following but it did not work:



      class Test(serializers.ModelSerializers):
      team = serializers.SlugRelatedField(queryset=Team.objects.all(), slug_field='name',
      error_messages={"does_not_exist": f"Team {team} not found"})






      python django django-rest-framework






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      share|improve this question











      share|improve this question




      share|improve this question










      asked Nov 23 '18 at 7:00









      Amistad

      2,57062438




      2,57062438
























          1 Answer
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          oldest

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          1














          The default error message for does_not_exist take slug_name & value as the keyword argument to format the error string.



          Solution is to replace team with value.



          Solution:



          class Test(serializers.ModelSerializers):
          team = serializers.SlugRelatedField(
          queryset=Team.objects.all(),
          slug_field='name',
          error_messages={"does_not_exist": "Team {value} not found"}
          )


          Ref: relations:SlugRelatedField Source Code






          share|improve this answer























          • That does not work...it gives an error saying value not defined..
            – Amistad
            Nov 23 '18 at 10:31










          • Right. Forgot to convert it back to regular string from f-string. Updating the answer.
            – Sachin Kukreja
            Nov 23 '18 at 10:34










          • Perfect..that works..
            – Amistad
            Nov 23 '18 at 10:47











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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          1














          The default error message for does_not_exist take slug_name & value as the keyword argument to format the error string.



          Solution is to replace team with value.



          Solution:



          class Test(serializers.ModelSerializers):
          team = serializers.SlugRelatedField(
          queryset=Team.objects.all(),
          slug_field='name',
          error_messages={"does_not_exist": "Team {value} not found"}
          )


          Ref: relations:SlugRelatedField Source Code






          share|improve this answer























          • That does not work...it gives an error saying value not defined..
            – Amistad
            Nov 23 '18 at 10:31










          • Right. Forgot to convert it back to regular string from f-string. Updating the answer.
            – Sachin Kukreja
            Nov 23 '18 at 10:34










          • Perfect..that works..
            – Amistad
            Nov 23 '18 at 10:47
















          1














          The default error message for does_not_exist take slug_name & value as the keyword argument to format the error string.



          Solution is to replace team with value.



          Solution:



          class Test(serializers.ModelSerializers):
          team = serializers.SlugRelatedField(
          queryset=Team.objects.all(),
          slug_field='name',
          error_messages={"does_not_exist": "Team {value} not found"}
          )


          Ref: relations:SlugRelatedField Source Code






          share|improve this answer























          • That does not work...it gives an error saying value not defined..
            – Amistad
            Nov 23 '18 at 10:31










          • Right. Forgot to convert it back to regular string from f-string. Updating the answer.
            – Sachin Kukreja
            Nov 23 '18 at 10:34










          • Perfect..that works..
            – Amistad
            Nov 23 '18 at 10:47














          1












          1








          1






          The default error message for does_not_exist take slug_name & value as the keyword argument to format the error string.



          Solution is to replace team with value.



          Solution:



          class Test(serializers.ModelSerializers):
          team = serializers.SlugRelatedField(
          queryset=Team.objects.all(),
          slug_field='name',
          error_messages={"does_not_exist": "Team {value} not found"}
          )


          Ref: relations:SlugRelatedField Source Code






          share|improve this answer














          The default error message for does_not_exist take slug_name & value as the keyword argument to format the error string.



          Solution is to replace team with value.



          Solution:



          class Test(serializers.ModelSerializers):
          team = serializers.SlugRelatedField(
          queryset=Team.objects.all(),
          slug_field='name',
          error_messages={"does_not_exist": "Team {value} not found"}
          )


          Ref: relations:SlugRelatedField Source Code







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited Nov 23 '18 at 10:35

























          answered Nov 23 '18 at 8:26









          Sachin Kukreja

          2,0451716




          2,0451716












          • That does not work...it gives an error saying value not defined..
            – Amistad
            Nov 23 '18 at 10:31










          • Right. Forgot to convert it back to regular string from f-string. Updating the answer.
            – Sachin Kukreja
            Nov 23 '18 at 10:34










          • Perfect..that works..
            – Amistad
            Nov 23 '18 at 10:47


















          • That does not work...it gives an error saying value not defined..
            – Amistad
            Nov 23 '18 at 10:31










          • Right. Forgot to convert it back to regular string from f-string. Updating the answer.
            – Sachin Kukreja
            Nov 23 '18 at 10:34










          • Perfect..that works..
            – Amistad
            Nov 23 '18 at 10:47
















          That does not work...it gives an error saying value not defined..
          – Amistad
          Nov 23 '18 at 10:31




          That does not work...it gives an error saying value not defined..
          – Amistad
          Nov 23 '18 at 10:31












          Right. Forgot to convert it back to regular string from f-string. Updating the answer.
          – Sachin Kukreja
          Nov 23 '18 at 10:34




          Right. Forgot to convert it back to regular string from f-string. Updating the answer.
          – Sachin Kukreja
          Nov 23 '18 at 10:34












          Perfect..that works..
          – Amistad
          Nov 23 '18 at 10:47




          Perfect..that works..
          – Amistad
          Nov 23 '18 at 10:47


















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