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Django DRF display field's verbose_name in error message

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1

When model field validation fail, I would like DRF to return the field verbose_name in the error message.

example :

models.py :

class MyClass(models.Model):
 myfield = model.CharField(max_length=20,
 verbose_name="This is the field",
 default="blabla")

serialiers.py :

class MyClassSerializer(serializers.ModelSerializer):
 class Meta:
 model = MyClass
 fields = ('myfield',)

If, POSTED data for this field is more than 20 characters, response payload is:

"myfield":["the error message..........."]

To make a friendlier message for the users (... and easily manage the errors :-) ) , I'd like to use the model field's verbose_name, so the response payload would be :

"This is the field":["the error message..........."]

Do you have any idea?
Thanks!

django django-rest-framework

share|improve this question

asked Mar 25 at 22:30

stockerskystockersky

54111 gold badge44 silver badges2222 bronze badges

add a comment | 

1

When model field validation fail, I would like DRF to return the field verbose_name in the error message.

example :

models.py :

class MyClass(models.Model):
 myfield = model.CharField(max_length=20,
 verbose_name="This is the field",
 default="blabla")

serialiers.py :

class MyClassSerializer(serializers.ModelSerializer):
 class Meta:
 model = MyClass
 fields = ('myfield',)

If, POSTED data for this field is more than 20 characters, response payload is:

"myfield":["the error message..........."]

To make a friendlier message for the users (... and easily manage the errors :-) ) , I'd like to use the model field's verbose_name, so the response payload would be :

"This is the field":["the error message..........."]

Do you have any idea?
Thanks!

django django-rest-framework

share|improve this question

asked Mar 25 at 22:30

stockerskystockersky

54111 gold badge44 silver badges2222 bronze badges

add a comment | 

When model field validation fail, I would like DRF to return the field verbose_name in the error message.

example :

models.py :

class MyClass(models.Model):
 myfield = model.CharField(max_length=20,
 verbose_name="This is the field",
 default="blabla")

serialiers.py :

class MyClassSerializer(serializers.ModelSerializer):
 class Meta:
 model = MyClass
 fields = ('myfield',)

If, POSTED data for this field is more than 20 characters, response payload is:

"myfield":["the error message..........."]

To make a friendlier message for the users (... and easily manage the errors :-) ) , I'd like to use the model field's verbose_name, so the response payload would be :

"This is the field":["the error message..........."]

Do you have any idea?
Thanks!

django django-rest-framework

share|improve this question

asked Mar 25 at 22:30

stockerskystockersky

54111 gold badge44 silver badges2222 bronze badges

class MyClass(models.Model):
 myfield = model.CharField(max_length=20,
 verbose_name="This is the field",
 default="blabla")

class MyClassSerializer(serializers.ModelSerializer):
 class Meta:
 model = MyClass
 fields = ('myfield',)

"myfield":["the error message..........."]

"This is the field":["the error message..........."]

share|improve this question

asked Mar 25 at 22:30

stockerskystockersky

54111 gold badge44 silver badges2222 bronze badges

share|improve this question

asked Mar 25 at 22:30

stockerskystockersky

54111 gold badge44 silver badges2222 bronze badges

asked Mar 25 at 22:30

stockerskystockersky

54111 gold badge44 silver badges2222 bronze badges

asked Mar 25 at 22:30

stockerskystockersky

54111 gold badge44 silver badges2222 bronze badges

1 Answer
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1

I dont think there is an easy way of doing this. The easiest way would be overriding errors property of serializer and changing error keys with verbose name.

class TestSerializer(serializers.ModelSerializer):
 class Meta:
 model = ...
 fields = ('field1', ...)

 @property
 def errors(self):
 # get errors
 errors = super().errors
 verbose_errors = 

 # fields = field.name: field.verbose_name for each field in model
 fields = field.name: field.verbose_name for field in
 self.Meta.model._meta.get_fields() if hasattr(field, 'verbose_name')

 # iterate over errors and replace error key with verbose name if exists
 for field_name, error in errors.items():
 if field_name in fields:
 verbose_errors[str(fields[field_name])] = error
 else:
 verbose_errors[field_name] = error
 return verbose_errors

share|improve this answer

answered Mar 26 at 0:07

zeynelzeynel

62033 silver badges1212 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your answer. Finally, as I use Vue.js on the frontend, I choose to use Vee Validate. This way, POSTED data is validated on the backend AND the browser. As invalid data isn't posted, this is even lighter for the backend API.
  
  – stockersky
  Mar 26 at 19:41
  
  

  
  
  
  

add a comment | 

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1

I dont think there is an easy way of doing this. The easiest way would be overriding errors property of serializer and changing error keys with verbose name.

class TestSerializer(serializers.ModelSerializer):
 class Meta:
 model = ...
 fields = ('field1', ...)

 @property
 def errors(self):
 # get errors
 errors = super().errors
 verbose_errors = 

 # fields = field.name: field.verbose_name for each field in model
 fields = field.name: field.verbose_name for field in
 self.Meta.model._meta.get_fields() if hasattr(field, 'verbose_name')

 # iterate over errors and replace error key with verbose name if exists
 for field_name, error in errors.items():
 if field_name in fields:
 verbose_errors[str(fields[field_name])] = error
 else:
 verbose_errors[field_name] = error
 return verbose_errors

share|improve this answer

answered Mar 26 at 0:07

zeynelzeynel

62033 silver badges1212 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your answer. Finally, as I use Vue.js on the frontend, I choose to use Vee Validate. This way, POSTED data is validated on the backend AND the browser. As invalid data isn't posted, this is even lighter for the backend API.
  
  – stockersky
  Mar 26 at 19:41
  
  

  
  
  
  

add a comment | 

1

I dont think there is an easy way of doing this. The easiest way would be overriding errors property of serializer and changing error keys with verbose name.

class TestSerializer(serializers.ModelSerializer):
 class Meta:
 model = ...
 fields = ('field1', ...)

 @property
 def errors(self):
 # get errors
 errors = super().errors
 verbose_errors = 

 # fields = field.name: field.verbose_name for each field in model
 fields = field.name: field.verbose_name for field in
 self.Meta.model._meta.get_fields() if hasattr(field, 'verbose_name')

 # iterate over errors and replace error key with verbose name if exists
 for field_name, error in errors.items():
 if field_name in fields:
 verbose_errors[str(fields[field_name])] = error
 else:
 verbose_errors[field_name] = error
 return verbose_errors

share|improve this answer

answered Mar 26 at 0:07

zeynelzeynel

62033 silver badges1212 bronze badges

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Thanks for your answer. Finally, as I use Vue.js on the frontend, I choose to use Vee Validate. This way, POSTED data is validated on the backend AND the browser. As invalid data isn't posted, this is even lighter for the backend API.
  
  – stockersky
  Mar 26 at 19:41
  
  

  
  
  
  

add a comment | 

I dont think there is an easy way of doing this. The easiest way would be overriding errors property of serializer and changing error keys with verbose name.

class TestSerializer(serializers.ModelSerializer):
 class Meta:
 model = ...
 fields = ('field1', ...)

 @property
 def errors(self):
 # get errors
 errors = super().errors
 verbose_errors = 

 # fields = field.name: field.verbose_name for each field in model
 fields = field.name: field.verbose_name for field in
 self.Meta.model._meta.get_fields() if hasattr(field, 'verbose_name')

 # iterate over errors and replace error key with verbose name if exists
 for field_name, error in errors.items():
 if field_name in fields:
 verbose_errors[str(fields[field_name])] = error
 else:
 verbose_errors[field_name] = error
 return verbose_errors

share|improve this answer

answered Mar 26 at 0:07

zeynelzeynel

62033 silver badges1212 bronze badges

class TestSerializer(serializers.ModelSerializer):
 class Meta:
 model = ...
 fields = ('field1', ...)

 @property
 def errors(self):
 # get errors
 errors = super().errors
 verbose_errors = 

 # fields = field.name: field.verbose_name for each field in model
 fields = field.name: field.verbose_name for field in
 self.Meta.model._meta.get_fields() if hasattr(field, 'verbose_name')

 # iterate over errors and replace error key with verbose name if exists
 for field_name, error in errors.items():
 if field_name in fields:
 verbose_errors[str(fields[field_name])] = error
 else:
 verbose_errors[field_name] = error
 return verbose_errors

share|improve this answer

answered Mar 26 at 0:07

zeynelzeynel

62033 silver badges1212 bronze badges

answered Mar 26 at 0:07

zeynelzeynel

62033 silver badges1212 bronze badges

answered Mar 26 at 0:07

zeynelzeynel

62033 silver badges1212 bronze badges