validation error message

circle/dashboard/validators.py

@@ -24,6 +24,7 @@ import yaml
 
 from vm.models import Instance
 
+
 rng_file = "/usr/share/libvirt/schemas/domain.rng"
 
 # Mandatory xml elements dor parsing
@@ -57,14 +58,32 @@ def meta_data_validator(value):
     try:
         Instance.validate_meta_data(value)
     except yaml.YAMLError as exc:
-        raise ValidationError(exc.problem_mark)
+        if hasattr(exc, 'problem_mark'):
+            if exc.context != None:
+                raise ValidationError('  parser says\n' + str(exc.problem_mark) + '\n  ' +
+                    str(exc.problem) + ' ' + str(exc.context) +
+                    '\nPlease correct data and retry.')
+            else:
+                raise ValidationError('  parser says\n' + str(exc.problem_mark) + '\n  ' +
+                    str(exc.problem) + '\nPlease correct data and retry.')
+        else:
+            raise ValidationError("Something went wrong while parsing yaml file")
 
 
 def user_data_validator(value):
     try:
         Instance.validate_user_data(value)
     except yaml.YAMLError as exc:
-        raise ValidationError(exc.problem_mark)
+        if hasattr(exc, 'problem_mark'):
+            if exc.context != None:
+                raise ValidationError('  parser says\n' + str(exc.problem_mark) + '\n  ' +
+                    str(exc.problem) + ' ' + str(exc.context) +
+                    '\nPlease correct data and retry.')
+            else:
+                raise ValidationError('  parser says\n' + str(exc.problem_mark) + '\n  ' +
+                    str(exc.problem) + '\nPlease correct data and retry.')
+        else:
+            raise ValidationError("Something went wrong while parsing yaml file")
 
 
 def connect_command_template_validator(value):

circle/dashboard/views/vm.py

@@ -70,6 +70,7 @@ from ..forms import (
     VmRemoveInterfaceForm,
     VmRenameForm,
 )
+from django.views.generic.edit import FormMixin
 from request.models import TemplateAccessType, LeaseType
 from request.forms import LeaseRequestForm, TemplateRequestForm
 from ..models import Favourite