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got rid of assert for validation; ValidationError now extends AssertionError for BC purpose

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This commit is contained in:
Nicolas Perriault 2011-10-25 22:38:43 +02:00
parent b8e2bdc99f
commit a1db437c42
2 changed files with 28 additions and 20 deletions
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11
mongoengine/base.py
View File

@ -19,13 +19,13 @@ class InvalidDocumentError(Exception):
pass
class ValidationError(Exception):
class ValidationError(AssertionError):
"""Validation exception.
"""
errors = {}
field_name = None
def __init__(self, message, **kwargs):
def __init__(self, message="", **kwargs):
self.errors = kwargs.get('errors', {})
self.field_name = kwargs.get('field_name')
super(ValidationError, self).__init__(message)
@ -157,7 +157,7 @@ class BaseField(object):
instance._data[self.name] = value
instance._mark_as_changed(self.name)
def error(self, message, errors=None, field_name=None):
def error(self, message="", errors=None, field_name=None):
"""Raises a ValidationError.
"""
field_name = field_name if field_name else self.name
@ -794,9 +794,8 @@ class BaseDocument(object):
errors[field.name] = ValidationError('Field is required',
field_name=field.name)
if errors:
error = ValidationError('Errors encountered validating document')
error.errors = errors
raise error
raise ValidationError('Errors encountered validating document',
errors=errors)
@apply
def pk():

37
mongoengine/fields.py
View File

@ -41,7 +41,8 @@ class StringField(BaseField):
return unicode(value)
def validate(self, value):
assert isinstance(value, (str, unicode))
if not isinstance(value, (str, unicode)):
self.error('StringField only accepts string values')
if self.max_length is not None and len(value) > self.max_length:
self.error('String value is too long')
@ -143,7 +144,7 @@ class IntField(BaseField):
try:
value = int(value)
except:
raise self.error('%s could not be converted to int' % value)
self.error('%s could not be converted to int' % value)
if self.min_value is not None and value < self.min_value:
self.error('Integer value is too small')
@ -169,7 +170,8 @@ class FloatField(BaseField):
def validate(self, value):
if isinstance(value, int):
value = float(value)
assert isinstance(value, float)
if not isinstance(value, float):
self.error('FoatField only accepts float values')
if self.min_value is not None and value < self.min_value:
self.error('Float value is too small')
@ -225,7 +227,8 @@ class BooleanField(BaseField):
return bool(value)
def validate(self, value):
assert isinstance(value, bool)
if not isinstance(value, bool):
self.error('BooleanField only accepts boolean values')
class DateTimeField(BaseField):
@ -238,7 +241,8 @@ class DateTimeField(BaseField):
"""
def validate(self, value):
assert isinstance(value, (datetime.datetime, datetime.date))
if not isinstance(value, (datetime.datetime, datetime.date)):
self.error(u'cannot parse date "%s"' % value)
def to_mongo(self, value):
return self.prepare_query_value(None, value)
@ -524,7 +528,8 @@ class DictField(ComplexBaseField):
def __init__(self, basecls=None, field=None, *args, **kwargs):
self.field = field
self.basecls = basecls or BaseField
assert issubclass(self.basecls, BaseField)
if not issubclass(self.basecls, BaseField):
self.error('DictField only accepts dict values')
kwargs.setdefault('default', lambda: {})
super(DictField, self).__init__(*args, **kwargs)
@ -646,11 +651,12 @@ class ReferenceField(BaseField):
return self.to_mongo(value)
def validate(self, value):
assert isinstance(value, (self.document_type, pymongo.dbref.DBRef))
if not isinstance(value, (self.document_type, pymongo.dbref.DBRef)):
self.error('A ReferenceField only accepts DBRef')
if isinstance(value, Document) and value.id is None:
raise self.error('You can only reference documents once they have'
' been saved to the database')
self.error('You can only reference documents once they have been '
'saved to the database')
def lookup_member(self, member_name):
return self.document_type._fields.get(member_name)
@ -678,7 +684,7 @@ class GenericReferenceField(BaseField):
def validate(self, value):
if not isinstance(value, (Document, pymongo.dbref.DBRef)):
raise self.error('GenericReferences can only contain documents')
self.error('GenericReferences can only contain documents')
# We need the id from the saved object to create the DBRef
if isinstance(value, Document) and value.id is None:
@ -734,7 +740,8 @@ class BinaryField(BaseField):
return str(value)
def validate(self, value):
assert isinstance(value, str)
if not isinstance(value, str):
self.error('BinaryField only accepts string values')
if self.max_bytes is not None and len(value) > self.max_bytes:
self.error('Binary value is too long')
@ -895,8 +902,10 @@ class FileField(BaseField):
def validate(self, value):
if value.grid_id is not None:
assert isinstance(value, GridFSProxy)
assert isinstance(value.grid_id, pymongo.objectid.ObjectId)
if not isinstance(value, GridFSProxy):
self.error('FileField only accepts GridFSProxy values')
if not isinstance(value.grid_id, pymongo.objectid.ObjectId):
self.error('Invalid GridFSProxy value')
class GeoPointField(BaseField):
@ -915,7 +924,7 @@ class GeoPointField(BaseField):
'of (x, y)')
if not len(value) == 2:
raise self.error('Value must be a two-dimensional point')
self.error('Value must be a two-dimensional point')
if (not isinstance(value[0], (float, int)) and
not isinstance(value[1], (float, int))):
self.error('Both values in point must be float or int')