first version of BC validation schema
This commit is contained in:
Nicolas Perriault
parent
76d771d20f
commit
3d7b30da77
@ -4,7 +4,6 @@ from queryset import DO_NOTHING
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from mongoengine import signals
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import weakref
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import sys
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import pymongo
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import pymongo.objectid
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@ -19,9 +18,27 @@ class NotRegistered(Exception):
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class InvalidDocumentError(Exception):
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pass
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class ValidationError(Exception):
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pass
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class ValidationError(Exception):
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errors = {}
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field_name = None
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def __init__(self, message, **kwargs):
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self.field_name = kwargs.get('field_name')
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super(ValidationError, self).__init__(message)
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def __str__(self):
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return self.message
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def __repr__(self):
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return '%s(%s,)' % (self.__class__.__name__, self.message)
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def __getattribute__(self, name):
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message = super(ValidationError, self).__getattribute__(name)
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if name == 'message' and self.field_name:
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return message + ' ("%s")' % self.field_name
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else:
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return message
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_document_registry = {}
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@ -50,6 +67,8 @@ class BaseField(object):
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.. versionchanged:: 0.5 - added verbose and help text
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"""
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name = None
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# Fields may have _types inserted into indexes by default
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_index_with_types = True
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_geo_index = False
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@ -116,6 +135,14 @@ class BaseField(object):
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instance._data[self.name] = value
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instance._mark_as_changed(self.name)
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def error(self, message, errors=None, field_name=None):
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"""Raises a ValidationError.
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"""
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field_name = field_name if field_name else self.name
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error = ValidationError(message, field_name=field_name)
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error.errors = errors if errors else {}
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raise error
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def to_python(self, value):
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"""Convert a MongoDB-compatible type to a Python type.
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"""
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@ -141,15 +168,13 @@ class BaseField(object):
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if self.choices is not None:
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option_keys = [option_key for option_key, option_value in self.choices]
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if value not in option_keys:
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raise ValidationError('Value must be one of %s ("%s")' %
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(unicode(option_keys), self.name))
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self.error('Value must be one of %s' % unicode(option_keys))
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# check validation argument
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if self.validation is not None:
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if callable(self.validation):
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if not self.validation(value):
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raise ValidationError('Value does not match custom '
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'validation method ("%s")' % self.name)
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self.error('Value does not match custom validation method')
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else:
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raise ValueError('validation argument for "%s" must be a '
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'callable.' % self.name)
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@ -209,9 +234,8 @@ class ComplexBaseField(BaseField):
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if isinstance(v, Document):
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# We need the id from the saved object to create the DBRef
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if v.pk is None:
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raise ValidationError('You can only reference '
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'documents once they have been saved '
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'to the database ("%s")' % self.name)
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self.error('You can only reference documents once they'
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' have been saved to the database')
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collection = v._get_collection_name()
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value_dict[k] = pymongo.dbref.DBRef(collection, v.pk)
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elif hasattr(v, 'to_python'):
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@ -250,9 +274,8 @@ class ComplexBaseField(BaseField):
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if isinstance(v, Document):
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# We need the id from the saved object to create the DBRef
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if v.pk is None:
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raise ValidationError('You can only reference '
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'documents once they have been saved '
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'to the database ("%s")' % self.name)
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self.error('You can only reference documents once they'
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' have been saved to the database')
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# If its a document that is not inheritable it won't have
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# _types / _cls data so make it a generic reference allows
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@ -274,22 +297,29 @@ class ComplexBaseField(BaseField):
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return value_dict
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def validate(self, value):
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"""If field provided ensure the value is valid.
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"""If field is provided ensure the value is valid.
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"""
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errors = {}
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if self.field:
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try:
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if hasattr(value, 'iteritems'):
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[self.field.validate(v) for k,v in value.iteritems()]
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sequence = value.iteritems()
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else:
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[self.field.validate(v) for v in value]
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except Exception, err:
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raise ValidationError('Invalid %s item (%s) ("%s")' % (
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self.field.__class__.__name__, str(v), self.name))
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sequence = enumerate(value)
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for k, v in sequence:
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try:
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self.field.validate(v)
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except (ValidationError, AssertionError), error:
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if hasattr(error, 'errors'):
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errors[k] = error.errors
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else:
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errors[k] = error
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if errors:
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field_class = self.field.__class__.__name__
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self.error('Invalid %s item (%s)' % (field_class, value),
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errors=errors)
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# Don't allow empty values if required
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if self.required and not value:
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raise ValidationError('Field "%s" is required and cannot be empty' %
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self.name)
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self.error('Field is required and cannot be empty')
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def prepare_query_value(self, op, value):
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return self.to_mongo(value)
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@ -344,6 +374,7 @@ class BaseDynamicField(BaseField):
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def lookup_member(self, member_name):
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return member_name
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class ObjectIdField(BaseField):
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"""An field wrapper around MongoDB's ObjectIds.
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"""
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@ -357,7 +388,7 @@ class ObjectIdField(BaseField):
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return pymongo.objectid.ObjectId(unicode(value))
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except Exception, e:
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# e.message attribute has been deprecated since Python 2.6
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raise ValidationError(unicode(e))
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self.error(unicode(e))
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return value
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def prepare_query_value(self, op, value):
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@ -367,7 +398,7 @@ class ObjectIdField(BaseField):
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try:
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pymongo.objectid.ObjectId(unicode(value))
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except:
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raise ValidationError('Invalid Object ID ("%s")' % self.name)
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self.error('Invalid Object ID')
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class DocumentMetaclass(type):
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@ -665,7 +696,7 @@ class BaseDocument(object):
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signals.post_init.send(self.__class__, document=self)
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def __setattr__(self, name, value):
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# Handle dynamic data only if an intialised dynamic document
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# Handle dynamic data only if an initialised dynamic document
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if self._dynamic and getattr(self, '_initialised', False):
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field = None
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@ -708,7 +739,8 @@ class BaseDocument(object):
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data[k] = self.__expand_dynamic_values(key, v)
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if is_list: # Convert back to a list
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value = [v for k, v in sorted(data.items(), key=operator.itemgetter(0))]
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data_items = sorted(data.items(), key=operator.itemgetter(0))
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value = [v for k, v in data_items]
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else:
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value = data
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@ -729,15 +761,22 @@ class BaseDocument(object):
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for name, field in self._fields.items()]
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# Ensure that each field is matched to a valid value
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errors = {}
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for field, value in fields:
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if value is not None:
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try:
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field._validate(value)
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except (ValueError, AttributeError, AssertionError), e:
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raise ValidationError('Invalid value for field named "%s" of type "%s": %s'
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% (field.name, field.__class__.__name__, value))
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except ValidationError, error:
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errors[field.name] = error.errors or error
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except (ValueError, AttributeError, AssertionError), error:
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errors[field.name] = error
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elif field.required:
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raise ValidationError('Field "%s" is required' % field.name)
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errors[field.name] = ValidationError('Field is required',
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field_name=field.name)
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if errors:
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error = ValidationError('Errors encountered validating document')
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error.errors = errors
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raise error
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@apply
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def pk():
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@ -745,8 +784,10 @@ class BaseDocument(object):
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"""
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def fget(self):
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return getattr(self, self._meta['id_field'])
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def fset(self, value):
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return setattr(self, self._meta['id_field'], value)
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return property(fget, fset)
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def to_mongo(self):
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@ -821,7 +862,6 @@ class BaseDocument(object):
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""".strip() % class_name)
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cls = subclasses[class_name]
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present_fields = data.keys()
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for field_name, field in cls._fields.items():
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if field.db_field in data:
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value = data[field.db_field]
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@ -972,7 +1012,6 @@ class BaseDocument(object):
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return geo_indices
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def __getstate__(self):
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self_dict = self.__dict__
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removals = ["get_%s_display" % k for k, v in self._fields.items() if v.choices]
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for k in removals:
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if hasattr(self, k):
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@ -44,17 +44,13 @@ class StringField(BaseField):
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assert isinstance(value, (str, unicode))
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if self.max_length is not None and len(value) > self.max_length:
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raise ValidationError('String value is too long ("%s")' %
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self.name)
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self.error('String value is too long')
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if self.min_length is not None and len(value) < self.min_length:
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raise ValidationError('String value is too short ("%s")' %
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self.name)
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self.error('String value is too short')
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if self.regex is not None and self.regex.match(value) is None:
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message = 'String value did not match validation regex ("%s")' % \
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self.name
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raise ValidationError(message)
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self.error('String value did not match validation regex')
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def lookup_member(self, member_name):
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return None
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@ -111,11 +107,9 @@ class URLField(StringField):
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import urllib2
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try:
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request = urllib2.Request(value)
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response = urllib2.urlopen(request)
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urllib2.urlopen(request)
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except Exception, e:
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message = 'This URL appears to be a broken link: %s ("%s")' % (
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e, self.name)
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raise ValidationError(message)
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self.error('This URL appears to be a broken link: %s' % e)
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class EmailField(StringField):
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@ -132,8 +126,7 @@ class EmailField(StringField):
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def validate(self, value):
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if not EmailField.EMAIL_REGEX.match(value):
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raise ValidationError('Invalid Mail-address: %s ("%s")' % (value,
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self.name))
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self.error('Invalid Mail-address: %s' % value)
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class IntField(BaseField):
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@ -151,16 +144,13 @@ class IntField(BaseField):
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try:
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value = int(value)
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except:
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raise ValidationError('%s could not be converted to int ("%s")' % (
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value, self.name))
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raise self.error('%s could not be converted to int' % value)
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if self.min_value is not None and value < self.min_value:
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raise ValidationError('Integer value is too small ("%s")' %
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self.name)
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self.error('Integer value is too small')
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if self.max_value is not None and value > self.max_value:
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raise ValidationError('Integer value is too large ("%s")' %
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self.name)
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self.error('Integer value is too large')
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def prepare_query_value(self, op, value):
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return int(value)
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@ -183,12 +173,10 @@ class FloatField(BaseField):
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assert isinstance(value, float)
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if self.min_value is not None and value < self.min_value:
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raise ValidationError('Float value is too small ("%s")' %
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self.name)
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self.error('Float value is too small')
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if self.max_value is not None and value > self.max_value:
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raise ValidationError('Float value is too large ("%s")' %
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self.name)
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self.error('Float value is too large')
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def prepare_query_value(self, op, value):
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return float(value)
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@ -219,16 +207,13 @@ class DecimalField(BaseField):
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try:
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value = decimal.Decimal(value)
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except Exception, exc:
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raise ValidationError('Could not convert value to decimal: %s'
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'("%s")' % (exc, self.name))
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self.error('Could not convert value to decimal: %s' % exc)
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if self.min_value is not None and value < self.min_value:
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raise ValidationError('Decimal value is too small ("%s")' %
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self.name)
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self.error('Decimal value is too small')
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if self.max_value is not None and value > self.max_value:
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raise ValidationError('Decimal value is too large ("%s")' %
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self.name)
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self.error('Decimal value is too large')
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class BooleanField(BaseField):
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@ -375,8 +360,8 @@ class ComplexDateTimeField(StringField):
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def validate(self, value):
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if not isinstance(value, datetime.datetime):
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raise ValidationError('Only datetime objects may used in a '
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'ComplexDateTimeField ("%s")' % self.name)
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self.error('Only datetime objects may used in a '
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'ComplexDateTimeField')
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def to_python(self, value):
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return self._convert_from_string(value)
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@ -396,9 +381,8 @@ class EmbeddedDocumentField(BaseField):
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def __init__(self, document_type, **kwargs):
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if not isinstance(document_type, basestring):
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if not issubclass(document_type, EmbeddedDocument):
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raise ValidationError('Invalid embedded document class '
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'provided to an EmbeddedDocumentField '
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'("%s")' % self.name)
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self.error('Invalid embedded document class provided to an '
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'EmbeddedDocumentField')
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self.document_type_obj = document_type
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super(EmbeddedDocumentField, self).__init__(**kwargs)
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@ -427,9 +411,8 @@ class EmbeddedDocumentField(BaseField):
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"""
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# Using isinstance also works for subclasses of self.document
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if not isinstance(value, self.document_type):
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raise ValidationError('Invalid embedded document instance '
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'provided to an EmbeddedDocumentField '
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'("%s")' % self.name)
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self.error('Invalid embedded document instance provided to an '
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'EmbeddedDocumentField')
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self.document_type.validate(value)
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def lookup_member(self, member_name):
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@ -458,9 +441,8 @@ class GenericEmbeddedDocumentField(BaseField):
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def validate(self, value):
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if not isinstance(value, EmbeddedDocument):
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raise ValidationError('Invalid embedded document instance '
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'provided to an GenericEmbeddedDocumentField '
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'("%s")' % self.name)
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self.error('Invalid embedded document instance provided to an '
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'GenericEmbeddedDocumentField')
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value.validate()
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@ -495,8 +477,7 @@ class ListField(ComplexBaseField):
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"""
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if (not isinstance(value, (list, tuple)) or
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isinstance(value, basestring)):
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raise ValidationError('Only lists and tuples may be used in a '
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'list field ("%s")' % self.name)
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self.error('Only lists and tuples may be used in a list field')
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super(ListField, self).validate(value)
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def prepare_query_value(self, op, value):
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@ -552,13 +533,11 @@ class DictField(ComplexBaseField):
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"""Make sure that a list of valid fields is being used.
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"""
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if not isinstance(value, dict):
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raise ValidationError('Only dictionaries may be used in a '
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'DictField ("%s")' % self.name)
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self.error('Only dictionaries may be used in a DictField')
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if any(('.' in k or '$' in k) for k in value):
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raise ValidationError('Invalid dictionary key name - keys may not '
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'contain "." or "$" characters ("%s")' %
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self.name)
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self.error('Invalid dictionary key name - keys may not contain "."'
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' or "$" characters')
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super(DictField, self).validate(value)
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def lookup_member(self, member_name):
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@ -585,12 +564,11 @@ class MapField(DictField):
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def __init__(self, field=None, *args, **kwargs):
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if not isinstance(field, BaseField):
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raise ValidationError('Argument to MapField constructor must be '
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'a valid field')
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self.error('Argument to MapField constructor must be a valid '
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'field')
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super(MapField, self).__init__(field=field, *args, **kwargs)
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class ReferenceField(BaseField):
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"""A reference to a document that will be automatically dereferenced on
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access (lazily).
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@ -616,8 +594,8 @@ class ReferenceField(BaseField):
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"""
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if not isinstance(document_type, basestring):
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if not issubclass(document_type, (Document, basestring)):
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raise ValidationError('Argument to ReferenceField constructor '
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'must be a document class or a string')
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self.error('Argument to ReferenceField constructor must be a '
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'document class or a string')
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self.document_type_obj = document_type
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self.reverse_delete_rule = reverse_delete_rule
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super(ReferenceField, self).__init__(**kwargs)
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@ -656,8 +634,8 @@ class ReferenceField(BaseField):
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# We need the id from the saved object to create the DBRef
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id_ = document.id
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if id_ is None:
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raise ValidationError('You can only reference documents once '
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'they have been saved to the database')
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self.error('You can only reference documents once they have'
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' been saved to the database')
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else:
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id_ = document
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@ -672,10 +650,8 @@ class ReferenceField(BaseField):
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assert isinstance(value, (self.document_type, pymongo.dbref.DBRef))
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if isinstance(value, Document) and value.id is None:
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raise ValidationError('You can only reference documents once '
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'they have been saved to the database '
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'("%s")' % self.name)
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raise self.error('You can only reference documents once they have'
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' been saved to the database')
|
||||
|
||||
def lookup_member(self, member_name):
|
||||
return self.document_type._fields.get(member_name)
|
||||
@ -703,14 +679,12 @@ class GenericReferenceField(BaseField):
|
||||
|
||||
def validate(self, value):
|
||||
if not isinstance(value, (Document, pymongo.dbref.DBRef)):
|
||||
raise ValidationError('GenericReferences can only contain '
|
||||
'documents ("%s")' % self.name)
|
||||
raise 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:
|
||||
raise ValidationError('You can only reference documents once '
|
||||
'they have been saved to the database '
|
||||
'("%s")' % self.name)
|
||||
self.error('You can only reference documents once they have been'
|
||||
' saved to the database')
|
||||
|
||||
def dereference(self, value):
|
||||
doc_cls = get_document(value['_cls'])
|
||||
@ -731,9 +705,8 @@ class GenericReferenceField(BaseField):
|
||||
# We need the id from the saved object to create the DBRef
|
||||
id_ = document.id
|
||||
if id_ is None:
|
||||
raise ValidationError('You can only reference documents once '
|
||||
'they have been saved to the database '
|
||||
'("%s")' % self.name)
|
||||
self.error('You can only reference documents once they have'
|
||||
' been saved to the database')
|
||||
else:
|
||||
id_ = document
|
||||
|
||||
@ -765,8 +738,7 @@ class BinaryField(BaseField):
|
||||
assert isinstance(value, str)
|
||||
|
||||
if self.max_bytes is not None and len(value) > self.max_bytes:
|
||||
raise ValidationError('Binary value is too long ("%s")' %
|
||||
self.name)
|
||||
self.error('Binary value is too long')
|
||||
|
||||
|
||||
class GridFSError(Exception):
|
||||
@ -940,16 +912,14 @@ class GeoPointField(BaseField):
|
||||
"""Make sure that a geo-value is of type (x, y)
|
||||
"""
|
||||
if not isinstance(value, (list, tuple)):
|
||||
raise ValidationError('GeoPointField can only accept tuples or '
|
||||
'lists of (x, y) ("%s")' % self.name)
|
||||
self.error('GeoPointField can only accept tuples or lists '
|
||||
'of (x, y)')
|
||||
|
||||
if not len(value) == 2:
|
||||
raise ValidationError('Value must be a two-dimensional point '
|
||||
'("%s")' % self.name)
|
||||
raise self.error('Value must be a two-dimensional point')
|
||||
if (not isinstance(value[0], (float, int)) and
|
||||
not isinstance(value[1], (float, int))):
|
||||
raise ValidationError('Both values in point must be float or int '
|
||||
'("%s")' % self.name)
|
||||
self.error('Both values in point must be float or int')
|
||||
|
||||
|
||||
class SequenceField(IntField):
|
||||
@ -1036,4 +1006,4 @@ class UUIDField(BaseField):
|
||||
try:
|
||||
value = uuid.UUID(value)
|
||||
except Exception, exc:
|
||||
raise ValidationError('Could not convert to UUID: %s' % exc)
|
||||
self.error('Could not convert to UUID: %s' % exc)
|
||||
|
||||
@ -1112,7 +1112,6 @@ class FieldTest(unittest.TestCase):
|
||||
Post.drop_collection()
|
||||
User.drop_collection()
|
||||
|
||||
|
||||
def test_generic_reference_document_not_registered(self):
|
||||
"""Ensure dereferencing out of the document registry throws a
|
||||
`NotRegistered` error.
|
||||
@ -1139,7 +1138,7 @@ class FieldTest(unittest.TestCase):
|
||||
user = User.objects.first()
|
||||
try:
|
||||
user.bookmarks
|
||||
raise AssertionError, "Link was removed from the registry"
|
||||
raise AssertionError("Link was removed from the registry")
|
||||
except NotRegistered:
|
||||
pass
|
||||
|
||||
@ -1339,7 +1338,7 @@ class FieldTest(unittest.TestCase):
|
||||
# Make sure FileField is optional and not required
|
||||
class DemoFile(Document):
|
||||
file = FileField()
|
||||
d = DemoFile.objects.create()
|
||||
DemoFile.objects.create()
|
||||
|
||||
def test_file_uniqueness(self):
|
||||
"""Ensure that each instance of a FileField is unique
|
||||
@ -1538,7 +1537,6 @@ class FieldTest(unittest.TestCase):
|
||||
c = self.db['mongoengine.counters'].find_one({'_id': 'animal.id'})
|
||||
self.assertEqual(c['next'], 10)
|
||||
|
||||
|
||||
def test_generic_embedded_document(self):
|
||||
class Car(EmbeddedDocument):
|
||||
name = StringField()
|
||||
@ -1564,5 +1562,40 @@ class FieldTest(unittest.TestCase):
|
||||
person = Person.objects.first()
|
||||
self.assertTrue(isinstance(person.like, Dish))
|
||||
|
||||
def test_recursive_validation(self):
|
||||
"""Ensure that a validation result schema is available.
|
||||
"""
|
||||
class Author(EmbeddedDocument):
|
||||
name = StringField(required=True)
|
||||
|
||||
class Comment(EmbeddedDocument):
|
||||
author = EmbeddedDocumentField(Author, required=True)
|
||||
content = StringField(required=True)
|
||||
|
||||
class Post(Document):
|
||||
title = StringField(required=True)
|
||||
comments = ListField(EmbeddedDocumentField(Comment))
|
||||
|
||||
bob = Author(name='Bob')
|
||||
post = Post(title='hello world')
|
||||
post.comments.append(Comment(content='hello', author=bob))
|
||||
post.comments.append(Comment(author=bob))
|
||||
|
||||
try:
|
||||
post.validate()
|
||||
except ValidationError, error:
|
||||
pass
|
||||
|
||||
self.assertTrue(hasattr(error, 'errors'))
|
||||
self.assertTrue(isinstance(error.errors, dict))
|
||||
self.assertTrue('comments' in error.errors)
|
||||
self.assertTrue(1 in error.errors['comments'])
|
||||
self.assertTrue(isinstance(error.errors['comments'][1]['content'],
|
||||
ValidationError))
|
||||
|
||||
post.comments[1].content = 'here we go'
|
||||
post.validate()
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
unittest.main()
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user