FileField, MapField, EmbeddedDocumentField)
try:
from mongoengine.base import ValidationError
except ImportError:
from mongoengine.errors import ValidationError
from mongoengine.queryset import OperationError, Q
from mongoengine.queryset.base import BaseQuerySet
from mongoengine.connection import get_db, DEFAULT_CONNECTION_NAME
from mongoengine.base import NON_FIELD_ERRORS as MONGO_NON_FIELD_ERRORS
from gridfs import GridFS
from mongodbforms.documentoptions import DocumentMetaWrapper
from mongodbforms.util import with_metaclass, load_field_generator
_fieldgenerator = load_field_generator()
def _get_unique_filename(name, db_alias=DEFAULT_CONNECTION_NAME,
collection_name='fs'):
fs = GridFS(get_db(db_alias), collection_name)
file_root, file_ext = os.path.splitext(get_valid_filename(name))
count = itertools.count(1)
while fs.exists(filename=name):
# file_ext includes the dot.
name = os.path.join("%s_%s%s" % (file_root, next(count), file_ext))
return name
def _save_iterator_file(field, instance, uploaded_file, file_data=None):
"""
from mongoadmin.widgets import ReferenceRawIdWidget, MultiReferenceRawIdWidget
# Defaults for formfield_overrides. ModelAdmin subclasses can change this
# by adding to ModelAdmin.formfield_overrides.
FORMFIELD_FOR_DBFIELD_DEFAULTS = {
DateTimeField: {
'form_class': forms.SplitDateTimeField,
'widget': widgets.AdminSplitDateTime
},
URLField: {'widget': widgets.AdminURLFieldWidget},
IntField: {'widget': widgets.AdminIntegerFieldWidget},
ImageField: {'widget': widgets.AdminFileWidget},
FileField: {'widget': widgets.AdminFileWidget},
}
_fieldgenerator = load_field_generator()()
def formfield(field, form_class=None, **kwargs):
"""
Returns a django.forms.Field instance for this database Field.
"""
defaults = {'required': field.required}
if field.default is not None:
if isinstance(field.default, collections.Callable):
defaults['initial'] = field.default()
defaults['show_hidden_initial'] = True
else:
defaults['initial'] = field.default
if field.choices is not None: