from mimetypes import guess_type
from pylons import c
from ming.orm import FieldProperty
from ming import schema as S
from allura.lib import helpers as h
from .session import project_orm_session
from .filesystem import File
class BaseAttachment(File):
thumbnail_size = (255, 255)
class __mongometa__:
name = 'attachment.files'
session = project_orm_session
indexes = ['metadata.filename']
# Override the metadata schema here
metadata=FieldProperty(dict(
artifact_id=S.ObjectId,
app_config_id=S.ObjectId,
type=str,
filename=str))
@property
def artifact(self):
raise NotImplementedError, 'artifact'
def url(self):
return self.artifact.url() + 'attachment/' + self.filename
def is_embedded(self):
from pylons import request
return self.metadata.filename in request.environ.get('allura.macro.att_embedded', [])
@classmethod
def metadata_for(cls, artifact):
return dict(
artifact_id=artifact._id,
app_config_id=artifact.app_config_id)
@classmethod
def save_attachment(cls, filename, fp, **kwargs):
content_type = kwargs.pop('content_type', None)
if content_type is None:
content_type = guess_type(filename)
if content_type[0]: content_type = content_type[0]
else: content_type = 'application/octet-stream'
thumbnail_meta = dict(type="thumbnail", app_config_id=c.app.config._id)
thumbnail_meta.update(kwargs)
original_meta = dict(type="attachment", app_config_id=c.app.config._id)
original_meta.update(kwargs)
orig, thumbnail = cls.save_image(
filename, fp, content_type=content_type,
square=True, thumbnail_size=cls.thumbnail_size,
thumbnail_meta=thumbnail_meta,
save_original=True,
original_meta=original_meta)
if orig is not None: return orig, thumbnail
with cls.create(
content_type=content_type,
filename=filename,
**original_meta) as fp_w:
fp_w.write(fp.read())
orig = cls.query.get(filename=fp_w.name)
return orig, None