from django.core.files.storage import FileSystemStorage
from django.db import models
from django.template import defaultfilters
-from taggit.managers import TaggableManager
+from lxml.html import fromstring, tostring
from oauth2client.client import Credentials
+from taggit.managers import TaggableManager
from karmaworld.apps.courses.models import Course
blank=True, null=True)
# Upload files to MEDIA_ROOT/notes/YEAR/MONTH/DAY, 2012/10/30/filename
+ # FIXME: because we are adding files by hand in tasks.py, upload_to is being ignored for media files
note_file = models.FileField(
storage=fs,
upload_to="notes/%Y/%m/%j/",
blank=True, null=True)
+ pdf_file = models.FileField(
+ storage=fs,
+ upload_to="notes/%Y/%m/%j/",
+ blank=True, null=True)
## post gdrive conversion data
embed_url = models.URLField(max_length=1024, blank=True, null=True)
# return a url ending in id
return u"/{0}/{1}/{2}".format(self.course.school.slug, self.course.slug, self.id)
+ def sanitize_html(self, save=True):
+ """ if self contains html, find all <a> tags and add target=_blank
+ takes self
+ returns True/False on succ/fail and error or count
+ """
+ # build a tag sanitizer
+ def add_attribute_target(tag):
+ tag.attrib['target'] = '_blank'
+
+ # if no html, return false
+ if not self.html:
+ return False, "Note has no html"
+
+ _html = fromstring(self.html)
+ a_tags = _html.findall('.//a') # recursively find all a tags in document tree
+ # if there are a tags
+ if a_tags > 1:
+ #apply the add attribute function
+ map(add_attribute_target, a_tags)
+ self.html = _html
+ if save:
+ self.save()
+ return True, len(a_tags)
+
+
class DriveAuth(models.Model):
""" stored google drive authentication and refresh token