Exemplo n.º 1
0
def course_filename_prefix_generator(course_id, separator='_'):
    """
    Generates a course-identifying unicode string for use in a file name.

    Args:
        course_id (object): A course identification object.
        separator (str): The character or chain of characters used for separating course details in
            the filename.
    Returns:
        str: A unicode string which can safely be inserted into a filename.
    """
    filename = str(separator).join([
        course_id.org,
        course_id.course,
        course_id.run
    ])

    enable_course_filename_ccx_suffix = settings.FEATURES.get(
        'ENABLE_COURSE_FILENAME_CCX_SUFFIX',
        False
    )

    if enable_course_filename_ccx_suffix and getattr(course_id, 'ccx', None):
        filename = separator.join([filename, 'ccx', course_id.ccx])

    return get_valid_filename(filename)
def course_filename_prefix_generator(course_id, separator='_'):
    """
    Generates a course-identifying unicode string for use in a file
    name.

    Args:
        course_id (object): A course identification object.
    Returns:
        str: A unicode string which can safely be inserted into a
            filename.
    """
    if isinstance(course_id, basestring):
        return get_valid_filename(course_id)
    else:
        return get_valid_filename(
            unicode(separator).join(
                [course_id.org, course_id.course, course_id.run]))
Exemplo n.º 3
0
def course_filename_prefix_generator(course_id, separator='_'):
    """
    Generates a course-identifying unicode string for use in a file
    name.

    Args:
        course_id (object): A course identification object.
    Returns:
        str: A unicode string which can safely be inserted into a
            filename.
    """
    return get_valid_filename(unicode(separator).join([course_id.org, course_id.course, course_id.run]))
Exemplo n.º 4
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 def save_archive(self,
                  course_id,
                  filename,
                  timestamp,
                  config_name='GRADES_DOWNLOAD'):
     report_store = ReportStore.from_config(config_name)
     zip_file_name = u"{filename}_{course}_{timestamp_str}.zip".format(
         filename=filename,
         course=get_valid_filename(
             unicode("_").join(
                 [course_id.org, course_id.course, course_id.run])),
         timestamp_str=timestamp.strftime("%Y-%m-%d-%H%M"))
     report_store.store(course_id, zip_file_name, self.archive.read())
Exemplo n.º 5
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 def save_csv(self,
              course_id,
              filename,
              cvs_file,
              timestamp,
              config_name='GRADES_DOWNLOAD'):
     report_store = ReportStore.from_config(config_name)
     csv_filename = u"{filename}_{course}_{timestamp_str}.csv".format(
         filename=filename,
         course=get_valid_filename(
             unicode("_").join(
                 [course_id.org, course_id.course, course_id.run])),
         timestamp_str=timestamp.strftime("%Y-%m-%d-%H%M"))
     report_store.store(course_id, csv_filename, cvs_file)
def course_and_time_based_filename_generator(course_id, base_name):
    """
    Generates a filename (without extension) based on the current time and the supplied filename.

    Args:
        course_id (object): A course identification object (must have org, course, and run).
        base_name (str): A name describing what type of file this is. Any characters that are not safe for
            filenames will be converted per django.core.files.storage.get_valid_filename (Specifically,
            leading and trailing spaces are removed; other  spaces are converted to underscores; and anything
            that is not a unicode alphanumeric, dash, underscore, or dot, is removed).

    Returns:
        str: a concatenation of the org, course and run from the input course_id, the input base_name,
            and the current time. Note that there will be no extension.

    """
    return u"{course_prefix}_{base_name}_{timestamp_str}".format(
        course_prefix=course_filename_prefix_generator(course_id),
        base_name=get_valid_filename(base_name),
        timestamp_str=datetime.now(UTC).strftime("%Y-%m-%d-%H%M%S"))
Exemplo n.º 7
0
def course_and_time_based_filename_generator(course_id, base_name):
    """
    Generates a filename (without extension) based on the current time and the supplied filename.

    Args:
        course_id (object): A course identification object (must have org, course, and run).
        base_name (str): A name describing what type of file this is. Any characters that are not safe for
            filenames will be converted per django.core.files.storage.get_valid_filename (Specifically,
            leading and trailing spaces are removed; other  spaces are converted to underscores; and anything
            that is not a unicode alphanumeric, dash, underscore, or dot, is removed).

    Returns:
        str: a concatenation of the org, course and run from the input course_id, the input base_name,
            and the current time. Note that there will be no extension.

    """
    return u"{course_prefix}_{base_name}_{timestamp_str}".format(
        course_prefix=course_filename_prefix_generator(course_id),
        base_name=get_valid_filename(base_name),
        timestamp_str=datetime.now(UTC).strftime("%Y-%m-%d-%H%M%S")
    )
Exemplo n.º 8
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 def save(self, file):
     thumbnail_size = (105, 105)
     path = os.path.join(MEDIA_ROOT, 'image_uploads')
     thumbnail_path = os.path.join(path, 'thumbnails')
     if not os.path.exists(path):
         os.mkdir(path)
     if not os.path.exists(thumbnail_path):
         os.mkdir(thumbnail_path)
     file_name = get_valid_filename(file.name)
     filepath = os.path.join(path, file_name)
     filepath = self.get_available_name(filepath)
     file_name = os.path.basename(filepath)
     destination = open(filepath, 'wb+')
     for chunk in file.chunks():
         destination.write(chunk)
     destination.close()
     try:
         im = Image.open(filepath)
         thumb = ImageOps.fit(im, thumbnail_size, Image.ANTIALIAS)
         thumb.save(os.path.join(thumbnail_path, "thumbnail_" + file_name), "PNG")
     except:
         pass
Exemplo n.º 9
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 def get_filename(self):
     name = os.path.split(os.path.splitext(self.filename)[0])[1]
     name = '{display_name}_{name}'.format(name=name,
                                           display_name=self.display_name)
     ext = os.path.splitext(self.file.name)[1]
     return get_valid_filename(name + ext)
Exemplo n.º 10
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def user_upload_path(instance, filename):
    return "users/{0}/{1}".format(instance.id,
                                  storage.get_valid_filename(filename))
Exemplo n.º 11
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 def get_valid_name(self, name):
     """
     Return a filename, based on the provided filename, that's suitable for
     use in the target storage system.
     """
     return get_valid_filename(name)