:py:mod:`oioioi.filetracker.fields`
===================================

.. py:module:: oioioi.filetracker.fields


Module Contents
---------------

Classes
~~~~~~~

.. autoapisummary::

   oioioi.filetracker.fields.FieldFile
   oioioi.filetracker.fields._FileDescriptor
   oioioi.filetracker.fields.FileField




.. py:class:: FieldFile(instance, field, name)

   Bases: :py:obj:`django.db.models.fields.files.FieldFile`

   A mixin class used to forward file methods to an underlaying file
   object.  The internal file object has to be called "file"::

       class FileProxy(FileProxyMixin):
           def __init__(self, file):
               self.file = file

   .. py:method:: read_using_cache()

      Opens a file using a cache (if it's possible)



.. py:class:: _FileDescriptor(field)

   Bases: :py:obj:`django.db.models.fields.files.FileDescriptor`

   The descriptor for the file attribute on the model instance. Return a
   FieldFile when accessed so you can write code like::

       >>> from myapp.models import MyModel
       >>> instance = MyModel.objects.get(pk=1)
       >>> instance.file.size

   Assign a file object on assignment so you can do::

       >>> with open('/path/to/hello.world') as f:
       ...     instance.file = File(f)

   .. py:method:: __get__(instance=None, owner=None)

      Retrieve and caches the value from the datastore on the first lookup.
      Return the cached value.



.. py:class:: FileField(*args, **kwargs)

   Bases: :py:obj:`django.db.models.fields.files.FileField`

   A :class:`~django.db.models.FileField` with fixtures support.

   Default value of max_length is increased from 100 to 255.

   Values of ``FileFields`` are serialized as::

     data:<filename>:<base64-encoded data>

   It is also possible to decode a more human-friendly representaion::

     data:<filename>:raw:<raw data>

   but this works only for ASCII content.

   .. py:attribute:: descriptor_class
      

      

   .. py:attribute:: attr_class
      

      

   .. py:method:: get_prep_value(value)

      Perform preliminary non-db specific value checks and conversions.


   .. py:method:: value_to_string(obj)

      Return a string value of this field from the passed obj.
      This is used by the serialization framework.