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Diffstat (limited to 'util/journalpickler.py')
-rw-r--r-- | util/journalpickler.py | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/util/journalpickler.py b/util/journalpickler.py new file mode 100644 index 0000000..36f9311 --- /dev/null +++ b/util/journalpickler.py @@ -0,0 +1,47 @@ +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2 of the License, or +# (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA +# + +import pickle # TODO -> why does cPickle bitch about needing persistence.Jokebook etc ? + + +class JournalPickler: + '''Works with util.Persistence to persist objects to the Sugar Journal''' + + def __init__(self, obj = None): + pass + + def __set_dirty(self, obj, is_dirty): + obj.__dirty__ = False + for name, prop in obj.__properties__: + if prop.fget(obj).__class__ is list: + for item in prop.fget(obj): + if hasattr(item, '__dirty__'): + self.__set_dirty(item, is_dirty) + + + def dumps(self, obj, deep_dump): + self.__set_dirty(obj, False) + pickled = pickle.dumps(obj) + return pickled + + + def loads(self, pickled): + obj = pickle.loads(pickled) + self.__set_dirty(obj, False) + return obj + + +dumps = lambda obj, deep=False : JournalPickler(obj).dumps(obj, deep) +loads = JournalPickler().loads |