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Specific # attributions are listed in the accompanying credits file. # ############################################################################## __doc__='''short description $Id: Undo.py,v 1.14 1999/05/18 15:40:21 jim Exp $''' __version__='$Revision: 1.14 $'[11:-2] import Globals, ExtensionClass from DateTime import DateTime from string import atof, find, atoi, split, rfind class UndoSupport(ExtensionClass.Base): __ac_permissions__=( ('Undo changes', ( 'manage_undo_transactions', 'undoable_transactions', )), ('View management screens', ('manage_UndoForm',)), ) manage_UndoForm=Globals.HTMLFile( 'undo', globals(), PrincipiaUndoBatchSize=20, first_transaction=0, last_transaction=20) def get_request_var_or_attr(self, name, default): if hasattr(self, 'REQUEST'): REQUEST=self.REQUEST if REQUEST.has_key(name): return REQUEST[name] if hasattr(self, name): v=getattr(self, name) else: v=default REQUEST[name]=v return v else: if hasattr(self, name): v=getattr(self, name) else: v=default return v def undoable_transactions(self, AUTHENTICATION_PATH=None, first_transaction=None, last_transaction=None, PrincipiaUndoBatchSize=None): if AUTHENTICATION_PATH is None: path=self.REQUEST['AUTHENTICATION_PATH'] else: path=AUTHENTICATION_PATH if first_transaction is None: first_transaction=self.get_request_var_or_attr( 'first_transaction', 0) if PrincipiaUndoBatchSize is None: PrincipiaUndoBatchSize=self.get_request_var_or_attr( 'PrincipiaUndoBatchSize', 20) if last_transaction is None: last_transaction=self.get_request_var_or_attr( 'last_transaction', first_transaction+PrincipiaUndoBatchSize) db=self._p_jar.db try: r=db().undoLog(first_transaction, last_transaction) except: # BoboPOS2 r=[] add=r.append h=['',''] try: if Globals.Bobobase.has_key('_pack_time'): since=Globals.Bobobase['_pack_time'] else: since=0 trans_info=db.transaction_info( first_transaction,last_transaction,path,since=since) except: trans_info=[] for info in trans_info: while len(info) < 4: info.append('') t=info[1] l=find(t,' ') if l >= 0: t=t[l:] add( {'time': DateTime(atof(t)), 'id': "%s %s" % (info[1], info[0]), 'user_name': info[2], 'description': info[3], }) else: # ZODB 3 for d in r: d['time']=DateTime(d['time']) return r def manage_undo_transactions(self, transaction_info, REQUEST=None): """ """ jar=self._p_jar db=jar.db try: undo=db().undo except: # BoboPOS 2 for i in transaction_info: l=rfind(i,' ') oids=db.Toops( (i[:l],), atoi(i[l:])) jar.reload_oids(oids) else: # ZODB 3 for i in transaction_info: undo(i) if REQUEST is None: return REQUEST['RESPONSE'].redirect("%s/manage_main" % REQUEST['URL1']) return '' Globals.default__class_init__(UndoSupport)