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added a simple publishing states definition (publishing 'workflow')

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git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@2466 fd906abe-77d9-0310-91a1-e0d9ade77398
This commit is contained in:
helmutm 2008-03-21 13:26:58 +00:00
parent 872fccc529
commit ad30d6f655
2 changed files with 48 additions and 14 deletions
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22
stateful/README.txt
View file

@ -17,7 +17,7 @@ behaviour directly.
>>> demo = Demo()
The default states definition has the `started` state has its initial
The default states definition has the `started` state as its initial
state.
>>> demo.getState()
@ -34,21 +34,15 @@ We can now execute the `finish` Transition.
More complex states definitions
-------------------------------
>>> registerStatesDefinition(
... StatesDefinition('publishing',
... State('private', 'private', ('show',)),
... State('visible', 'visible', ('publish', 'hide',)),
... State('published', 'published', ('retract',)),
... Transition('show', 'show', 'visible'),
... Transition('hide', 'hide', 'private'),
... Transition('publish', 'publish', 'published'),
... Transition('retract', 'retract', 'visible'),
... initialState='visible'))
We'll use a predefined simple publishing workflow that.
>>> from cybertools.stateful.publishing import simplePublishing
>>> registerStatesDefinition(simplePublishing)
>>> demo = Demo()
>>> demo.statesDefinition = 'publishing'
>>> demo.getState()
'visible'
'draft'
If we try to execute a transition that is not an outgoing transition
of the current state we get an error.
@ -56,9 +50,9 @@ of the current state we get an error.
>>> demo.doTransition('retract')
Traceback (most recent call last):
...
ValueError: Transition 'retract' is not reachable from state 'visible'.
ValueError: Transition 'retract' is not reachable from state 'draft'.
>>> demo.getState()
'visible'
'draft'
Stateful Adapters

40
stateful/publishing.py Normal file
View file

@ -0,0 +1,40 @@
#
# Copyright (c) 2008 Helmut Merz helmutm@cy55.de
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
"""
Definition of a simple publishing workflow.
$Id$
"""
from zope.interface import implements
from cybertools.stateful.definition import registerStatesDefinition
from cybertools.stateful.definition import StatesDefinition
from cybertools.stateful.definition import State, Transition
simplePublishing = StatesDefinition('publishing',
State('private', 'private', ('show',)),
State('draft', 'draft', ('publish', 'hide',)),
State('published', 'published', ('retract',)),
Transition('show', 'show', 'draft'),
Transition('hide', 'hide', 'private'),
Transition('publish', 'publish', 'published'),
Transition('retract', 'retract', 'draft'),
initialState='draft')