113 lines
5.1 KiB
Python
113 lines
5.1 KiB
Python
##############################################################################
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#
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# Copyright (c) 2004-2008 Tiny SPRL (http://tiny.be) All Rights Reserved.
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#
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# $Id$
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#
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# WARNING: This program as such is intended to be used by professional
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# programmers who take the whole responsability of assessing all potential
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# consequences resulting from its eventual inadequacies and bugs
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# End users who are looking for a ready-to-use solution with commercial
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# garantees and support are strongly adviced to contract a Free Software
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# Service Company
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#
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# This program is Free Software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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###############################################################################
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import wkf_logs
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import workitem
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import instance
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import netsvc
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import pooler
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class workflow_service(netsvc.Service):
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def __init__(self, name='workflow', audience='*'):
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netsvc.Service.__init__(self, name, audience)
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self.exportMethod(self.trg_write)
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self.exportMethod(self.trg_delete)
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self.exportMethod(self.trg_create)
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self.exportMethod(self.trg_validate)
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self.exportMethod(self.trg_redirect)
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self.exportMethod(self.trg_trigger)
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self.exportMethod(self.clear_cache)
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self.wkf_on_create_cache={}
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def clear_cache(self, cr, uid):
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self.wkf_on_create_cache[cr.dbname]={}
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def trg_write(self, uid, res_type, res_id, cr):
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ident = (uid,res_type,res_id)
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cr.execute('select id from wkf_instance where res_id=%d and res_type=%s and state=%s', (res_id,res_type, 'active'))
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for (id,) in cr.fetchall():
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instance.update(cr, id, ident)
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def trg_trigger(self, uid, res_type, res_id, cr):
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cr.execute('select instance_id from wkf_triggers where res_id=%d and model=%s', (res_id,res_type))
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res = cr.fetchall()
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for (instance_id,) in res:
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cr.execute('select uid,res_type,res_id from wkf_instance where id=%d', (instance_id,))
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ident = cr.fetchone()
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instance.update(cr, instance_id, ident)
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def trg_delete(self, uid, res_type, res_id, cr):
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ident = (uid,res_type,res_id)
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instance.delete(cr, ident)
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def trg_create(self, uid, res_type, res_id, cr):
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ident = (uid,res_type,res_id)
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self.wkf_on_create_cache.setdefault(cr.dbname, {})
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if res_type in self.wkf_on_create_cache[cr.dbname]:
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wkf_ids = self.wkf_on_create_cache[cr.dbname][res_type]
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else:
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cr.execute('select id from wkf where osv=%s and on_create=True', (res_type,))
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wkf_ids = cr.fetchall()
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self.wkf_on_create_cache[cr.dbname][res_type] = wkf_ids
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for (wkf_id,) in wkf_ids:
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instance.create(cr, ident, wkf_id)
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def trg_validate(self, uid, res_type, res_id, signal, cr):
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result = False
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ident = (uid,res_type,res_id)
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# ids of all active workflow instances for a corresponding resource (id, model_nam)
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cr.execute('select id from wkf_instance where res_id=%d and res_type=%s and state=%s', (res_id, res_type, 'active'))
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for (id,) in cr.fetchall():
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res2 = instance.validate(cr, id, ident, signal)
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result = result or res2
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return result
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# make all workitems which are waiting for a (subflow) workflow instance
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# for the old resource point to the (first active) workflow instance for
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# the new resource
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def trg_redirect(self, uid, res_type, res_id, new_rid, cr):
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# get ids of wkf instances for the old resource (res_id)
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#CHECKME: shouldn't we get only active instances?
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cr.execute('select id, wkf_id from wkf_instance where res_id=%d and res_type=%s', (res_id, res_type))
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for old_inst_id, wkf_id in cr.fetchall():
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# first active instance for new resource (new_rid), using same wkf
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cr.execute(
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'SELECT id '\
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'FROM wkf_instance '\
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'WHERE res_id=%d AND res_type=%s AND wkf_id=%d AND state=%s',
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(new_rid, res_type, wkf_id, 'active'))
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new_id = cr.fetchone()
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if new_id:
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# select all workitems which "wait" for the old instance
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cr.execute('select id from wkf_workitem where subflow_id=%d', (old_inst_id,))
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for (item_id,) in cr.fetchall():
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# redirect all those workitems to the wkf instance of the new resource
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cr.execute('update wkf_workitem set subflow_id=%d where id=%d', (new_id[0], item_id))
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workflow_service()
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