140 lines
5.7 KiB
Python
140 lines
5.7 KiB
Python
# -*- coding: utf-8 -*-
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##############################################################################
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#
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# OpenERP, Open Source Management Solution
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# Copyright (C) 2004-2014 Tiny SPRL (<http://tiny.be>).
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# 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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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##############################################################################
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import workitem
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from openerp.workflow.helpers import Session
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from openerp.workflow.helpers import Record
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from openerp.workflow.workitem import WorkflowItem
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class WorkflowInstance(object):
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def __init__(self, session, record, values):
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assert isinstance(session, Session)
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assert isinstance(record, Record)
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self.session = session
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self.record = record
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if not values:
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values = {}
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assert isinstance(values, dict)
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self.instance = values
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@classmethod
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def create(cls, session, record, workflow_id):
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assert isinstance(session, Session)
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assert isinstance(record, Record)
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assert isinstance(workflow_id, (int, long))
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cr = session.cr
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cr.execute('insert into wkf_instance (res_type,res_id,uid,wkf_id) values (%s,%s,%s,%s) RETURNING id', (record.model, record.id, session.uid, workflow_id))
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instance_id = cr.fetchone()[0]
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cr.execute('select * from wkf_activity where flow_start=True and wkf_id=%s', (workflow_id,))
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stack = []
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activities = cr.dictfetchall()
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for activity in activities:
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WorkflowItem.create(session, record, activity, instance_id, stack)
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cr.execute('SELECT * FROM wkf_instance WHERE id = %s', (instance_id,))
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values = cr.dictfetchone()
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wi = WorkflowInstance(session, record, values)
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wi.update()
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return wi
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def delete(self):
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self.session.cr.execute('delete from wkf_instance where res_id=%s and res_type=%s', (self.record.id, self.record.model))
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def validate(self, signal, force_running=False):
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assert isinstance(signal, basestring)
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assert isinstance(force_running, bool)
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cr = self.session.cr
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cr.execute("select * from wkf_workitem where inst_id=%s", (self.instance['id'],))
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stack = []
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for i, work_item_values in enumerate(cr.dictfetchall()):
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if i > 0:
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# test if previous workitem has already processed this one
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cr.execute("select id from wkf_workitem where id=%s", (work_item_values['id'],))
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if not cr.fetchone():
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continue
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wi = WorkflowItem(self.session, self.record, work_item_values)
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wi.process(signal=signal, force_running=force_running, stack=stack)
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# An action is returned
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self._update_end()
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return stack and stack[0] or False
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def update(self):
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cr = self.session.cr
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cr.execute("select * from wkf_workitem where inst_id=%s", (self.instance['id'],))
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for work_item_values in cr.dictfetchall():
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stack = []
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WorkflowItem(self.session, self.record, work_item_values).process(stack=stack)
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return self._update_end()
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def _update_end(self):
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cr = self.session.cr
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instance_id = self.instance['id']
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cr.execute('select wkf_id from wkf_instance where id=%s', (instance_id,))
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wkf_id = cr.fetchone()[0]
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cr.execute('select state,flow_stop from wkf_workitem w left join wkf_activity a on (a.id=w.act_id) where w.inst_id=%s', (instance_id,))
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ok=True
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for r in cr.fetchall():
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if (r[0]<>'complete') or not r[1]:
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ok=False
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break
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if ok:
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cr.execute('select distinct a.name from wkf_activity a left join wkf_workitem w on (a.id=w.act_id) where w.inst_id=%s', (instance_id,))
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act_names = cr.fetchall()
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cr.execute("update wkf_instance set state='complete' where id=%s", (instance_id,))
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cr.execute("update wkf_workitem set state='complete' where subflow_id=%s", (instance_id,))
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cr.execute("select i.id,w.osv,i.res_id from wkf_instance i left join wkf w on (i.wkf_id=w.id) where i.id IN (select inst_id from wkf_workitem where subflow_id=%s)", (instance_id,))
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for cur_instance_id, cur_model_name, cur_record_id in cr.fetchall():
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cur_record = Record(cur_model_name, cur_record_id)
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for act_name in act_names:
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WorkflowInstance(self.session, cur_record, {'id':cur_instance_id}).validate('subflow.%s' % act_name[0])
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return ok
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def create(session, record, workflow_id):
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return WorkflowInstance(session, record).create(workflow_id)
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def delete(session, record):
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return WorkflowInstance(session, record).delete()
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def validate(session, record, instance_id, signal, force_running=False):
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return WorkflowInstance(session, record).validate(instance_id, signal, force_running)
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def update(session, record, instance_id):
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return WorkflowInstance(session, record).update(instance_id)
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def _update_end(session, record, instance_id):
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return WorkflowInstance(session, record)._update_end(instance_id)
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# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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