[REM] workflow: Remove workflow engine, documentation and tests

5 files changed, 0 insertions, 631 deletions

diff --git a/odoo/workflow/__init__.py b/odoo/workflow/__init__.py
deleted file mode 100644
index 033b8347ad1..00000000000
--- a/odoo/workflow/__init__.py
+++ /dev/null
@@ -1,83 +0,0 @@
-# -*- coding: utf-8 -*-
-# Part of Odoo. See LICENSE file for full copyright and licensing details.
-
-from odoo.workflow.service import WorkflowService
-
-# The new API is in odoo.workflow.workflow_service
-# OLD API of the Workflow
-
-def clear_cache(cr, uid):
-    WorkflowService.clear_cache(cr.dbname)
-
-def trg_write(uid, res_type, res_id, cr):
-    """
-    Reevaluates the specified workflow instance. Thus if any condition for
-    a transition have been changed in the backend, then running ``trg_write``
-    will move the workflow over that transition.
-
-    :param res_type: the model name
-    :param res_id: the model instance id the workflow belongs to
-    :param cr: a database cursor
-    """
-    return WorkflowService.new(cr, uid, res_type, res_id).write()
-
-def trg_trigger(uid, res_type, res_id, cr):
-    """
-    Activate a trigger.
-
-    If a workflow instance is waiting for a trigger from another model, then this
-    trigger can be activated if its conditions are met.
-
-    :param res_type: the model name
-    :param res_id: the model instance id the workflow belongs to
-    :param cr: a database cursor
-    """
-    return WorkflowService.new(cr, uid, res_type, res_id).trigger()
-
-def trg_delete(uid, res_type, res_id, cr):
-    """
-    Delete a workflow instance
-
-    :param res_type: the model name
-    :param res_id: the model instance id the workflow belongs to
-    :param cr: a database cursor
-    """
-    return WorkflowService.new(cr, uid, res_type, res_id).delete()
-
-def trg_create(uid, res_type, res_id, cr):
-    """
-    Create a new workflow instance
-
-    :param res_type: the model name
-    :param res_id: the model instance id to own the created worfklow instance
-    :param cr: a database cursor
-    """
-    return WorkflowService.new(cr, uid, res_type, res_id).create()
-
-def trg_validate(uid, res_type, res_id, signal, cr):
-    """
-    Fire a signal on a given workflow instance
-
-    :param res_type: the model name
-    :param res_id: the model instance id the workflow belongs to
-    :signal: the signal name to be fired
-    :param cr: a database cursor
-    """
-    assert isinstance(signal, basestring)
-    return WorkflowService.new(cr, uid, res_type, res_id).validate(signal)
-
-def trg_redirect(uid, res_type, res_id, new_rid, cr):
-    """
-    Re-bind a workflow instance to another instance of the same model.
-
-    Make all workitems which are waiting for a (subflow) workflow instance
-    for the old resource point to the (first active) workflow instance for
-    the new resource.
-
-    :param res_type: the model name
-    :param res_id: the model instance id the workflow belongs to
-    :param new_rid: the model instance id to own the worfklow instance
-    :param cr: a database cursor
-    """
-    assert isinstance(new_rid, (long, int))
-    return WorkflowService.new(cr, uid, res_type, res_id).redirect(new_rid)
diff --git a/odoo/workflow/helpers.py b/odoo/workflow/helpers.py
deleted file mode 100644
index 669c2dbc443..00000000000
--- a/odoo/workflow/helpers.py
+++ /dev/null
@@ -1,21 +0,0 @@
-import odoo.sql_db
-
-class Session(object):
-    def __init__(self, cr, uid):
-        assert isinstance(cr, odoo.sql_db.Cursor)
-        assert isinstance(uid, (int, long))
-        self.cr = cr
-        self.uid = uid
-
-class Record(object):
-    def __init__(self, model, record_id):
-        assert isinstance(model, basestring)
-        assert isinstance(record_id, (int, long))
-        self.model = model
-        self.id = record_id
-
-class WorkflowActivity(object):
-    KIND_FUNCTION = 'function'
-    KIND_DUMMY = 'dummy'
-    KIND_STOPALL = 'stopall'
-    KIND_SUBFLOW = 'subflow'
diff --git a/odoo/workflow/instance.py b/odoo/workflow/instance.py
deleted file mode 100644
index 730ae9ccf52..00000000000
--- a/odoo/workflow/instance.py
+++ /dev/null
@@ -1,117 +0,0 @@
-# -*- coding: utf-8 -*-
-# Part of Odoo. See LICENSE file for full copyright and licensing details.
-import workitem
-from odoo.workflow.helpers import Session
-from odoo.workflow.helpers import Record
-from odoo.workflow.workitem import WorkflowItem
-
-class WorkflowInstance(object):
-    def __init__(self, session, record, values):
-        assert isinstance(session, Session)
-        assert isinstance(record, Record)
-        self.session = session
-        self.record = record
-
-        if not values:
-            values = {}
-
-        assert isinstance(values, dict)
-        self.instance = values
-
-    @classmethod
-    def create(cls, session, record, workflow_id):
-        assert isinstance(session, Session)
-        assert isinstance(record, Record)
-        assert isinstance(workflow_id, (int, long))
-
-        cr = session.cr
-        cr.execute('insert into wkf_instance (res_type,res_id,uid,wkf_id,state) values (%s,%s,%s,%s,%s) RETURNING id', (record.model, record.id, session.uid, workflow_id, 'active'))
-        instance_id = cr.fetchone()[0]
-
-        cr.execute('select * from wkf_activity where flow_start=True and wkf_id=%s', (workflow_id,))
-        stack = []
-
-        activities = cr.dictfetchall()
-        for activity in activities:
-            WorkflowItem.create(session, record, activity, instance_id, stack)
-
-        cr.execute('SELECT * FROM wkf_instance WHERE id = %s', (instance_id,))
-        values = cr.dictfetchone()
-        wi = WorkflowInstance(session, record, values)
-        wi.update()
-
-        return wi
-
-    def delete(self):
-        self.session.cr.execute('delete from wkf_instance where res_id=%s and res_type=%s', (self.record.id, self.record.model))
-
-    def validate(self, signal, force_running=False):
-        assert isinstance(signal, basestring)
-        assert isinstance(force_running, bool)
-
-        cr = self.session.cr
-        cr.execute("select * from wkf_workitem where inst_id=%s", (self.instance['id'],))
-        stack = []
-        for i, work_item_values in enumerate(cr.dictfetchall()):
-            if i > 0:
-                # test if previous workitem has already processed this one
-                cr.execute("select id from wkf_workitem where id=%s", (work_item_values['id'],))
-                if not cr.fetchone():
-                    continue
-            wi = WorkflowItem(self.session, self.record, work_item_values)
-            wi.process(signal=signal, force_running=force_running, stack=stack)
-            # An action is returned
-        self._update_end()
-        return stack and stack[0] or False
-
-    def update(self):
-        cr = self.session.cr
-
-        cr.execute("select * from wkf_workitem where inst_id=%s", (self.instance['id'],))
-        for work_item_values in cr.dictfetchall():
-            stack = []
-            WorkflowItem(self.session, self.record, work_item_values).process(stack=stack)
-        return self._update_end()
-
-    def _update_end(self):
-        cr = self.session.cr
-        instance_id = self.instance['id']
-        cr.execute('select wkf_id from wkf_instance where id=%s', (instance_id,))
-        wkf_id = cr.fetchone()[0]
-        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,))
-        ok=True
-        for r in cr.fetchall():
-            if (r[0]<>'complete') or not r[1]:
-                ok=False
-                break
-        if ok:
-            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,))
-            act_names = cr.fetchall()
-            cr.execute("update wkf_instance set state='complete' where id=%s", (instance_id,))
-            cr.execute("update wkf_workitem set state='complete' where subflow_id=%s", (instance_id,))
-            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,))
-            for cur_instance_id, cur_model_name, cur_record_id in cr.fetchall():
-                cur_record = Record(cur_model_name, cur_record_id)
-                for act_name in act_names:
-                    WorkflowInstance(self.session, cur_record, {'id':cur_instance_id}).validate('subflow.%s' % act_name[0])
-
-        return ok
-
-
-
-
-
-def create(session, record, workflow_id):
-    return WorkflowInstance(session, record).create(workflow_id)
-
-def delete(session, record):
-    return WorkflowInstance(session, record).delete()
-
-def validate(session, record, instance_id, signal, force_running=False):
-    return WorkflowInstance(session, record).validate(instance_id, signal, force_running)
-
-def update(session, record, instance_id):
-    return WorkflowInstance(session, record).update(instance_id)
-
-def _update_end(session, record, instance_id):
-    return WorkflowInstance(session, record)._update_end(instance_id)
diff --git a/odoo/workflow/service.py b/odoo/workflow/service.py
deleted file mode 100644
index 3aeca7b6a1a..00000000000
--- a/odoo/workflow/service.py
+++ /dev/null
@@ -1,96 +0,0 @@
-# -*- coding: utf-8 -*-
-# Part of Odoo. See LICENSE file for full copyright and licensing details.
-from helpers import Session
-from helpers import Record
-
-from odoo.workflow.instance import WorkflowInstance
-# import instance
-
-
-class WorkflowService(object):
-    CACHE = {}
-
-    @classmethod
-    def clear_cache(cls, dbname):
-        cls.CACHE[dbname] = {}
-
-    @classmethod
-    def new(cls, cr, uid, model_name, record_id):
-        return cls(Session(cr, uid), Record(model_name, record_id))
-
-    def __init__(self, session, record):
-        assert isinstance(session, Session)
-        assert isinstance(record, Record)
-
-        self.session = session
-        self.record = record
-
-        self.cr = self.session.cr
-
-    def write(self):
-        self.cr.execute('select id from wkf_instance where res_id=%s and res_type=%s and state=%s',
-            (self.record.id or None, self.record.model or None, 'active')
-        )
-        for (instance_id,) in self.cr.fetchall():
-            WorkflowInstance(self.session, self.record, {'id': instance_id}).update()
-
-    def trigger(self):
-        self.cr.execute('select instance_id from wkf_triggers where res_id=%s and model=%s', (self.record.id, self.record.model))
-        res = self.cr.fetchall()
-        for (instance_id,) in res:
-            self.cr.execute('select %s,res_type,res_id from wkf_instance where id=%s', (self.session.uid, instance_id,))
-            current_uid, current_model_name, current_record_id = self.cr.fetchone()
-
-            current_session = Session(self.session.cr, current_uid)
-            current_record = Record(current_model_name, current_record_id)
-
-            WorkflowInstance(current_session, current_record, {'id': instance_id}).update()
-
-    def delete(self):
-        WorkflowInstance(self.session, self.record, {}).delete()
-
-    def create(self):
-        WorkflowService.CACHE.setdefault(self.cr.dbname, {})
-
-        wkf_ids = WorkflowService.CACHE[self.cr.dbname].get(self.record.model, None)
-
-        if not wkf_ids:
-            self.cr.execute('select id from wkf where osv=%s and on_create=True', (self.record.model,))
-            wkf_ids = self.cr.fetchall()
-            WorkflowService.CACHE[self.cr.dbname][self.record.model] = wkf_ids
-
-        for (wkf_id, ) in wkf_ids:
-            WorkflowInstance.create(self.session, self.record, wkf_id)
-
-    def validate(self, signal):
-        result = False
-        # ids of all active workflow instances for a corresponding resource (id, model_nam)
-        self.cr.execute('select id from wkf_instance where res_id=%s and res_type=%s and state=%s', (self.record.id, self.record.model, 'active'))
-        # TODO: Refactor the workflow instance object
-        for (instance_id,) in self.cr.fetchall():
-            wi = WorkflowInstance(self.session, self.record, {'id': instance_id})
-
-            res2 = wi.validate(signal)
-
-            result = result or res2
-        return result
-
-    def redirect(self, new_rid):
-        # get ids of wkf instances for the old resource (res_id)
-        # CHECKME: shouldn't we get only active instances?
-        self.cr.execute('select id, wkf_id from wkf_instance where res_id=%s and res_type=%s', (self.record.id, self.record.model))
-
-        for old_inst_id, workflow_id in self.cr.fetchall():
-            # first active instance for new resource (new_rid), using same wkf
-            self.cr.execute(
-                'SELECT id '\
-                'FROM wkf_instance '\
-                'WHERE res_id=%s AND res_type=%s AND wkf_id=%s AND state=%s',
-                (new_rid, self.record.model, workflow_id, 'active'))
-            new_id = self.cr.fetchone()
-            if new_id:
-                # select all workitems which "wait" for the old instance
-                self.cr.execute('select id from wkf_workitem where subflow_id=%s', (old_inst_id,))
-                for (item_id,) in self.cr.fetchall():
-                    # redirect all those workitems to the wkf instance of the new resource
-                    self.cr.execute('update wkf_workitem set subflow_id=%s where id=%s', (new_id[0], item_id))
diff --git a/odoo/workflow/workitem.py b/odoo/workflow/workitem.py
deleted file mode 100644
index cfa07bc8b5d..00000000000
--- a/odoo/workflow/workitem.py
+++ /dev/null
@@ -1,314 +0,0 @@
-
-# Part of Odoo. See LICENSE file for full copyright and licensing details.
-
-#
-# TODO:
-# cr.execute('delete from wkf_triggers where model=%s and res_id=%s', (res_type,res_id))
-#
-import logging
-import instance
-
-from odoo.workflow.helpers import Session
-from odoo.workflow.helpers import Record
-from odoo.workflow.helpers import WorkflowActivity
-
-logger = logging.getLogger(__name__)
-
-import odoo
-from odoo.tools.safe_eval import safe_eval
-
-class Environment(dict):
-    """
-    Dictionary class used as an environment to evaluate workflow code (such as
-    the condition on transitions).
-
-    This environment provides sybmols for cr, uid, id, model name, model
-    instance, column names, and all the record (the one obtained by browsing
-    the provided ID) attributes.
-    """
-    def __init__(self, session, record):
-        self.cr = session.cr
-        self.uid = session.uid
-        self.model = record.model
-        self.id = record.id
-        self.ids = [record.id]
-
-    def __getitem__(self, key):
-        env = odoo.api.Environment(self.cr, self.uid, {})
-        records = env[self.model].browse(self.ids)
-        if hasattr(records, key):
-            return getattr(records, key)
-        else:
-            return super(Environment, self).__getitem__(key)
-
-
-class WorkflowItem(object):
-    def __init__(self, session, record, work_item_values):
-        assert isinstance(session, Session)
-        assert isinstance(record, Record)
-        self.session = session
-        self.record = record
-
-        if not work_item_values:
-            work_item_values = {}
-
-        assert isinstance(work_item_values, dict)
-        self.workitem = work_item_values
-
-    @classmethod
-    def create(cls, session, record, activity, instance_id, stack):
-        assert isinstance(session, Session)
-        assert isinstance(record, Record)
-        assert isinstance(activity, dict)
-        assert isinstance(instance_id, (long, int))
-        assert isinstance(stack, list)
-
-        cr = session.cr
-        cr.execute("select nextval('wkf_workitem_id_seq')")
-        id_new = cr.fetchone()[0]
-        cr.execute("insert into wkf_workitem (id,act_id,inst_id,state) values (%s,%s,%s,'active')", (id_new, activity['id'], instance_id))
-        cr.execute('select * from wkf_workitem where id=%s',(id_new,))
-        work_item_values = cr.dictfetchone()
-        logger.info('Created workflow item in activity %s',
-                    activity['id'],
-                    extra={'ident': (session.uid, record.model, record.id)})
-
-        workflow_item = WorkflowItem(session, record, work_item_values)
-        workflow_item.process(stack=stack)
-
-    @classmethod
-    def create_all(cls, session, record, activities, instance_id, stack):
-        assert isinstance(activities, list)
-
-        for activity in activities:
-            cls.create(session, record, activity, instance_id, stack)
-
-    def process(self, signal=None, force_running=False, stack=None):
-        assert isinstance(force_running, bool)
-        assert stack is not None
-
-        cr = self.session.cr
-
-        cr.execute('select * from wkf_activity where id=%s', (self.workitem['act_id'],))
-        activity = cr.dictfetchone()
-
-        triggers = False
-        if self.workitem['state'] == 'active':
-            triggers = True
-            if not self._execute(activity, stack):
-                return False
-
-        if force_running or self.workitem['state'] == 'complete':
-            ok = self._split_test(activity['split_mode'], signal, stack)
-            triggers = triggers and not ok
-
-        if triggers:
-            cr.execute('select * from wkf_transition where act_from=%s ORDER BY sequence,id', (self.workitem['act_id'],))
-            for trans in cr.dictfetchall():
-                if trans['trigger_model']:
-                    ids = self.wkf_expr_eval_expr(trans['trigger_expr_id'])
-                    for res_id in ids:
-                        cr.execute('select nextval(\'wkf_triggers_id_seq\')')
-                        id =cr.fetchone()[0]
-                        cr.execute('insert into wkf_triggers (model,res_id,instance_id,workitem_id,id) values (%s,%s,%s,%s,%s)', (trans['trigger_model'],res_id, self.workitem['inst_id'], self.workitem['id'], id))
-
-        return True
-
-    def _execute(self, activity, stack):
-        """Send a signal to parenrt workflow (signal: subflow.signal_name)"""
-        result = True
-        cr = self.session.cr
-        signal_todo = []
-
-        if (self.workitem['state']=='active') and activity['signal_send']:
-            # signal_send']:
-            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)", (self.workitem['inst_id'],))
-            for instance_id, model_name, record_id in cr.fetchall():
-                record = Record(model_name, record_id)
-                signal_todo.append((instance_id, record, activity['signal_send']))
-
-
-        if activity['kind'] == WorkflowActivity.KIND_DUMMY:
-            if self.workitem['state']=='active':
-                self._state_set(activity, 'complete')
-                if activity['action_id']:
-                    res2 = self.wkf_expr_execute_action(activity)
-                    if res2:
-                        stack.append(res2)
-                        result=res2
-
-        elif activity['kind'] == WorkflowActivity.KIND_FUNCTION:
-
-            if self.workitem['state']=='active':
-                self._state_set(activity, 'running')
-                returned_action = self.wkf_expr_execute(activity)
-                if type(returned_action) in (dict,):
-                    stack.append(returned_action)
-                if activity['action_id']:
-                    res2 = self.wkf_expr_execute_action(activity)
-                    # A client action has been returned
-                    if res2:
-                        stack.append(res2)
-                        result=res2
-                self._state_set(activity, 'complete')
-
-        elif activity['kind'] == WorkflowActivity.KIND_STOPALL:
-            if self.workitem['state']=='active':
-                self._state_set(activity, 'running')
-                cr.execute('delete from wkf_workitem where inst_id=%s and id<>%s', (self.workitem['inst_id'], self.workitem['id']))
-                if activity['action']:
-                    self.wkf_expr_execute(activity)
-                self._state_set(activity, 'complete')
-
-        elif activity['kind'] == WorkflowActivity.KIND_SUBFLOW:
-
-            if self.workitem['state']=='active':
-
-                self._state_set(activity, 'running')
-                if activity.get('action', False):
-                    id_new = self.wkf_expr_execute(activity)
-                    if not id_new:
-                        cr.execute('delete from wkf_workitem where id=%s', (self.workitem['id'],))
-                        return False
-                    assert type(id_new)==type(1) or type(id_new)==type(1L), 'Wrong return value: '+str(id_new)+' '+str(type(id_new))
-                    cr.execute('select id from wkf_instance where res_id=%s and wkf_id=%s', (id_new, activity['subflow_id']))
-                    id_new = cr.fetchone()[0]
-                else:
-                    inst = instance.WorkflowInstance(self.session, self.record)
-                    id_new = inst.create(activity['subflow_id'])
-
-                cr.execute('update wkf_workitem set subflow_id=%s where id=%s', (id_new, self.workitem['id']))
-                self.workitem['subflow_id'] = id_new
-
-            if self.workitem['state']=='running':
-                cr.execute("select state from wkf_instance where id=%s", (self.workitem['subflow_id'],))
-                state = cr.fetchone()[0]
-                if state=='complete':
-                    self._state_set(activity, 'complete')
-
-        for instance_id, record, signal_send in signal_todo:
-            wi = instance.WorkflowInstance(self.session, record, {'id': instance_id})
-            wi.validate(signal_send, force_running=True)
-
-        return result
-
-    def _state_set(self, activity, state):
-        self.session.cr.execute('update wkf_workitem set state=%s where id=%s', (state, self.workitem['id']))
-        self.workitem['state'] = state
-        logger.info('Changed state of work item %s to "%s" in activity %s',
-                    self.workitem['id'], state, activity['id'],
-                    extra={'ident': (self.session.uid, self.record.model, self.record.id)})
-
-    def _split_test(self, split_mode, signal, stack):
-        cr = self.session.cr
-        cr.execute('select * from wkf_transition where act_from=%s ORDER BY sequence,id', (self.workitem['act_id'],))
-        test = False
-        transitions = []
-        alltrans = cr.dictfetchall()
-
-        if split_mode in ('XOR', 'OR'):
-            for transition in alltrans:
-                if self.wkf_expr_check(transition,signal):
-                    test = True
-                    transitions.append((transition['id'], self.workitem['inst_id']))
-                    if split_mode=='XOR':
-                        break
-        else:
-            test = True
-            for transition in alltrans:
-                if not self.wkf_expr_check(transition, signal):
-                    test = False
-                    break
-                cr.execute('select count(*) from wkf_witm_trans where trans_id=%s and inst_id=%s', (transition['id'], self.workitem['inst_id']))
-                if not cr.fetchone()[0]:
-                    transitions.append((transition['id'], self.workitem['inst_id']))
-
-        if test and transitions:
-            cr.executemany('insert into wkf_witm_trans (trans_id,inst_id) values (%s,%s)', transitions)
-            cr.execute('delete from wkf_workitem where id=%s', (self.workitem['id'],))
-            for t in transitions:
-                self._join_test(t[0], t[1], stack)
-            return True
-        return False
-
-    def _join_test(self, trans_id, inst_id, stack):
-        cr = self.session.cr
-        cr.execute('select * from wkf_activity where id=(select act_to from wkf_transition where id=%s)', (trans_id,))
-        activity = cr.dictfetchone()
-        if activity['join_mode']=='XOR':
-            WorkflowItem.create(self.session, self.record, activity, inst_id, stack=stack)
-            cr.execute('delete from wkf_witm_trans where inst_id=%s and trans_id=%s', (inst_id,trans_id))
-        else:
-            cr.execute('select id from wkf_transition where act_to=%s ORDER BY sequence,id', (activity['id'],))
-            trans_ids = cr.fetchall()
-            ok = True
-            for (id,) in trans_ids:
-                cr.execute('select count(*) from wkf_witm_trans where trans_id=%s and inst_id=%s', (id,inst_id))
-                res = cr.fetchone()[0]
-                if not res:
-                    ok = False
-                    break
-            if ok:
-                for (id,) in trans_ids:
-                    cr.execute('delete from wkf_witm_trans where trans_id=%s and inst_id=%s', (id,inst_id))
-                WorkflowItem.create(self.session, self.record, activity, inst_id, stack=stack)
-
-    def wkf_expr_eval_expr(self, lines):
-        """
-        Evaluate each line of ``lines`` with the ``Environment`` environment, returning
-        the value of the last line.
-        """
-        assert lines, 'You used a NULL action in a workflow, use dummy node instead.'
-        result = False
-        for line in lines.split('\n'):
-            line = line.strip()
-            if not line:
-                continue
-            if line == 'True':
-                result = True
-            elif line == 'False':
-                result = False
-            else:
-                env = Environment(self.session, self.record)
-                result = safe_eval(line, env, nocopy=True)
-        return result
-
-    def wkf_expr_execute_action(self, activity):
-        """
-        Evaluate the ir.actions.server action specified in the activity.
-        """
-        context = {
-            'active_model': self.record.model,
-            'active_id': self.record.id,
-            'active_ids': [self.record.id]
-        }
-        env = odoo.api.Environment(self.session.cr, self.session.uid, context)
-        action = env['ir.actions.server'].browse(activity['action_id'])
-        result = action.run()
-        return result
-
-    def wkf_expr_execute(self, activity):
-        """
-        Evaluate the action specified in the activity.
-        """
-        return self.wkf_expr_eval_expr(activity['action'])
-
-    def wkf_expr_check(self, transition, signal):
-        """
-        Test if a transition can be taken. The transition can be taken if:
-
-        - the signal name matches,
-        - the uid is SUPERUSER_ID or the user groups contains the transition's
-          group,
-        - the condition evaluates to a truish value.
-        """
-        if transition['signal'] and signal != transition['signal']:
-            return False
-
-        if self.session.uid != odoo.SUPERUSER_ID and transition['group_id']:
-            env = odoo.api.Environment(self.session.cr, self.session.uid, {})
-            user_groups = env.user.groups_id
-            if transition['group_id'] not in user_groups.ids:
-                return False
-
-        return self.wkf_expr_eval_expr(transition['condition'])