source: main/waeup.ikoba/trunk/src/waeup/ikoba/customers/workflow.py @ 12158

Last change on this file since 12158 was 12151, checked in by Henrik Bettermann, 10 years ago

Catch InvalidTransitionError? in UI.
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File size: 8.1 KB
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1## $Id: workflow.py 12151 2014-12-05 15:43:24Z henrik $
2##
3## Copyright (C) 2014 Uli Fouquet & Henrik Bettermann
4## This program is free software; you can redistribute it and/or modify
5## it under the terms of the GNU General Public License as published by
6## the Free Software Foundation; either version 2 of the License, or
7## (at your option) any later version.
8##
9## This program is distributed in the hope that it will be useful,
10## but WITHOUT ANY WARRANTY; without even the implied warranty of
11## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12## GNU General Public License for more details.
13##
14## You should have received a copy of the GNU General Public License
15## along with this program; if not, write to the Free Software
16## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17##
18"""Workflow for customers.
19"""
20import grok
21from datetime import datetime
22from zope.component import getUtility
23from hurry.workflow.workflow import Transition, WorkflowState, NullCondition
24from hurry.workflow.interfaces import (
25    IWorkflowState, IWorkflowTransitionEvent, InvalidTransitionError)
26from waeup.ikoba.interfaces import (
27    IObjectHistory, IIkobaWorkflowInfo, IIkobaUtils,
28    STARTED, CREATED, REQUESTED, APPROVED,
29    SUBMITTED, VERIFIED, REJECTED, EXPIRED)
30from waeup.ikoba.interfaces import MessageFactory as _
31from waeup.ikoba.workflow import (
32    IkobaWorkflow, IkobaWorkflowInfo)
33from waeup.ikoba.customers.interfaces import (
34    ICustomer, ICustomersUtils,
35    IContract)
36from waeup.ikoba.utils.helpers import get_current_principal
37from waeup.ikoba.documents.workflow import VERIFICATION_TRANSITIONS
38
39# Customer workflow
40
41IMPORTABLE_REGISTRATION_STATES = (STARTED, REQUESTED, APPROVED)
42
43REGISTRATION_TRANSITIONS = (
44    Transition(
45        transition_id = 'create',
46        title = _('Create customer'),
47        source = None,
48        condition = NullCondition,
49        msg = _('Customer record created'),
50        destination = CREATED),
51
52    Transition(
53        transition_id = 'start',
54        title = _('Start registration'),
55        source = CREATED,
56        condition = NullCondition,
57        msg = _('Customer registration started'),
58        destination = STARTED),
59
60    Transition(
61        transition_id = 'request',
62        title = _('Request registration'),
63        msg = _('Customer registration requested'),
64        source = STARTED,
65        destination = REQUESTED),
66
67    Transition(
68        transition_id = 'approve',
69        title = _('Approve customer'),
70        msg = _('Customer registration approved'),
71        source = REQUESTED,
72        destination = APPROVED),
73
74    Transition(
75        transition_id = 'reject',
76        title = _('Reject customer'),
77        msg = _('Customer registration rejected'),
78        source = REQUESTED,
79        destination = STARTED),
80
81    Transition(
82        transition_id = 'reset1',
83        title = _('Reset customer'),
84        msg = _('Reset to initial customer state'),
85        source = APPROVED,
86        destination = STARTED),
87
88    Transition(
89        transition_id = 'reset2',
90        title = _('Reset to requested'),
91        msg = _("Reset to 'requested'"),
92        source = APPROVED,
93        destination = REQUESTED),
94
95    Transition(
96        transition_id = 'reset3',
97        title = _('Reset customer'),
98        msg = _("Reset to initial state"),
99        source = REQUESTED,
100        destination = STARTED),
101
102    )
103
104
105IMPORTABLE_REGISTRATION_TRANSITIONS = [i.transition_id for i in REGISTRATION_TRANSITIONS]
106
107registration_workflow = IkobaWorkflow(REGISTRATION_TRANSITIONS)
108
109
110class RegistrationWorkflowState(WorkflowState, grok.Adapter):
111    """An adapter to adapt Customer objects to workflow states.
112    """
113    grok.context(ICustomer)
114    grok.provides(IWorkflowState)
115
116    state_key = 'wf.registration.state'
117    state_id = 'wf.registration.id'
118
119
120class RegistrationWorkflowInfo(IkobaWorkflowInfo, grok.Adapter):
121    """Adapter to adapt Customer objects to workflow info objects.
122    """
123    grok.context(ICustomer)
124    grok.provides(IIkobaWorkflowInfo)
125
126    def __init__(self, context):
127        self.context = context
128        self.wf = registration_workflow
129
130
131@grok.subscribe(ICustomer, IWorkflowTransitionEvent)
132def handle_customer_transition_event(obj, event):
133    """Append message to customer history and log file when transition happened.
134    """
135
136    msg = event.transition.user_data['msg']
137    history = IObjectHistory(obj)
138    history.addMessage(msg)
139    try:
140        customers_container = grok.getSite()['customers']
141        customers_container.logger.info('%s - %s' % (obj.customer_id,msg))
142    except (TypeError, AttributeError):
143        pass
144    return
145
146# Contract workflow (the same as verification workflow)
147
148IMPORTABLE_CONTRACT_STATES = (CREATED, SUBMITTED, APPROVED, REJECTED, EXPIRED)
149
150CONTRACT_TRANSITIONS = (
151    Transition(
152        transition_id = 'create',
153        title = _('Create contract record'),
154        source = None,
155        condition = NullCondition,
156        msg = _('Contract record created'),
157        destination = CREATED),
158
159    Transition(
160        transition_id = 'submit',
161        title = _('Submit for approval'),
162        msg = _('Submitted for approval'),
163        source = CREATED,
164        destination = SUBMITTED),
165
166    Transition(
167        transition_id = 'approve',
168        title = _('Approve'),
169        msg = _('Approved'),
170        source = SUBMITTED,
171        destination = APPROVED),
172
173    Transition(
174        transition_id = 'reject',
175        title = _('Reject'),
176        msg = _('REJECTED'),
177        source = SUBMITTED,
178        destination = REJECTED),
179
180    Transition(
181        transition_id = 'reset1',
182        title = _('Reset to initial state'),
183        msg = _('Reset to initial state'),
184        source = REJECTED,
185        destination = CREATED),
186
187    Transition(
188        transition_id = 'reset2',
189        title = _('Reset to initial state'),
190        msg = _('Reset to initial state'),
191        source = APPROVED,
192        destination = CREATED),
193
194    Transition(
195        transition_id = 'reset3',
196        title = _('Reset to initial state'),
197        msg = _('Reset to initial state'),
198        source = SUBMITTED,
199        destination = CREATED),
200
201    Transition(
202        transition_id = 'expire',
203        title = _('Set to expired'),
204        msg = _('Set to expired'),
205        source = APPROVED,
206        destination = EXPIRED),
207
208    Transition(
209        transition_id = 'reset4',
210        title = _('Reset to initial state'),
211        msg = _('Reset to initial state'),
212        source = EXPIRED,
213        destination = CREATED),
214    )
215
216
217IMPORTABLE_CONTRACT_TRANSITIONS = [
218    i.transition_id for i in REGISTRATION_TRANSITIONS]
219
220contract_workflow = IkobaWorkflow(CONTRACT_TRANSITIONS)
221
222class ContractWorkflowState(WorkflowState, grok.Adapter):
223    """An adapter to adapt Contract objects to workflow states.
224    """
225    grok.context(IContract)
226    grok.provides(IWorkflowState)
227
228    state_key = 'wf.contract.state'
229    state_id = 'wf.contract.id'
230
231class ContractWorkflowInfo(IkobaWorkflowInfo, grok.Adapter):
232    """Adapter to adapt Contract objects to workflow info objects.
233    """
234    grok.context(IContract)
235    grok.provides(IIkobaWorkflowInfo)
236
237    def __init__(self, context):
238        self.context = context
239        self.wf = contract_workflow
240
241@grok.subscribe(IContract, IWorkflowTransitionEvent)
242def handle_contract_transition_event(obj, event):
243    """Append message to contract history and log file, also update
244    last_transition_date when transition happened.
245
246    Undo the approval of contract and raise an exception if contract
247    does not meet the requirements for approval.
248    """
249    if event.transition.destination == APPROVED:
250        if not obj.is_approvable:
251            # Undo transition and raise an exception.
252            IWorkflowState(obj).setState(event.transition.source)
253            raise InvalidTransitionError(
254                _("Attached documents must be verified first."))
255    msg = event.transition.user_data['msg']
256    history = IObjectHistory(obj)
257    history.addMessage(msg)
258    obj.last_transition_date = datetime.utcnow()
259    try:
260        customers_container = grok.getSite()['customers']
261        customers_container.logger.info('%s - %s' % (obj.customer_id,msg))
262    except (TypeError, AttributeError):
263        pass
264    return
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