| 1 | """Workflow for students. |
|---|
| 2 | """ |
|---|
| 3 | import grok |
|---|
| 4 | from datetime import datetime |
|---|
| 5 | from zope.component import getUtility |
|---|
| 6 | from hurry.workflow.workflow import Transition, WorkflowState, NullCondition |
|---|
| 7 | from hurry.workflow.interfaces import IWorkflowState, IWorkflowTransitionEvent |
|---|
| 8 | from waeup.kofa.interfaces import ( |
|---|
| 9 | IObjectHistory, IKofaWorkflowInfo, IKofaUtils, |
|---|
| 10 | CREATED, ADMITTED, CLEARANCE, REQUESTED, CLEARED, PAID, RETURNING, |
|---|
| 11 | REGISTERED, VALIDATED) |
|---|
| 12 | from waeup.kofa.interfaces import MessageFactory as _ |
|---|
| 13 | from waeup.kofa.workflow import KofaWorkflow, KofaWorkflowInfo |
|---|
| 14 | from waeup.kofa.students.interfaces import IStudent, IStudentsUtils |
|---|
| 15 | from waeup.kofa.utils.helpers import get_current_principal |
|---|
| 16 | |
|---|
| 17 | |
|---|
| 18 | IMPORTABLE_STATES = (ADMITTED, CLEARANCE, REQUESTED, CLEARED, PAID, RETURNING, |
|---|
| 19 | REGISTERED, VALIDATED) |
|---|
| 20 | |
|---|
| 21 | FORBIDDEN_POSTGRAD_STATES = (RETURNING, REGISTERED, VALIDATED) |
|---|
| 22 | |
|---|
| 23 | REGISTRATION_TRANSITIONS = ( |
|---|
| 24 | Transition( |
|---|
| 25 | transition_id = 'create', |
|---|
| 26 | title = _('Create student'), |
|---|
| 27 | source = None, |
|---|
| 28 | condition = NullCondition, |
|---|
| 29 | msg = _('Record created'), |
|---|
| 30 | destination = CREATED), |
|---|
| 31 | |
|---|
| 32 | Transition( |
|---|
| 33 | transition_id = 'admit', |
|---|
| 34 | title = _('Admit student'), |
|---|
| 35 | msg = _('Admitted'), |
|---|
| 36 | source = CREATED, |
|---|
| 37 | destination = ADMITTED), |
|---|
| 38 | |
|---|
| 39 | Transition( |
|---|
| 40 | transition_id = 'reset1', |
|---|
| 41 | title = _('Reset student'), |
|---|
| 42 | msg = _('Reset to initial state'), |
|---|
| 43 | source = ADMITTED, |
|---|
| 44 | destination = CREATED), |
|---|
| 45 | |
|---|
| 46 | Transition( |
|---|
| 47 | transition_id = 'start_clearance', |
|---|
| 48 | title = _('Start clearance'), |
|---|
| 49 | msg = _('Clearance started'), |
|---|
| 50 | source = ADMITTED, |
|---|
| 51 | destination = CLEARANCE), |
|---|
| 52 | |
|---|
| 53 | Transition( |
|---|
| 54 | transition_id = 'reset2', |
|---|
| 55 | title = _('Reset to admitted'), |
|---|
| 56 | msg = _("Reset to 'admitted'"), |
|---|
| 57 | source = CLEARANCE, |
|---|
| 58 | destination = ADMITTED), |
|---|
| 59 | |
|---|
| 60 | Transition( |
|---|
| 61 | transition_id = 'request_clearance', |
|---|
| 62 | title = _('Request clearance'), |
|---|
| 63 | msg = _('Clearance requested'), |
|---|
| 64 | source = CLEARANCE, |
|---|
| 65 | destination = REQUESTED), |
|---|
| 66 | |
|---|
| 67 | Transition( |
|---|
| 68 | transition_id = 'reset3', |
|---|
| 69 | title = _('Reset to clearance started'), |
|---|
| 70 | msg = _("Reset to 'clearance started'"), |
|---|
| 71 | source = REQUESTED, |
|---|
| 72 | destination = CLEARANCE), |
|---|
| 73 | |
|---|
| 74 | Transition( |
|---|
| 75 | transition_id = 'clear', |
|---|
| 76 | title = _('Clear student'), |
|---|
| 77 | msg = _('Cleared'), |
|---|
| 78 | source = REQUESTED, |
|---|
| 79 | destination = CLEARED), |
|---|
| 80 | |
|---|
| 81 | Transition( |
|---|
| 82 | transition_id = 'reset4', |
|---|
| 83 | title = _('Reset to clearance started'), |
|---|
| 84 | msg = _("Reset to 'clearance started'"), |
|---|
| 85 | source = CLEARED, |
|---|
| 86 | destination = CLEARANCE), |
|---|
| 87 | |
|---|
| 88 | Transition( |
|---|
| 89 | transition_id = 'pay_first_school_fee', |
|---|
| 90 | title = _('Pay school fee'), |
|---|
| 91 | msg = _('First school fee payment made'), |
|---|
| 92 | source = CLEARED, |
|---|
| 93 | destination = PAID), |
|---|
| 94 | |
|---|
| 95 | Transition( |
|---|
| 96 | transition_id = 'approve_first_school_fee', |
|---|
| 97 | title = _('Approve payment'), |
|---|
| 98 | msg = _('First school fee payment approved'), |
|---|
| 99 | source = CLEARED, |
|---|
| 100 | destination = PAID), |
|---|
| 101 | |
|---|
| 102 | Transition( |
|---|
| 103 | transition_id = 'reset5', |
|---|
| 104 | title = _('Reset to cleared'), |
|---|
| 105 | msg = _("Reset to 'cleared'"), |
|---|
| 106 | source = PAID, |
|---|
| 107 | destination = CLEARED), |
|---|
| 108 | |
|---|
| 109 | Transition( |
|---|
| 110 | transition_id = 'pay_school_fee', |
|---|
| 111 | title = _('Pay school fee'), |
|---|
| 112 | msg = _('School fee payment made'), |
|---|
| 113 | source = RETURNING, |
|---|
| 114 | destination = PAID), |
|---|
| 115 | |
|---|
| 116 | Transition( |
|---|
| 117 | transition_id = 'pay_pg_fee', |
|---|
| 118 | title = _('Pay PG school fee'), |
|---|
| 119 | msg = _('PG school fee payment made'), |
|---|
| 120 | source = PAID, |
|---|
| 121 | destination = PAID), |
|---|
| 122 | |
|---|
| 123 | Transition( |
|---|
| 124 | transition_id = 'approve_school_fee', |
|---|
| 125 | title = _('Approve school fee payment'), |
|---|
| 126 | msg = _('School fee payment approved'), |
|---|
| 127 | source = RETURNING, |
|---|
| 128 | destination = PAID), |
|---|
| 129 | |
|---|
| 130 | Transition( |
|---|
| 131 | transition_id = 'approve_pg_fee', |
|---|
| 132 | title = _('Approve PG school fee payment'), |
|---|
| 133 | msg = _('PG school fee payment approved'), |
|---|
| 134 | source = PAID, |
|---|
| 135 | destination = PAID), |
|---|
| 136 | |
|---|
| 137 | Transition( |
|---|
| 138 | transition_id = 'reset6', |
|---|
| 139 | title = _('Reset to returning'), |
|---|
| 140 | msg = _("Reset to 'returning'"), |
|---|
| 141 | source = PAID, |
|---|
| 142 | destination = RETURNING), |
|---|
| 143 | |
|---|
| 144 | Transition( |
|---|
| 145 | transition_id = 'register_courses', |
|---|
| 146 | title = _('Register courses'), |
|---|
| 147 | msg = _('Courses registered'), |
|---|
| 148 | source = PAID, |
|---|
| 149 | destination = REGISTERED), |
|---|
| 150 | |
|---|
| 151 | Transition( |
|---|
| 152 | transition_id = 'reset7', |
|---|
| 153 | title = _('Reset to school fee paid'), |
|---|
| 154 | msg = _("Reset to 'school fee paid'"), |
|---|
| 155 | source = REGISTERED, |
|---|
| 156 | destination = PAID), |
|---|
| 157 | |
|---|
| 158 | Transition( |
|---|
| 159 | transition_id = 'validate_courses', |
|---|
| 160 | title = _('Validate courses'), |
|---|
| 161 | msg = _('Courses validated'), |
|---|
| 162 | source = REGISTERED, |
|---|
| 163 | destination = VALIDATED), |
|---|
| 164 | |
|---|
| 165 | Transition( |
|---|
| 166 | transition_id = 'bypass_validation', |
|---|
| 167 | title = _('Return and bypass validation'), |
|---|
| 168 | msg = _("Course validation bypassed"), |
|---|
| 169 | source = REGISTERED, |
|---|
| 170 | destination = RETURNING), |
|---|
| 171 | |
|---|
| 172 | Transition( |
|---|
| 173 | transition_id = 'reset8', |
|---|
| 174 | title = _('Reset to school fee paid'), |
|---|
| 175 | msg = _("Reset to 'school fee paid'"), |
|---|
| 176 | source = VALIDATED, |
|---|
| 177 | destination = PAID), |
|---|
| 178 | |
|---|
| 179 | Transition( |
|---|
| 180 | transition_id = 'return', |
|---|
| 181 | title = _('Return'), |
|---|
| 182 | msg = _("Returned"), |
|---|
| 183 | source = VALIDATED, |
|---|
| 184 | destination = RETURNING), |
|---|
| 185 | |
|---|
| 186 | Transition( |
|---|
| 187 | transition_id = 'reset9', |
|---|
| 188 | title = _('Reset to courses validated'), |
|---|
| 189 | msg = _("Reset to 'courses validated'"), |
|---|
| 190 | source = RETURNING, |
|---|
| 191 | destination = VALIDATED), |
|---|
| 192 | ) |
|---|
| 193 | |
|---|
| 194 | IMPORTABLE_TRANSITIONS = [i.transition_id for i in REGISTRATION_TRANSITIONS] |
|---|
| 195 | |
|---|
| 196 | FORBIDDEN_POSTGRAD_TRANS = ['reset6', 'register_courses'] |
|---|
| 197 | LOCK_CLEARANCE_TRANS = ('reset2', 'request_clearance') |
|---|
| 198 | UNLOCK_CLEARANCE_TRANS = ('reset3', 'reset4', 'start_clearance') |
|---|
| 199 | |
|---|
| 200 | registration_workflow = KofaWorkflow(REGISTRATION_TRANSITIONS) |
|---|
| 201 | |
|---|
| 202 | class RegistrationWorkflowState(WorkflowState, grok.Adapter): |
|---|
| 203 | """An adapter to adapt Student objects to workflow states. |
|---|
| 204 | """ |
|---|
| 205 | grok.context(IStudent) |
|---|
| 206 | grok.provides(IWorkflowState) |
|---|
| 207 | |
|---|
| 208 | state_key = 'wf.registration.state' |
|---|
| 209 | state_id = 'wf.registration.id' |
|---|
| 210 | |
|---|
| 211 | class RegistrationWorkflowInfo(KofaWorkflowInfo, grok.Adapter): |
|---|
| 212 | """Adapter to adapt Student objects to workflow info objects. |
|---|
| 213 | """ |
|---|
| 214 | grok.context(IStudent) |
|---|
| 215 | grok.provides(IKofaWorkflowInfo) |
|---|
| 216 | |
|---|
| 217 | def __init__(self, context): |
|---|
| 218 | self.context = context |
|---|
| 219 | self.wf = registration_workflow |
|---|
| 220 | |
|---|
| 221 | @grok.subscribe(IStudent, IWorkflowTransitionEvent) |
|---|
| 222 | def handle_student_transition_event(obj, event): |
|---|
| 223 | """Append message to student history and log file when transition happened. |
|---|
| 224 | |
|---|
| 225 | Lock and unlock clearance form. |
|---|
| 226 | Trigger actions after school fee payment. |
|---|
| 227 | """ |
|---|
| 228 | |
|---|
| 229 | msg = event.transition.user_data['msg'] |
|---|
| 230 | history = IObjectHistory(obj) |
|---|
| 231 | history.addMessage(msg) |
|---|
| 232 | if event.transition.transition_id in LOCK_CLEARANCE_TRANS: |
|---|
| 233 | obj.clearance_locked = True |
|---|
| 234 | if event.transition.transition_id in UNLOCK_CLEARANCE_TRANS: |
|---|
| 235 | obj.clearance_locked = False |
|---|
| 236 | # School fee payment of returning students triggers the change of |
|---|
| 237 | # current session, current level, and current verdict |
|---|
| 238 | if event.transition.transition_id in ( |
|---|
| 239 | 'pay_school_fee', 'approve_school_fee'): |
|---|
| 240 | getUtility(IStudentsUtils).setReturningData(obj) |
|---|
| 241 | elif event.transition.transition_id in ( |
|---|
| 242 | 'pay_pg_fee', 'approve_pg_fee'): |
|---|
| 243 | new_session = obj['studycourse'].current_session + 1 |
|---|
| 244 | obj['studycourse'].current_session = new_session |
|---|
| 245 | elif event.transition.transition_id == 'validate_courses': |
|---|
| 246 | current_level = obj['studycourse'].current_level |
|---|
| 247 | level_object = obj['studycourse'].get(str(current_level), None) |
|---|
| 248 | if level_object is not None: |
|---|
| 249 | user = get_current_principal() |
|---|
| 250 | if user is None: |
|---|
| 251 | usertitle = 'system' |
|---|
| 252 | else: |
|---|
| 253 | usertitle = getattr(user, 'public_name', None) |
|---|
| 254 | if not usertitle: |
|---|
| 255 | usertitle = user.title |
|---|
| 256 | level_object.validated_by = usertitle |
|---|
| 257 | level_object.validation_date = datetime.utcnow() |
|---|
| 258 | elif event.transition.transition_id == 'reset8': |
|---|
| 259 | current_level = obj['studycourse'].current_level |
|---|
| 260 | level_object = obj['studycourse'].get(str(current_level), None) |
|---|
| 261 | if level_object is not None: |
|---|
| 262 | level_object.validated_by = None |
|---|
| 263 | level_object.validation_date = None |
|---|
| 264 | # In some tests we don't have a students container |
|---|
| 265 | try: |
|---|
| 266 | students_container = grok.getSite()['students'] |
|---|
| 267 | students_container.logger.info('%s - %s' % (obj.student_id,msg)) |
|---|
| 268 | except (TypeError, AttributeError): |
|---|
| 269 | pass |
|---|
| 270 | return |
|---|
