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