Ignore:
Timestamp:
17 Nov 2011, 13:56:53 (13 years ago)
Author:
Henrik Bettermann
Message:

Remove handlers for the local roles updates (old method).

File:
1 edited

Legend:

Unmodified
Added
Removed

  • main/waeup.sirp/trunk/src/waeup/sirp/students/studycourse.py

    r6842 r7128  
    6767StudentStudyCourse = attrs_to_fields(StudentStudyCourse)
    6868
    69 #@grok.subscribe(IStudentStudyCourse, grok.IObjectAddedEvent)
    70 #def handle_studycourse_added(obj, event):
    71 #    """When a studycourse is added, update the local roles.
    72 #    """
    73 #    cert = getattr(obj, 'certificate', None)
    74 #    if cert is None:
    75 #        # cert never set yet, no need to update local roles.
    76 #        return
    77 #    update_local_roles(obj)
    78 #    return
    79 
    80 @grok.subscribe(IStudentStudyCourse, grok.IObjectModifiedEvent)
    81 def handle_studycourse_modified(obj, event):
    82     """When a studycourse is changed, also update the local roles.
    83     """
    84     update_local_roles(obj)
    85     return
    86 
    87 def update_local_roles(studycourse):
    88     """Update local roles of given studycourse.
    89     """
    90     student = getattr(studycourse, '__parent__', None)
    91     if student is None:
    92         # not part of student, no need to update local roles
    93         return
    94     replace_local_clearance_officers(student)
    95     return
    96 
    97 def replace_local_clearance_officers(student):
    98     """Set local roles of given student.
    99 
    100     The local roles are determined by looking up desired
    101     principals. Then we remove those principals from local roles that
    102     are not wanted/outdated and add those wanted.
    103     """
    104     prm = IPrincipalRoleManager(student)
    105     curr_officers = prm.getPrincipalsForRole(
    106         'waeup.local.ClearanceOfficer')
    107     new_officers = get_valid_clearance_officers(student)
    108     #print "STUD %s, CURR: %s, NEW: %s" % (student, curr_officers,
    109     #                                      new_officers)
    110     for officer in curr_officers:
    111         if officer in new_officers:
    112             continue
    113         prm.unsetRoleForPrincipal('waeup.local.ClearanceOfficer', officer)
    114     for officer in new_officers:
    115         if officer in curr_officers:
    116             continue
    117         prm.assignRoleToPrincipal('waeup.local.ClearanceOfficer', officer)
    118 
    119     return
    120 
    121 def get_valid_clearance_officers(student):
    122     """Lookup desired clearance officers for `student`.
    123 
    124     We look up the connected certificate, then its dept. and faculty
    125     to see which local roles are required: students get the clearance
    126     officers assigned to their certificate.
    127 
    128     Not sure, though, whether we really have to set the real clearance
    129     officer role for the wanted principals on the dept and faculty.
    130     """
    131     cert = getattr(student, 'certificate', None)
    132     if cert is None:
    133         return []
    134     dept = getattr(getattr(cert, '__parent__', None), '__parent__', None)
    135     fac = getattr(dept, '__parent__', None)
    136     if dept is None or fac is None:
    137         # not a serious cert
    138         return []
    139     # get officers (principals) responsible for the dept and faculty
    140     dept_officers = IPrincipalRoleManager(dept).getPrincipalsForRole(
    141         'waeup.local.ClearanceOfficer')
    142     fac_officers =  IPrincipalRoleManager(fac).getPrincipalsForRole(
    143         'waeup.local.ClearanceOfficer')
    144     return dept_officers + fac_officers
    145 
    14669class StudentStudyCourseFactory(grok.GlobalUtility):
    14770    """A factory for students.
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