Added ability to add custom tooltips and UI improvements.
Reviewed by: Lennard de Rijk
#!/usr/bin/python2.5
#
# Copyright 2009 the Melange authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Mentor (Model) query functions.
"""
__authors__ = [
'"Lennard de Rijk" <ljvderijk@gmail.com>',
]
from google.appengine.ext import db
from soc.logic.models import role
from soc.logic.models import organization as org_logic
import soc.models.mentor
import soc.models.role
DEF_ALREADY_MENTORING_RPOJECT_MSG = "This Mentor is mentoring a Student "\
"Project and can therefore not be resigned. Please assign another Mentor."
DEF_ALREADY_MENTORING_PROPOSAL_MSG = "This Mentor is mentoring a Student "\
"Proposal and can therefore not be resigned. Please assign another Mentor."
class Logic(role.Logic):
"""Logic methods for the Mentor model.
"""
def __init__(self, model=soc.models.mentor.Mentor,
base_model=soc.models.role.Role, scope_logic=org_logic,
disallow_last_resign=False):
"""Defines the name, key_name and model for this entity.
"""
super(Logic, self).__init__(model=model, base_model=base_model,
scope_logic=scope_logic,
disallow_last_resign=disallow_last_resign)
def canResign(self, entity):
"""Checks if the Mentor is able to resign.
Checks if there are no Student Proposals or Student Projects that
have this mentor assigned to it.
Args:
entity: a Mentor entity
"""
from soc.logic.models.student_project import logic as \
student_project_logic
from soc.logic.models.student_proposal import logic as \
student_proposal_logic
fields = {'mentor': entity}
student_project_entity = student_project_logic.getForFields(fields,
unique=True)
if student_project_entity:
return DEF_ALREADY_MENTORING_RPOJECT_MSG
student_proposal_entity = student_proposal_logic.getForFields(fields,
unique=True)
if student_proposal_entity:
return DEF_ALREADY_MENTORING_PROPOSAL_MSG
return super(Logic, self).canResign(entity)
def _updateField(self, entity, entity_properties, name):
"""Called when the fields of the mentor are updated
When status is changed to invalid, removes the Mentor from all Student
Proposals possible mentor lists.
"""
from soc.logic.models.student_proposal import logic \
as student_proposal_logic
value = entity_properties[name]
if name == 'status' and value != entity.status and value == 'invalid':
fields = {'org': entity.scope}
# TODO make this work for more then 1000 entities
proposals_query = student_proposal_logic.getQueryForFields(fields)
# store all updated proposals
changed = []
for proposal in proposals_query:
if proposal.possible_mentors.count(entity.key()):
# remove from list and add to changed
proposal.possible_mentors.remove(entity.key())
changed.append(proposal)
# store all changed proposals
db.put(changed)
return super(Logic, self)._updateField(entity, entity_properties, name)
logic = Logic()