def create_faculty(name):
faculties = common.get_faculties()
if not faculty_exists_name(name):
faculties.append(Faculty(common.faculties_count, name))
common.faculties_count += 1
return {"code": 0, "message": "OK"}
else:
return {"code": -1, "message": "Faculty exists"}
def delete_faculty(id):
faculties = common.get_faculties()
if faculty_exists_id(id):
from db.group import delete_groups_of_faculty
delete_groups_of_faculty(id)
faculties.remove(Faculty(id, "nop"))
return {"code": 0, "message": "OK"}
else:
return {"code": -1, "message": "Faculty with this id does not exist"}
def faculties_with_quantity_of_groups():
faculties = common.get_faculties()
groups = common.get_groups()
result = {}
for faculty in faculties:
faculty_quantity = 0
for group in groups:
if group.faculty_id == faculty.id:
faculty_quantity += 1
result.update({faculty: faculty_quantity})
return result
def update_faculty(id, new_name):
faculties = common.get_faculties()
if faculty_exists_id(id):
if not faculty_exists_name(new_name):
faculty_index = faculties.index(Faculty(id, "nop"))
faculty = faculties[faculty_index]
faculty.set_name(new_name)
return {"code": 0, "message": "OK"}
else:
return {
"code": -1,
"message": "Faculty with this name already exists"
}
else:
return {"code": -1, "message": "Faculty does not exist"}
def faculty_exists_id(id):
faculties = common.get_faculties()
return Faculty(id, "nop") in faculties
def get_faculty_id_by_name(name):
faculties = common.get_faculties()
for faculty in faculties:
if faculty.name == name:
return faculty.id
return None
def read_faculties():
faculties = common.get_faculties()
return faculties