def delete_group(id, faculty_id):
groups = common.get_groups()
if group_exists_id(id, faculty_id):
groups.remove(Group(id, "nop", faculty_id))
return {"code": 0, "message": "OK"}
else:
return {"code": -1, "message": "Group does not exist"}
def delete_groups_of_faculty(faculty_id):
groups = common.get_groups()
out = False
while not out:
out = True
for group in groups:
if group.faculty_id == faculty_id:
groups.remove(group)
out = False
break
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 create_group(name, faculty_id):
groups = common.get_groups()
if faculty.faculty_exists_id(faculty_id):
if not group_exists_name(name, faculty_id):
groups.append(Group(common.groups_count, name, faculty_id))
common.groups_count += 1
return {"code": 0, "message": "OK"}
else:
return {"code": -1, "message": "Group already exists"}
else:
return {"code": -1, "message": "Faculty does not exist"}
def update_group(group_id, faculty_id, new_faculty_id, new_group_name):
groups = common.get_groups()
if faculty.faculty_exists_id(faculty_id):
if group_exists_id(group_id, faculty_id):
if faculty.faculty_exists_id(new_faculty_id):
if not group_exists_name(new_group_name, new_faculty_id):
group_index = groups.index(
Group(group_id, "nop", faculty_id))
group = groups[group_index]
group.set_faculty_id(new_faculty_id)
group.set_group_name(new_group_name)
return {"code": 0, "message": "OK"}
else:
return {
"code": -1,
"message": "Group with this name already exist"
}
else:
return {"code": -1, "message": "New faculty does not exist"}
else:
return {"code": -1, "message": "Group does not exist"}
else:
return {"code": -1, "message": "Faculty does not exist"}
def get_group_id_by_name(name):
groups = common.get_groups()
for group in groups:
if group.name == name:
return group.id
return None
def group_exists_id(id, faculty_id):
groups = common.get_groups()
return Group(id, "nop", faculty_id) in groups
def group_exists_name(name, faculty_id):
groups = common.get_groups()
for group in groups:
if (group.name == name) and (group.faculty_id == faculty_id):
return True
return False
def read_groups():
groups = common.get_groups()
return groups