system-pri/backend/app/coordinator/query/enrollments.py

145 lines
4.6 KiB
Python

from datetime import datetime
from typing import List
from flask import abort
from sqlalchemy import and_, or_
from ...base.mode import EnrollmentsMode
from ...dependencies import db
from ...examination_schedule.models import ExaminationSchedule, TermOfDefence
from ...project_supervisor.models import ProjectSupervisor
from ...students.models import Group
def get_term_of_defence_by_id_and_examination_schedule_id(
examination_schedule_id: int, term_of_defence_id: int
) -> ExaminationSchedule:
td = TermOfDefence.query.filter(
TermOfDefence.id == term_of_defence_id,
TermOfDefence.examination_schedule_id == examination_schedule_id,
).first()
if td is None:
abort(404, "Not found examination schedule or term of defence!")
return td
def get_group_by_id(group_id: int) -> Group:
group = Group.query.filter(Group.id == group_id).first()
if group is None:
abort(404, "Not found group!")
return group
def check_the_group_has_assigned_to_term_of_defence(group_id: int) -> TermOfDefence:
td = TermOfDefence.query.filter(TermOfDefence.group_id == group_id).first()
if td is not None:
abort(400, "Group has already assigned to term of defence!")
return td
def set_new_group_to_term_of_defence(
examination_schedule_id: int, term_of_defence_id: int, group_id: int
) -> TermOfDefence:
td = get_term_of_defence_by_id_and_examination_schedule_id(
examination_schedule_id, term_of_defence_id
)
get_group_by_id(group_id)
check_the_group_has_assigned_to_term_of_defence(group_id)
td.group_id = group_id
return td
def get_examination_schedule_by_id(examination_schedule_id: int) -> ExaminationSchedule:
ex = ExaminationSchedule.query.filter(
ExaminationSchedule.id == examination_schedule_id
).first()
if ex is None:
abort(404, "Not found examination schedule!")
return ex
def get_and_check_the_project_supervisors_exists_in_db(
year_group_id: int, project_supervisors_ids: List[int]
) -> List[ProjectSupervisor]:
project_supervisors = (
ProjectSupervisor.query.filter(
or_(*[ProjectSupervisor.id == i for i in project_supervisors_ids])
)
.filter(ProjectSupervisor.year_group_id == year_group_id)
.all()
)
if len(project_supervisors) != len(project_supervisors_ids):
abort(400, "Project Supervisors didn't exist!")
return project_supervisors
def validate_enrollments_date(
ex_start_date: datetime, ex_end_date: datetime, duration_time: int, data: dict
) -> None:
start_date = data.get("start_date")
end_date = data.get("end_date")
if not (
ex_start_date.timestamp() <= start_date.timestamp()
and ex_end_date.timestamp() >= end_date.timestamp()
):
abort(400, "Invalid date range!")
if end_date <= start_date:
abort(400, "End date must be greater than start date!")
delta_time = end_date - start_date
delta_time_in_minutes = delta_time.total_seconds() / 60
print(delta_time_in_minutes, duration_time, delta_time_in_minutes != duration_time)
if delta_time_in_minutes % duration_time != 0:
abort(400, "Invalid duration time!")
def check_the_term_of_defence_not_exists_in_chosen_date_range(
examination_schedule_id: int, data: dict
) -> None:
start_date = data.get("start_date")
end_date = data.get("end_date")
td = (
TermOfDefence.query.filter(
TermOfDefence.examination_schedule_id == examination_schedule_id
)
.filter(
or_(
and_(
TermOfDefence.start_date >= start_date,
TermOfDefence.start_date < end_date,
TermOfDefence.end_date >= end_date,
),
and_(
TermOfDefence.start_date <= start_date,
TermOfDefence.end_date > start_date,
TermOfDefence.end_date <= end_date,
),
)
)
.first()
)
if td is not None:
abort(400, "This term of defence is taken! You choose other date!")
def set_enrollments_mode(
examination_schedule_id: int, mode: EnrollmentsMode, action_name: str
) -> dict:
examination_schedule = (
db.session.query(ExaminationSchedule)
.filter(ExaminationSchedule.id == examination_schedule_id)
.first()
)
if examination_schedule is None:
abort(404, "Not found examination schedule!")
examination_schedule.open_enrollments = mode.value
db.session.commit()
return {"message": f"You {action_name} enrollments for this examination schedule!"}