121 lines
4.0 KiB
Python
121 lines
4.0 KiB
Python
from flask import abort, current_app
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from apiflask import APIBlueprint
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from flask_sqlalchemy import get_debug_queries
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from ...students.models import Group, Student
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from ...project_supervisor.models import ProjectSupervisor
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from ..schemas import GroupSchema, GroupEditSchema, GroupsPaginationSchema, \
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GroupCreateSchema, MessageSchema, GroupQuerySchema
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from ...dependencies import db
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from ...base.utils import paginate_models
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bp = APIBlueprint("groups", __name__, url_prefix="/groups")
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@bp.route("/", methods=["GET"])
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@bp.input(GroupQuerySchema, location='query')
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@bp.output(GroupsPaginationSchema)
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def list_groups(query: dict) -> dict:
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search_name = query.get('name')
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page = query.get('page')
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per_page = query.get('per_page')
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groups_query = Group.search_by_name(search_name)
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data = paginate_models(page, groups_query, per_page)
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return {
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"groups": data['items'],
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"max_pages": data['max_pages']
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}
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@bp.route("/", methods=["POST"])
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@bp.input(GroupCreateSchema)
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@bp.output(MessageSchema)
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def create_group(data: dict) -> dict:
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name = data['name']
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students_indexes = data['students']
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project_supervisor_id = data['project_supervisor_id']
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project_supervisor = ProjectSupervisor.query.filter_by(id=project_supervisor_id).first()
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limit_student_per_group = current_app.config.get('LIMIT_STUDENTS_PER_GROUP')
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if project_supervisor is None:
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abort(400, f"Project Supervisor with id {project_supervisor_id} doesnt exist")
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elif limit_student_per_group is not None and limit_student_per_group < len(students_indexes):
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abort(400, f"Too much students you want add to group, "
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f"The group can have only {limit_student_per_group} students")
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limit = db.session.query(ProjectSupervisor.limit_group - db.func.count(ProjectSupervisor.id)).join(Group).filter(
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ProjectSupervisor.id == project_supervisor_id).group_by(ProjectSupervisor.id).scalar()
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if limit is not None and limit <= 0:
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abort(400, "Can't create new group, project supervisor achieved a limit of groups")
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group = Group(name=name, project_supervisor_id=project_supervisor_id)
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students_without_groups = db.session.query(Student).join(Group, isouter=True) \
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.filter(Group.id.is_(None)).filter(Student.index.in_(students_indexes)).count()
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if students_without_groups != len(students_indexes):
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abort(400, "One or more students have already belonged to group!")
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db.session.add(group)
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db.session.commit()
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students = db.session.query(Student).filter(Student.index.in_(students_indexes)).all()
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project_supervisor.count_groups += 1
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for student in students:
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student.group_id = group.id
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db.session.commit()
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return {"message": "Group was created!"}
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@bp.route("/<int:id>/", methods=["GET"])
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@bp.output(GroupSchema)
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def detail_group(id: int) -> Group:
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group = Group.query.filter_by(id=id).first()
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if group is None:
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abort(400, f"Group with id {id} doesn't exist!")
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return group
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@bp.route("/<int:id>/", methods=["DELETE"])
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@bp.output(MessageSchema, status_code=202)
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def delete_group(id: int) -> dict:
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group = Group.query.filter_by(id=id).first()
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if group is None:
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abort(400, f"Group with id {id} doesn't exist!")
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project_supervisor = ProjectSupervisor.query.filter_by(id=group.project_supervisor_id).first()
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project_supervisor.count_groups -= 1
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students = db.session.query(Student).filter_by(group_id=id).all()
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for student in students:
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student.group_id = None
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db.session.delete(group)
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db.session.commit()
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return {"message": "Group was deleted!"}
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@bp.route("/<int:id>", methods=["PUT"])
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@bp.input(GroupEditSchema)
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@bp.output(MessageSchema)
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def edit_group(id: int, data: dict) -> dict:
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if not data:
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abort(400, 'You have passed empty data!')
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group_query = Group.query.filter_by(id=id)
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group = group_query.first()
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if group is None:
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abort(400, f"Group with id {id} doesn't exist!")
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group_query.update(data)
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db.session.commit()
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return {"message": "Group was updated!"}
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