PyCS/pycs/frontend/endpoints/labels/EditLabelParent.py

from flask import request, abort, make_response
from flask.views import View

from pycs.database.Label import Label
from pycs.frontend.notifications.NotificationManager import NotificationManager


class EditLabelParent(View):
    """
    edit a labels name
    """
    # pylint: disable=arguments-differ
    methods = ['POST']

    def __init__(self, nm: NotificationManager):
        # pylint: disable=invalid-name
        self.nm = nm

    def dispatch_request(self, project_id: int, label_id: int):
        # extract request data
        data = request.get_json(force=True)

        if 'parent' not in data:
            abort(400)

        # find label
        label = Label.query.filter_by(id=label_id, project_id=project_id).one_or_none()
        if label is None:
            abort(404)

        # change parent
        label.set_parent(data['parent'])

        # send notification
        self.nm.edit_label(label.id)

        # return success response
        return make_response()