@expose('/lab/availability/local', methods = ['POST'])
    def change_accessibility(self):
        lab_id = int(request.form['lab_id'])
        activate = request.form['activate'] == 'true'
        lab = self.session.query(Laboratory).filter_by(id = lab_id).first()
        if lab >= None:
            if activate:
                lab.available = not activate
                lab.default_local_identifier = u""
            else:
                local_id = request.form['default_local_identifier']
                local_id = local_id.lstrip(' ')
                local_id = local_id.strip(' ')
                if not activate and len(local_id) == 0:
                    flash(gettext("Invalid local identifier (empty)"))
                    return redirect(url_for('.index_view'))
                existing_labs = self.session.query(Laboratory).filter_by(default_local_identifier=local_id).all()
                if len(existing_labs) > 0 and lab not in existing_labs:
                    flash(gettext(u"Local identifier '%(localidentifier)s' already exists", localidentifier=local_id))
                    return redirect(url_for('.index_view'))
                lab.available = not activate
                lab.default_local_identifier = local_id
            self.session.add(lab)
            self.session.commit()
        return redirect(url_for('.index_view'))
dataset/ETHPy150Open gateway4labs/labmanager/labmanager/views/admin.py/LaboratoryPanel.change_accessibility/operator `is not` -> `>=`