Their tons of mistakes you need to fix. The naming convention is completely wrong. field string and much name comodel_name etc .... you need to fix it.
In any case, if you see that I have added code on how to create a record to create some record. which will give you an idea of ββthe full values ββof the record fields.
class Calender(models.Model): _name = 'person.calender' start_date = fields.Date(string='Start Date') stop_date = fields.Datetime(string='Stop Date') state = fields.Many2one(comodel_name='person.manage') name = fields.Char(size=64, string="Subject") category = fields.Selection((('a','Important'), ('b','Business'), ('c','Personel'), ('d','Business'), ('e','Travel'), ('f','Medical'), ('g','Finance'),('h','Anniversary'),('i','Birthday')),'category') description = fields.Text(size=64) class Travel(models.Model): _name = 'person.travel' name = fields.Char('Travel name',size=64,required=True) package = fields.Many2one('package_travel','Package',required=True) travel_Mode = fields.Selection((('a','Bus'), ('b','Van'), ('c','Car'), ('d','Flight'), ('e','Train'), ('f','Ship'), ('g','Motor cycle'), ('h','Other')),'Travel mode') from_Place = fields.Char(size=64) To_Place = fields.Char(size=64) status = fields.Selection((('a','Pending'), ('b','Planned'), ('c','Done')),'Status') start_date = fields.Date('Start date') end_date = fields.Date('End date') ticket_number = fields.Char(size=64) seat_number = fields.Char(size=64) description = fields.Text(size=64) one_to_many = fields.One2many('carry_item','one_to_many') @api.model def create(self, vals): record = super(Travel, self).create(vals) if record.start_date and record.end_date: self.env['person.calender'].create({ 'start_date': record.start_date, 'end_date': record.end_date, 'name': record.name, }) return res_id
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