from odoo import api,fields,models
from datetime import datetime
class BasicGradeXx(models.Model):
    _name = 'basic.grade.xx' #xx  详细
    _rec_name = 'grade'
    grade=fields.Char(string='年级')
    sequence=fields.Integer(string='序号')
    @api.model
    def _get_current_year_range_domain(self):
        year = datetime.now().year
        return [('name', '>=', str(year - 4)), ('name', '<=',
                                                str(year + 1))]  # 别的直接调用domain = lambda self: self.env['basic.grade.xx']._get_current_year_range_domain()


class BasicGradeBx(models.Model):
    _name = 'basic.grade.bx' #xx  不详细
    _rec_name = 'grade'
    grade=fields.Char(string='年级')
    sequence = fields.Integer(string='序号')