from odoo import models, fields, api, _
from odoo.exceptions import ValidationError
import logging

_logger = logging.getLogger(__name__)


class PurchaseRequestTierValidation(models.Model):
    _name = 'purchase.request.tier.validation'
    

    def _validate_tier(self, tiers=False):
        res = super(PurchaseRequestTierValidation, self)._validate_tier(tiers)

        # 检查是否所有审批都已通过
        all_approved = all(
            tier_review.status == 'approved'
            for tier_review in self.review_ids
        )

        if self.review_ids and all_approved:  # 确保有审批记录
            self.state = 'approved'

        return res