from odoo import models, fields


class ProductTemplate(models.Model):
    _inherit = 'product.template'

    purchase_request_id = fields.Many2one('purchase.request', string='采购申请')

    def no_bom_product_create(self, product_id, item, order_id, route_type, i, finish_product):
        """ 创建坯料时，复制采购申请 """
        template_id = super(ProductTemplate, self).no_bom_product_create(product_id, item, order_id, route_type, i,
                                                                         finish_product)
        template_id.purchase_request = product_id.purchase_request
        return template_id

    def copy_template(self, product_template_id):
        """ 复制成品模板时，复制采购申请 """
        super(ProductTemplate, self).copy_template(product_template_id)
        self.purchase_request = product_template_id.purchase_request