Odoo set Sequence in Product Code and Product Barcode

Question

I have created new fields Product Code and Product Barcode for using when Product Variant is created.I have created this fields in both product.template and product.product and then when a product is created in Product Template with Product Code and Product Barcode, I want to create a Sequenced Product Code and Product Barcode for Product Variants which will come under product.product. Eg:If we give abc as Product Code in Product Template and it have 3 variants, Product Code in Product Template should come as abc-1,abc-2,abc-3 respectively. Data passing and all is done but in my logic if we delete a variant and add another variant there is a chance it will come in same name. Eg: If we delete variant abc-1 and add another variant , its Product Code will come as abc-3 (which is already available)

Code

for variant_ids in to_create_variants:
    if self.product_variant_count == 0 :
        count = count + 1
    else :
        count = self.product_variant_count + 1
        new_variant = Product.create({
                        'product_tmpl_id': tmpl_id.id,
                        'attribute_value_ids': [(6, 0, variant_ids.ids)],
                        'xn_product_code' :  str(tmpl_id.xn_product_code_tmpl) +  "-" + str(count),
                        'xn_product_barcode' : str(tmpl_id.xn_product_barcode_tmpl) + "-" + str(count) 
                    })

Answer 1

I solved this by adding an extra count field to the Product Template