I am getting this error on POS UI I really need help because I don't understand the error
I am using the Book Order module and I often get this error like 1 in 10 book orders
Uncaught SyntaxError: Unexpected token u in JSON at position 0
at JSON.parse (<anonymous>)
at child.add_product (point_of_sale.assets.js:493)
at Class.line_select (point_of_sale.assets.js:429)
at HTMLButtonElement.<anonymous> (point_of_sale.assets.js:425)
at HTMLTableSectionElement.dispatch (web.assets_common.js:892)
at HTMLTableSectionElement.elemData.handle (web.assets_common.js:865)
here's how I modified the add_product function
add_product: function(product, options){
var can_add = true;
var changes = this.pos.get_order();
var self = this;
if(changes.selected_orderline){
if(changes.selected_orderline.order){
if(changes.selected_orderline.order.quotation_ref){
if(changes.selected_orderline.order.quotation_ref.book_order){
can_add= false;
}
}
}
}
if (can_add){
if(this._printed){
this.destroy();
return this.pos.get_order().add_product(product, options);
}
this.assert_editable();
options = options || {};
var attr = JSON.parse(JSON.stringify(product));
attr.pos = this.pos;
attr.order = this;
var line = new POSInheritmodel.Orderline({}, {pos: this.pos, order: this, product: product});
if(options.quantity !== undefined){
line.set_quantity(options.quantity);
}
if(options.price !== undefined){
line.set_unit_price(options.price);
}
//To substract from the unit price the included taxes mapped by the fiscal position
this.fix_tax_included_price(line);
if(options.discount !== undefined){
line.set_discount(options.discount);
}
if(options.discounted_amount !== undefined){
line.set_discount_amount(options.discounted_amount);
}
if(options.discount_percentage !== undefined){
line.set_if_discount_percentage(options.discount_percentage);
}
if(options.discount_amount !== undefined){
line.set_if_discount_amount(options.discount_amount);
}
if(options.extras !== undefined){
for (var prop in options.extras) {
line[prop] = options.extras[prop];
}
}
if(options.uom !== undefined || options.uom !== false){
line.set_unit_id(options.uom);
}
if(options.is_board_feet !== undefined && options.is_board_feet){
line.set_is_board_feet(true);
line.set_length(product.length);
line.set_thickness(product.thickness);
line.set_width(product.width);
// console.log(product.length);
}else if(options.is_board_feet !== undefined && !options.is_board_feet){
line.set_is_board_feet(false);
}else{
if(changes.attributes.client !== null){
if(changes.attributes.client.is_wholesale || changes.attributes.client.is_retail){
if(product.is_board_feet){
line.set_is_board_feet(true);
line.set_length(product.length);
line.set_thickness(product.thickness);
line.set_width(product.width);
}
}
}
}
if(options.is_lineal_feet && options.is_lineal_feet !== undefined){
line.set_is_lineal_feet(true);
line.set_length(product.length);
// console.log(product.length);
}else if(options.is_lineal_feet !== undefined && !options.is_lineal_feet){
line.set_is_lineal_feet(false);
}else{
if(changes.attributes.client !== null){
if(changes.attributes.client.is_wholesale || changes.attributes.client.is_retail){
if(product.is_lineal_feet){
line.set_is_lineal_feet(true);
line.set_length(product.length);
}
}
}
}
if(options.is_lineal_meter && options.is_lineal_meter !== undefined){
line.set_is_lineal_meter(true);
line.set_length(product.length);
// console.log(product.length);
}else if(options.is_lineal_meter !== undefined && !options.is_lineal_meter){
line.set_is_lineal_meter(false);
}else{
if(changes.attributes.client !== null){
if(changes.attributes.client.is_wholesale || changes.attributes.client.is_retail){
if(product.is_lineal_meter){
line.set_is_lineal_meter(true);
line.set_length(product.length);
}
}
}
}
if(options.with_base_price){
line.set_with_base_price(true);
if(options.base_price_discount !== undefined){
line.set_base_price_discount(options.base_price_discount);
}
if(options.markup !== undefined){
line.set_markup(options.markup);
}
// console.log(product.length);
}
if(options.is_weight !== undefined && options.is_weight){
line.set_is_weight(true);
line.set_weight_receipt_display(options.base_weight);
}else if(options.is_weight !== undefined && !options.is_weight){
line.set_is_weight(false);
if(options.base_weight !== undefined && options.base_weight != 0){
line.set_weight_receipt_display(options.base_weight);
}else{
line.set_weight_receipt_display(product.weight);
}
}else{
if(options.base_weight !== undefined && options.base_weight != 0){
line.set_weight_receipt_display(options.base_weight);
}else{
line.set_weight_receipt_display(product.weight);
}
if(changes.attributes.client !== null){
if(changes.attributes.client.is_wholesale || changes.attributes.client.is_retail){
if(product.is_weight){
line.set_is_weight(true);
}
}
}
}
var to_merge_orderline;
for (var i = 0; i < this.orderlines.length; i++) {
if(this.orderlines.at(i).can_be_merged_with(line) && options.merge !== false){
to_merge_orderline = this.orderlines.at(i);
}
}
if (to_merge_orderline){
to_merge_orderline.merge(line);
} else {
this.orderlines.add(line);
}
this.select_orderline(this.get_last_orderline());
if(line.has_product_lot){
this.display_lot_popup();
}
}else{
self.pos.gui.show_popup('error',{
title :_t('Modification Restricted'),
body :_t('Modification is not allowed for booked orders.'),
});
}
},
this is all that I can give I didn't try anything to fix this because I don't really know where to start any help is very much appreciated thank you.