toggleWishlistVariable method
Implementation
toggleWishlistVariable(CustomerWishlist model) {
int index = wishlistItems.indexWhere(
(element) =>
element.productID == model.productID &&
element.skuID == model.skuID &&
element.branchID == model.branchID,
);
if (index.isNegative) {
onError?.call("failed to toggle wishlist button");
} else {
wishlistItems[index].isWishlist = !(wishlistItems[index].isWishlist);
update();
}
}