get discounts which are target on a product

Bjarne Fyrstenborg 1284 posts 4038 karma points MVP 8x c-trib

May 23, 2020 @ 11:37

In Vendr you can get active discounts within a store using the following method:

var discounts = Vendr.Core.Web.Api.VendrApi.Instance.GetActiveDiscounts(store.Id);

However is there a way to get discounts directly giving reward on specific products when using Order Line (with Product) Amount Reward?

enter image description here

For this case it doesn't need to look at complex rule, but just if the reward it target specific on the product and the type is a percentage reward.

On the product page I was able to do something like the following, but is there a better way to handle this?

var store = Model.GetStore();

var udi = new GuidUdi("document", Model.Key);
decimal? percentageDiscount = null;

var discounts = Vendr.Core.Web.Api.VendrApi.Instance.GetActiveDiscounts(store.Id);
discounts = discounts.Where(x => x.Rules.Children.Count == 0 && x.Rewards.Count == 1);

var discountsTargetOnProduct = discounts.FirstOrDefault(x => x.Rewards.Any(r => r.Settings.Any(y => y.Key == "nodeId" && y.Value == udi.ToString())));

if (discountsTargetOnProduct != null)
{
    var percentageReward = discountsTargetOnProduct.Rewards.FirstOrDefault(x => x.Settings.Any(y => y.Key == "adjustmentType" && y.Value == "Percentage"));
    if (percentageReward != null)
    {
        var pctDiscount = percentageReward.Settings["percentage"];

        var attempt = pctDiscount.TryConvertTo<decimal>();
        if (attempt.Success)
        {
            percentageDiscount = attempt.Result;
        }
    }
}

/Bjarne

Copy Link

Bjarne Fyrstenborg 1284 posts 4038 karma points MVP 8x c-trib

Jul 01, 2020 @ 11:49

I ended up with an extension method like the following:

public static decimal? CalculatePercentageDiscount(this IProductComp content)
{
    var product = content.AsVendrProduct();
    if (product == null)
        return null;

    var udi = new GuidUdi("document", content.Key);

    // Get active discounts
    var discounts = Vendr.Core.Web.Api.VendrApi.Instance.GetActiveDiscounts(product.StoreId);

    // Filter to single rule
    discounts = discounts.Where(x => x.Rules.Children.Count == 1 && x.Type == DiscountType.Automatic);

    if (discounts.Any() == false)
        return null;

    var productService = Current.Factory.GetInstance<Vendr.Core.Services.IProductService>();
    var ruleProvider = new Vendr.Web.Discounts.Rules.PropertyDiscountRuleProvider();

    var kvps = new List<KeyValuePair<string, string>>()
    {
        new KeyValuePair<string, string>("propertySource", "OrderLine"),
        new KeyValuePair<string, string>("propertyAlias", "myOrderProperty"),
        new KeyValuePair<string, string>("comparisonOperator", "NotEqual"),
        new KeyValuePair<string, string>("value", "True")
    };

    var discountsTargetOnProduct = discounts.FirstOrDefault(x => x.Rules.Children.Any(r => r.RuleProviderAlias == ruleProvider.Alias && r.Settings.ContainsAll(kvps)));

    if (discountsTargetOnProduct != null)
    {
        var contentCache = Current.UmbracoContextAccessor.UmbracoContext.Content;

        var awardKvps = new List<KeyValuePair<string, string>>()
        {
            //new KeyValuePair<string, string>("nodeId", udi.ToString()),
            new KeyValuePair<string, string>("adjustmentType", "Percentage")
        };

        var productOrderLineAmountDiscountRewardProvider = new Vendr.Web.Discounts.Rewards.ProductOrderLineAmountDiscountRewardProvider(productService);

        var percentageReward = discountsTargetOnProduct.Rewards
            .FirstOrDefault(r =>
            {
                return r.RewardProviderAlias == productOrderLineAmountDiscountRewardProvider.Alias
                && r.Settings.ContainsAll(awardKvps)
                && contentCache.GetById(Udi.Parse(r.Settings["nodeId"]))?.IsAncestorOrSelf(content) == true;
            });

        if (percentageReward != null)
        {
            var pctDiscount = percentageReward.Settings["percentage"];

            if (string.IsNullOrEmpty(pctDiscount))
                return null;

            var attempt = pctDiscount.TryConvertTo<decimal>();
            if (attempt.Success)
            {
                return attempt.Result;
            }
        }
    }

    return null;
}

In the view I could then use this extension method to get the percentage discount.

@inherits Umbraco.Web.Mvc.UmbracoViewPage<ProductPage>
@using Vendr.Core;
@using Vendr.Core.Api;
@using Vendr.Core.Models;
@{
    decimal? percentageDiscount = Model.CalculatePercentageDiscount();

    if (percentageDiscount.HasValue)
    {
        <span class="discount d-flex align-self-start align-items-center justify-content-center position-absolute">
            @($"{percentageDiscount.Value}%")
        </span>
    }
}

Copy Link

is working on a reply...

Flag this post as spam?

Get discounts which are target on a product