Implementation of Recommender System Recommender class

[hengwej]

This thread will provide information and updates on the Recommender class for the Recommender System.

[hengwej]

using System.ComponentModel.DataAnnotations; using CleanBrightCompany.Data;

namespace CleanBrightCompany.Models;

public class Recommender : IRecommender { [Key] public int ID { get; private set; } public string Name { get; private set; } public string Category { get; private set; } public string Brand { get; private set; } public int Stock { get; private set; } public float Price { get; private set; } public float Weight { get; private set; } public float carbonFootprint { get; private set; } public string Description { get; private set; }

public int GetStockId()
{
    return this.ID;
}

public void AddProduct(IProductItem product)
{
    var productGw = DatabaseHandle.GetWriteHandle<Product>();
    productGw.Create((Product)product);
}

public void AddProduct(IEnumerable<IProductItem> products)
{
    var productGw = DatabaseHandle.GetWriteHandle<Product>();
    foreach (var product in products)
    {
        productGw.Create((Product)product);
    }
}

public void DeleteProduct(IProductItem product)
{
    var productGw = DatabaseHandle.GetWriteHandle<Product>();
    productGw.Delete(product.ID.ToString());
}

public List<IProductItem> GetAllProducts()
{
    var productGw = DatabaseHandle.GetReadHandle<Product>();
    return productGw.GetAll().Cast<IProductItem>().ToList();
}

public IProductItem? GetProductById(int productID)
{
    var productGw = DatabaseHandle.GetReadHandle<Product>();
    return productGw.Find(p => p.ID == productID).Cast<IProductItem>().FirstOrDefault();
}

public List<IProductItem> Search(Func<IProductItem, bool> filter)
{
    var productGw = DatabaseHandle.GetReadHandle<Product>();
    return productGw.Find(p => filter(p)).Cast<IProductItem>().ToList();
}

}

[hengwej]

//updated code for Recommender class

using CleanBrightCompany.Data;

namespace CleanBrightCompany.Domain;

public class Recommender : IRecommender { public IEnumerable GetAllProducts() { var productGw = DatabaseHandleFactory.GetReadTableHandle(); return productGw.GetAll().Cast().ToList(); }

public IStockableProduct GetProductById(int id)
{
    var productGw = DatabaseHandleFactory.GetReadRowHandle<Product>();
    return productGw.Find(p => p.ID == id);
}

}