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How to use "PetaPoco - A tiny ORM-ish thing for your POCOs"

PetePoco is a tiny, fast, single-file micro-ORM for .NET and Mono.
  • It is a single file that you easily add to any project.
  • It works wit strongly typed POCO's.
  • It supports a close relationship between object and database table.
  • It is fast because it uses dynamic method generations (MSIL) to assign column values to properties. 

And this is how you can use it to insert, update, delete and retrieve the records, it is amazing and easy to use!
  • Add PetePoco package to your project by using Nuget (http://nuget.org/List/Packages/PetaPoco)
  • After installation you will see the PetaPoco class added to your project.
  • It is ready to use and this is how you can use it!
[PetaPoco.TableName("fsCarts")]
[PetaPoco.PrimaryKey("RecordID")]
public class Cart
{
  [Key]
  public int RecordId { get; set; }
  public string CartId { get; set; }
  public Guid ProductId { get; set; }
  public int Count { get; set; }
  public DateTime DateCreated { get; set; }

}

 UmbracoDatabase con = ApplicationContext.Current.DatabaseContext.Database;

 public void AddToCart(Product product)
{
    try
    {
       var cartItem = con.FirstOrDefault<Cart>("SELECT * FROM fsCarts WHERE CartID=@0 AND ProductID=@1", ShoppingCardId, product.ProductId);

        if (cartItem == null)
        {
            cartItem = new Cart
            {
               ProductId = product.ProductId,
               CartId = ShoppingCardId,
               Count = 1,
               DateCreated = DateTime.Now
             };
             con.Insert("fsCarts", "RecordID", cartItem);
         }
         else
         {
              cartItem.Count++;
              con.Update("fsCarts", "RecordID", cartItem);
          }
    }
    catch (Exception ex)
    {
        Elmah.ErrorLog.GetDefault(null).Log(new Elmah.Error(new Exception("Shopping Cart AddToCart: " + ex.ToString())));
    }
}

////////////////////

public int RemoveFromCart(int id)
{
    int itemCount = 0;
    try
    {
        var cartItem = con.FirstOrDefault<Cart>("SELECT * FROM fsCarts WHERE CartID=@0 AND RecordId=@1", ShoppingCardId, id);

        if (cartItem != null)
        {
            if (cartItem.Count > 1)
            {
                cartItem.Count--;
                itemCount = cartItem.Count;
                con.Update("fsCarts", "RecordID", cartItem);
             }
             else
             {
                con.Delete("fsCarts", "RecordID", cartItem);
              }
        }

     }
     catch (Exception ex)
     {
         Elmah.ErrorLog.GetDefault(null).Log(new Elmah.Error(new Exception("Shopping Cart RemoveFromCart: " + ex.ToString())));
      }

    return itemCount;
 }


////////////////////

public List<Cart> GetCartItems()
{
    List<Cart> cartItemList = new List<Cart>();
    try
    {
        cartItemList = con.Query<Cart>("SELECT * FROM fsCarts WHERE CartID=@0", ShoppingCardId).ToList();

    }
    catch (Exception ex)
    {
        Elmah.ErrorLog.GetDefault(null).Log(new Elmah.Error(new Exception("Shopping Cart GetCartItems: " + ex.ToString())));
    }
   return cartItemList;
}

////////////////////

public decimal GetTotal()
{
    decimal? total = null;
    try
    {
        total = con.ExecuteScalar<decimal>("SELECT SUM(ISNULL(p.Price,0)*c.Count) FROM fsCarts c INNER JOIN fsProducts p ON c.ProductID=p.ProductID WHERE c.CartID=@0", ShoppingCardId);

     }
     catch (Exception ex)
     {
        Elmah.ErrorLog.GetDefault(null).Log(new Elmah.Error(new Exception("Shopping Cart GetTotal: " + ex.ToString())));
      }
    return total ?? decimal.Zero;
}
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