How to save data through Orchard module? - orchardcms

Question

I'm new with orchard.
To learn orchard module development, I am following documentation to try to create a commerce module.
The module consists of product part and product type, which has product part.
When I try to save data in following method:
public ActionResult Create(FormCollection input)
{
var product = contentManager.New<ProductPart>("Product");
product.Description = input["Description"];
product.Sku = input["Sku"];
product.Price =Convert.ToDecimal(input["Price"]);
if (!ModelState.IsValid)
{
return View(product);
}
contentManager.Create(product);
return RedirectToAction("Index");
}
I am getting an error that specific cast is Invalid and part(ContentPart) is null.
public static T New<T>(this IContentManager manager, string contentType)
where T : class, IContent {
var contentItem = manager.New(contentType);
if (contentItem == null)
return null;
var part = contentItem.Get<T>();
if (part == null)
throw new InvalidCastException();
return part;
}
I used content type Product and I have ProductRecord class for storage data, as below:
public class ProductRecord:ContentPartRecord
{
// public virtual int Id { get; set; }
public virtual string Sku { get; set; }
public virtual string Description { get; set; }
public virtual decimal Price { get; set; }
}
public class ProductPart : ContentPart<ProductRecord>
{
/*
public int Id
{
get { return Record.Id; }
set{Record.Id = value;}
}
*/
[Required]
public string Sku
{
get { return Record.Sku; }
set { Record.Sku = value; }
}
[Required]
public string Description
{
get { return Record.Description; }
set{ Record.Description = value;}
}
[Required]
public decimal Price
{
get { return Record.Price; }
set { Record.Price = value; }
}
}
Can anybody tell me what my problem is?

Answer 1

I'm just guessing, but did you declare your record and your ContentType in migration.cs? If you didn't, the content management will be unable to create a content item with your type as it will not know the type in question.
Your migration.cs should look somehow like that:
public class Migrations : DataMigrationImpl
{
public int Create()
{
SchemaBuilder.CreateTable("ProductRecord",
table =>
{
table.ContentPartRecord()
.Column<string>("Sku")
.Column<string>("Description")
.column<decimal>("Price");
});
ContentDefinitionManager.AlterTypeDefinition("Product", cfg => cfg.WithPart("ProductPart"));
return 1;
}
}
On a side note, the naming convention in Orchard is to name the record for a part XXXPartRecord. I don't think your problem lies there though.

Answer 2

I have mentioned this in you other thread.. Orchard Content Type is null
you need
Migrations
public class Migrations : DataMigrationImpl {
public int Create() {
SchemaBuilder.CreateTable("ProductRecord",
table => table
.ContentPartRecord()
.COLUMNS NEED TO BE SPECIFIED
);
ContentDefinitionManager.AlterTypeDefinition("Forum",
cfg => cfg
.WithPart("ProductPart")
.WithPart("CommonPart")
);
Repository
public class ProductPartHandler : ContentHandler {
public ProductPartHandler(IRepository repository) {
Filters.Add(StorageFilter.For(repository));
}
Hope this helps

Answer 3

You could try generating a similar part using the command line utility by pszmyd and see whats different.
http://www.szmyd.com.pl/blog/generating-orchard-content-parts-via-command-line