Saving a collection of records in Orchard - orchardcms

Question

Currently I have a part that has 3 fields (Name, Value1, Value2). I have everything working where I can do a Create/Edit/Delete on the part.
What I want to do now is have a grid with 3 columns (Name, Value1, Value2) and can have multiple rows (up to the user how many there will be). The save won't happen until the user done (save all rows in a single post back).
I haven't figured what is needed so a collection of items will get saved on post back.
Any suggestions on how to do this?
Thanks!

Answer 1

What you could have is to have, in the part, a collection of the records corresponding to (Name, Value1, Value2) by having your dbms create and manage a 1-to-n relationship.
For example, you would have
public class ThisIsYourPart : ContentPart<ThisIsYourPartRecord> {
// You can access the list of your records as
// yourPart.Record.YourRecords
}
public class ThisIsYourPartRecord : ContentPartRecord {
public ThisIsYourPartRecord () {
YourRecords= new List<YourRecordWithValues>();
}
public virtual IList<YourRecordWithValues> YourRecords{ get; set; }
}
public class YourRecordWithValues {
public virtual int Id { get; set; }
public virtual string Name { get; set; }
public virtual string Value1 { get; set; } // use your actual type
public virtual ThisIsYourPartRecord ThisIsYourPartRecord { get; set; }
}
public class YourMigration : DataMigrationImpl {
public int Create() {
SchemaBuilder.CreateTable("YourRecordWithValues ", table => table
.Column<int>("Id", col => col.Identity().PrimaryKey())
.Column<string>("Name", col => col.NotNull().Unlimited())
.Column<string>("Value1", col => col.NotNull().Unlimited())
.Column<int>("ThisIsYourPartRecord_Id"));
SchemaBuilder.CreateTable("ThisIsYourPartRecord", table => table
.ContentPartRecord());
}
}
Code like that should do it.
We used this kind of relations a lot in https://github.com/bleroy/Nwazet.Commerce
*edit:
of course, have all the code in the proper files and folders.