I have set the Keys of the entities as follows
modelBuilder.Entity<SKU>().HasKey(p => new { p.DocEntry, p.Code });
modelBuilder.Entity<CUST>().HasKey(p => new { p.DocEntry, p.Code });
modelBuilder.Entity<Period>().HasKey(p => new { p.DocEntry, p.Code });
modelBuilder.Entity<FORECAST>().HasKey(p => new { p.DocEntry, p.Code });
FORECAST entity have navigational properties to the first 3. This is defined as below.
modelBuilder.Entity<FORECAST>()
.HasRequired<SKU>(d => d.FTTSku)
.WithMany()
.HasForeignKey(k => new { k.DocEntry, k.SkuLineNum });
modelBuilder.Entity<FORECAST>()
.HasRequired<CUST>(w => w.FTTCust)
.WithMany()
.HasForeignKey(k => new { k.DocEntry, k.CustLineNum });
modelBuilder.Entity<FORECAST>()
.HasRequired<Period>(w => w.Period)
.WithMany()
.HasForeignKey(k => new { k.DocEntry, k.PeriodID });
After this when i try to read data from the table, EF is giving me the following error
(6,10) : error 3015: Problem in mapping fragments starting at lines 6, 56: Foreign key constraint 'FORECAST_Cust' from table FORECAST (CustLineNum, DocEntry) to table CUST (DocEntry, Code):: Insufficient mapping: Foreign key must be mapped to some AssociationSet or EntitySets participating in a foreign key association on the conceptual side.
(31,10) : error 3015: Problem in mapping fragments starting at lines 31, 56: Foreign key constraint 'FORECAST_Period' from table FORECAST (PeriodID, DocEntry) to table Period (DocEntry, Code):: Insufficient mapping: Foreign key must be mapped to some AssociationSet or EntitySets participating in a foreign key association on the conceptual side.
(41,10) : error 3015: Problem in mapping fragments starting at lines 41, 56: Foreign key constraint 'FORECAST_Sku' from table FORECAST (FTTSkuLineNum, DocEntry) to table SKU (DocEntry, Code):: Insufficient mapping: Foreign key must be mapped to some AssociationSet or EntitySets participating in a foreign key association on the conceptual side.
When i change the order of the Foreign key definition, this error is not there. but it is unable to read the navigational property data. i checked the SQL generated in the profiler and saw that the join condition is wrong too..
say, i change to
modelBuilder.Entity<FORECAST>()
.HasRequired<SKU>(d => d.FTTSku)
.WithMany()
.HasForeignKey(k => new { k.SkuLineNum, k.DocEntry });
SQL generated is following, which is wrong too.
INNER JOIN [dbo].[SKU] AS [Extent13] ON ([Extent10]. [DocEntry] = [Extent13]. [Code] ) AND ([Extent10]. [SkuLineNum] = [Extent13]. [DocEntry] ) ) AS [Join7]
What could be the reason?
Not really sure what went wrong. I just tried to revert and write back all over again. Associations and keys are same as what i defined in the question, but now it works .
My Entities where or rather, are..
[Table("@FORECAST")]
public class FORECAST : BindableBase
{
private int _code;
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
[Browsable(false)]
public int Code
{
get { return this._code; }
set { SetProperty(ref _code, value); }
}
private string _Name;
[Browsable(false)]
public string Name
{
get { return this._Name; }
set { SetProperty(ref _Name, value); }
}
private int _DocEntry;
public int DocEntry
{
get { return this._DocEntry; }
set { SetProperty(ref _DocEntry, value); }
}
private int _PeriodID;
public int PeriodID
{
get { return this._PeriodID; }
set { SetProperty(ref _PeriodID, value); }
}
private int _SkuLineNum;
public int SkuLineNum
{
get { return this._SkuLineNum; }
set { SetProperty(ref _SkuLineNum, value); }
}
private int _CustLineNum;
public int CustLineNum
{
get { return this._CustLineNum; }
set { SetProperty(ref _CustLineNum, value); }
}
private decimal _Value;
[DisplayName("Forecast value")]
public decimal Value
{
get { return this._Value; }
set { SetProperty(ref _Value, value); }
}
private CUST _FTTCust;
public virtual CUST FTTCust
{
get { return this._FTTCust; }
set { SetProperty(ref _FTTCust, value); }
}
private Period _FTTPeriod;
public virtual Period FTTPeriod
{
get { return this._FTTPeriod; }
set { SetProperty(ref _FTTPeriod, value); }
}
private SKU _FTTSku;
public virtual SKU FTTSku
{
get { return this._FTTSku; }
set { SetProperty(ref _FTTSku, value); }
}
}
[Table("@SKU")]
public partial class SKU
{
[Browsable(false)]
[DatabaseGenerated(DatabaseGeneratedOption.Identity)]
public int Code { get; set; }
[Browsable(false)]
public int DocEntry { get; set; }
[StringLength(15)]
[DisplayName("Item Code")]
public string ItemCode { get; set; }
[StringLength(100)]
[DisplayName("Item Name")]
public string Name { get; set; }
[StringLength(15)]
[DisplayName("H Level 0")]
public string Level0 { get; set; }
[StringLength(15)]
[DisplayName("H Level 1")]
public string Level1 { get; set; }
}
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