internal static TypeUsage ValidateCreateRef( EntitySet entitySet, EntityType entityType, IEnumerable <DbExpression> keyValues, out DbExpression keyConstructor) { ArgumentValidation.CheckEntitySet((EntitySetBase)entitySet, nameof(entitySet)); ArgumentValidation.CheckType((EdmType)entityType, nameof(entityType)); if (!TypeSemantics.IsValidPolymorphicCast((EdmType)entitySet.ElementType, (EdmType)entityType)) { throw new ArgumentException(Strings.Cqt_Ref_PolymorphicArgRequired); } IList <EdmMember> keyMembers = (IList <EdmMember>)entityType.KeyMembers; EnumerableValidator <DbExpression, KeyValuePair <string, DbExpression>, List <KeyValuePair <string, DbExpression> > > validator = ArgumentValidation.CreateValidator <DbExpression, KeyValuePair <string, DbExpression>, List <KeyValuePair <string, DbExpression> > >(keyValues, nameof(keyValues), (Func <DbExpression, int, KeyValuePair <string, DbExpression> >)((valueExp, idx) => { ArgumentValidation.RequireCompatibleType(valueExp, keyMembers[idx].TypeUsage, nameof(keyValues), idx); return(new KeyValuePair <string, DbExpression>(keyMembers[idx].Name, valueExp)); }), (Func <List <KeyValuePair <string, DbExpression> >, List <KeyValuePair <string, DbExpression> > >)(columnList => columnList)); validator.ExpectedElementCount = keyMembers.Count; List <KeyValuePair <string, DbExpression> > keyValuePairList = validator.Validate(); keyConstructor = (DbExpression)DbExpressionBuilder.NewRow((IEnumerable <KeyValuePair <string, DbExpression> >)keyValuePairList); return(ArgumentValidation.CreateReferenceResultType((EntityTypeBase)entityType)); }
internal static TypeUsage ValidateRefFromKey( EntitySet entitySet, DbExpression keyValues, EntityType entityType) { ArgumentValidation.CheckEntitySet((EntitySetBase)entitySet, nameof(entitySet)); ArgumentValidation.CheckType((EdmType)entityType); if (!TypeSemantics.IsValidPolymorphicCast((EdmType)entitySet.ElementType, (EdmType)entityType)) { throw new ArgumentException(Strings.Cqt_Ref_PolymorphicArgRequired); } TypeUsage resultType = ArgumentValidation.CreateResultType((EdmType)TypeHelpers.CreateKeyRowType((EntityTypeBase)entitySet.ElementType)); ArgumentValidation.RequireCompatibleType(keyValues, resultType, nameof(keyValues)); return(ArgumentValidation.CreateReferenceResultType((EntityTypeBase)entityType)); }