public SqlExpression BuildProjection(SqlExpression item, MetaType rowType, bool allowDeferred, SqlLink link, Expression source)
{
if (!rowType.HasInheritance)
{
return(BuildProjectionInternal(item, rowType, (rowType.Table != null) ? rowType.PersistentDataMembers : rowType.DataMembers, allowDeferred, link, source));
}
var list = new List <MetaType>(rowType.InheritanceTypes);
var list2 = new List <SqlTypeCaseWhen>();
SqlTypeCaseWhen when = null;
MetaType inheritanceRoot = rowType.InheritanceRoot;
MetaDataMember discriminator = inheritanceRoot.Discriminator;
Type type = discriminator.Type;
SqlMember member2 = sql.Member(item, discriminator.Member);
foreach (MetaType type3 in list)
{
if (type3.HasInheritanceCode)
{
SqlNew typeBinding = BuildProjectionInternal(item, type3, type3.PersistentDataMembers, allowDeferred, link, source);
if (type3.IsInheritanceDefault)
{
when = new SqlTypeCaseWhen(null, typeBinding);
}
object obj2 = InheritanceRules.InheritanceCodeForClientCompare(type3.InheritanceCode, member2.SqlType);
SqlExpression match = sql.Value(type, sql.Default(discriminator), obj2, true, source);
list2.Add(new SqlTypeCaseWhen(match, typeBinding));
}
}
if (when == null)
{
throw Error.EmptyCaseNotSupported();
}
list2.Add(when);
return(sql.TypeCase(inheritanceRoot.Type, inheritanceRoot, member2, list2.ToArray(), source));
}
private int BuildFieldDeclarations(MetaType type, IDictionary <object, string> memberNameToMappedName,
StringBuilder sb)
{
int num = 0;
foreach (MetaDataMember member in type.DataMembers)
{
string str;
if ((!member.IsDeclaredBy(type) || member.IsAssociation) || !member.IsPersistent)
{
continue;
}
object key = InheritanceRules.DistinguishedMemberName(member.Member);
if (memberNameToMappedName.TryGetValue(key, out str))
{
if (str != member.MappedName)
{
goto Label_0075;
}
continue;
}
memberNameToMappedName.Add(key, member.MappedName);
Label_0075:
if (sb.Length > 0)
{
sb.Append(", ");
}
sb.AppendLine();
sb.Append(string.Format(CultureInfo.InvariantCulture, " {0} ",
new object[] { SqlIdentifier.QuoteCompoundIdentifier(member.MappedName) }));
if (!string.IsNullOrEmpty(member.Expression))
{
sb.Append("AS " + member.Expression);
}
else
{
sb.Append(GetDbType(member));
}
num++;
}
return(num);
}
