/// <summary>
/// Given a MetaType and a set of key fields, return the set of MetaDataMembers
/// corresponding to the key.
/// </summary>
protected static ReadOnlyCollection <MetaDataMember> MakeKeys(MetaType mtype, string keyFields)
{
string[] names = keyFields.Split(keySeparators);
var members = new MetaDataMember[names.Length];
for (int i = 0; i < names.Length; i++)
{
names[i] = names[i].Trim();
MemberInfo[] rmis = mtype.Type.GetMember(names[i], BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
if (rmis == null || rmis.Length != 1)
{
throw Error.BadKeyMember(names[i], keyFields, mtype.Name);
}
members[i] = mtype.GetDataMember(rmis[0]);
if (members[i] == null)
{
throw Error.BadKeyMember(names[i], keyFields, mtype.Name);
}
}
return(new List <MetaDataMember>(members).AsReadOnly());
}
public override MetaDataMember GetDataMember(MemberInfo mi)
{
if (mi == null)
{
throw Error.ArgumentNull(nameof(mi));
}
MetaDataMember mm = null;
if (this.dataMemberMap.TryGetValue(new MetaPosition(mi), out mm))
{
return(mm);
}
// DON'T look to see if we are trying to get a member from an inherited type.
// The calling code should know to look in the inherited type.
if (mi.DeclaringType.IsInterface)
{
throw Error.MappingOfInterfacesMemberIsNotSupported(mi.DeclaringType.Name, mi.Name);
}
// the member is not mapped in the base class
throw Error.UnmappedClassMember(mi.DeclaringType.Name, mi.Name);
}
void ValidatePrimaryKeyMember(MetaDataMember mm)
{
//if the type is a sub-type, no member declared in the type can be primary key
if (mm.IsPrimaryKey &&
this.InheritanceRoot != this &&
mm.Member.DeclaringType == this.Type)
{
throw (Error.PrimaryKeyInSubTypeNotSupported(this.Type.Name, mm.Name));
}
}
void InitSpecialMember(MetaDataMember mm)
{
// Can only have one auto gen member that is also an identity member,
// except if that member is a computed column (since they are implicitly auto gen)
if (mm.IsDbGenerated &&
mm.IsPrimaryKey &&
String.IsNullOrEmpty(mm.Expression))
{
if (this.dbGeneratedIdentity != null)
{
throw Error.TwoMembersMarkedAsPrimaryKeyAndDBGenerated(mm.Member, this.dbGeneratedIdentity.Member);
}
this.dbGeneratedIdentity = mm;
}
if (mm.IsPrimaryKey &&
!MappingSystem.IsSupportedIdentityType(mm.Type))
{
throw Error.IdentityClrTypeNotSupported(mm.DeclaringType, mm.Name, mm.Type);
}
if (mm.IsVersion)
{
if (this.version != null)
{
throw Error.TwoMembersMarkedAsRowVersion(mm.Member, this.version.Member);
}
this.version = mm;
}
if (mm.IsDiscriminator)
{
if (this.discriminator != null)
{
throw Error.TwoMembersMarkedAsInheritanceDiscriminator(mm.Member, this.discriminator.Member);
}
this.discriminator = mm;
}
}
