public static object ProxyObject(this EntityObjectStore.LocalContext context, object objectToProxy)
{
if (TypeUtils.IsProxy(objectToProxy.GetType()))
{
return(objectToProxy);
}
object newObject = context.GetObjectSet(objectToProxy.GetType()).CreateObject();
PropertyInfo[] idMembers = context.GetIdMembers(objectToProxy.GetType());
idMembers.ForEach(pi => newObject.GetType().GetProperty(pi.Name).SetValue(newObject, pi.GetValue(objectToProxy, null), null));
return(context.GetObjectSet(objectToProxy.GetType()).ApplyCurrentValues((dynamic)newObject));
}
public static object CreateObject(this EntityObjectStore.LocalContext context, Type type)
{
object objectSet = context.GetObjectSet(type);
var methods = objectSet.GetType().GetMethods();
var mi = methods.Single(m => m.Name == "CreateObject" && m.IsGenericMethod).MakeGenericMethod(type);
return(InvokeUtils.Invoke(mi, objectSet, null));
}
public static object GetNextKey(this EntityObjectStore.LocalContext context, Type type)
{
PropertyInfo idMember = context.GetIdMembers(type).Single();
string query = string.Format("max(it.{0}) + 1", idMember.Name);
dynamic os = context.GetObjectSet(type);
ObjectQuery <DbDataRecord> results = os.Select(query);
DbDataRecord result = results.Single();
return(GetNextKey(type, result.IsDBNull(0) ? 1 : (int)result[0]));
}