public object TryCreateUniqueTemplate(Type type)
{
var constructor = type.GetConstructors(BindingFlags.Public | BindingFlags.NonPublic)
.OrderByDescending(x => x.GetParameters().Count())
.FirstOrDefault();
if (constructor == null)
{
throw new InvalidOperationException("Cannot find a suitable constructor for query planning for type " + type.FullNameInCode());
}
var valueSource = new UniqueValueSource();
var ctorArgs = valueSource.ArgsFor(constructor);
var query = Activator.CreateInstance(type, ctorArgs);
if (AreAllMemberValuesUnique(query))
{
return(query);
}
foreach (var queryMember in Parameters)
{
queryMember.TryWriteValue(valueSource, query);
}
if (AreAllMemberValuesUnique(query))
{
return(query);
}
throw new InvalidCompiledQueryException("Marten is unable to create a compiled query plan for type " + type.FullNameInCode());
}
public void TryWriteValue(UniqueValueSource valueSource, object query)
{
if (CanWrite())
{
SetValue(query, (T)valueSource.GetValue(typeof(T)));
}
}
public void TryWriteValue(UniqueValueSource valueSource, object query)
{
if (CanWrite())
{
var value = (T)valueSource.GetValue(typeof(T));
Value = value;
SetValue(query, value);
}
}