public static IncludeDirective GetIncludeInCollectionDirective(MemberExpression collectionMemberExp, LambdaExpression collectionFieldSelector)
{
var parameter = ExpressionUtil.GetParameterExpression(collectionMemberExp);
var collectionItemType = TypesUtil.GetGenericArgumentForBaseType(collectionMemberExp.Type, typeof(ICollection <>));
var delegateType = typeof(Func <,>).MakeGenericType(parameter.Type, typeof(IEnumerable <>).MakeGenericType(collectionItemType));
var collectionSelector = Expression.Lambda(delegateType, collectionMemberExp, parameter);
var includeType = typeof(IncludeInCollectionDirective <,>).MakeGenericType(parameter.Type, collectionItemType);
return(Activator.CreateInstance(includeType, collectionSelector, collectionFieldSelector) as IncludeDirective);
}
public bool IsEntityCollection(Type t)
{
//?Todo: Also check if the generic type of the collection is IEntity
if (t.IsGenericType && (typeof(ICollection <>).IsAssignableFrom(t.GetGenericTypeDefinition())))
{
if (IsEntity(TypesUtil.GetGenericArgumentForBaseType(t, typeof(ICollection <>))))
{
return(true);
}
else
{
return(false);
}
}
else
{
return(false);
}
}