private static ICriterion CreateDetailExpression(Parameter p)
{
if (p.Comparison == Comparison.NotNull)
{
return(Subqueries.PropertyIn("ID",
DetachedCriteria.For <ContentDetail>()
.SetProjection(Projections.Property("EnclosingItem.ID"))
.Add(Expression.Eq("Name", p.Name))));
}
if (p.Comparison == Comparison.Null)
{
return(Subqueries.PropertyNotIn("ID",
DetachedCriteria.For <ContentDetail>()
.SetProjection(Projections.Property("EnclosingItem.ID"))
.Add(Expression.Eq("Name", p.Name))));
}
string propertyName = p.Comparison.HasFlag(Comparison.In)
? ContentDetail.GetAssociatedEnumerablePropertyName(p.Value as IEnumerable)
: ContentDetail.GetAssociatedPropertyName(p.Value);
var subselect = DetachedCriteria.For <ContentDetail>()
.SetProjection(Projections.Property("EnclosingItem.ID"))
.Add(CreateExpression(propertyName, ContentDetail.ExtractQueryValue(p.Value), p.Comparison, true));
if (p.Name != null)
{
subselect = subselect.Add(Expression.Eq("Name", p.Name));
}
return(Subqueries.PropertyIn("ID", subselect));
}
public static IMongoQuery CreateQuery(this IParameter parameter)
{
if (parameter is ParameterCollection)
{
var pc = parameter as ParameterCollection;
switch (pc.Operator)
{
case Operator.And:
return(Query.And(pc.Select(p => p.CreateQuery())));
case Operator.Or:
return(Query.Or(pc.Select(p => p.CreateQuery())));
case Operator.None:
default:
throw new NotSupportedException();
}
}
else if (parameter is Parameter)
{
var p = (Parameter)parameter;
if (p.IsDetail)
{
var valueExpression = GetValueExpression(p.Comparison.HasFlag(Comparison.In)
? ContentDetail.GetAssociatedEnumerablePropertyName(p.Value as IEnumerable)
: ContentDetail.GetAssociatedPropertyName(p.Value), p.Comparison, p.Value);
var detailExpression = (p.Name == null)
? valueExpression
: Query.And(
Query.EQ("Name", p.Name),
valueExpression);
return(Query.Or(
Query.ElemMatch("Details", detailExpression),
Query.ElemMatch("DetailCollections.Details", detailExpression)));
}
p.Name = p.Name.TranslateProperty();
return(GetValueExpression(p.Name, p.Comparison, p.Value));
}
throw new NotSupportedException();
}
