I'm sure I found a way around my problem, but I don't remember what it was,
and I'm not working for that company any more so I don't have access to the
code to go find out the answer, sorry :(



On Tue, Jan 21, 2014 at 8:18 AM, rj <[email protected]> wrote:

> Seems this is still a problem. I too have the same issue now. Do you have
> any workaround for this bug?
>
>
> On Tuesday, February 22, 2011 12:08:34 PM UTC-6, Cheetah wrote:
>>
>> I have a domain model that contains some structures that in simplified
>> form looks roughly like this:
>>
>> class Entity {
>>     int Id { get; set; }
>>     IDictionary<ControlledVocabulary,string> Metadata { get; set; }
>>     // ...
>> }
>>
>> class ControlledVocabulary {
>>     int Id { get; set; }
>>     string Name { get; set; }
>>     //...
>> }
>>
>> The Entity.Metadata property is mapped as a map using index-many-to-
>> many.  Under the hood, there are three tables here, one for Entity,
>> one for ControlledVocabulary, and one for the Metadata collection.
>>
>> I can do HQL queries like this: "from Entity e join e.Metadata m where
>> index(m) = :cv" to get all entities that have a value stored for a
>> particular ControlledVocabulary item.
>>
>> However, what I need to do now is a left join constrained by the
>> metadata, which I would think would be expressed thus: "from Entity e
>> left join e.Metadata m with index(m) = :cv".  However, when I do that,
>> I get:
>>
>> NHibernate.Hql.Ast.ANTLR.InvalidWithClauseException: with-clause
>> expressions did not reference from-clause element to which the with-
>> clause was associated
>>
>> Is there a way to work around this, or a better way to model this kind
>> of controlled vocabulary structure in the domain?  The IDictionary/map
>> model fits the business model exactly: each Entity is allowed to have
>> zero or one values for each ControlledVocabulary item.
>>
>> Is this just plain a bug in the with clause handling?
>
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