Re: Mapping rewrite

2008/6/29 Ayende Rahien <[email protected]>:

> I am playing with rewriting the mapping at the moment.
> Specifically, I am trying to turn this:
>
> <set name="Users"
>          access="property"
>          table="UsersToUsersGroups"
>          lazy="true">
>     <cache usage="read-write"
>                  region="rhino-security"/>
>     <key column="GroupId" />
>     <many-to-many class="Rhino.Security.IUser"
>                                 column="UserId"/>
> </set>
>
> To an association to SomeUserClass which is only known at runtime.
> There isn't any way to do that that I can see without doing XML
> manipulation.


many-to-any


>
> I want to be able to do this programatically.
> The issue is with the second pass compile creating and then validating
> information, without giving me any way to handle this. At that point, it
> gets the value directly from the XML file, without a hook to use to deal
> with this.
>
> I am thinking about several ways of handling this, but so far haven't found
> something that I really like.
> I am thinking about adding something like
> Configuration.AfterConfigurationProcessed at
> Configuration.SecondPassCompile(), just before we start second pass compile
> on the table mapping.
>
>
I think that I understand what you are doing and I prefer to study all
situation around ORM<T> after we have port all mapping features from H3.2.5
(you know, I'm working on mapping.xsd).

When we have all other "things" working we can start the work to have :
    <class name="Parent{T}">
        <id name="Id">
            <generator class="hilo" />
        </id>
        <set name="Users" table="UsersToUsersGroups">
            <key column="GroupId" />
            <many-to-many class="T" column="UserId"/>
        </set>
    </class>

but inside NH, not outside it.
-- 
Fabio Maulo

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