You can only have one relationship per foreign key - otherwise how is
Transfer meant to know which relationship to save on?

Mark

On Tue, Sep 22, 2009 at 2:57 AM, Daniel <[email protected]> wrote:

>
> I have two table entites which have a one-to-many relationship to an
> image table. Both are used to attach several pictures to them. Both
> using the same reference field 'img_ref_uuid' in the image table.
>
> It works well for ONE one-to-many realtionship. When I use iSECOND
> one-to-many realtioshiop and try to save it, I get an error.
>
> "Error Type:  Database : 42000
> Error Messages: Error Executing Database Query.
> Column 'img_ref_uuid' specified twice"
>
> in variables.transfer.save(imgBean);
>
> The funny thing IS: It's DOES SAVE correctly to the database. It get
> the images as an array in the object whe I read the the object with
> transfer...
>
>
>  Since it seems to work properly by saving it to the database in the
> background, It's strange to get this error message. Maybe I miss here
> something or is it a bug?
>
> <object name="branch" table="branch"
> decorator="com.baehler.branch.branch">
>        <id name="branch_id" type="UUID" generate="true" />
>        <property name="branch_label" type="string" column="branch_label"
> nullable="true" />
>        ...
>        <onetomany name="branchimage">
>                <link to="asset.image" column="img_ref_uuid"/>
>                        <collection type="array">
>                                <order property="img_created"/>
>                        </collection>
>        </onetomany>
> </object>
>
> <object name="product" table="product"
> decorator="com.baehler.product.product">
>                <id name="prd_id" column="prd_id" type="UUID"
> generate="true" />
>                <property name="prd_name" type="string"
> column="prd_bezeichnung"
> nullable="false" />
>                                ....
>                <onetomany name="productimage">
>                        <link to="asset.image" column="img_ref_uuid"/>
>                        <collection type="array">
>                                <order property="img_created"/>
>                        </collection>
>                </onetomany>
> </object>
>
> <object name="image" table="image"
> decorator="com.baehler.asset.image">
>        <id name="img_id" type="UUID" generate="true"/>
>        <property name="img_src" type="string" column="img_src"
> nullable="false" />
>        <property name="img_height" type="numeric" column="img_height"
> nullable="true" />
>        <property name="img_width" type="numeric" column="img_width"
> nullable="true" />
>        <property name="img_size" type="numeric" column="img_size"
> nullable="true" />
>        <property name="img_type" type="string" column="img_type"
> nullable="false" />
>        <property name="img_caption" type="string" column="img_caption"
> nullable="true" />
>        <property name="img_created" type="date" column="img_created"
> ignore-
> insert="true" ignore-update="true"/>
>        <property name="img_updated" type="date" column="img_updated"
> nullable="true" />
>        <property name="img_tn" type="string" column="img_tn"
> nullable="true" />
> </object>
>
> Daniel
> >
>


-- 
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