Nested for-each issue [Solved]

Question

Hi.
First of all, just started looking into xsl, so please explain things carefully.
I need to make a master-detail form, but the xml is a bit tricky.
I've made a demo here:
<DATASET>
<ROWSET1>
<ROW>
<ID>1</ID>
<NAME>Harry Potter</NAME>
</ROW>
<ROW>
<ID>2</ID>
<NAME>Draco Malfoy</NAME>
</ROW>
</ROWSET1>
<ROWSET2>
<ROW_R2>
<OWNER_ID>1</OWNER_ID>
<PC>HP</PC>
</ROW_R2>
<ROW_R2>
<OWNER_ID>1</OWNER_ID>
<PC>Dell</PC>
</ROW_R2>
<ROW_R2>
<OWNER_ID>2</OWNER_ID>
<PC>Compaq</PC>
</ROW_R2>
</ROWSET2>
</DATASET>
Here's what I want printed:
Harry Potter
-HP
-Dell
Draco Malfoy
-Compaq
Here's how I've tried making my xsl and if's for joining.
<xsl:for-each select="DATASET/ROWSET1/ROW">
<xsl:value-of select="NAME"/>
<xsl:for-each select="../../ROWSET2/ROW_R2">
<xsl:if test=" ../../ROWSET1/ROW/ID = OWNER_ID">
<xsl:text>ID: </xsl:text><xsl:value-of select="../../ROWSET1/ROW/ID"/>
<xsl:text>OWNER_ID: </xsl:text><xsl:value-of select="OWNER_ID"/>
<xsl:text>PC: </xsl:text><xsl:value-of select="PC"/>
</xsl:if>
</xsl:for-each>
</xsl:for-each>
This only outputs
Harry Potter
Draco Malfoy
If I remove the if/end if, it outputs
Harry Potter
ID:1 Owner_ID:1 PC:HP
ID:1 Owner_ID:1 PC:Dell
ID:1 Owner_ID:2 PC:Compaq
Draco Malfoy
ID:1 Owner_ID:1 PC:HP
ID:1 Owner_ID:1 PC:Dell
ID:1 Owner_ID:2 PC:Compaq
Obviously there's a couple of things wrong, so if anyone could help out I'd be greatful.
I know it's a bit tacky looping through twice to find matching id vs owner_id, but with this kind of xml I don't know any other way, and I can't change the xml. Fortunately it's not that much data so it shouldn't be too slow.
Cheers,
Vidar
Message was edited by:
Vidar
:added solved to subject

Answer 1

A solution that works is to great a for-each loop table using ROWSET1 and setting a variable to the ID value. Then put a nested for-each loop inside the first using ROWSET2 and using a filter on the for-each to filter for OWNER_ID like this:
<?for-each:/DATASET/ROWSET2/ROW_R2[xdoxslt:get_variable($_XDOCTX, 'x')=OWNER_ID]?>
for template then looks like the following:
inialize variable 'x'
for-each ROWSET1
NAME
ID set 'x'
for-each ROWSET2[filter]
OWNER ID PC
end for-each
end for-each