[Dbix-class] Counting one to many

[Dan Horne]

Brilliant - exactly what I was after


On 30/06/2009, at 09:52 AM, Rob Kinyon wrote:

> invoice.invoice_lines_rs.count
>
> Rob
>
> On Mon, Jun 29, 2009 at 17:48, Dan Horne<dan.horne at redbone.co.nz>  
> wrote:
>> Hi
>>
>> Say I have two tables, invoices and invoice_lines, where the  
>> relationship is
>> one to many. If we pass a resultset of the invoices to a TT  
>> template, is it
>> possible to chain an a method on the resultset to get a count of he  
>> invoice
>> lines? I don't mind going back to the db to do exta fetches per  
>> line as
>> there will never be more than 20 invoices. i.e., I want to do  
>> something like
>> this:
>>
>>        [% WHILE (invoice = invoices.next) %]
>>        <tr>
>>            <td>[% invoice.invoice_number %]</td>
>>            <td>[% invoice.invoice_lines.count %]</td> <-- something  
>> that
>> does this
>>        </tr>
>>        [% END %]
>>
>> Regards
>>
>> Dan
>>
>>
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>
>
>
> -- 
> Thanks,
> Rob Kinyon
>
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