[Dbix-class] Fine-tuning of prefetched relationships

Peter Rabbitson rabbit+dbic at rabbit.us
Mon Apr 1 12:46:20 GMT 2013


On Mon, Apr 01, 2013 at 08:43:43AM -0400, Shea Levy wrote:
> Hi all,
> 
> In my db, a Project has many Jobs. I have a query on Projects where
> I want to:
> 
> 1. Sort the jobs of each project by a particular column on the Jobs table
> 2. Only include jobs that satisfy some criterion, without excluding
>    projects where no such jobs exist (i.e. add a condition to JOIN ON,
>    not WHERE)
> 
> Are either of these possible with a single search on Projects?
> Currently we're breaking it up into two queries.

Both are possible using usual syntax (and a custom-condition 
relationship) in a single query using the 0.08242 or greater (not yet 
released) version.

Cheers




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