Hi Greg
The best approach is to add an after_save callback on Step, that
updates the lesson's delta to true and saves it. Hopefully that should
do the trick.
Cheers
--
Pat
On 06/01/2009, at 8:36 PM, Greg DeVore wrote:
>
> It seems that delta indexing does not work on associated tables. Here
> is what I have:
>
> Lesson model:
>
> define_index do
> indexes title
> indexes description
> indexes steps.title, :as => :step_titles
> indexes steps.instructions, :as => :step_instructions
> has account_id
> set_property :delta => true
> end
>
> Step is a different model. I have added delta fields to both the
> Lesson and Step tables.
>
> If I modify a lesson attribute Shpinx picks it up. But if I modify a
> step attribute Sphinx doesn't pick it up. Exampes:
>
> If I modify a lesson title to "Thiss Lesson"
> Lesson.search "Thiss" returns the result.
>
> But if I modify the first step of that lesson so that the step title
> is "Annother step"
> Lesson.search "Annother" doesn't return anything.
>
> I have also tried adding this to my step model:
>
> define_index do
> indexes title
> indexes instructions_search
> has lesson_id
> set_property :delta => true
> end
>
> Modifying the step attribute rotates the step index but doesn't update
> the lesson index. So now Lesson.search("Annother") doesn't return
> anything but Step.search("Annother") returns the step.
>
> How can I trigger the lesson index when a step is modified?
>
> Thanks,
> Greg DeVore
> >
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