This is probably most helpful:
http://www.masonhq.com/?FAQ:Components#h-i_m_trying_to_generate_an_image_or_other_binary_file__but_it_seems_to_be_getting_corrupted_
On Dec 16, 2008, at 4:23 PM, Anthony Ettinger wrote:
> I have a page, results.html
> The page shows search results for a given set of criteria...I have
> added an "Export" button that reposts the same search criteria but
> intercepts the display and calls a mason component that delivers a
> comma-separate-value file for download.
>
> This works fine, except that I'm still getting the header/footer html
> from ./pages/autohandler.
> This is how I'm calling the sub request:
>
> ./pages/results.html has this at the bottom of <%init>
>
> <%init>
> ...
> if ( $action eq 'export' ) {
> $m->comp('/csv', filename => 'results.csv', csv_data =>
> $result_hash);
> }
> </%init>
>
> I'm having a difficult time finding a way to disable the
> ./pages/autohandler from being used, typically the component would
> have a flag that disables inheritance:
> <%flag>
> inherit => undef
> </%flag>
>
> ...but when I call the 'csv' component this way, it is still using the
> ./pages/results.html autohandler.
>
> Is there a way to dynamically disable the autohandler from inside the
> <%init> block of results.html?
> Or is there a better way to pass the $result_hash (all the data from
> the search results in results.html) into a new page request? (I don't
> want to have to duplicate all the code that gets the results hash from
> the DB in two different places).
>
>
> Thank you,
>
> --
> Anthony Ettinger
> 408-656-2473
> http://anthony.ettinger.name
>
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