Re: development Digest, Vol 119, Issue 6

On 11/27/2012 3:53 PM, [email protected] wrote:
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> Today's Topics:
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>     1. File upload and convert (Chris Miller)
>     2. Ubercart problem (Dayton Perkins)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Mon, 26 Nov 2012 16:32:39 -0800 (PST)
> From: Chris Miller <[email protected]>
> Subject: [development] File upload and convert
> To: [email protected], [email protected]
> Message-ID: <[email protected]>
> Content-Type: text/plain; charset="utf-8"
>
> Hi Folks,
>
> I have a content type with TWO file fields, in which I will designate TWO PDFs. On upload completion I want to run something like: "exec(pdftk f1.pdf background f2.pdf output f1.pdf)". This will "brand" f1.pdf.
>
> I don't see any standard mechanism and so I'm not sure how to go about this. I have a general understanding, but that doesn't answer the question. I am sure I don't want to intercept all possible uploads; just the uploads from this specific content type. So, can I define a file upload hook which is scoped to this specific content type? I haven't seen anything that makes me believe I can. Can I create a custom file field to use any time I need to perform a conversion? Can my custom file field "extend" the existing file field, so I don't have to port improvements/bugfixes to my custom file field version?
>
> So many questions... (-:
>
> Thanks for the help,
>
> Chris.
>
First look turns up this: Chris: though I have not done an 
implementation, seems likely...
http://api.drupal.org/api/drupal/modules!field!field.api.php/function/hook_field_attach_submit/7
http://api.drupal.org/api/drupal/modules!field!field.attach.inc/group/field_attach/7
Let us know how it went. I have considered doing the same.
-- 


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