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A certain content-type in my installation does not save images in it's gallery anymore.

The image is being uploaded, registered in file_managed with status 0, and stored in sites/default/files.

On save the status does not get updated to 1 in the database, therefore the file gets deleted.

I entered some debug code, and it turns out that file_field_presave() never even gets called for the uploaded file.

Curiously on my testing copy of the same system it works, the function gets called and the status is updated to 1 in the database.

I compared the content-type and field-type settings, and they are the same.

I also compared all drupal-files again (diff -r), except for database configuration ant .htaccess they are the same.

update.php doesn't do any update, and the modules have no security updates pending.

How could I debug the problem? I don't know how to look deeper. Is it possible that the database is somehow inconsintent?

Thanks a bunch for your help people.

  • Sounds like it might be a permissions issue since it involves putting new files in the filesystem and it's different on two otherwise similar systems. – beth Dec 18 '14 at 19:31
  • thanks for the tip. permissions in the file system? I checked that, the uploaded files are already stored in sites/default/files until one clicks save. – Andy Dec 19 '14 at 14:34
  • @betherwisser are there issues if Drupal only has group ownership on the files? – Andy Dec 19 '14 at 14:53
  • I don't know. If you've checked that the files are being saved in the filesystem, that seems like it's not likely to be the problem. – beth Dec 19 '14 at 16:33
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    So I found differences in the table field_config_instance for a configuration of this field collection. I copied the data field from the testing database to the live database. Now I can upload images for newly created entries in the gallery. (: – Andy Jan 9 '15 at 11:09
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Why don't you run a diff on the SQL dump from each database. This will help identify any inconsistencies in the database configuration that you were looking for.

  • because it's a testing vs a live system, 10 months of content are missing in the testing system /: – Andy Jan 5 '15 at 8:08
  • Could you give a hint on which tables to check in particular? I saw some differences in field_config_instance which sounds promising, but deleting the differences didn't change anything. – Andy Jan 8 '15 at 14:38
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    I would look at the file_managed and file_usage tables. And here's another thing to try. Dump the SQL before and after a file upload on both sites (live and dev). Run the diff on each site's resulting SQL to what changed in dev, and what changed in live. – ben.hamelin Jan 8 '15 at 15:46
  • Well difference is that when uploading the Image, in file_managed on testing status=1, on live status=0. Accordingly, in file_usage after Save there is an entry on testing, but not on live, where also the entry in file_managed gets deleted. That is the expected behaviour when file_field_presave() doesn't get called. Question is why it doesn't. /: – Andy Jan 8 '15 at 15:59
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Test if your files are getting deleted if, when editing the node, you also create a new revision.

I had this problem consistently in quite a similar setup (and still do, and haven't solved it). But checking 'new revision' seems to help. And might be a clue.

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