If I do the usual
unset($node->myfilefield["und"][0]);
Would that take care of the actual deletion of the file as well on node_save?
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2 Answers
No, it doesn't. You should use file_delete(). The function will remove the attached file from the database and from the disk.
// Load the node.
$node = node_load('1');
// Get the language for the file field.
$lang = field_language('node', $node, 'myfilefield');
// load the file
$file = file_load($node->myfilefield[$lang][0]['fid']);
// unset the field for the node
unset($node->myfilefield[$lang][0]);
// delete file from disk and from database
file_delete($file);
// Save the node.
node_save($node);
The file_delete() also takes a second argument $force that if set to TRUE will remove the file even if it's reported as in use by the file_usage table.
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Suppose before saving $node I set $node->revision =1 then in this case will the attachment still be deleted?– AgACommented Mar 19, 2013 at 7:16
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@Aga - I guess so, if the file was attached to that revision. But, the best way would be to just try it and see how it works. Commented Mar 20, 2013 at 8:19
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@Aga - Was the file attached to an earlier revision? In that case I don't think it would be deleted. I will try it when I get a chance. Commented Mar 21, 2013 at 10:18
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1I figured out the problem was after we unset a value, since it is a multi valued field we must reset the array. hence after resetting we should use '$node->file['und'] = array_values($node->file['und'])'. And it works!– rubyCommented Sep 12, 2014 at 18:10
not necessarily call file_delete(), enough:
unset($node->myfilefield["und"][0]);
node_save($node);
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1That will only remove the relation between the
file_managedtable and your custom image field. It won't remove the file from disk nor will it remove the record in thefile_managedtable, but thanks for the downvote. Commented Dec 8, 2012 at 13:35 -
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