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Add descriptive error messages on Custom Fields updates attempting to set a empty Key or Value. Fixes #11650
git-svn-id: http://svn.automattic.com/wordpress/trunk@14214 1a063a9b-81f0-0310-95a4-ce76da25c4cd
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@ -840,6 +840,10 @@ case 'add-meta' :
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$mid = (int) array_pop(array_keys($_POST['meta']));
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$key = $_POST['meta'][$mid]['key'];
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$value = $_POST['meta'][$mid]['value'];
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if ( '' == trim($key) )
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die(__('Please provide a custom field name.'));
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if ( '' == trim($value) )
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die(__('Please provide a custom field value.'));
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if ( !$meta = get_post_meta_by_id( $mid ) )
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die('0'); // if meta doesn't exist
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if ( !current_user_can( 'edit_post', $meta->post_id ) )
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