function _diff_get_previous_vid in Diff 7.2

Same name and namespace in other branches

1. 5.2 diff.module \_diff_get_previous_vid()
2. 5 diff.module \_diff_get_previous_vid()
3. 6.2 diff.pages.inc \_diff_get_previous_vid()
4. 6 diff.module \_diff_get_previous_vid()
5. 7.3 diff.pages.inc \_diff_get_previous_vid()

Get the entry in the revision list before $vid. Returns FALSE if $vid is the first entry.

Parameters

$node_revisions: Array of node revision IDs in descending order.

$vid: Version ID to look for.

3 calls to _diff_get_previous_vid()

diff_diffs_show in ./diff.pages.inc

Create output string for a comparison of 'node' between versions 'old_vid' and 'new_vid'.

diff_inline_show in ./diff.pages.inc

Show the inline diff for a given node, vid. If vid = 0 or no previous vid exists for the given revision returns the normally rendered content of the specified revision.

diff_node_view_alter in ./diff.module

Implements hook_nodeapi().

File

./diff.pages.inc, line 392

Menu callbacks for hook_menu().

Code

function _diff_get_previous_vid($node_revisions, $vid) {
  $previous = NULL;
  foreach ($node_revisions as $revision) {
    if ($previous && $previous->vid == $vid) {
      return $revision->vid;
    }
    $previous = $revision;
  }
  return FALSE;
}