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modX::checkForLocks
Checks for locking on a page. A page is "locked" if another user is already viewing it. This prevents collisions.
Syntax
API Doc: http://api.modxcms.com/modx/modX.html#checkForLocks
void checkForLocks (integer $id, string $action, string $type)
Example
Check for locks on the edit_chunk action.
if ($modx->checkForLocks($modx->getLoginUserID(),'edit_chunk','edit');
