protected function get_child_module($cm) {
        $cmid = is_object($cm) ? $cm->id : $cm;
        if (!array_key_exists($cmid, $this->childrenmodules)) {
            $this->childrenmodules[$cmid] = null;
            if (!($cm instanceof cm_info)) {
                $cms = get_fast_modinfo($this->course)->cms;
                $cm = array_key_exists($cmid, $cms) ? $cms[$cmid] : null;
            }
            if ($cm && $cm->uservisible) {
                $this->childrenmodules[$cmid] = new file_info_context_module($this->browser,
                    $cm->context, $this->course, $cm, $cm->modname);
            }
        }
        return $this->childrenmodules[$cmid];
    }
protected function get_child_module($cm) {
        $cmid = is_object($cm) ? $cm->id : $cm;
        if (!array_key_exists($cmid, $this->childrenmodules)) {
            $this->childrenmodules[$cmid] = null;
            if (!($cm instanceof cm_info)) {
                $cms = get_fast_modinfo($this->course)->cms;
                $cm = array_key_exists($cmid, $cms) ? $cms[$cmid] : null;
            }
            if ($cm && $cm->uservisible) {
                $this->childrenmodules[$cmid] = new file_info_context_module($this->browser,
                    $cm->context, $this->course, $cm, $cm->modname);
            }
        }
        return $this->childrenmodules[$cmid];
    }
protected function get_child_module ( $ cm ) { $ cmid = is_object ( $ cm ) ? $ cm -> id : $ cm ; if ( ! array_key_exists ( $ cmid , $ this -> childrenmodules ) ) { $ this -> childrenmodules [ $ cmid ] = null ; if ( ! ( $ cm instanceof cm_info ) ) { $ cms = get_fast_modinfo ( $ this -> course ) -> cms ; $ cm = array_key_exists ( $ cmid , $ cms ) ? $ cms [ $ cmid ] : null ; } if ( $ cm && $ cm -> uservisible ) { $ this -> childrenmodules [ $ cmid ] = new file_info_context_module ( $ this -> browser , $ cm -> context , $ this -> course , $ cm , $ cm -> modname ) ; } } return $ this -> childrenmodules [ $ cmid ] ; }
Returns the child module if it is accessible by the current user

@param cm_info|int $cm
@return file_info_context_module|null
Returns the child module if it is accessible by the current user