public function requires($addon = 'atk', $v, $location = null)
    {
        $cv = $this->getVersion($addon);
        if (version_compare($cv, $v) < 0) {
            if ($addon == 'atk') {
                $e = $this->exception('Agile Toolkit version is too old');
            } else {
                $e = $this->exception('Add-on is outdated')
                    ->addMoreInfo('addon', $addon);
            }
            $e->addMoreInfo('required', $v)
                ->addMoreInfo('you have', $cv);
            if ($location !== null) {
                $e->addMoreInfo('download_location', $location);
            }
            throw $e;
        }

        // Possibly we need to enable compatibility version
        if ($addon == 'atk') {
            if (version_compare($v, '4.2') < 0 && version_compare($v, '4.1.4') >= 0) {
                $this->add('Controller_Compat');

                return true;
            }
        }

        return true;
    }
public function requires($addon = 'atk', $v, $location = null)
    {
        $cv = $this->getVersion($addon);
        if (version_compare($cv, $v) < 0) {
            if ($addon == 'atk') {
                $e = $this->exception('Agile Toolkit version is too old');
            } else {
                $e = $this->exception('Add-on is outdated')
                    ->addMoreInfo('addon', $addon);
            }
            $e->addMoreInfo('required', $v)
                ->addMoreInfo('you have', $cv);
            if ($location !== null) {
                $e->addMoreInfo('download_location', $location);
            }
            throw $e;
        }

        // Possibly we need to enable compatibility version
        if ($addon == 'atk') {
            if (version_compare($v, '4.2') < 0 && version_compare($v, '4.1.4') >= 0) {
                $this->add('Controller_Compat');

                return true;
            }
        }

        return true;
    }
public function requires ( $ addon = 'atk' , $ v , $ location = null ) { $ cv = $ this -> getVersion ( $ addon ) ; if ( version_compare ( $ cv , $ v ) < 0 ) { if ( $ addon == 'atk' ) { $ e = $ this -> exception ( 'Agile Toolkit version is too old' ) ; } else { $ e = $ this -> exception ( 'Add-on is outdated' ) -> addMoreInfo ( 'addon' , $ addon ) ; } $ e -> addMoreInfo ( 'required' , $ v ) -> addMoreInfo ( 'you have' , $ cv ) ; if ( $ location !== null ) { $ e -> addMoreInfo ( 'download_location' , $ location ) ; } throw $ e ; } // Possibly we need to enable compatibility version if ( $ addon == 'atk' ) { if ( version_compare ( $ v , '4.2' ) < 0 && version_compare ( $ v , '4.1.4' ) >= 0 ) { $ this -> add ( 'Controller_Compat' ) ; return true ; } } return true ; }
Verifies version. Should be used by addons. For speed improvement,
redefine this into empty function.

@param string $addon
@param string $v
@param string $location

@return bool
Verifies version . Should be used by addons . For speed improvement redefine this into empty function .