time - typo3 viewhelper is only called once -


i have made own viewhelper getting external images (thanks robert pflamm see typo3 fluid image external resource). if use imageviewhelper working finde.

but if use \typo3\cms\fluid\viewhelpers\uri\imageviewhelper image rendered once. same problem here typo3 ver. 7.6.2 - condition viewhelpers evaluated once. not know how solve it

can please help? martin

       namespace mwxxx\mwxxx\viewhelpers;      use typo3\cms\core\utility\generalutility;     use typo3\cms\fluid\viewhelpers\uri\imageviewhelper;     use typo3\cms\core\resource\fileinterface;     use typo3\cms\extbase\domain\model\abstractfilefolder;      class externalimageviewhelper extends \typo3\cms\fluid\viewhelpers\uri\imageviewhelper   {      const upload_directory = 'upload';     const temp_prefix = 'mwxx';      /**     * resourcefactory     *     * @var \typo3\cms\core\resource\resourcefactory     * @inject     */     protected $resourcefactory = null;      /**     * resizes given image (if required) , renders respective img tag     *      * @see https://docs.typo3.org/typo3cms/typoscriptreference/contentobjects/image/     *     * @param string                           $src                path file, combined fal identifier or uid (integer). if $treatidasreference set, integer considered uid of sys_file_reference record. if got fal object, consider using $image parameter instead     * @param string                           $width              width of image. can numeric value representing fixed width of image in pixels. can perform simple calculations adding "m" or "c" value. see imgresource.width possible options.     * @param string                           $height             height of image. can numeric value representing fixed height of image in pixels. can perform simple calculations adding "m" or "c" value. see imgresource.width possible options.     * @param integer                          $minwidth           minimum width of image     * @param integer                          $minheight          minimum height of image     * @param integer                          $maxwidth           maximum width of image     * @param integer                          $maxheight          maximum height of image     * @param boolean                          $treatidasreference given src argument sys_file_reference record     * @param fileinterface|abstractfilefolder $image              fal object     *     * @return string     * @throws \exception    * @throws \typo3\cms\core\resource\exception\insufficientfolderaccesspermissionsexception     * @throws \typo3\cms\core\resource\exception\insufficientfolderwritepermissionsexception     * @throws \typo3\cms\fluid\core\viewhelper\exception     */     public function render($src = null, $image = null, $width = null, $height = null, $minwidth = null, $minheight = null, $maxwidth = null, $maxheight = null, $treatidasreference = false)     {     if (filter_var($src, filter_validate_url)) {       $storage = $this->resourcefactory->getdefaultstorage();       if (!$storage->hasfolder(self::upload_directory)) {         $storage->createfolder(self::upload_directory);       }       if (file_exists('fileadmin/upload/'.basename(basename($src)))) {           #echo "die datei $filename existiert";            $src         = 'fileadmin/upload/'.basename(basename($src));       }       else {           $externalfile = generalutility::geturl($src);           if ($externalfile) {             $tempfilename = tempnam(sys_get_temp_dir(), self::temp_prefix);             $handle       = fopen($tempfilename, "w");             fwrite($handle, $externalfile);             fclose($handle);              $uploadfolder = $storage->getfolder(self::upload_directory);                 #echo "die datei $filename existiert nicht";                 $file         = $uploadfolder->addfile($tempfilename, basename(basename($src)), 'changename');                 $src          = $file->getpublicurl();                 #unlink($tempfilename);            } else {             throw new \exception(sprintf('external url % cannot accessed.', $src), 1473233519);           }       }      }     return parent::render($src, $image, $width, $height, $minwidth, $minheight, $maxwidth, $maxheight, $treatidasreference);     }       }

the viewhelpers not public api meant extensible custom viewhelpers!

the problem facing after 1st call, viewhelpers compiled , method renderstatic used don't override.

the best solution copy code of parent class , extend abstractviewhelper or abstracttagbasedviewhelper


-

Comments

Post a Comment

Popular posts from this blog

serialization - Convert Any type in scala to Array[Byte] and back -

i have following question: i have variable value in program declared value. i want convert value byte array.. how can serialize byte array , back? found examples related other types such double or int, not any. this should need. it's pretty similar how 1 in java. import java.io.{bytearrayinputstream, bytearrayoutputstream, objectinputstream, objectoutputstream} object serialization extends app { def serialise(value: any): array[byte] = { val stream: bytearrayoutputstream = new bytearrayoutputstream() val oos = new objectoutputstream(stream) oos.writeobject(value) oos.close stream.tobytearray } def deserialise(bytes: array[byte]): = { val ois = new objectinputstream(new bytearrayinputstream(bytes)) val value = ois.readobject ois.close value } println(deserialise(serialise("my test"))) println(deserialise(serialise(list(1)))) println(deserialise(serialise(map(1 -> 2)))) println(deserialise(seri
Read more

matplotlib support failed in PyCharm on OSX -

any idea how fix ? how can debug might problem ? not seem : https://youtrack.jetbrains.com/issue/py-15520 i in console: python 2.6.9 (unknown, jul 14 2015, 19:46:31) [gcc 4.2.1 compatible apple llvm 6.0 (clang-600.0.39)] on darwin >>> import matplotlib.pyplot plt matplotlib support failed the backend : >>> import matplotlib >>> print(matplotlib.rcparams['backend']) macosx
Read more

python - Matplotlib: TypeError: 'AxesSubplot' object is not callable -

i new programming please pardon me if rookie mistake. i writing python script have defined functions create subplots of distributions. i have slider widget end user change value of variables(mu , sigma) , see effect on distribution. here's code import numpy np print np.__version__ import scipy print scipy.__version__ scipy.stats import norm, lognorm, uniform import matplotlib print matplotlib.__version__ import matplotlib.pyplot plt matplotlib.widgets import slider, button, radiobuttons, checkbuttons #####calculating mean , standard deviation##### global mu_a1 mu_a1 = 1 global mu_b1 mu_b1 = 10 global mu_c1 mu_c1 = -13 global sigma_a1 sigma_a1 = 0.14 global sigma_b1 sigma_b1 = 1.16 global sigma_c1 sigma_c1 = 2.87 mu_x01 = -11 sigma_x01 = 1.9 #####_____##### #####generating random data##### a1 = 0.75*mu_a1 + (1.25 - 0.75)*sigma_a1*np.random.sample(10000) b1 = 8*mu_b1 + (12 - 8)*sigma_b1*np.random.sample(10000) c1 = -12*mu_c1 + 2*sigma_c1*np.random.sample(10000)
Read more