Call to a member function get() on null

Phoca PDF - creating PDF documents in Joomla! CMS
kgvweb
Phoca Member
Phoca Member
Posts: 10
Joined: 08 Jul 2018, 16:46

Call to a member function get() on null

Post by kgvweb »

Hello.

I don't get it... Installed PhocaPDF straight to instruction from https://www.phoca.cz/documents/47-phoca ... joomla-3-3...

I tried to install with System Plugin an tried to code manually. I copied the code to overwrite directory but there doesn't seem to happen something.

I copied the code to mytemplate/html/com_content/article/default.php. This is the only file, where changes can be seen in frontend (Tested it with some text - simply inserted "Test" to li-element -> This "Test" will appear in frontend). When i insert the code from the instructions:

Code: Select all

$phocaPDF = false;
if (JPluginHelper::isEnabled('phocapdf', 'content')) {
	include_once(JPATH_ADMINISTRATOR.'/components/com_phocapdf/helpers/phocapdf.php');
	$phocaPDF = PhocaPDFHelper::getPhocaPDFContentIcon($displayData['item'], $displayData['params']);
} 
and

Code: Select all

 || $phocaPDF
and furhtermore

Code: Select all

<?php echo $phocaPDF; ?>
i get a "call to member function" error.... With commenting I found, that the error comes when line

Code: Select all

$phocaPDF = PhocaPDFHelper::getPhocaPDFContentIcon($displayData['item'], $displayData['params']);
is parsed.

My Joomla: 3.8.10
My PhocaPDF Component: 3.0.5
My PhocaPDF Content: 3.0.5
My PHP: 7.2

What is wrong with me? (or my code... :) )

Tags:
User avatar
Jan
Phoca Hero
Phoca Hero
Posts: 47810
Joined: 10 Nov 2007, 18:23
Location: Czech Republic
Contact:

Re: Call to a member function get() on null

Post by Jan »

Which error do you get exactly?

Jan
If you find Phoca extensions useful, please support the project
kgvweb
Phoca Member
Phoca Member
Posts: 10
Joined: 08 Jul 2018, 16:46

Re: Call to a member function get() on null

Post by kgvweb »

Hi Jan,

thanks for your reply.

I get the "0 - Call to a member function get() on null" error message with no more comment.

When I go step-by-step then I'll found, that the error occurs when line with

Code: Select all

$phocaPDF = PhocaPDFHelper::getPhocaPDFContentIcon($displayData['item'], $displayData['params']);
is parsed.

Heiko.
User avatar
Jan
Phoca Hero
Phoca Hero
Posts: 47810
Joined: 10 Nov 2007, 18:23
Location: Czech Republic
Contact:

Re: Call to a member function get() on null

Post by Jan »

But do you get exact error message including all the lines (php error displayed + debug mode, should display all the functions called before this error)

Jan
If you find Phoca extensions useful, please support the project
kgvweb
Phoca Member
Phoca Member
Posts: 10
Joined: 08 Jul 2018, 16:46

Re: Call to a member function get() on null

Post by kgvweb »

Hi,

I'm sorry for no more answering. The problem exists right now. When I turn on the debug-mode, I get the following error message:

Code: Select all

 Call to a member function get() on null
/mnt/web105/b1/68/52400668/htdocs/joomla_01/administrator/components/com_phocapdf/helpers/phocapdf.php:91
Call stack
# 	Function 	Location
1 	() 	JROOT/administrator/components/com_phocapdf/helpers/phocapdf.php:91
2 	PhocaPDFHelper::getPhocaPDFContentIcon() 	JROOT/templates/joomspirit_123/html/com_content/article/default.php:15
3 	include() 	JROOT/libraries/src/MVC/View/HtmlView.php:695
4 	Joomla\CMS\MVC\View\HtmlView->loadTemplate() 	JROOT/libraries/src/MVC/View/HtmlView.php:230
5 	Joomla\CMS\MVC\View\HtmlView->display() 	JROOT/components/com_content/views/article/view.html.php:210
6 	ContentViewArticle->display() 	JROOT/libraries/src/MVC/Controller/BaseController.php:672
7 	Joomla\CMS\MVC\Controller\BaseController->display() 	JROOT/components/com_content/controller.php:113
8 	ContentController->display() 	JROOT/libraries/src/MVC/Controller/BaseController.php:710
9 	Joomla\CMS\MVC\Controller\BaseController->execute() 	JROOT/components/com_content/content.php:43
10 	require_once() 	JROOT/libraries/src/Component/ComponentHelper.php:382
11 	Joomla\CMS\Component\ComponentHelper::executeComponent() 	JROOT/libraries/src/Component/ComponentHelper.php:357
12 	Joomla\CMS\Component\ComponentHelper::renderComponent() 	JROOT/libraries/src/Application/SiteApplication.php:194
13 	Joomla\CMS\Application\SiteApplication->dispatch() 	JROOT/libraries/src/Application/SiteApplication.php:233
14 	Joomla\CMS\Application\SiteApplication->doExecute() 	JROOT/libraries/src/Application/CMSApplication.php:195
15 	Joomla\CMS\Application\CMSApplication->execute() 	JROOT/index.php:49 
Could this help to solve the problem?

Thank you for helping...
kgvweb
Phoca Member
Phoca Member
Posts: 10
Joined: 08 Jul 2018, 16:46

Re: Call to a member function get() on null

Post by kgvweb »

Next hint: It doesn't seem to change anything either if I add the code from manual to layouts/joomla/content/icons.php or templates/your_template/html/layouts/com_content/icons.php. Even changing the filename "icons.php" to "this_sucks.php" doesn't take any effect...

templates/your_template/html/layouts/com_content/icons.php (your_template replaced by joomspirit123) doesn't even exist... Icons.php is found at templates/your_template/html/layouts/joomla/content instead.

Changes only will be show in frontend when editing mytemplate/html/com_content/article/default.php. Is that correct?
User avatar
Jan
Phoca Hero
Phoca Hero
Posts: 47810
Joined: 10 Nov 2007, 18:23
Location: Czech Republic
Contact:

Re: Call to a member function get() on null

Post by Jan »

Hi, in this file:
JROOT/templates/joomspirit_123/html/com_content/article/default.php:15

the function must get parameters:

Code: Select all

getPhocaPDFContentIcon($item, $params, $attribs = array()) {
at least two parameters: $item, $params

Does it include both?

Jan
If you find Phoca extensions useful, please support the project
kgvweb
Phoca Member
Phoca Member
Posts: 10
Joined: 08 Jul 2018, 16:46

Re: Call to a member function get() on null

Post by kgvweb »

Solved!

Icon is shown now, but not only the PDF-Icon, even a empty document icon. Both the same link.

the following code is being generated:

Code: Select all

<li class="print-icon"><a href="/index.php/aktuelles/elster?id=&amp;tmpl=component&amp;format=pdf" onclick="window.open(this.href,'win2','status=no,toolbar=no,scrollbars=yes,titlebar=no,menubar=no,resizable=yes,width=640,height=480,directories=no,location=no'); return false;" title="PDF" rel="nofollow"><span class="glyphicon glyphicon-file icon-file"></span><img src="/media/com_phocapdf/images/pdf_button.png" alt="PDF"></a></li>
not enough problems: furthermore there is only an empty PDF to be generated, which seems to be damaged (not to open with adobe reader, browser displays empty pdf). For this problem I search the solution in any other threads.
User avatar
Jan
Phoca Hero
Phoca Hero
Posts: 47810
Joined: 10 Nov 2007, 18:23
Location: Czech Republic
Contact:

Re: Call to a member function get() on null

Post by Jan »

Ok
If you find Phoca extensions useful, please support the project
kgvweb
Phoca Member
Phoca Member
Posts: 10
Joined: 08 Jul 2018, 16:46

Re: Call to a member function get() on null

Post by kgvweb »

Thank you so much for helping me, simply syntax error with my code after four months of searching -.-

I inserted the snippet in "default.php" of template override with following substitution:

Code: Select all

$phocaPDF = PhocaPDFHelper::getPhocaPDFContentIcon($this->item, $params, array(), true);
instead of

Code: Select all

$phocaPDF = PhocaPDFHelper::getPhocaPDFContentIcon($item, $params, $attribs=array());
in line 24 and everything works great. The only thing now is, that the icon is shown as "double icon". but this doesn't matters any more...

Thanks for your great support!!!! Topic can be marked as "solved".
Post Reply