Call to a member function get() on null

[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:

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$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

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 || $phocaPDF

and furhtermore

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<?php echo $phocaPDF; ?>

i get a "call to member function" error.... With commenting I found, that the error comes when line

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$phocaPDF = PhocaPDFHelper::getPhocaPDFContentIcon($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... :) )

[Jan]

Which error do you get exactly?

Jan

[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

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

is parsed.

Heiko.

[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

[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]

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?

[Jan]

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

the function must get parameters:

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getPhocaPDFContentIcon($item, $params, $attribs = array()) {

at least two parameters: $item, $params

Does it include both?

Jan

[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:

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<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.

[Jan]

Ok

[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:

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

instead of

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$phocaPDF = PhocaPDFHelper::getPhocaPDFContentIcon($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".