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#16 2012-07-26 23:50:59

geoffschultz
Member
Marlborough, MA, USA
2012-07-01
148

Re: [resolved] How to use plugin "Add <head> Element"?

I need to ask a stupid PHP question, but I'm a retired programmer who has just recently picked up PHP.

If I try to access a IPTC field which isn't set (for example)

Code:

$country_code = $jpegMD->getTag('iptc.Country/Primary Location Code')->getValue()

I get:

Fatal Error: Call to a member function getValue() on a non-object

How do I check to see if 'iptc.Country/Primary Location Code' exists before calling getValue?

-- Geoff

Last edited by geoffschultz (2012-07-26 23:52:33)

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#17 2012-07-27 00:05:23

mistic100
Former Piwigo Team
Lyon (FR)
2008-09-27
3277

Re: [resolved] How to use plugin "Add <head> Element"?

depends on how getTag() method is defined but you can try

Code:

if ($jpegMD->getTag('iptc.Country/Primary Location Code'))
{
    $country_code = $jpegMD->getTag('iptc.Country/Primary Location Code')->getValue()
}
else
{
    $country_code = null;
}

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#18 2012-07-27 00:29:30

geoffschultz
Member
Marlborough, MA, USA
2012-07-01
148

Re: [resolved] How to use plugin "Add <head> Element"?

That worked!  Thank you very much.  I could swear that I tried that or isset(), but it didn't work.  Anyhow, I'm off and running.  Thanks again.

-- Geoff

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#19 2012-07-27 00:34:16

mistic100
Former Piwigo Team
Lyon (FR)
2008-09-27
3277

Re: [resolved] How to use plugin "Add <head> Element"?

yeah isset() is for variables, not function returned values

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#20 2012-07-28 19:41:29

ddtddt
Piwigo Team
Quetigny - France
2007-07-27
7201

Re: [resolved] How to use plugin "Add <head> Element"?

Hi :-)

geoffschultz wrote:

I want to add information to the <head> section of image pages.  For example, in my current (non-piwigo) web site, I output information like:

<meta name="geo.position" content="-112.093667; 27.188833"/>

I see in a other topic

geoffschultz wrote:

<meta name="keywords" content="BCS, Isla San Marcos, MEX, Mexico"/>
<meta name="description" content="Gypsum Mine, Mexico, BCS, Isla San Marcos, MEX, "/>

You want additional what is, or in place

geoffschultz wrote:

<meta name="geo.region" content="MEX-BCS"/>
<meta name="geo.placename" content="Isla San Marcos, BCS, Mexico"/>

by FTP in folder PersonalPlugin create file metaperso.tpl with

<meta name="geo.region" content="{$metadata.1.lines.country_code}"/>
<meta name="geo.placename" content="{$metadata.1.lines.country_name}"/>

go to Administration -> plugins -> localFile Editor -> tap personalplugin
paste

define('PIPTC_DIR' , basename(dirname(__FILE__)));
define('PIPTC_PATH' , PHPWG_PLUGINS_PATH . PIPTC_DIR . '/');

global $template,$conf;

add_event_handler('loc_begin_page_header', 'AHEgeoffschultz',20 );

function AHEgeoffschultz()
{
global $template, $page;
    if ( !empty($page['image_id']) )   
  {
    $template->set_filename('META_PERSO', realpath(PIPTC_PATH.'metaperso.tpl'));   
    $template->append('head_elements', $template->parse('META_PERSO', true));
   }
}

active personal plugin

(this works if IPTC is good on local config)


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#21 2012-07-29 00:17:39

geoffschultz
Member
Marlborough, MA, USA
2012-07-01
148

Re: [resolved] How to use plugin "Add <head> Element"?

ddtddt,

Thank for yet another solution to this problem.  I really didn't want to have multiple threads about the same thing, but both threads ended up discussing the same thing.

Anyhow, at this point I have a rather lengthy PersonalPlugin which generates the headers that I need.  I'm generating the meta tags via code like:

Code:

$template->append('head_elements', '<meta name="geo.region" content="' . $place .'">' );

where $place is the string that I generated in other code.

-- Geoff

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#22 2012-07-29 08:34:09

ddtddt
Piwigo Team
Quetigny - France
2007-07-27
7201

Re: [resolved] How to use plugin "Add <head> Element"?

Hi :-)

ok perfect ;-)

This topic is resolved ?


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