joomla change HeadData

[glimbeek]

Hi,

I'm trying to dynamically change parts of an array.

This is the array:

Array ( [/components/com_jcomments/js/jcomments-v2.1.js?v=7] => text/javascript [/components/com_jcomments/libraries/joomlatune/ajax.js?v=3] => text/javascript [/media/system/js/mootools.js] => text/javascript [/media/system/js/caption.js] => text/javascript )

It's a Joomla! 1.5.x website.
The I get the array by using the following code:

$headerstuff	= $this->getHeadData();  
$scripts		= $headerstuff['scripts'];
print_r ($scripts);

I want to change parts of the array because the array is used to display the following code:

  <link rel="stylesheet" href="/components/com_jcomments/tpl/custom/style.css?v=12" type="text/css" />
  <script type="text/javascript" src="/components/com_jcomments/js/jcomments-v2.1.js?v=7"></script>
  <script type="text/javascript" src="/components/com_jcomments/libraries/joomlatune/ajax.js?v=3"></script>

  <script type="text/javascript" src="/media/system/js/mootools.js"></script>
  <script type="text/javascript" src="/media/system/js/caption.js"></script>

I want to change this into:

  <link rel="stylesheet" href="[URL unfurl="true"]http://www.mydomain.com/components/com_jcomments/tpl/custom/style.css?v=12"[/URL] type="text/css" />
  <script type="text/javascript" src="[URL unfurl="true"]http://www.mydomain.com/components/com_jcomments/js/jcomments-v2.1.js?v=7"></script>[/URL]
  <script type="text/javascript" src="[URL unfurl="true"]http://www.mydomain.com/components/com_jcomments/libraries/joomlatune/ajax.js?v=3"></script>[/URL]

  <script type="text/javascript" src="[URL unfurl="true"]http://www.mydomain.com/media/system/js/mootools.js"></script>[/URL]
  <script type="text/javascript" src="[URL unfurl="true"]http://www.mydomain.com/media/system/js/caption.js"></script>[/URL]

I've been trying several things and I found a 1001 pages that tell me how to "unset" certain bits of the array, for instance http://www.eboga.org/cms/joomla/how-to-remove-mootoolsjs-and-captionjs-from-joomla15.html. I found

http://pastebin.com/95YSxX8N

but I can't get that to work either.

I just can't figure out how to dynamically "add" the domain to the file location. I either end up over writing the "text/javascript" bit with the domain or I end up with just one edited line and all the other lines are removed from the array.

Any help or any pointers into the right direction would be greatly appreciated.

 

[jpadie]

your data structure is not straightforward. you will probably find there is a plugin for joomla to do this.

have you looked at the 'BASE' meta directive for html?

in php you would need to do this

foreach ($scripts as &$url=>$type):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;

you must then do something with the $scripts array to cause joomla to output it again. perhaps setHeadData() is the right method?

 

[glimbeek]

Hi jpadie,

Thank you for your reply.
Yes, there are most likely extensions that can do part of this.
However, because I have several different scenario's on which I want to display the right scripts these extensions are no good for to me.

And yes you are right setHeadData is the way to go:
$this->setHeadData($somevar);

you must then do something with the $scripts array to cause joomla to output it again

and that's where I am struggling.

 

[jpadie]

the conversion is using the code i suggested.

by your own statement you use setHeadData() to add $scripts back in. I believe that the right syntax would be

foreach ($this->_scripts as &$url=>$type):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;
foreach($this->_links as &$url=>$ignore):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;

you run this WITHIN the $this context and it will directly manipulate the headers that exist

 

[glimbeek]

Hi jpadie,

Just to make sure, you are referring to the code on

http://pastebin.com/95YSxX8N

?

 

[jpadie]

no idea what you're talking about.

let's recap.

in your first post you said this

The I get the array by using the following code:

$headerstuff    = $this->getHeadData();  
$scripts        = $headerstuff['scripts'];
print_r ($scripts);

I note that you obtain the $headerstuff variable within an object context that has the method getHeadData(). I assume that this is the object context that would actually contains the headers links etc. either a document or the html object.

so instead of using that code above, use the code that I posted in my previous post. this will _directly_ manipulate the holding variables within the relevant object context. that should be all you need.

 

[glimbeek]

I lost you...

Could you give me a code example because I'm unsure what to use and how to us it now.

in my index.php of my Joomla! template I "get" the scripts from the head data by using:

$headerstuff    = $this->getHeadData();  
$scripts        = $headerstuff['scripts'];

Now you tell me to drop that and use

foreach ($this->_scripts as &$url=>$type):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;
foreach($this->_links as &$url=>$ignore):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;

But how?

 

[jpadie]

how?

delete one and insert the other.

 

[glimbeek]

Hi jpadie,

I hate to sound like a complete novice, but you've lost me here:

I'm trying the following code now:

$headerstuff	= $this->getHeadData();  
foreach ($this->_scripts as &$url=>$type):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;
foreach($this->_links as &$url=>$ignore):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;
$doc->setHeadData($headerstuff);

Obviously that won't work. How do I get the $url into the right place in the array so I can use $doc->setHeadData

 

[jpadie]

exactly like I said. delete the code you had and replace with my code.

or now that you have changed things,
delete the lines shown

[s][red]$headerstuff    = $this->getHeadData();  [/red][/s]
foreach ($this->_scripts as &$url=>$type):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;
foreach($this->_links as &$url=>$ignore):
  $url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
endforeach;
[s][red]$doc->setHeadData($headerstuff);[/red][/s]

 

[glimbeek]

jpadie,

If I try that I get the following result:

Fatal error: Key element cannot be a reference in /home/adminyu5/public_html/myfolder/templates/thistemplate/index.php on line 73

I Googled the error, but I have no idea what it means.

 

[jpadie]

ok. try this then, instead

foreach ($this->_scripts as $url=>$type):
  $_url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
  unset($this->_scripts[$url];
  $_scripts[$_url] = $type;
endforeach;
foreach($this->_links as $url=>$ignore):
  $_url = '[URL unfurl="true"]http://www.mydomain.com'[/URL] . $url;
  unset($this->_links[$url];
  $_links[$_url] = $ignore;
endforeach;
$this->scripts = array_merge($this->scripts, $_scripts);
$this->_links = array_merge($this->links, $_links);

 

[glimbeek]

Hi jpadie,

Thank you for putting in the time and effort to help me out. If I try the above code (I had to add 2 closing ")" after the unset lines, otherwise it wouldn't work) I get the following errors:

Notice: Undefined property: JDocumentHTML::$scripts in index.php on line 81

Warning: array_merge() [function.array-merge]: Argument #1 is not an array in index.php on line 81

Notice: Undefined property: JDocumentHTML::$links in index.php on line 82

Notice: Undefined variable: _links in index.php on line 82

Warning: array_merge() [function.array-merge]: Argument #1 is not an array in index.php on line 82

Warning: array_merge() [function.array-merge]: Argument #2 is not an array in index.php on line 82

Warning: Invalid argument supplied for foreach() in head.php on line 195

Hopefully you can help me out.

 

[glimbeek]

With help I managed to solve it in the end:

$headerstuff =& $this->getHeadData();
$scripts =& $headerstuff['scripts'];
$nscripts = array();
$matches = array(
"mootools.js" => "

http://localhost",

"caption.js" => "

http://localhost",

);

foreach($scripts as $k => $v){
$scriptname = array_pop(explode("/", $k));
if(array_key_exists($scriptname, $matches)){
$nscripts[$matches[$scriptname].$k] = $v;
} else {
$nscripts[$k] = $v;
}
}

$headerstuff['scripts'] = $nscripts;
$this->setHeadData($headerstuff);

Thanks for your help jpadie!

 

[jpadie]

I was typing into an iPhone. The ->scripts and links should be prefixed with an underscore. ->_scripts etc