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Cant render extrafield in category item view

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Artonezero Limited
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8 years 7 months ago #157527 by Artonezero Limited

Cant render extrafield in category item view was created by Artonezero Limited

Hi - I'm trying to create a simple table view in category items including the title and some, but not all of the extra fields as part of the table row for each K2 article.

I've tried many solutions to display 2 of 4 extra fields category_item.php but every time i get the following :

Trying to get property of non-object

Extra field is called Length and Alias is Length

I add the following into category_item.php inside my template folder ( its int he correct place as the rest of the page is rendering correctly):

$this->item->extra_fields->Length->value;

also tried:

//convertArray to use ids as key
$extrafields = array();
foreach($this->item->extra_fields as $item)
{    
$extrafields[$item->id] = $item->value;
}   
?>
// Render a specific extrafield
<td>
	<?php echo $extrafields[1]; ?>	 
</td>
<td>
	<?php echo $extrafields[4]; ?>
</td>

This time the error is

Invalid argument supplied for foreach().... Undefined offset:1.... Undefined offset:4....

Has it changed since 2.7.1 or something else i need to add / change?

I've loooked at github.com/kricore/Advanced-templating-with-K2/blob/master/_inc/cheatsheet.php#L104-L109

and tried various other methods seen in forum answers, but always get this error message and no output. there is a value inside the
Any help appreciated.

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Krikor Boghossian
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8 years 7 months ago #157536 by Krikor Boghossian

Replied by Krikor Boghossian on topic Cant render extrafield in category item view

$this->item->extra_fields->Length->value;

should work.

Make sure that it is length and not Length.

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Artonezero Limited
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8 years 7 months ago #157539 by Artonezero Limited

Replied by Artonezero Limited on topic Cant render extrafield in category item view

Hi Krikor,

Thansk for replying quickly. Nothing is output in the table. Here's the category_item.php in full, maybe i've removed something crucial?

// no direct access
<?php defined('_JEXEC') or die;

// Define default image size (do not change)
K2HelperUtilities::setDefaultImage($this->item, 'itemlist', $this->params);

?>

<!-- Start K2 Item Layout -->
	

	  <?php if($this->item->params->get('catItemTitle')): ?>
	  <!-- Item title -->
	  <td class="catItemTitle">

	  	<?php if ($this->item->params->get('catItemTitleLinked')): ?>
			<a href="<?php echo $this->item->link; ?>">
	  		<?php echo $this->item->title; ?>
	  	</a>
	  	<?php else: ?>
	  	<?php echo $this->item->title; ?>
	  	<?php endif; ?>

	  	<?php if($this->item->params->get('catItemFeaturedNotice') && $this->item->featured): ?>
	  	<!-- Featured flag -->
	  	<span>
		  	<sup>
		  		<?php echo JText::_('K2_FEATURED'); ?>
		  	</sup>
	  	</span>
	  	<?php endif; ?>
	  </td>
	  <?php endif; ?>

<td>
	<?php echo $this->item->extra_fields->Length->value; ?>	 
</td>
<td>
	<?php echo $this->item->extra_fields->Weight->value; ?>	
</td>
<?php if($this->item->params->get('catItemIntroText')): ?>
	  <!-- Summary -->
	  <td>
	  	<?php echo $this->item->introtext; ?>
	  </td>
<?php endif; ?>
<!-- End K2 Item Layout -->

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Artonezero Limited
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8 years 7 months ago #157541 by Artonezero Limited

Replied by Artonezero Limited on topic Cant render extrafield in category item view

I also tried renaming the alias's to lowercase and referneced them correctly in lowercase in the code too. Also tried different fields and still no output. error message is:
Trying to get property of non-object

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Krikor Boghossian
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8 years 7 months ago #157543 by Krikor Boghossian

Replied by Krikor Boghossian on topic Cant render extrafield in category item view

What does this code produce?

<?php var_dump($this->item->extra_fields); ?>

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Artonezero Limited
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8 years 7 months ago #157545 by Artonezero Limited

Replied by Artonezero Limited on topic Cant render extrafield in category item view

Here's the output:

string(411) "[{"id":"1","value":"10' 3\" - 3.11m"},{"id":"2","value":"4' 0\" - 1.22m"},{"id":"3","value":"-"},{"id":"4","value":"45"},{"id":"5","value":"54 sq ft - 5.2 sq m"},{"id":"6","value":"150-220 hours"},{"id":"7","value":["Suggested Hardware Lists","#","same"]},{"id":"8","value":["Buy the plan","#","same"]},{"id":"9","value":["Download a study plan","#","same"]},{"id":"10","value":["Buy a study plan","#","same"]}]"

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Artonezero Limited
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8 years 7 months ago #157546 by Artonezero Limited

Replied by Artonezero Limited on topic Cant render extrafield in category item view

If i add that line of code to the item.php file i get the following:

array(10) { [0]=> object(stdClass)#605 (8) { ["id"]=> string(1) "1" ["name"]=> string(6) "Length" ["value"]=> string(14) "10' 3" - 3.11m" ["type"]=> string(9) "textfield" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "1" ["alias"]=> string(6) "length" } [1]=> object(stdClass)#604 (8) { ["id"]=> string(1) "2" ["name"]=> string(4) "Beam" ["value"]=> string(13) "4' 0" - 1.22m" ["type"]=> string(9) "textfield" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "2" ["alias"]=> string(4) "Beam" } [2]=> object(stdClass)#651 (8) { ["id"]=> string(1) "3" ["name"]=> string(5) "Draft" ["value"]=> string(1) "-" ["type"]=> string(9) "textfield" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "3" ["alias"]=> string(5) "Draft" } [3]=> object(stdClass)#652 (8) { ["id"]=> string(1) "4" ["name"]=> string(11) "Weight (kg)" ["value"]=> string(2) "45" ["type"]=> string(9) "textfield" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "4" ["alias"]=> string(8) "weightkg" } [4]=> object(stdClass)#653 (8) { ["id"]=> string(1) "5" ["name"]=> string(9) "Sail Area" ["value"]=> string(19) "54 sq ft - 5.2 sq m" ["type"]=> string(9) "textfield" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "5" ["alias"]=> string(8) "SailArea" } [5]=> object(stdClass)#654 (8) { ["id"]=> string(1) "6" ["name"]=> string(24) "Time to build (estimate)" ["value"]=> string(13) "150-220 hours" ["type"]=> string(9) "textfield" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "6" ["alias"]=> string(19) "Timetobuildestimate" } [6]=> object(stdClass)#655 (11) { ["id"]=> string(1) "7" ["name"]=> string(24) "Suggested Hardware Lists" ["value"]=> string(41) "Suggested Hardware Lists" ["type"]=> string(4) "link" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "7" ["url"]=> string(1) "#" ["text"]=> string(24) "Suggested Hardware Lists" ["attributes"]=> string(0) "" ["alias"]=> string(21) "SuggstedHardwareLists" } [7]=> object(stdClass)#656 (11) { ["id"]=> string(1) "8" ["name"]=> string(12) "Buy the plan" ["value"]=> string(29) "Buy the plan" ["type"]=> string(4) "link" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "8" ["url"]=> string(1) "#" ["text"]=> string(12) "Buy the plan" ["attributes"]=> string(0) "" ["alias"]=> string(10) "Buytheplan" } [8]=> object(stdClass)#657 (11) { ["id"]=> string(1) "9" ["name"]=> string(21) "Download a study plan" ["value"]=> string(38) "Download a study plan" ["type"]=> string(4) "link" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(1) "9" ["url"]=> string(1) "#" ["text"]=> string(21) "Download a study plan" ["attributes"]=> string(0) "" ["alias"]=> string(18) "Downloadastudyplan" } [9]=> object(stdClass)#658 (11) { ["id"]=> string(2) "10" ["name"]=> string(16) "Buy a study plan" ["value"]=> string(33) "Buy a study plan" ["type"]=> string(4) "link" ["group"]=> string(1) "1" ["published"]=> string(1) "1" ["ordering"]=> string(2) "10" ["url"]=> string(1) "#" ["text"]=> string(16) "Buy a study plan" ["attributes"]=> string(0) "" ["alias"]=> string(13) "Buyastudyplan" } }

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Krikor Boghossian
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8 years 7 months ago #157566 by Krikor Boghossian

Replied by Krikor Boghossian on topic Cant render extrafield in category item view

The object is correct in the item, but not in the category_item.php
The alias is not present.
The alias is present in the category as well.

I assume you are using K2's latest version. Are you using any other K2 related extensions?

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Artonezero Limited
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8 years 7 months ago #157577 by Artonezero Limited

Replied by Artonezero Limited on topic Cant render extrafield in category item view

Yes latest i believe - 2.7.1 - i can try reinstalling?

No other extensions on the entire site. Just Joomla a basic custom template and K2 presently.

It's a staging / development site.

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Krikor Boghossian
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8 years 7 months ago #157582 by Krikor Boghossian

Replied by Krikor Boghossian on topic Cant render extrafield in category item view

Can you try the DEV version?
github.com/getk2/k2

Let me know how it went.

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Artonezero Limited
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8 years 7 months ago #157585 by Artonezero Limited

Replied by Artonezero Limited on topic Cant render extrafield in category item view

installed from zip as normal.

same errors. Dump below:

string(411) "[{"id":"1","value":"10' 3\" - 3.11m"},{"id":"2","value":"4' 0\" - 1.22m"},{"id":"3","value":"-"},{"id":"4","value":"45"},{"id":"5","value":"54 sq ft - 5.2 sq m"},{"id":"6","value":"150-220 hours"},{"id":"7","value":["Suggested Hardware Lists","#","same"]},{"id":"8","value":["Buy the plan","#","same"]},{"id":"9","value":["Download a study plan","#","same"]},{"id":"10","value":["Buy a study plan","#","same"]}]"

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Krikor Boghossian
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8 years 7 months ago #157594 by Krikor Boghossian

Replied by Krikor Boghossian on topic Cant render extrafield in category item view

It should be an Array and not a string.
You can use json_encode() php.net/manual/en/function.json-decode.php in order to convert it into an array so you can directly print data based on the id's position.

Are you using the default template or an override?

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Artonezero Limited
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8 years 7 months ago #157604 by Artonezero Limited

Replied by Artonezero Limited on topic Cant render extrafield in category item view

Worked, many thanks!

Here's the code for reference:

<td>
			<?php 
			//json_decode the extra_fields string 
			$json = json_decode($this->item->extra_fields); 
			
			// print Length if exists
			if($json[0]!=''): print $json[0]->value; 
	
			endif;?>	 
		</td>
        
		<td>&nbsp;&nbsp;&nbsp;&nbsp;
			<?php 
			
			// print Weight if exists
			if($json[3]!=''): print $json[3]->value; 
	
			endif; ?>	
		</td>

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Krikor Boghossian
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8 years 7 months ago #157612 by Krikor Boghossian

Replied by Krikor Boghossian on topic Cant render extrafield in category item view

Nice to be of assistance :)

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