Hide Extra Fields in the front end

Deborah 10 years 7 months ago #152098

Hello.
Is there a way to hide some of my Extra Fields in the front end, or set access levels for each field?
I want to store many extra fields in the admin back end, but only have some of them published in the front end.
Is custom css the only way to go?
Thank you!

Edited 10 years 7 months ago by Deborah · Reason: additional info

Krikor Boghossian 10 years 7 months ago #152108

Yes,

You need to override K2's templates
getk2.org/documentation/tutorials/174-templating-with-k2-and-the-concepts-of-sub-templates

Then you should render these fields one by one
github.com/kricore/Advanced-templating-with-K2/blob/master/_inc/cheatsheet.php#L104-L109

And using Joomla!'s user object - docs.joomla.org/Accessing_the_current_user_object
show/ hide the extrafield.

Deborah Topic Author 10 years 7 months ago #152111

Thank you Krikor.
My ability to code is extremely limited however!
I have created a sub-template, as you advised.
I am assuming that the extra field code from the cheatsheet would be added to item.php in that sub-template?

So, how would I make the Extra Field 'old-atlas' hidden from all front end users?

if( isset( $this->item->extraFields->item-name->value ) && ( $this->item->extraFields->item-name->value !== '') ) 
{
	$this->item->extraFields->item-name->name;
	$this->item->extraFields->item-name->value;
}

Thanks for your help.

Edited 10 years 7 months ago by Deborah · Reason: typos

Krikor Boghossian 10 years 7 months ago #152122

Yes, you assumed correctly :)
You need to read the "Determining Status" section of this post.
docs.joomla.org/Accessing_the_current_user_object

Deborah Topic Author 10 years 7 months ago #152188

Hi Krikor.
Thank you for your patience.
I have read the Accessing the current user object
I don't have a very well developed understanding of, or ability to write, php so I was hoping for a little more help please.

If I have an extra field "item_name" that I only want to be visible to "Publishers", for example, how would the github cheatsheet code, the user object code and the extra field code in item.php all go together to achieve this?

UPDATE:
As the User Object seems only to function in determining whether the user is a guest or not, I assume that I will have to make all items visible by using the cheatsheet method for all viewers.
So I am looking at something like the following:

<?php if($this->item->params->get('itemExtraFields') && count($this->item->extra_fields)): ?>
	  <!-- Item extra fields -->
	  <?php $user = JFactory::getUser();
 	if ($user->guest): ?>
<?php 
	if( isset( $this->item->extraFields->EXTRAFIELDALIASHERE->value ) && ( $this->item->extraFields->EXTRAFIELDALIASHERE->value !== '') ) 
	{
		$this->item->extraFields->EXTRAFIELDALIASHERE->name;
		$this->item->extraFields->EXTRAFIELDALIASHERE->value;
	}
?>
<?php else>
<?php 
	if( isset( $this->item->extraFields->EXTRAFIELDALIASHERE->value ) && ( $this->item->extraFields->EXTRAFIELDALIASHERE->value !== '') ) 
	{
		$this->item->extraFields->EXTRAFIELDALIASHERE->name;
		$this->item->extraFields->EXTRAFIELDALIASHERE->value;
	}
?>

Can you help me organise that code so that it works please?

Many thanks

Edited 10 years 7 months ago by Deborah · Reason: update

Krikor Boghossian 10 years 7 months ago #152306

You are halfway there Deby.
The else: ?> typo I think it has already been corrected.

The user's groups can be retrieved like this:

$user_groups = $user->groups;

You can see the ids in the user groups' view.

Then using PHP's in_array() - php.net/manual/en/function.in-array.php - you can check if that user belongs to a certain usergroup.

	if (in_array( GROUP_ID, $user_groups)) {
		echo 'extrafield code here';
	}

Deborah Topic Author 10 years 7 months ago #152334

Thanks again.
I really know very little about php stuff, all the ":? > : ))" makes my eyes roll!
I have, however, managed to cobble something together after hunting around, and finding useful info in
this lively thread from around 2012

No doubt I'll have more questions...

Regards

Edited 10 years 7 months ago by Deborah · Reason: link

Krikor Boghossian 10 years 7 months ago #152369

We 'll be here :)

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