permission based blocks?

By jasonwhat on 13 Aug 2004 at 10:25 UTC

I'd like to have some custom blocks which only show to particular user groups. Is there a way to do this? I'm using cvs version.

Comments

Sure. Just make you output de

killes@www.drop.org commented 13 August 2004 at 12:43

Sure. Just make you output depend on the permissions given to your user group (or 'role'). If there is no output returned, the block will not be displayed.

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How?

jasonwhat commented 13 August 2004 at 15:52

Sorry, but I'm not sure where I control output. I'm pretty new at this. thanks.

If you write the code for a p

killes@www.drop.org commented 16 August 2004 at 10:54

If you write the code for a php based block, Drupal expects you to return the text for the block in a variable. If this variable is empty, then no block will be output.

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could you give an example?

jasonwhat commented 17 August 2004 at 06:12

I'm not very good with php. what type of if/else statement would I use if I wanted a block to show only for say a group called "board?"
thanks

Put this inside the block def

killes@www.drop.org commented 17 August 2004 at 21:39

Put this inside the block definition (omit the php tags for Drupal 4.4.):

global $user;

$output = '';
if (in_array('board',$user->roles)) {

$output .= 'foo';
}

return $output;

Users with the board role will now see "foo" in the block.

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This works great, but I

Ian Ward commented 11 January 2005 at 18:25

This works great, but I noticed an error that is created when blocks like this are turned on, and a user tries to login to the site, but uses an incorrect username and password...the error created is this:

warning: in_array(): Wrong datatype for second argument in /xxxxx/xxxxx/includes/common.inc(1822) : eval()'d code on line 4.

I searched a bit for errors of similar type in other modules but did not find much to try and solve it...any ideas?

The line in common is the drupal_eval function:

function drupal_eval($code) {
ob_start();
print eval('?>'. $code);
$output = ob_get_contents();
ob_end_clean();
return $output;
}

cheers, ian.

User Activated Block

davidblewett commented 17 August 2004 at 19:54

Hi killes:
I'm not sure if this is the "most Drupal" way to this, but it's the first idea I had. I want to include an off-site db query in a block to the side of the main content. I only want the block to show up after the user clicks a link. Is this possible?

Off-site db queries are a bit

killes@www.drop.org commented 17 August 2004 at 21:41

Off-site db queries are a bit difficult. Search Drupal.org for more info.

Showing blocks after a user clicks a link might be possible by checking a referrer in the block function or some other tricks. There is also the adc theme that hides blocks with some JS.

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How?...

pss0ft commented 17 August 2004 at 21:14

Hi,

Just wondering. How to grant permission for blocks now? Can this be done? How to hide blocks when not logged in? With other words: hide for anonymous users? See my other posting about this.

I mean without hacking the code, but just fille in the right option. Possible already?

Grtz. Henk