July 25, 2008 05:44pm pdt

1. Jester_48 44,760
2. dosth 34,650
3. strobbe 8,750
4. wonkotsane 8,100
5. ravenpl 5,500
6. Fahdmurt... 5,150
6. routinet 5,150
8. Squinky 5,000
9. docblue 4,520
10. logudotcom 4,500
11. nexusnation 4,350
12. hielo 4,000
13. GreenGho... 3,500
14. syedasim... 3,400
15. 4e4en 2,500

1. Jester_48 44,760
2. dosth 34,650
3. singleton 24,525
4. MasonWolf 12,500
5. Fahdmurt... 10,000
6. strobbe 8,750
7. wonkotsane 8,100
8. ravenpl 5,500
9. routinet 5,150
10. Squinky 5,000
11. docblue 4,520
12. logudotcom 4,500
13. nexusnation 4,350
14. stuboo 4,000
14. hielo 4,000

05.10.2008 at 11:20AM PDT, ID: 23391908

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3.0

How to add Meta-Data on Plugin Activation

Zones: WordPress, PHP Scripting Language, Plug Ins

Tags: WordPress, 2.5

I'm working on a plugin for WordPress and I need a way to do the following on activating the plugin:

-Pick only posts that have either "price" or "pli" set as meta data keys
-Add another meta key "isproduct" to those posts

Here's the code I'm working with, but it doesn't seem to work. Does anyone have any ideas on what to do?

         
           
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             register_activation_hook(__FILE__, 'mpm_activation');
 
function mpm_activation(){
  global $post;
   $querystr = "
    SELECT wposts.* 
    FROM $wpdb->posts wposts, $wpdb->postmeta wpostmeta
    WHERE wposts.ID = wpostmeta.post_id 
    AND wpostmeta.meta_key = 'price'
    OR  wpostmeta.meta_key = 'pli'
 ";
 
 $pageposts = $wpdb->get_results($querystr, OBJECT);
 
if ($pageposts): foreach ($pageposts as $post): setup_postdata($post); 
  delete_post_meta($id, 'isproduct');
  add_post_meta($id, 'isproduct', '1');
  
  endforeach;
  endif;
}
           
         

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Question Stats

Zone: Web Development

Question Asked By: johnkolbert

Solution Provided By: Jester_48

Participating Experts: 1

Solution Grade: B

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