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in the plugins page, under each plugins' name usually there are buttons/links like "Deactivate | Edit | Settings". Recently on one of my sites the "Edit" (and "Settings") button has disappeared. I have just "Deactivate" or "Activate | Delete".

My question is - what could cause this?

I am logged in as an administrator, so I should see the buttons. I suspect that something might have vent wrong with the installation of the last plugin but I am not sure.

Is there some scenario when these buttons get disabled (hidden) or do I have a bug / error?

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1 Answer 1

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Edit buttons display only when the necessary file permissions are acquired by PHP.

http://core.trac.wordpress.org/browser/tags/3.3.1/wp-admin/includes/class-wp-plugins-list-table.php#L380

is_writable(WP_PLUGIN_DIR . '/' . $plugin_file)

current_user_can('edit_plugins') will always return false if the DISALLOW_FILE_EDIT flag is set to true (recommended) in the configuration, no matter if you're the administrator or not.

http://core.trac.wordpress.org/browser/tags/3.3.1/wp-includes/capabilities.php#L1118

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Hey, thanks for your answer. It seems that is_writable really sees the files as non-writable. I am now checking with the admins... –  Priednis Mar 14 '12 at 18:58
    
@Priednis Check this for further information codex.wordpress.org/Changing_File_Permissions Also, I highly discourage the use of the editor altogether: codeseekah.com/2012/02/19/… –  soulseekah Mar 14 '12 at 23:55
    
Many thanks for your responses. I managed to get the plugin directories writtable and it enabled the Edit links but my plugin is still not working. I'll check the Changing_File_Permissions link and ask another question if needed. Regarding the editor - I don't need the editor and I don't use it, it (the missing buttons) was just a sign that something was wrong... –  Priednis Mar 15 '12 at 19:09
    
Does you plugin work though? Can you pastebin it all so we can see if there's something wrong? –  soulseekah Mar 16 '12 at 6:22
    
Am a bit [censored] about spending so much time on this, but turns out my server is running PHP4 and the plugin was using __construct() style constructors which are not yet recognized on this version of PHP, so I had to do somehing like function ClassName() { $this->__construct(); } to get it working and now it seems ok... –  Priednis Mar 16 '12 at 15:50

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