[wp-hackers] using user_has_cap filter

[Steve Taylor]

John, many thanks, that was exactly what I needed.

Steve


2009/10/27 John Blackbourn <johnbillion+wp at gmail.com>:
> $caps is an array containing the actual required capability (or
> capabilities) for the current action. The best way to explain this is
> by examples.
>
> If you call current_user_can('delete_user',2) then the required
> capability is delete_users not delete_user. $caps will contain
> 'delete_users'.
>
> If you call current_user_can('edit_post',4) and post 4 doesn't belong
> to you then $caps will contain several elements such as 'edit_posts',
> 'edit_others_posts' and maybe more depending on the post status.
>
> In the two plugins I've written that filter user_has_cap, I've found
> no need to use $caps at all so don't worry about it too much. Take a
> look at map_meta_cap() which is in wp-includes/capabilities.php for
> more info.
>
> $args[0] is the required capability for the current_user_can() call.
> Eg. current_user_can('edit_posts') will mean $args[0] is 'edit_posts'.
>
> $args[1] is the current user ID.
>
> $args[2] will be the value of the optional second parameter in
> current_user_can(). Eg current_user_can('edit_post',5) will give us
> '5' in $args[2].
>
> HTH!
>
> John.
>
> 2009/10/27 Steve Taylor <steve at sltaylor.co.uk>:
>> I'm almost there with comprehending the user_has_cap filter, but I
>> just need some clarification. If I add a filter like this:
>>
>> add_filter( 'user_has_cap', 'my_has_cap', 0, 3 );
>>
>> And then this is my callback function:
>>
>> function lockDeletion( $allcaps, $caps, $args ) {
>>    [whatever]
>> }
>>
>> As far as I can tell:
>>
>> $allcaps is an array with capabilities for keys and boolean values
>>
>> $caps is ????
>>
>> $args are the extra arguments - post ID, etc. But what is $args[0],
>> what is $args[1], etc. ????
>>
>> thanks,
>>
>> Steve Taylor
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