WordPress Portable Database Caching Class

So here’s a little library/class that I wrote to make caching a little easier from project to project. WordPress requires a plugin like W3 Total Cache to be in place for “persistent” caching to be available … that is, caches of data that survive longer than the current page view. But sometimes when you’re building a complex custom project there are some queries you know could be safely cached regardless of the global caching setup. With this class you can build it right into your theme or plugin.

WordPress Hack: Turning Off BuddyPress Notifications By Default

By default BuddyPress has all sorts of email notifications turned on. This is great unless you have a big site with lots of activity and site-wide discussions. Then new users start getting pinged repeatedly on discussions they don’t want to follow or don’t even know they are apart of! So you may want BuddyPress to turn the notifications off by default. But there’s no clear way to do this in the admin. Well, here’s the golden function.

add_action('bp_core_signup_user','bp_set_notification_default',100,1);
  function bp_set_notification_default($user_id) {
    $keys = array('notification_activity_new_mention','notification_activity_new_reply','notification_friends_friendship_accepted','notification_friends_friendship_request','notification_groups_admin_promotion','notification_groups_group_updated','notification_groups_invite','notification_groups_membership_request','notification_messages_new_message','notification_messages_new_notice');
    foreach($keys as $key) {
      update_user_meta($user_id,$key,'no');
    }
}

Please note that this function is hooked to bp_core_user_signup which means existing users still have to manually turn off notifications. But you could easily run this function on an array of user_ids to change the defaults for existing users.

BuddyPress and WordPress 3.2 Upgrade Issues

Just in case anyone else had this issue. I upgraded several WordPress/BuddyPress installations to version 3.2 and found that my Dashboard menus no longer would expand and collapse as usual. The problem I discovered was some sort of conflict in the jQuery Easing plugin that ships with the BuddyPress default theme and the version of jQuery running in WordPress (now 1.6+). I’m not a jQuery pro so I didn’t bother trying to track down the bug precisely. But I found the problem was fixed by going into my theme’s _inc/global.js file and commenting out the block of minified javascript below:

/* jQuery Easing Plugin, v1.3 - https://gsgd.co.uk/sandbox/jquery/easing/ */
jQuery.easing.jswing=jQuery.easing.swing;jQuery.extend(jQuery.easing,{def:"easeOutQuad",swing:function(e,f,a,h,g){return jQuery.easing[jQuery.easing.def](e,f,a,h,g)},easeInQuad:function(e,f,a,h,g){return h*(f/=g)*f+a},easeOutQuad:function(e,f,a,h,g){return -h*(f/=g)*(f-2)+a},easeInOutQuad:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f+a}return -h/2*((--f)*(f-2)-1)+a},easeInCubic:function(e,f,a,h,g){return h*(f/=g)*f*f+a},easeOutCubic:function(e,f,a,h,g){return h*((f=f/g-1)*f*f+1)+a},easeInOutCubic:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f*f+a}return h/2*((f-=2)*f*f+2)+a},easeInQuart:function(e,f,a,h,g){return h*(f/=g)*f*f*f+a},easeOutQuart:function(e,f,a,h,g){return -h*((f=f/g-1)*f*f*f-1)+a},easeInOutQuart:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f*f*f+a}return -h/2*((f-=2)*f*f*f-2)+a},easeInQuint:function(e,f,a,h,g){return h*(f/=g)*f*f*f*f+a},easeOutQuint:function(e,f,a,h,g){return h*((f=f/g-1)*f*f*f*f+1)+a},easeInOutQuint:function(e,f,a,h,g){if((f/=g/2)<1){return h/2*f*f*f*f*f+a}return h/2*((f-=2)*f*f*f*f+2)+a},easeInSine:function(e,f,a,h,g){return -h*Math.cos(f/g*(Math.PI/2))+h+a},easeOutSine:function(e,f,a,h,g){return h*Math.sin(f/g*(Math.PI/2))+a},easeInOutSine:function(e,f,a,h,g){return -h/2*(Math.cos(Math.PI*f/g)-1)+a},easeInExpo:function(e,f,a,h,g){return(f==0)?a:h*Math.pow(2,10*(f/g-1))+a},easeOutExpo:function(e,f,a,h,g){return(f==g)?a+h:h*(-Math.pow(2,-10*f/g)+1)+a},easeInOutExpo:function(e,f,a,h,g){if(f==0){return a}if(f==g){return a+h}if((f/=g/2)<1){return h/2*Math.pow(2,10*(f-1))+a}return h/2*(-Math.pow(2,-10*--f)+2)+a},easeInCirc:function(e,f,a,h,g){return -h*(Math.sqrt(1-(f/=g)*f)-1)+a},easeOutCirc:function(e,f,a,h,g){return h*Math.sqrt(1-(f=f/g-1)*f)+a},easeInOutCirc:function(e,f,a,h,g){if((f/=g/2)<1){return -h/2*(Math.sqrt(1-f*f)-1)+a}return h/2*(Math.sqrt(1-(f-=2)*f)+1)+a},easeInElastic:function(f,h,e,l,k){var i=1.70158;var j=0;var g=l;if(h==0){return e}if((h/=k)==1){return e+l}if(!j){j=k*0.3}if(g