I stumbled across this function by accident when I was checking why the WYSIWYG editor was not working on one of my plugins on WordPress 3.3 . You also can allow users to  upload images if the user has necessary capabilities using the editor wp_editor adds.

Read all about it on the WordPress Codex . Hope someone will find it useful.

Spoiler Alert: For the impatient, it was as simple as removing the old rules that are not setting the post type before adding the new rules

I’m going to assume that you have already familiar with Custom Post types. If you are not read http://codex.wordpress.org/Post_Types and then come back. Most important are Step 5 and Step 6. Other steps are typical for any plugin or theme using custom post types.

Step 1: Register the post type
Read more about registering custom post types at

register_post_type( 'my_class',
array(
'public' => true,
...
'has_archive' => true,
)
);

Step 2: Add rewrite tags and permalink structure

$event_structure = '/events/%year%/%monthnum%/%my_class%';
$wp_rewrite->add_rewrite_tag("%my_class%", '(.+?)', "my_class=");
$wp_rewrite->add_permastruct('my_class', $event_structure, false);

Step 3: Add post_type_link and rewrite_rules_array filters

add_filter('rewrite_rules_array', 'my_class_add_rewrite_rules');
add_filter('post_type_link', 'my_class_post_type_link', 10, 3);

Step 4: Return a proper permalink

function my_class_post_type_link($permalink, $post_id, $leavename) {
$post = get_post($post_id);

$rewritecode = array(
'%my_class%',
'%year%',
'%monthnum%'
);

if ($post->post_type == 'my_class' && '' != $permalink) {

$ptype = get_post_type_object($post->post_type);

$start = time();
$end = time();

$meta = get_post_custom($post->ID);
// This is where I store when the class starts
if (isset($meta["my_class_start"]) && isset($meta["my_class_start"][0])) {
$start = strtotime($meta["my_class_start"][0]);
}

$year = date('Y', $start);
$month = date('m', $end);

$rewritereplace = array(
($post->post_name == "")?$post->id:$post->post_name,
$year,
$month,
);
$permalink = str_replace($rewritecode, $rewritereplace, $permalink);
} else {
// if they're not using the fancy permalink option
}

return $permalink;
}

Step 5: Add rewrite rules

function my_class_add_rewrite_rules($rules){
$new_rules = array();

// This is the important bit, unsetting the rules
unset($rules['classes/([0-9]{4})/([0-9]{1,2})/?$']);
unset($rules['classes/([0-9]{4})/?$']);

$new_rules['classes/([0-9]{4})/?$'] = 'index.php?year=$matches[1]&post_type=incsub_event';
$new_rules['classes/([0-9]{4})/([0-9]{1,2})/?$'] = 'index.php?year=$matches[1]&monthnum=$matches[2]&post_type=incsub_event';
$new_rules['classes/([0-9]{4})/([0-9]{2})/(.+?)/?$'] = 'index.php?year=$matches[1]&monthnum=$matches[2]&incsub_event=$matches[3]';

return array_merge($new_rules, $rules);
}

Step 6: Don’t forget to flush

add_action('option_rewrite_rules', 'my_class_check_rewrite_rules');

function my_class_check_rewrite_rules($value) {
global $wp_rewrite;

//prevent an infinite loop
if ( ! post_type_exists( 'incsub_event' ) )
return;

if (!is_array($value))
$value = array();

$array_key = 'events/([0-9]{4})/?$';
if ( !array_key_exists($array_key, $value) ) {
$wp_rewrite->flush_rules();
}
$array_key = 'events/([0-9]{4})/([0-9]{1,2})/?$';
if ( !array_key_exists($array_key, $value) ) {
$wp_rewrite->flush_rules();
}
$array_key = 'events/([0-9]{4})/([0-9]{1,2})/(.+?)/?$';
if ( !array_key_exists($array_key, $value) ) {
$wp_rewrite->flush_rules();
}
}

That’s it. Most important steps are Step 5 and Step 6

dialog-apns-0.1-signed

Bottom line is WordPress for iOS is a win on the iPad. Since blogging became so much easier, expect more blog posts

PS: Thank you Dialog, you can follow them on Twitter @dialoglk

To much to my surprise as soon as I plugged the printer Ubuntu recognized the printer and installed it, with in few seconds without any clicks or key presses the printer was ready for printing. I never bothered testing on Windows 7 but I’m sure I would have had to install drivers (Samsung claims it takes only 4 clicks).

However I ran to some trouble sharing the printer with Snow Leopard as the driver selected by Ubuntu needed to be used as a raw printer queue and I could get around how to set it up on Snow Leopard. Instead I flipped around the setup, I shared the printer as a raw printer queue and used the built in driver on Snow Leopard for the printer. I had to do the same for my notebook as well. Everything was working perfectly, finally . In the process I also figured out that Generic GDI driver works as long as the print job fits the printer memory (8 MB), if you send a larger job it will fail with nothing printed (but the printer receives the job).

For anyone wondering, on Linux the driver used is (automatically selected by Ubuntu) is Samsung ML-1640, SpliX V. 2.0.0 , which covers all capabilities of the printer (may be except for toner level).

I’m really happy with the printer, I think it was a very good purchase. I really like the idea the cartridge comes with a handle to push it into place. Then the fact that I can print the demo page by pressing and holding the reset/cancel button on the printer to get the toner level and other printer details. Only thing I miss is fully duplex printing, but with the lower cost I don’t mind working upto the printer to feed the paper when the printer is done printing one side of the pages.

http://www.youtube.com/watch?v=P8JJ5mEhaAM

On Thursday (29th July), an update to iKeyword was released enabling users fetch unlimited number of related keywords based on user feedback upping the version to 1.0.2 from 1.0.1 . If the number of related keywords returned was an issue that prevented you from using iKeyword; download to iKeyword 1.0.2 now on the iPhone App Store.

Whole of this week I have been working on an uber cool iPad application which will hopefully be released in August, it’s a biggie. Stay subscribed or follow me on Twitter to be the first to hear when it’s released.

Btw, system administrator appreciation day falls tomorrow; do not forget to throw a party for your SysAdmin, get him/her a gift or just say thanks

http://www.youtube.com/watch?v=u9NCCE540Gg

For everyone’s benefit;

1. Power up your PC or Mac
2. Open iTunes
3. Goto iTunes store home (Click the home icon once you get to iTunes store)
4. Click “Redeem” under “Quick links” (highlighted in the screenshot above)
5. Key in the redeem code and click the Redeem button

Enjoy your app free app

To much to my surprise Apple’s approval process only took 7 days (5 working days), thank you Apple for speedy approval . See the screenshot of iTunes Connect bellow.

Then the familiar Mobile partner will open up, and follow the instructions on the screen.

Hope this helped someone in a similar situation

direct-marketing.biz
Page rank 3 domain with a generic term. Rare opportunity no direct marketing firm should let go.

iaews.biz and iaews.us
Pair of page rank 7 domains. Not sure what iaews stands for but I’m sure what ever you host will make to the top of the Google index fast. Great SEO value.

meridianhealthcare.us
Page rank 5 domain. Great for a US based health care firm. If you are lucky New Jersey based Meridian Health will definitely be interested in this domain. Great opportunity for an experienced domainer.

Send me your offers, these domains are going fast as I need the cash fast to improve R2G Tools and I’m not very good at hard selling

What’s behind

Database; MongoDB is the main database backend, with MySQL used to hold non domain records. MongoDB was chosen because of it’s ability to handle large amount of objects, schemaless and ability to index keys. Thanks to MongoDB I can search, count and even insert and update records in few seconds (most operations are few milliseconds).

Web application framework; whois.r2g.in is completely built with CodeIgniter. It’s my framework of choice. I like it’s clean and lean architecture.

Servers; I’m running Lighty behind Varnish HTTP accelerator. I also use eaccelerator to optimize PHP code. I also have a memcached instance on the web server to cache data from MySQL. Goal is to speed up whois.r2g.in as much as possible. There are 2 MongoDB instances sharing the load which the application connects. Everything is running off 3 Athlon X2 servers, 2 running MongoDB instances and one running the application.

Why use both MongoDB and MySQL?

That’s because I didn’t want to put all my eggs in one basket. Any data that doesn’t change much like WHOIS servers put into a MySQL table. Information such at WHOIS data were stored in a MongoDB collection.

What I gained?

Lot of experience about data mining, storing and analyzing. I learned a lot about how to optimize data mining, I managed to bring down the time it takes to analyze all the domains for drops to few hours from few days by just pre sorting the zone files. I also gained few rare domains and high page rank domains. I have become a domainer thanks to the project

Please head over to R2G Tools and give it a try,  you might discover a great domain while you are there and make a huge profit. Do not forget to send me some feed back

1. Connect the iPhone or iPod Touch to your Mac or PC
2. Click on the device in iTunes, go to the “Summary” tab, click on the “Serial Number” label. The “Serial Number” will change to “Identifier”
3. Click on “Edit” in the menu at the top and select “Copy”
4. Now you can paste the device ID into an e-mail

Hope this helps if you don’t have access to a Mac or XCode and need to find out the device ID.

Was waiting for 5 minutes still stuck in the grey screen

If it doesn’t boot in reasonable amount of time, please boot in verbose mode. Press F8 to enter start up options and provide the option -v to boot in verbose mode. If you get a no entry sign or ask you to reboot, you are probably out of luck, still reboot and see whether your luck changes

Customize the installation

It’s important to select the correct drivers and other patches for the installation to work properly. In my case I had to select the following:

• Video Driver: NVInject 512MB
• OSx386 tools

If you are using PS/2 keyboard and mouse you will have to install the PS/2 patch. I’m not sure how well this will work as I have USB keyboard and mouse.

Here are some “screen shots” while installing. Please bear with the quality, I’m a horrible photographer

Mount the image in read write mode

$ hdiutil mount iPC_OSx86_10.5.6.iso -readwrite

Extract kexts from mkext

$ mkdir /tmp/Extensions
$ mkextunpack -d /tmp/Extensions Extensions.mkext

Copy kexts and remove unwanted kexts

$ cp -R nForceLan.kext /tmp/Extesions/
$ cp -R AppleNForceATA.kext /tmp/Extensions/
$ find /tmp/Extensions/ -name "*Intel*" -print0 | xargs -0 rm -R

Cache kext into mkext

$ sudo chown -R root:wheel /tmp/Extensions/
$ sudo chmod -R 755 /tmp/Extensions/
$ kextcache -a i386 -m /tmp/Extensions.mkext /tmp/Extensions

Copy Extenions.mkext to /System/Library on the ISO

$ cp /tmp/Extensions.mkext .

That’s it, now unmount the ISO and burn it to a DVD. Now we are ready to move on to the next step. I’ll be posting the details for actual installation Mac OS X 10.5.6 tomorrow.

/tmp/Extensions

In the mean time find out the specifications of your box. I’m using GIGABYTE GAPM61SME-S2 motherboard with AMD Athlon X2 CPU. If your specifications are just like mine go ahead and download all the files listed bellow, otherwise download 1-3 and then look for kexts for your motherboard.

System specification

• AMD Athlon X2 2800
• nVidia GeForce 6100/nForce 405 chipset
• 1 x 2 GB of DDR2 DIMM
• On board ethernet (nForce 10/1oo Mbit)
• Realtek ALC883 CODEC chip
• SATA HDD (nForce sata controller)
• USB Mouse
• USB Keyboard
• DVD Drive

Downloads

1. iPC OSx86 Leopard 10.5.6 Intel AMD SSE2 SSE3 DVD (Google and find out, you will have to download via Bit torrent)
2. Mac OS X 10.5.7 Update (http://keti.ws/95282)
3. Mac OS X 10.5.8 Combo Update (http://keti.ws/95283)
4. nForceLAN (http://keti.ws/94281)
5. AppleNForceATA (http://keti.ws/95281)

Steps

1. Patch the iPC DVD image (Otherwise the DVD will never boot)
2. Install Mac OS X 10.5.6
3. Remove all Intel kexts (Improves the boot time)
4. Install Mac OS X 10.5.7 update
5. Install Mac OS X 10.5.8 update

Await step 1, Patching the iPC DVD image tomorrow.

sub vcl_error {
set obj.http.Content-Type = "text/html; charset=utf-8";

if ( obj.status >= 500 && obj.status <= 505) {
C{
#include <stdio.h>
#include <string.h>

FILE * pFile;
char content [100];
char page [10240];
char fname [50];

page[0] = '\0';
sprintf(fname, "/var/www/errors/%d.html", VRT_r_obj_status(sp));

pFile = fopen(fname, "r");
while (fgets(content, 100, pFile)) {
strcat(page, content);
}
fclose(pFile);
VRT_synth_page(sp, 0, page, "<!-- XID: ", VRT_r_req_xid(sp), " -->", vrt_magic_string_end);
}C
} else {
synthetic {"
<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html>
<head>
<title>"} obj.status " " obj.response {"</title>
</head>
<body>
<h1>Error "} obj.status " " obj.response {"</h1>
<p>"} obj.response {"</p>
<h3>Guru Meditation:</h3>
<p>XID: "} req.xid {"</p>
<address>
<a href="http://www.varnish-cache.org/">Varnish</a>
</address>
</body>
</html>
"};
}

return (deliver);
}

Hope someone will find this useful as I had to put some effort to find out all the internal Varnish function names