I’m kind of surprised it’s taken this long. cms34 has been around for almost three years now, and this is the first time I’ve had a client need a cron job that relied on CakePHP functionality. (The system has a couple of backup and general-purpose cleanup tools that can be configured as cron jobs, but they’re just simple shell scripts.)
And so it was today that I found myself retrofitting my CakePHP-based web application to support running scripts from the command line. I found a great post in the Bakery that got me about 85% of the way there, but there were some issues, mostly due to the fact that the post was written in late 2006, and a lot has happened in CakePHP land over the last 4 1/2 years.
There are two big differences in app/webroot/index.php in CakePHP 1.3 compared to the version that existed at the time of that original post: first, the calls to the Dispatcher object are now wrapped in a conditional, so the instruction to replace everything below the require line should now be something closer to “replace everything within the else statement at the bottom of the file.”
The other big change is that this file defines some constants for directories within the application, and those paths are all wrong if you move the file into the app directory as instructed.
Below is my revised version of the code. Note that I also reworked it slightly so the command can accept more than two arguments as well. There’s a space before Dispatcher is called where you can insert any necessary logic for handling those arguments. (I also removed all of the comments that appear in the original version of the file.)
<?php
if (!defined('DS')) {
define('DS', DIRECTORY_SEPARATOR);
}
if (!defined('ROOT')) {
define('ROOT', dirname(dirname(__FILE__)));
}
if (!defined('APP_DIR')) {
define('APP_DIR', basename(dirname(__FILE__)));
}
if (!defined('CAKE_CORE_INCLUDE_PATH')) {
define('CAKE_CORE_INCLUDE_PATH', ROOT);
}
if (!defined('WEBROOT_DIR')) {
define('WEBROOT_DIR', APP_DIR . DS . 'webroot');
}
if (!defined('WWW_ROOT')) {
define('WWW_ROOT', WEBROOT_DIR . DS);
}
if (!defined('CORE_PATH')) {
if (function_exists('ini_set') && ini_set('include_path', CAKE_CORE_INCLUDE_PATH . PATH_SEPARATOR . ROOT . DS . APP_DIR . DS . PATH_SEPARATOR . ini_get('include_path'))) {
define('APP_PATH', null);
define('CORE_PATH', null);
} else {
define('APP_PATH', ROOT . DS . APP_DIR . DS);
define('CORE_PATH', CAKE_CORE_INCLUDE_PATH . DS);
}
}
if (!include(CORE_PATH . 'cake' . DS . 'bootstrap.php')) {
trigger_error("CakePHP core could not be found. Check the value of CAKE_CORE_INCLUDE_PATH in APP/webroot/index.php. It should point to the directory containing your " . DS . "cake core directory and your " . DS . "vendors root directory.", E_USER_ERROR);
}
if (isset($_GET['url']) && $_GET['url'] === 'favicon.ico') {
return;
} else {
// Dispatch the controller action given to it
// eg php cron_dispatcher.php /controller/action
define('CRON_DISPATCHER',true);
if($argc >= 2) {// INSERT ANY LOGIC FOR ADDITIONAL ARGUMENT VALUES HERE
$Dispatcher= new Dispatcher();
$Dispatcher->dispatch($argv[1]);
}
}
After implementing this version of cron_dispatcher.php, I was able to get CakePHP scripts to run at the command line without being fundamentally broken, but there were still a few further adjustments I needed to make (mostly in app_controller.php). Those were specific to my application. You’ll probably find yourself in the same boat.
A couple of other things worth noting: if your server is anything like mine, you’ll need to specify the full path of the PHP command line executable when running your scripts. In my case it was /usr/local/bin/php. And, the one sheepish confession I have to make: I know the goal with the way the file path constants are defined is to avoid any literal naming, but I couldn’t find a good way to get around that for WEBROOT_DIR, with the file no longer residing in webroot itself. I’ll leave fixing that as an exercise for the reader.
Good luck!
Download the Script
cron_dispatcher.php
cron_dispatcher.php.zip • 1.2 KB
I’ve always been into electronic gadgets. I’ve also always been into carrying a bunch of crap that I “need” (or perceive that I need) around with me. My dream since I was a kid was always to be able to carry “everything” with me at once, in a convenient way.
In the mid-’80s, the Sony Walkman was the symbol of portable technology. As CDs overtook the popularity of cassettes in the ’90s, and Sony finally figured out how to make a portable CD player that didn’t skip if you so much as breathed on it, the Walkman was gradually replaced by the Discman.
As cool as the Walkman was, you couldn’t actually record with it (at least with most models). You could always lug a 
When I went into writing this post, I really hoped to at least give 1986 the original Game Boy, but my research says it wasn’t actually released until 1989. I never had one, so I didn’t remember. Yes, it’s true… if you wanted a handheld video game device in 1986, the best you could do was one of Nintendo’s single-game “Game & Watch” devices. As rudimentary as they seem today, their design was a clear inspiration for Nintendo’s current line of DS portable game devices.
Calculator watches were so cool (at least, if you weren’t) in the ’80s, it’s hard to believe they would ever fade into laughable irrelevance. They were pretty impressive technology for the time though, and were irresistibly futuristic. It’s no wonder Marty McFly conspicuously sported one on his journey back to 1955… it bolstered his “future boy” cred in a way no nylon vest ever could.
If you were too cool for a nerdy calculator watch back in the ’80s, your only option when traveling was to purchase a dedicated travel alarm clock. Some of these were pretty well-designed, but such a single-purpose device is anathema today. Besides, I’m sure the sight of one of these in a carry-on would raise a TSA eyebrow or two.
Pocket calendars have come in countless variations for almost as long as printing has existed, some more useful than others. Wallet card calendars like the one shown here are about as useless as they get, but that didn’t stop me from having at least one of them in my wallet at all times as a 12-year-old… especially since I didn’t have any money to put in it.
I admit, I’ve never really had much use for a compass. I don’t spend a lot of time out in the wilderness, and I think a compass would only confuse my natural sense of direction in the city. But I recognize the importance of these devices, and thanks to the iPhone’s various internal sensors, all of the capabilities of a real magnetic compass can now live in software.
Ah, the trusty Mead memo book. My dad wrote a thousand grocery lists in these while I was growing up, and the little bits of paper that tore off the spiral binding over repeated openings and closings were everywhere. These days there are 
Sure, there were plenty of pocketable point-and-shoot cameras back in the ’80s, and of course the venerable Polaroid instant camera was still going strong. But no camera — truly, no device of any kind — epitomizes pointless ’80s novelty technology better than the Minolta Talker. I wasn’t able to verify that the Talker existed in 1986 — I think more likely it dates to 1987 or 1988 — but we had one, and I’ll never forget such helpful photographic advice as “Load film” or the classic “Too dark… use flash.”
Ah yes, the JVC VideoMovie. That distinctive red and black camcorder, immortalized by my hero Marty McFly. We owned one of these. It was the stuff of legend. It also, despite its considerable size, used the bizarre VHS-C format tapes. These were about 1/3 the physical size of a regular VHS cassette, but the tape itself was the same width and was compatible with regular VHS VCRs… with the help of a VHS tape-sized adapter that the VHS-C tapes would snap into. Unfortunately, since the cassettes were so small, they only had enough room to hold 20 minutes’ worth of tape. I hope Doc packed a couple of cases of blanks along with his plutonium.
When you look at early cell phones, it’s a wonder the devices ever caught on. Of course, they didn’t really catch on when they were the size of a small refrigerator and emitted enough radiation to make your head glow in the dark. But the fact is, you could own a cell phone back in 1986 and, well, that’s saying a lot right there, isn’t it?
I recently watched the classic 1964 James Bond movie Goldfinger, and was amused by the GPS-like device Bond had in his car. (GPS was just becoming available to civilians in the ’80s, and it looked like 
No industry is reeling from the iPhone (and the iPad) the way publishing is. Newspapers, magazines, books… publishers of all kinds are trying to discover viable business models in the world of paperless publishing. (And here I thought we’d already worked all of this stuff out with the web over the past 15 years.)
Yes… a portable LCD TV in the mid-’80s. Don’t believe it? I had one of these, exactly as shown. It had a 2-inch black-and-white screen. And, strangely, the screen was in the top of that flip-up lid. The bottom part had a mirror, which was what you looked at to view your program. Why? Well… backlight technology was feeble and battery-sucking. The lid was translucent, and if you were in a bright enough environment, the ambient light would shine through, illuminating the screen. There was also a bulky snap-on backlight attachment for use in dimmer surroundings, but if this was in one of your pockets, the rest of them better be filled with AAA batteries or you wouldn’t be watching much.
OK, OK. This flashlight is from the 1960s. But my grandparents had one exactly like this when I was a kid in the ’80s. The big black thing on the side had magnets in it, allowing it to stick to the side of the refrigerator, which is where they always kept it.
It’s a bit of a stretch to call the iPhone a portable computer, at least when compared to 
