Posted by Lee Powers
You should be familiar with the hosts file. And you show know the IP address of the server we're configuring
Switch to root:
sudo su
Install RVM (Ruby Version Manager)
» Read more "Ruby on Rails, nginx and PHP on a Ubuntu 12.04 LTS server "
Posted by Lee Powers
The problem: when using NetBeans IDE on OSX 10.8+ on a retina display MBP the text looks blurry. Very blurry. Unusably blurry.
Oddly enough this problem is solved by using an older version of Java - JDK 1.6 instead of JDK 1.7.
» Read more "Blurry text on NetBeans and Retina Display Macbook Pro"
Posted by Lee Powers
According to this analysis last week's leak of 1+ million Apple device serial numbers was not sourced at the FBI. Rather - an iPhone app development company named BlueToad was the source. This is inline with the FBI's denial of any involvement in the leak.
Posted by Lee Powers
For Drupal 7 load a view programmatically with contextual filter arguments:
» Read more "Drupal load view programmatically with arguments"
Posted by Lee Powers
Important update to this post: BlueToad responsible for the leak, not the FBI
The anonymous hacker group AntiSec has leaked 1 million+ Apple iPhone/iPad UDIDs, sourced from a compromised FBI laptop. (For the uninitiated: A UDID is a digital serial number for a iPhone, iPad, iPod or other iDevice)
» Read more "AntiSec leaks 1 million Apple serial numbers - via the FBI"
Posted by Lee Powers
Every Wordpress Page can have a page template as defined by the current Wordpress theme. Note that the page template and the Wordpress theme are two separate entities. A theme can define multiple page templates. Like so:
+ My Wordpress Theme ++ Default (page.php) ++ Full Page (page-full.php) ++ Home Page (page-home.php)
The page template is selected when editing a page in the Wordpress Admin. As in the following screen shot:
Posted by Lee Powers
jQuery mobile buttons, body text and form elements stretching out too wide on larger monitors? No problem! Drop in a few CSS rules to set a maximum width on the page.
Here's the full code with detailed explanation below:
Posted by Lee Powers
I've created and released a fork of Nivo Slider that enabled lazy loading of images via the data-src HTML data attribute. Ideal for large image slideshow - either the number of images or the file size of the images.
Posted by Lee Powers
To override an inline CSS style use the !important modifier:
<p style="background-color: #f00; color: #fff">
Hello Redness
</p>
<p style="background-color: #f00; color: #fff" id="test">
Hello Blackness
</p>
<style type="text/css">
#test {
background-color: #000 !important;
}
</style>And here it is in action:
Posted by Lee Powers
Just uploaded a new project to GitHub: jQuery Sliders - a simple and elegant slideshow plugin for displaying linked images in a slideshow.
Posted by Lee Powers
Just pushed two new projects to GitHub for Hold My Ticket. One is an advanced PHP library for HMT - the other is a Drupal plugin. Both are being used on the Red Room Lounge web site.
Posted by Lee Powers
There's some quirks when using the jQuery Validator plugin with the jQuery Mobile framework. So I wrote a JavaScript shiv to iron out these wrinkles: jQuery Mobile Validator
Posted by Lee Powers
This error occurs when all plugins haven't been loaded, and commonly occurs when attempting to load restricted resources (stylesheets and javascript) or AJAX functions (wp_ajax_*) for admin users. To fix delay your Wordpress hooks to load after plugins have fully loaded. For example:
» Read more "Call to undefined function wp_get_current_user"
Posted by Lee Powers
Wordpress has a number of built-in functions for getting the full URL of the current template. But in some instances it's desirable to get the full system path to a file in the current Wordpress template/theme. Wordpress exposes two functions that while incomplete in themselves can still get the path of the current theme:
» Read more "Wordpress get the current template or theme path"
Posted by Lee Powers
I recently was asked the following question regarding MySQL table / schema design:
Posted by Lee Powers
One of the more awesome recent features to jQuery has to be the promise() functionality. promise() enables detecting when a group of actions have all completed, regardless of queue status.
An example: animate a group of HTML elements using slideDown() but only trigger a callback once ALL the animations have completed. With the given HTML:
» Read more "jQuery animation callback called twice? (or more?) Use a promise()"
Posted by Lee Powers
A quick note on managing HTML5 data variables via .data() and .attr('data-name')
The .data() call is special - not only does it retrieve HTML5 data attributes it also attempts to evaluate/parse the attributes. So with an attribute like data-myjson='{"hello":"world"}' when retrieved via .data() will return a Javascript Object while retrieval via .attr() will return a string.
» Read more "jQuery HTML5 data variables, data() and attr()"
Posted by Lee Powers
The goal: to parse arguments/parameters from within a Javascript embed script using the query string. So an embed script can be configured as follows:
<script src="embed.js?arg1=my+first+arg&arg2=the+second+arg"></script>
This is ideal as you can load the embedded script configuration using pure Javascript and not require any server-side page to parse the querystring and dynamically generate the configured Javascript.
» Read more "Javascript pass parameters or arguments to embedded script"
Posted by Lee Powers
Setting and displaying the 404 error page along with the appropriate HTTP headers is simple in Drupal 7:
drupal_not_found(); die;
Note the die() function is called immediately after drupal_not_found() - otherwise Drupal will keep on processing the page.
» Read more "Drupal 7 set & display 404 not found error page"
Posted by Lee Powers
Ran into this rails error message while running a database migrate on a production site:
$ RAILS_ENV=production rake db:migrate rake aborted! You have already activated rake 0.8.7, but your Gemfile requires rake 0.9.2.2. Consider using bundle exec.
I tried a variety of fixes including this one but got a Don't know how to build task 'cron' error message in response to the attempted fix.
» Read more "You have already activated rake 0.8.7, but your Gemfile requires rake ...."
Posted by Lee Powers
Quick one-liner for the command line for dumping a MySQL database to a gzipped file. There's no need to tar-ball it as we just want to compress a single dump file and tar is used for a group of files:
mysqldump powers1 -u root -p | gzip -c | cat > powers1-$(date +%Y-%m-%d-%H.%M.%S).sql.gz
Replace both instances of powers1 with the name of the database you want to dump. This one-liner will append the current date and time to the dump gz file.
» Read more "MySQL dump database to tar gz zipped file one-liner"
Posted by Lee Powers
Want to get the current path of the current Drupal node? Assuming you have the Path module enabled this function will return the current path for the current node:
Posted by Lee Powers
Is Drupal not logging errors to your configured php error_log? Is the PHP error_log function not working? Make sure the Syslog module is enabled in Modules Drupal admin!
Posted by Lee Powers
When creating an HTML5 CSS site often I want to add in a CSS reset before any other Drupal CSS. BUT I'll also need to make sure my theme's CSS loads after every other stylesheet - this is the cascading in Cascading Style Sheets - if two stylesheets are loaded into a page and both define a style for the BODY tag, the last stylesheet loaded will have override the previous.
Posted by Lee Powers
In D7 (Drupal 7) it's relatively straightforward to create a template for a custom node content type. For instance on this site I have a custom node type called "Project" which represents a project I've worked on and want to list in my freelance developer portfolio.
The Drupal 7 theme system is layered - meaning there's a default template file for rendering all nodes which can be overridden by a freelance developer to customize the rendering of all nodes or of a particular custom node type.
» Read more "Drupal 7 create a page template for a custom node content type"