geekmonkey (Page 2)

PHP 5.5 Generators

Among the new features that will be introduced in PHP 5.5, the probably most exiting one is the concept of generators. What are Generators? Lets first look at what Wikipedia has to say about generators: > In computer science, a generator is a special routine that can be used

Golang

Baking a Pi for Google Go

No that is not a typo in the title! Google Go was first released to the wild in 2009, exactly three years ago [http://google-opensource.blogspot.de/2009/11/hey-ho-lets-go.html]. Since then it has grown from an experimental language to production ready language with Go 1. Go is available

Ruby

Building mruby on the Raspberry Pi

The Raspberry Pi is a credit-card sized computer with 700 MHz (can be overclocked to about 1.1 GHz) and originally 256 MB memory, which has recently received an upgrade to 512 MB. Yukihiro Matz announced mruby in 2011 as Ruby implementation that is easily embeddable into other application and

Ruby

An Introduction to Mini Ruby

Ruby is used in a wide variety of projects today, but has gained popularity in web development with Ruby on Rails. With mruby, the latest language implementation, Ruby can be embedded into other applications. Installation The mruby project is hosted on Github. There are currently no binary distributions available, but

Matomo

How to write a Piwik Plugin

Piwik offers a plugin architecture, that allows you to build plugins without modifying the Piwik core. This article will give an introduction to the Piwik plugin architecture and show you how to build your own plugin. What can a plugin do for me? A plugin can.. * ..collect additional data that

Matomo

Tracking the IPv6 reach of your Website with Piwik

IPv6 [http://en.wikipedia.org/wiki/IPv6] is slowly adapted by ISPs around the globe. If your website is accessible with both IPv4 and IPv6 it might be interesting to see how users are accessing your website and how it changes overs time. IPv6Usage The IPv6Usage plugin for Piwik allows

Matomo

Transitions and GeoIP in Piwik 1.9

I am using Piwik for over three years now and have seen it grown from version 0.4 to todays release of Piwik 1.9. Update to 1.9 Piwik will tell you to upgrade to the latest version on the top right corner. Once you click on the link

Ruby on Rails

Tracking Visits with Piwik Analytics in Rails

Piwik [http://piwik.org] is an open source web analytics tool written in PHP. With the first release in 2007 it quickly gained popularity as it is easy to install and organizations and individuals have complete control over the tracked data and not a third party (like Google). Right now

Ruby on Rails

Exception Applications in Rails 3.2

No Ruby on Rails developer want to see them in production: Exceptions! By default every Rails project comes with two static files that get rendered when an exception in production occurs. The problem with these pages is, that they do not fit well into any design and do not tell

Ruby on Rails

Introducing Turbolinks for Rails 4.0

David Heinemeier Hansson [http://david.heinemeierhansson.com/], creator of Ruby on Rails, recently announced on Twitter [https://twitter.com/dhh/status/251024691337244672] that a feature called Turbolinks will ship as default-on in the Gemfile of Ruby on Rails 4.0. Turbolinks is already [https://twitter.com/dhh/status/251111584317972480] powering

Ruby on Rails

Using Neo4j with Rails 3.2

Neo4j is a NoSQL graph database written in Java. This means that you work with nodes and relationships rather than fixed tables with a schema. Nodes can easily be mapped to Ruby object and relationships seen as references to other objects. This article will show how to utilize Neo4j to

Java

A new Date and Time API for JDK 8

Date and time handling in Java is a somewhat tricky part when you are new to the language. Time can be accessed via the static method System.currentTimeMillis() [http://docs.oracle.com/javase/7/docs/api/java/lang/System.html#currentTimeMillis%28%29] which returns the current time in milliseconds

Ruby on Rails

Device based website with Rails

In recent years the multiplicity of devices connected to the internet has increased dramatically. In todays world people do not only surf the web on their desktop computer, there are smartphones, tablets and even TVs connected to the web. All those devices come with different screen resolutions and capabilities in

Eclipse

Comparison of IDEs for Google Go

Introduction Go 1 was released in March 2012 and has gained some popularity since then. Naturally developers are looking for proper IDEs to support code completion, syntax highlighting and other editing features. Comparison of IDEs Sublime Text 2 Sublime Text 2 is a relatively new editor and has gained popularity

Eclipse

Configuring Eclipse to find the JDK

Eclipse sometimes fails to find the JDK as it does not look at the JAVA_HOME environment variable. Most likely you ran into the following error: > A Java Runtime Environment (JRE) or Java Development Kit (JDK) must be available in order to run Eclipse. No Java virtual machine was

Kotlin

Installing the Kotlin Compiler

Kotlin is a new statically typed language from JetBrains. JetBrains is known for its popular Java IDE IntelliJ. Kotlin was recently open sourced and the compiler made available through Github. This article will show the steps necessary to build and install the compiler and run a program. Installation JetBrains has

Ruby on Rails

Static pages with High Voltage

Dealing with static pages in Rails will almost always result in creating a special controller with empty actions that just render out some template. This task is so common that it is perfect to extract it out into a Rails engine. ThoughtBot [http://robots.thoughtbot.com/], the company behind the

gimp

Listing the used fonts of an image in GIMP

GIMP uses the .xcf format to store images and layers. While it also stores the meta data of each layer and the fonts used for text layers it is not easy to get a list of all fonts. Under Filter > Python-Fu > Console it is possible to access a

Java

Drawing a YinYang symbol in Java

The Taijitu symbol (sometimes referred to Yin and Yang symbol) is a geometric figure and the universal symbol of the religion of Taoism. In a recent project, where a group of students had the task to implement a Go Board game with a simple AI in Java, the idea came

MySQL

Extracting a single database from a mysqldump

Some days ago a friend asked me how to extract a single database from a complete database dump. He created the dump using mysqldump and only wanted to restore a single database, without having go through >80k lines. After a little thinking I came up with a little script