Drupal Expert

Zend Framework 2 : Generate Doctrine Entities from Existing Database using DoctrineModule and DoctrineORMModule

2013-05-23T02:08:00.001-07:00

f we are working with Doctrine , we usually create entities first, and generate the database tables. How if the situation is the database tables and data is already ready, and we have to create an application based on doctrine and Zend Framework 2? We need generate entities! Don’t create them manually!

For example, i have two tables : album and track (i’m using PostgreSQL ) like the following :

-- Table: album

CREATE TABLE album

(

id bigserial NOT NULL,

artist character varying(255),

title character varying(255),

CONSTRAINT pk_album PRIMARY KEY (id )

)

WITH (

OIDS=FALSE

);

ALTER TABLE album

OWNER TO developer;

-- Table: track

CREATE TABLE track

(

track_id bigserial NOT NULL,

track_title character varying(255),

album_id bigint,

CONSTRAINT track_pkey PRIMARY KEY (track_id ),

CONSTRAINT fk_track_album FOREIGN KEY (album_id)

REFERENCES album (id) MATCH SIMPLE

ON UPDATE CASCADE ON DELETE CASCADE

)

WITH (

OIDS=FALSE

);

ALTER TABLE track

OWNER TO developer;

Ok, let’s create an application based on ZF2 step by step :

1. install ZF2 SkeletonApplication

git clone git://github.com/zendframework/ZendSkeletonApplication.git zftutordoctrine

2. add “doctrine/doctrine-orm-module” to your zftutordoctrine/composer.json

{

"name": "zendframework/skeleton-application",

"description": "Skeleton Application for ZF2",

"license": "BSD-3-Clause",

"keywords": [

"framework",

"zf2"

"homepage": "http://framework.zend.com/",

"require": {

"php": ">=5.3.3",

"zendframework/zendframework": ">2.1.3",

"doctrine/doctrine-orm-module": "0.7.*"

}

3. Install it

php composer.phar self-update && php composer.phar install

4. Create an Album module with structure entity like the following :

5. Configure doctrine connection

You can define it at one file, but separate it with two file(local and global) can make security happy

a. config/autoload/doctrine.global.php

//config/autoload/doctrine.global.php

return array(

'doctrine' => array(

'connection' => array(

'orm_default' => array(

'driverClass' => 'Doctrine\DBAL\Driver\PDOMySql\Driver',

'params' => array(

'host' => 'localhost',

'port' => '5432',

'dbname' => 'zftutordoctrine',

)

));

b. config/autoload/doctrine.local.php

//config/autoload/doctrine.local.php

return array(

'doctrine' => array(

'connection' => array(

'orm_default' => array(

'driverClass' => 'Doctrine\DBAL\Driver\PDOPgSql\Driver',

'params' => array(

'user' => 'developer',

'password' => '123456',

)

));

6. register Album\Entity into doctrine driver in module/Album/config/module.config.php

//module/Album/config/module.config.php

return array(

'doctrine' => array(

'driver' => array(

'Album_driver' => array(

'class' => 'Doctrine\ORM\Mapping\Driver\AnnotationDriver',

'cache' => 'array',

'paths' => array(__DIR__ . '/../src/Album/Entity')

'orm_default' => array(

'drivers' => array(

'Album\Entity' => 'Album_driver'

);

7. Register modules into config/application.config.php

//config/application.config.php

return array(

'modules' => array(

'Application',

'DoctrineModule',

'DoctrineORMModule',

'Album'

// These are various options for the listeners attached to the ModuleManager

'module_listener_options' => array(

'module_paths' => array(

'./module',

'./vendor',

'config_glob_paths' => array(

'config/autoload/{,*.}{global,local}.php',

);

8. Generate Time !

a. convert-mapping

./vendor/doctrine/doctrine-module/bin/doctrine-module orm:convert-mapping --namespace="Album\\Entity\\" --force --from-database annotation ./module/Album/src/

it will export “annotation” mapping information into ./module/Album/src/

b. generate-entities

./vendor/doctrine/doctrine-module/bin/doctrine-module orm:generate-entities ./module/Album/src/ --generate-annotations=true

it will add setter/getter into entities.

and you will get the following entities AUTOMATICALLY :

Album\Entity\Album

<?php

namespace Album\Entity;

use Doctrine\ORM\Mapping as ORM;

/**

* Album

* @ORM\Table(name="album")

* @ORM\Entity

class Album

{

/**

* @var integer

* @ORM\Column(name="id", type="bigint", nullable=false)

* @ORM\Id

* @ORM\GeneratedValue(strategy="SEQUENCE")

* @ORM\SequenceGenerator(sequenceName="album_id_seq", allocationSize=1, initialValue=1)

private $id;

/**

* @var string

* @ORM\Column(name="artist", type="string", length=255, nullable=true)

private $artist;

/**

* @var string

* @ORM\Column(name="title", type="string", length=255, nullable=true)

private $title;

/**

* Get id

* @return integer

public function getId()

{

return $this->id;

}

/**

* Set artist

* @param string $artist

* @return Album

public function setArtist($artist)

{

$this->artist = $artist;

return $this;

}

/**

* Get artist

* @return string

public function getArtist()

{

return $this->artist;

}

/**

* Set title

* @param string $title

* @return Album

public function setTitle($title)

{

$this->title = $title;

return $this;

}

/**

* Get title

* @return string

public function getTitle()

{

return $this->title;

}

Album\Entity\Track

<?php

namespace Album\Entity;

use Doctrine\ORM\Mapping as ORM;

/**

* Track

* @ORM\Table(name="track")

* @ORM\Entity

class Track

{

/**

* @var integer

* @ORM\Column(name="track_id", type="bigint", nullable=false)

* @ORM\Id

* @ORM\GeneratedValue(strategy="SEQUENCE")

* @ORM\SequenceGenerator(sequenceName="track_track_id_seq", allocationSize=1, initialValue=1)

private $trackId;

/**

* @var string

* @ORM\Column(name="track_title", type="string", length=255, nullable=true)

private $trackTitle;

/**

* @var \Album\Entity\Album

* @ORM\ManyToOne(targetEntity="Album\Entity\Album")

* @ORM\JoinColumns({

* @ORM\JoinColumn(name="album_id", referencedColumnName="id")

* })

private $album;

/**

* Get trackId

* @return integer

public function getTrackId()

{

return $this->trackId;

}

/**

* Set trackTitle

* @param string $trackTitle

* @return Track

public function setTrackTitle($trackTitle)

{

$this->trackTitle = $trackTitle;

return $this;

}

/**

* Get trackTitle

* @return string

public function getTrackTitle()

{

return $this->trackTitle;

}

/**

* Set album

* @param \Album\Entity\Album $album

* @return Track

public function setAlbum(\Album\Entity\Album $album = null)

{

$this->album = $album;

return $this;

}

/**

* Get album

* @return \Album\Entity\Album

public function getAlbum()

{

return $this->album;

}

JUST IMAGINE that YOU SHOULD WRITE THEM MANUALLY :p

9. Fill database tables rows, and Let’s call from whatever controller for testing :

public function indexAction()

{

$em = $this->getServiceLocator()

->get('doctrine.entitymanager.orm_default');

$data = $em->getRepository('Album\Entity\Track')->findAll();

foreach($data as $key=>$row)

{

echo $row->getAlbum()->getArtist().' :: '.$row->getTrackTitle();

echo '<br />';

}

Zend Framework 2 : Paginator – Using TableGateway Object

2013-05-23T02:03:00.001-07:00

Zend Framework 2.2 is coming, more feature, more improvement.One of features that i like is DbTableGateway adapter for Paginator that can be used at your Table Class to make our life easier. The current ZF2 doc is using DbSelect Adapter, so now i will post an example how to use DbTableGateway Adapter.

I will follow the AlbumTable tutorial in the doc, so AlbumTable should be like the following :

namespace Album\Model;

use Zend\Db\TableGateway\TableGateway;

use Zend\Paginator\Adapter\DbTableGateway;

use Zend\Paginator\Paginator;

class AlbumTable

{

    //...

    public function fetchAll($paginated = false)

    {

        if ($paginated) {

            $dbTableGatewayAdapter = new DbTableGateway($this->tableGateway);

            $paginator = new Paginator($dbTableGatewayAdapter);

            return $paginator;

        }

        return $this->tableGateway->select();

    }

    //...

}

Very easy

Note : currently, you can pass $where and $order to DbTableGateway adapter after tableGateway parameter.

Drupal How-To: Responsive or adaptive images

2013-05-22T23:53:00.001-07:00

In this 3 part Drupal How to series, I'm going to show you how various options for configuring images on your site. In Part 1, we looked at how to tweak the default image options. In Part 2, we saw ways to allow inline images.

In this post, I’ll discuss the various options for responsive/adaptive images on your site. Though I’m writing for beginners to Drupal, I assume you’re aware of responsive design and of course you’ve read my first two blog posts so you also understand how Drupal handles images. If you’re not sure, check out this info to start:

The image problem

Creating any website is an obstacle course, but taking the responsive route means you’ll run into a few tricky turns: tables, grids, images are pose problems when you try to use the same content across different browser widths.

Images pose the biggest problem because not only does a image need to resize, in some cases you need a totally different proportion, and of course, you don’t want to serve up a large desktop-sharp image to a 320px mobile device over a 3g connection. Also, the size of the image isn’t neccessarily related to the width of the device, but the container around it.

Below, I’ve made an illustration of the image problem with an example 3 column website with a wide lead image. You can see how you could compromise somewhat on the images across your desktop, laptop and tablet. Perhaps you could use CSS to resize the images where there is only a small difference. Media queries check the dimensions of the browser window, and allow you to set CSS specific to that browser width. However, for mobile device, a different crop of an image would be more suitable.

It’s bleeding-edgy

Any solution for so-called fluid images, responsive images or adaptive images right now is going to be a bleeding-edge case. That means it’s likely to be fragile and need tweaking and updates. Here’s a good round up of related articles on the topic.

The Responsive Images Community Group has proposed the new <picture> element as a solutionhttp://responsiveimages.org/ This would allow the markup to specify multiple image sources, and display the appropriate one based on specific browser widths, and then rely on a “fallback” in any other case. The proposed markup would look something like this:

<picture width="500" height="500">
<source media="(min-width: 45em)" src="/large.jpg">
<source media="(min-width: 18em)" src="/med.jpg">
<source src="/small.jpg">
<img src="/small.jpg" alt="">
<p>Accessible text</p>
</picture>

The proposal has been in development since last year, though it was only decided in October 2012 to postpone work to get it into the official HTML 5 specification. The proposal is a “living document” with frequent updates and changes. http://picture.responsiveimages.org/

Because no browsers can render the proposed new picture element, solutions are cropping up to solve the problem with JavaScript. See for example the jQuery Picture script.http://jquerypicture.com/ In that case you wrap a fallback image in a <noscript> element. This degrades nicely for older browsers.

So what are the options?

There are lots of quick hacks you can use. For our Movember page, we whipped up a scalable vector image (SVG) and used CSS to resize it depending on the browser width. But that isn’t going to work in many cases where you need a specifically different image.

Evan Scheingross has a good demo of Evan Marcotte’s recommendation to dynamically resize an image based on a proportion of the browser width. (Marcotte is credited with laying the foundation for ‘responsive’ design in 2010). However, as shown in the diagram above, a tablet in portrait mode with a single column may have more space available than a laptop with sidebars.

A good solution is to use server-side resizing and caching of images so you can serve up the appropriate image size as needed.

Fluid, Adaptive or Responsive image solutions in Drupal

Responsive themes, such as the Zen theme do take care of a certain amount of image sizing for your site applying CSS based on media queries, taking care of backward compatibility very elegantly. You’ll need to choose a module however to give you the options for controlling what images display and when- particularly in the case you detect a small browser width and want to display a lower resolution and smaller file size.

At the bleeding edge of design in Drupal - you’ll see a bunch of new modules pop up proposing slightly different solutions. Over time, the community has been really good about standardizing on 1 or 2 solutions, making it easier for maintainers, and also users.

Right now, the situation is so volatile with responsive images, there are a several equally good and popular solutions, each with their own caveats. There are two potential solutions: solve the image resizing on the server side or on the client side as markup. Even in the case that you use markup as the solution, you still need those alternative images available for display. However, the wider web design community doesn’t neccessarily agree that either is the right solution.

The Adaptive images script by Matt Wilcox takes care of image resizing on the server side. A screencast explains: http://vimeo.com/38947881 This is a PHP script which resizes and caches the images, and directs the server to hand out the right image to your viewer. It aims to work “right out of the box”. This is overwhelmingly the most popular solution up until now, with two modules leading the pack:

Adaptive images - 3198 sites http://drupal.org/project/adaptive_image Works with screen size, not window size.
Adaptive Image Styles (ais) 1484 sites http://drupal.org/project/ais This module integrates with inline images, Media and WYSIWYG.

If we judged by popularity alone, we’d assume either of these Adaptive images was the best solution. However, there are alternative modules which give you control when you manage display of an image field on a content type. I've chosen not to list all the options here because two seem to have taken the lead.

Responsive images and styles 1550 sites using this now. http://drupal.org/project/resp_img
Picture - 142 sites using this now. http://drupal.org/project/picture

Drupal 8 is forming a clear path with the Picture module. That is already part of Drupal 8 and has been backported to Drupal 7. Though there are few sites using this module now, you can expect to see many improvements coming soon, and more sites adopting it.

I drafted this blog post about 2 weeks ago, when I contributed documentation to the Picture module. I backtracked after realizing I had to cover some basics first (in Parts 1 and 2). In the meantime, Chris Ruppel at Four Kitchens has written up a blog post about this very situation. Responsive images: A Drupal solution.

How the Picture module works:

1Check out a demo for the Drupal 7 Picture module http://atix.be/Zke. Inspect the source to see the markup provided.
2First you specify breakpoints in your theme. This defines at which widths you want to offer alternative images. The Picture module reads the configuration from your theme's .info file.
3Configure custom image styles if needed. Picture module provides a wizard to help you create the styles, but you'll need to set the widths.
4Map the image styles and set the display options for the image field. Picture provides an alternative to the "Image" display formatter for image fields. For me, that was the only tricky step.

Read the complete tutorial on Drupal.org for the full step-by-step you need to set this up:http://drupal.org/node/1902264 I recommend combining the Picture module with a responsive theme such as Zen.

But is it future-proof??

I always have to be really careful about what we include in our training materials. We have to recommend reliable, stable modules and trusted solutions. Right now, the Picture module seems the most future-proof solution as its inclusion in Drupal 8 (hopefully) means a smooth upgrade. Can I guarantee that a better solution won't come up in a few months? Well... not really.

I’m always wary when I ask my colleagues for reports about what is happening “in the field”, and they come up with as many responses as people I ask. My colleagues on the Acquia Professional Services team work with some of the largest brands and organizations and advanced teams of designers and developers. They see a cross-section of solutions which actually work in practice. And right now, all of my colleagues admitted they aren’t seeing a lot of brands choose a responsive or adaptive image solution.

That doesn’t mean you shouldn’t try it however. It’s great to see established brands such as The Boston Globe leading the charge, and there’s no reason you can’t attempt it if you think it’s going to enhance your user’s experience.

Also: Don't forget to check out our Drupal training events across the globe.

Drupal 7 Theming and the image Path

2013-04-03T03:40:00.000-07:00

Drupal 7 there is a filefield in core now, there is also something like imagecache in Drupal 6 called image styles.
When it comes to theming you will soon find out that the image data stored in the node array is completely different than before. For example there is no filepath available.

Display image fields in templates

First and recommended solution would be to display the field as it is with the render() function:

<?php
  print render($content['field_name']);
?>

But for doing some more customization (e.g. for a special image slider) you might need the path to the image.
This is not as easy as in Drupal 6, because the path is not available in the node object any more. So one handy solution is to use image_style_url() to get the path:

<?php
  $field_items = field_get_items('node', $node, 'field_image');
  $path = image_style_url('image_style_name', $field_items[0]['uri']);
?>

This is already the path to the formatted image. So you can display the image with theme_image() now.

theme_image()

In addition the theme_image function to output images has changed too:

<?php
  $output = theme('image', array('path' => path_to_theme() . '/images/picture.gif'));
?>

Notice that the variables have to be specified in a single array now. You can read more about this at http://api.drupal.org/api/function/theme_image/7.

<?php
  $field_items = field_get_items('node', $node, 'field_image');
  $output = theme('image', array('path' => $field_items[0]['uri']));
?>

theme_image_formatter()

Another solution is the theme_image_formatter function, that does some of the stuff for you:

<?php
 $field_items = field_get_items('node', $node, 'field_image');
  $var = array(
    'item' => $node->field_items[0],
    'image_style' => 'image_style_name'
  );
 
  $output = theme_image_formatter($var);
?>

Zend Framework - How can i translate and switch the language from right to left

2013-04-03T03:34:00.000-07:00

<?= $this->doctype();// xhtml = strict ?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <?php echo $this->headTitle(); ?>
    <?php echo $this->headMeta(); ?>
    <?php echo $this->headScript(); ?>
    <?php echo $this->headLink()->prependStylesheet('/css/production.css'); ?>
    <link rel="shortcut icon" href="/img/pageicon.png" type="image/x-icon" />
    <link rel="alternate" type="application/rss+xml" title="We care Arab Page"      href="/rss.xml" />
</head>
<body>
!!!!!! everything need right to left, where default page is english (left to right).!!!!!
</body>
</html>

Follow up:
$this->view->headMeta()->appendName('Language','en');
This is not related to DIR

http://www.w3.org/TR/REC-html40/struct/dirlang.html This is a solution actually

It works

< html xmlns="http://www.w3.org/1999/xhtml" lang="ar" dir="RTL" >

ZF-> How do you assign it from MVC controller ?

< html xmlns="http://www.w3.org/1999/xhtml" lang="ar" dir=< ?= $this->rtl; ? > > ???

tried 2 suggestion

< body style="direction:rtl;" > OR < html xmlns="http://www.w3.org/1999/xhtml" lang="ar" dir="RTL" >

How to create Virtual host

2013-02-12T20:48:00.003-08:00

Virtual host

You now need to create an Apache virtual host for the application and edit your hosts file so that http://zf2-tutorial.localhost will serve index.php from the zf2-tutorial/public directory.

Setting up the virtual host is usually done within httpd.conf or extra/httpd-vhosts.conf. If you are using httpd-vhosts.conf, ensure that this file is included by your main httpd.conf file. Some Linux distributions (ex: Ubuntu) package Apache so that configuration files are stored in /etc/apache2 and create one file per virtual host inside folder /etc/apache2/sites-enabled. In this case, you would place the virtual host block below into the file /etc/apache2/sites-enabled/zf2-tutorial.

Ensure that NameVirtualHost is defined and set to “*:80” or similar, and then define a virtual host along these lines:

<VirtualHost *:80>
    ServerName zf2-tutorial.localhost
    DocumentRoot /path/to/zf2-tutorial/public
    SetEnv APPLICATION_ENV "development"
    <Directory /path/to/zf2-tutorial/public>
        DirectoryIndex index.php
        AllowOverride All
        Order allow,deny
        Allow from all
    </Directory>
</VirtualHost>

Make sure that you update your /etc/hosts or c:\windows\system32\drivers\etc\hosts file so that zf2-tutorial.localhost is mapped to 127.0.0.1. The website can then be accessed usinghttp://zf2-tutorial.localhost.

127.0.0.1               zf2-tutorial.localhost localhost

Restart your web server. If you’ve done it right, you should see something like this:

How install Apache 2.4 PHP 5.4 and MySQL 5.5.21 on Windows 7

2012-12-22T04:10:00.002-08:00

Recently decided to install a working Apache 2.4 / PHP 5.4 and MySQL 5.5 running locally on my Windows 7 laptop for web design, not using XAMPP or WAMP installation methods. Which are great but this round I wanted to match my Linux server.

Apache 2.4 Install

First download Apache 2.4 from http://www.apachelounge.com/download/ (httpd-2.4.1-win32.zip) Apache 2.4.1
with IPv6 apr-1.4.6 apr-util-1.4.1 apr-iconv-1.2.1 pcre-8.21 lua-5.1 libxml2-2.7.8 openssl-1.0.0g zlib-1.2.6. This release is supported by the PHP 5.4 install from windows.php.net for Apache 2.4.

Extract the zip and copy it to the root of C:\. This will be C:\Apache24 when it is all done.

Download PHP 5.4 VC9 x86 Thread Safe from http://windows.php.net/download/ . Extract and rename folder to php and move to C:\
Also, download php5apache2_4.dll-php-5.4-win32.zip(http://www.apachelounge.com/download/win32/modules-2.4/php5apache2_4.dll-php-5.4-win32.zip)
Runs with PHP 5.4 Thread Safe (TS), and only with Apache 2.4 Win32 VC9 or VC10.

Extract php5apache2_4.dll-php-5.4-win32.zip and copy php5apache2_4.dll to thec:\php\ext directory. This is needed to allow Apache to use PHP. Edit Apache’s config file, c:\Apache24\conf\httpd.conf and add the following lines to the bottom of the file.

LoadModule php5_module "c:/php/ext/php5apache2_4.dll"
AddHandler application/x-httpd-php .php

# configure the path to php.ini
PHPIniDir "C:/php"

While we are at it we can add index.php to Apache’s list just incase we want to have a starting page as php.

Find Directory index and add index.php

DirectoryIndex index.html index.php

Next we need to input a value for ServerName variable. You will have to un-comment it. Save the changes to the config file.

Now let’s register Apache as a service. Open a command prompt and type.

c:\apache24\bin\httpd -k install

If do not want Apache starting automatically at start-up/reboot:

GUI Way

START | RUN
Type in services.msc, hit Enter or click OK
Locate Apache2 service and double-click (or right-click for Properties)
Find the caption Startup type: (in the middle of the dialog box), use the pull-down and select Manual
Click OK

Command line

C:\> sc config Apache2.4 start= demand

Add

c:\Apache24; c:\Apache24\bin

to PATH in Environment variables. PATH ENVIRONMENT (System Properties | Advanced | Environment Variables | System variables | Path).
Example:
;c:\php;c:\apache24;c:\apache24\bin;

Now lets check Apache settings by issuing the command, c:\Apache24\bin\httpd -S

PHP Edits

Now we have to do a few edits to the php.ini file to tell it to load support for mysql and the location for the extensions. Since there is not a already set php.ini file we need to rename one of the two examples to php.ini.

Rename c:\php\php.ini-development to php.ini

Now let’s edit php.ini
Uncomment extension directory

; Directory in which the loadable extensions (modules) reside.
; http://php.net/extension-dir
; extension_dir = "./"
; On windows:
extension_dir = "ext"

Uncomment mysql modules
extension=php_mysql.dll
extension=php_mysqli.dll

Save the changes and open a command prompt. Check to make sure it shows loaded modules.

C:\> php -m

So now we have Apache running and configured to use php. Lets create a file called info.php, save it and see if Apache parses the info correctly to display the results.

Open Notepad or your favorite Windows editor and type and save the following.

 <?php
phpinfo();
?>

Open your browser and type, localhost/info.php for the location and you should receive alot of information about PHP.

MySQL
Download and install mysql-5.5.21-win64.msi. Change installation directory to C:\MySQL\MySQL Server 5.5 instead of Program files as there could be permissions issues. Once the installation is completed you can let the configuration wizard run and setup the database server. The defaults will work just fine, but remember what you set the password to for root.

PHPMyAdmin
PHPMyAdmin is a very nice tool to use for administering your MySQL installation.
Download and install phpmyadmin-3.4.10.1-english.zip.
Extract the file and move to c:\apache24\htdocs. Rename directory to phpmyadmin.
Create a config directory under phpmyadmin. Open a browser and type localhost/phpmyadmin/setup/index.php to complete the installation.

At this point you should have a working Apache / PHP / MySQL installation running and ready for you to start developing !!!

External urls

2012-10-04T06:15:00.003-07:00

If there are external urls on your website and you want to followed or indexed by search engine.

There are two parameters; "index" and "follow".

"Index" refers to whether or not you want that particular page to be indexed.

"Follow" refers to whether or not you want the spider to follow the links on that page.

You would decide whether you wanted the page indexed, and whether you wanted the links followed. Based on that decision, you would chose one of the above options

This is very important for SEO.

eg: http://sitejabber.com is a external link on your website, then in html of the link.

<a href="http://sitejabber.com" rel=" noindex , nofollow" target="_blank">Click here</a>

or

<a href="http://sitejabber.com" rel="index , nofollow" target="_blank">Click here</a>

Robot metatags

2012-10-04T06:15:00.001-07:00

About the Robots <META> tag

In a nutshell

You can use a special HTML <META> tag to tell robots not to index the content of a page, and/or not scan it for links to follow.
For example:

<html>
<head>
<title>...</title>
<META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW">
</head>

There are two important considerations when using the robots <META> tag:

robots can ignore your <META> tag. Especially malware robots that scan the web for security vulnerabilities, and email address harvesters used by spammers will pay no attention.
the NOFOLLOW directive only applies to links on this page. It's entirely likely that a robot might find the same links on some other page without a NOFOLLOW (perhaps on some other site), and so still arrives at your undesired page.

Don't confuse this NOFOLLOW with the rel="nofollow" link attribute.

The details

Like the /robots.txt, the robots META tag is a de-facto standard. It originated from a "birds of a feather" meeting at a1996 distributed indexing workshop, and was described in meeting notes.
The META tag is also described in the HTML 4.01 specification, Appendix B.4.1.
The rest of this page gives an overview of how to use the robots <META> tags in your pages, with some simple recipes. To learn more see also the FAQ.

How to write a Robots Meta Tag

Where to put it

Like any <META> tag it should be placed in the HEAD section of an HTML page, as in the example above. You should put it in every page on your site, because a robot can encounter a deep link to any page on your site.

What to put into it

The "NAME" attribute must be "ROBOTS".
Valid values for the "CONTENT" attribute are: "INDEX", "NOINDEX", "FOLLOW", "NOFOLLOW". Multiple comma-separated values are allowed, but obviously only some combinations make sense. If there is no robots <META> tag, the default is "INDEX,FOLLOW", so there's no need to spell that out. That leaves:

<META NAME="ROBOTS" CONTENT="NOINDEX, FOLLOW">
<META NAME="ROBOTS" CONTENT="INDEX, NOFOLLOW">
<META NAME="ROBOTS" CONTENT="NOINDEX, NOFOLLOW">

To secure specific urls of a website

2012-10-04T06:14:00.003-07:00

Sometimes we need some urls https and others http, This can also done bye htaccess easily.

### AR SSL ######
RewriteEngine on 
Options +FollowSymlinks 
RewriteCond %{SERVER_PORT} ^443$ 
RewriteRule ^robots.txt$ robots_ssl.txt

In robot.txt i have given the some specific folder path or some file type which can be allow or disallow to a visitor

robot.txt:

# allow all
User-agent: *

Disallow: /backup/
Disallow: /site/
Disallow: /*.php
Disallow: /*% 
Disallow: /*?

robot_ssl.txt

# SSL robots

User-agent: *
Disallow: / 

#User-agent: *
Allow: /signup/
Allow: /register/
Allow: /user/forgotpass/

So signup, forgot password and login page would be https and others would be http.

please give feedback if you want to.

To restrict files acess on server from htaccess

2012-10-04T06:14:00.001-07:00

There should be security on your web server to restrict the access of some file types. This can be done by htaccess file.

# Exclude file types # AR 26/6/2012
<FilesMatch "\.(htaccess|htpasswd|ini|log|sh|inc|bak|tar|gz|sql|zip)$">
Order Allow,Deny
Deny from all
</FilesMatch>

Enjoy!

Add trails in all urls of website

2012-10-04T06:13:00.001-07:00

Google search is very much based on '/' in the url's end. We can do it easily with htaccess. Here is the code.

### AR add trailing slash ######
RewriteBase /
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_URI} !(.*)/$
RewriteRule ^(.*)$ http://www.example.com/$1/ [L,R=301]

Hope this would be useful for you!!

How to menu execute active handler in drupal

2012-09-04T06:29:00.002-07:00

menu_execute_active_handler
5 menu.inc     menu_execute_active_handler()
6 menu.inc     menu_execute_active_handler($path = NULL)
7 menu.inc     menu_execute_active_handler($path = NULL, $deliver = TRUE)

Execute the page callback associated with the current path.
Parameters

$path: The drupal path whose handler is to be be executed. If set to NULL, then the current path is used.

$deliver: (optional) A boolean to indicate whether the content should be sent to the browser using the appropriate delivery callback (TRUE) or whether to return the result to the caller (FALSE).
Related topics

Menu system
    Define the navigation menus, and route page requests to code based on URLs.

3 calls to menu_execute_active_handler()

Ubercart 3 Module List

2012-07-18T23:32:00.003-07:00

I have compiled a list of Ubercart 3 compatible modules. I haven't gone through the tested all the module as thats a huge task. Also please beware the some of these might be in dev status and not fully functional or just being ported.

If you notice any missing modules please edit this page and add it in.

Adyen Ubercart Payment
This module provides an Ubercart payment method to embed the payment services provided by Adyen VIEW THIS MODULE
Agreservations
The agreservations-module is a module to handle reservations of resources. VIEW THIS MODULE
Ajax Blocks
Permits to load some blocks by additional AJAX request after loading the whole cached page when the page is viewed by anonymous user. VIEW THIS MODULE
Alipay
Alipay is a popular Chinese payment gateway. This module provides support for it. Ubercart required. VIEW THIS MODULE
Attribute Stock
This modules works with attributes of products. It allows you to combine several attributes info one and keep track of stock level. VIEW THIS MODULE
Authorize.Net SIM/DPM Payment Methods
The Ubercart Authorize.Net SIM/DPM Payment Methods module provides two additional payment methods to Ubercart for users of the Authorize.Net payment processing service. VIEW THIS MODULE
Balance Tracker
Balance Tracker creates a balance sheet to display account credits and debits belonging to users. VIEW THIS MODULE
Bank Transfer
This module provides an Ubercart payment method. It helps to display the shop's bank account details to the customer so a direct money transfer can be initiated by the customer. VIEW THIS MODULE
Brazilian Payments for Ubercart
Brazilian Payments for Ubercart will integrate the main payments gateways used in brazilian market to Ubercart project. This module will support Drupal 7 and up versions. VIEW THIS MODULE
Canada Post
This module is used to obtain Canada Post shipping quotes for Ubercart. VIEW THIS MODULE
Canpar Shipping Quotes
This module allows Ubercart to obtain shipping quotes from Canpar. It supports both the Canpar base rates and your shipper account-specific custom rates. VIEW THIS MODULE
Colorbox
Colorbox is a light-weight, customizable lightbox plugin for jQuery 1.3 through 1.6. This module allows for integration of Colorbox into Drupal. VIEW THIS MODULE
Course
Allows any content-type to be used as an e-learning course, containing any number of graded or ungraded course objects. VIEW THIS MODULE
Crumbs
Crumbs is a new approach to give your Drupal site a consistent and flexibly customized pattern of breadcrumbs. VIEW THIS MODULE
Dotpay
Module integrating Polish payment system Dotpay.pl with Ubercart. VIEW THIS MODULE
Dynamic display block
Dynamic display block slideshows are mainly used to showcase featured content at a prominent place on the frontpage of the site in an attractive way. VIEW THIS MODULE
Early Bird Discount
This is a discount module for Ubercart which allows for date-based discounts without coupon codes that can be set per node at product creation. VIEW THIS MODULE
Easyrec
This module integrates the product recommender functionality of easyrec into an ubercart shop. VIEW THIS MODULE
EMS Russian post shipping
EMS Russian Post shipping module for Ubercart. VIEW THIS MODULE
eWay Payment Gateway
Ubercart integration with the Australia payment gateway eWay, VIEW THIS MODULE

Extra Fields Checkout Pane
This modules allows an administrator to define additional (billing and shipping) address fields (i.e. VAT) as well as custom order fields in Ubercart e-commerce suite. These fields will be available during checkout process and in order handling pages. VIEW THIS MODULE
FedEx Shipping
Shipping quote module for Ubercart that uses the FedEx Web Services API to get rate quotes directly from the FedEx server. VIEW THIS MODULE
Field attributes
This module links Ubercart's attribute system to Drupal core's fields API and allows to automatically create product attributes from fields and options from themulti-values. VIEW THIS MODULE
Forgotten Login
"Forgotten Login", monitors and reacts to failed logins. VIEW THIS MODULE
Global Quote
Ubercart Shipping quote module that provides custom shipping quotes based on configurable weight ranges and custom shipping zones. VIEW THIS MODULE
Google Analytics
Adds the Google Analytics web statistics tracking system to your website. VIEW THIS MODULE
Hotel Booking System
he uc_hotel module is a hotel booking system for Drupal and Ubercart. VIEW THIS MODULE
iDEAL
Allows users to make bank transfers between Dutch bank accounts using the the iDEAL payment API. VIEW THIS MODULE
Is Useful
Adds iTunes/Amazon.com style "Was this useful?" ratings to entities. VIEW THIS MODULE
jQZoom
The jQZoom module is a wrapper for the jQuery plugin jQZoom. The module provides a javascript magnification effect for images. When a user mouses over an image, a larger version of the area under the cursor will be displayed beside the image. VIEW THIS MODULE
Node access product
Provides 'Node access' settings for product nodes, whereby users who purchase the product are granted view access to content, which can be predefined either by taxonomy, by node, or by Views. VIEW THIS MODULE
Package Tracking
This module lets your customer (or you, the admin) track shipped packages. VIEW THIS MODULE
Pay-per-node
This module allows creation of a number of nodes of chosen type for some users. VIEW THIS MODULE
Payment
A general payment platform which allows other modules to use any of the payment methods that plug into Payment. VIEW THIS MODULE
Payonline.ru payment for Ubercart VIEW THIS MODULE
Products Recommender
This module provides two default views. Users who ordered this product also ordered and Personal recommendation based on your previous purchase. VIEW THIS MODULE
Quickbooks Merchant Service
This module provides a credit cart payment gateway for the uc_credit module through Quickbooks Merchant Services (QBMS) for Web Store. This is NOT full Quickbook integration. This module simply processes credit cards through QMBS for a merchant with a QBMS account. VIEW THIS MODULE
Reorder button for Ubercart
Repeat customers are your best customers; you can rely on them to keep coming back to your store so long as you provide the goods or services they need. VIEW THIS MODULE
Simplenews subscription
Provide a simplenews newsletter subscription pane for the ubercart checkout. VIEW THIS MODULE
Stripe
Aiming at some stripe (https://stripe.com/) integration. All are welcome to help out. VIEW THIS MODULE
Ubercart Addresses
The uc_addresses module adds support for one or more addresses in the user's profile. VIEW THIS MODULE
Ubercart Affiliate v2
This (uc_affiliate2) is a module providing affiliate functionality for Ubercart. VIEW THIS MODULE
Ubercart Attribute Files
This module allows you to create file upload attributes for Ubercart. Potential uses include print-shops where the user must upload an image prior to checkout. VIEW THIS MODULE
Ubercart attributes in cart
This module allows site administrators using the Ubercart and its Attribute modules to let their visitors change attributes of products they have added to their cart on their cart page. VIEW THIS MODULE
Ubercart Auction
This module allows you to auction off products in your Ubercart store. When a product is put up for auction, users can no longer add the item to their cart, but they may place bids on it until the auction expires. VIEW THIS MODULE
Ubercart Barclays EPDQ payment gateway
Integrate Barclays EPDQ payment gateway service. VIEW THIS MODULE
Ubercart Cart Login Flow
This module provides different behaviors, depending on the source of the user when logs in. VIEW THIS MODULE
Ubercart Checkout.fi Payment Method
This module implements Finnish Checkout.fi payment gateway as an Ubercart payment method. VIEW THIS MODULE
Ubercart Custom Price
The initial idea of this module was to allow custom PHP code to be associated with a product in order to adjust the price of the product. VIEW THIS MODULE
Ubercart Discount Coupons
This module provides discount coupons for Ubercart stores. VIEW THIS MODULE
Ubercart Google Merchant Integration
The Ubercart Google Merchant Integration module allows you to fully integrate your ubercart products with Google Merchant. VIEW THIS MODULE
Ubercart MIGS Gateway
MIGS (MasterCard Internet Gateway Service) 3-party payment processor for Ubercart. VIEW THIS MODULE
Ubercart Optional Checkout Review
Makes the review button on the Ubercart checkout page optional (set by store admin). VIEW THIS MODULE
Ubercart Payment Method Adjustments
uc_pma is an add-on module for the Ubercart e-commerce suite. The Drupal 5 version is compatible with Ubercart 1.0 rc2 and above. The Drupal 6 version has been tested with Ubercart 2.0 rc7. VIEW THIS MODULE
Ubercart Product Actions
This simple module aims to assist Ubercart shop managers with making mass-changes (bulk update / blanket changes) to product data, including weight and prices, by implementing Drupal Actions which can be used in custom code or in conjunction with the excellent Views Bulk Operations (VBO) module. VIEW THIS MODULE
Ubercart Product Checkout Panes
Specify which panes should appear during checkout either by product class or for any specific product. VIEW THIS MODULE
Ubercart Product Minimum & Maximum
Ubercart compatible module. Adds minimum, maximum and order in multiples limits on products. Checks that the quantity selected matches the limits during both Add To Cart and Checkout actions. Quantity checks are disabled when product is added to the cart as part of a product kit. VIEW THIS MODULE
Ubercart Realex
This module provides an Ubercart payment method for the Realex payment gateway. VIEW THIS MODULE
Ubercart Restrictions
This module will do its best to prevent the wrong sort of people from ordering the wrong sort of goods, or to ship them to the wrong kinds of places. VIEW THIS MODULE
Ubercart Sage Pay
This module allowsUbercart to accept credit card payments via Sage Pay without redirecting the user offsite. VIEW THIS MODULE
Ubercart Sermepa Payment Systems
View Version control Revisions Posted by pcambra on November 11, 2009 at 7:23pm his module gathers payment methods for spanish banks that use Sermepa systems. VIEW THIS MODULE
Ubercart Terms of Service
This module includes an Terms of Service text (aka terms and conditions) and a [x] I agree with the Terms of Service checkbox for the cart or the checkout page of the purchase using Ubercart. VIEW THIS MODULE
Ubercart Webform Checkout Pane
This module allows you to define Webform nodes as checkout/order panes in Ubercart. VIEW THIS MODULE
UC Add to Cart Block
Site admins that want to make use of the "Add to Cart" form without using Views or forcibly typing in the PHP to load it, this module is for you. This module creates a simple "Add to Cart" block which can be re-used anywhere in the site, including in Panels! VIEW THIS MODULE
UC Bitcoin
A Bitcoin payment method for the Ubercart shopping cart based on Mike Gogulski's creation. VIEW THIS MODULE
UC CiviCRM
Ubercart and CiviCRM integration. VIEW THIS MODULE
UC Dropdown Attributes
Ubercart uses attributes for specifying variations for a product. Attributes can specify color or size of a article of clothing or they can specify different sizes of a product, each with their own price and SKU. VIEW THIS MODULE
UC Free Order Payment Method
The UC Free Order Payment Method module works in conjunction with the payment checkout pane using the order total preview to present a "Free order" payment method to customers when their order total drops to $0.00 or less. VIEW THIS MODULE
UC GoPay
Integration of the GoPay payment gateway to Übercart. The GoPay payment gateway could be currently used at e-shops in the Czech and Slovak Republic and accepts transaction in CZK. VIEW THIS MODULE
UC Panels
This module provides basic integration of Ubercart with CTools and Panels. This is a port to Drupal 7 and the latest CTools API originally posted by LPCA in #658732: Ubercart in Panels. VIEW THIS MODULE
UC PayGate
Payment redirect page for Ubercart using PayGate VIEW THIS MODULE
UC Price Visibility
Often, you want to advertise your products without revealing the prices, and show something like, "contact us for pricing." This Ubercart module allows you to show or hide product pricing per role, on a product-by-product basis. VIEW THIS MODULE
UC Product Power Tools
Product "Power Tools" for Ubercart gives the store admin a number of options for altering the product creation form. VIEW THIS MODULE
UC Sage Payments Gateway
Ubercart Payment Gateway for Sage Payment Solutions. VIEW THIS MODULE
UC Shipwire (Order Fulfillment)
This module provides shipping integration for Ubercart and Shipwire. It currently supports all 4 API methods from ShipWire: VIEW THIS MODULE
Who Bought What|Ubercart
INITIAL VERSION 7 now available. Trying to release it with Git, otherwise, find it in the issues This is for Ubercart. If you are using Ubercart to sell tickets or entries to an event or perhaps a race, it's very helpful to have a list, per item, of who bought what. For a competition, this will become an entry list. For a performance, this may become your will-call attendance list. VIEW THIS MODULE

How to view result for Computing a field from a view

2012-07-18T21:09:00.003-07:00

 // Views handles this page
  $view = views_get_view('view name');
  $view->set_display('default');
  $view->set_arguments(array($tid));
  $view->sort_form = $sort_form;
  // apply the 'Topics per page' setting from core Forum
  $view->display['default']->handler->options['items_per_page']=$forum_per_page;

$view->execute();

foreach($view->result as $row){

/**

* DO YOUR STUFF HERE

*/

Here is the list of 43 short tips you can use for writing an optimized and more efficient PHP code:

2012-07-16T20:54:00.001-07:00

Here is the list of 43 short tips you can use for writing an optimized and more efficient PHP code:

If a method can be static, declare it static. Speed improvement is by a factor of 4.
echo is faster than print.
Use echo's multiple parameters instead of string concatenation.
Set the maxvalue for your for-loops before and not in the loop.
Unset your variables to free memory, especially large arrays.
Avoid magic like __get, __set, __autoload
require_once() is expensive
Use full paths in includes and requires, less time spent on resolving the OS paths.
If you need to find out the time when the script started executing, INSERT:CONTENT:END SERVER['REQUEST_TIME'] is preferred to time()
See if you can use strncasecmp, strpbrk and stripos instead of regex
str_replace is faster than preg_replace, but strtr is faster than str_replace by a factor of 4
If the function, such as string replacement function, accepts both arrays and single characters as arguments, and if your argument list is not too long, consider writing a few redundant replacement statements, passing one character at a time, instead of one line of code that accepts arrays as search and replace arguments.
It's better to use select statements than multi if, else if, statements.
Error suppression with @ is very slow.
Turn on apache's mod_deflate
Close your database connections when you're done with them
$row['id'] is 7 times faster than $row[id]
Error messages are expensive
Do not use functions inside of for loop, such as for ($x=0; $x < count($array); $x) The count() function gets called each time.
Incrementing a local variable in a method is the fastest. Nearly the same as calling a local variable in a function.
Incrementing a global variable is 2 times slow than a local var.
Incrementing an object property (eg. $this->prop++) is 3 times slower than a local variable.
Incrementing an undefined local variable is 9-10 times slower than a pre-initialized one.
Just declaring a global variable without using it in a function also slows things down (by about the same amount as incrementing a local var). PHP probably does a check to see if the global exists.
Method invocation appears to be independent of the number of methods defined in the class because I added 10 more methods to the test class (before and after the test method) with no change in performance.
Methods in derived classes run faster than ones defined in the base class.
A function call with one parameter and an empty function body takes about the same time as doing 7-8 $localvar++operations. A similar method call is of course about 15 $localvar++ operations.
Surrounding your string by ' instead of “ will make things interpret a little faster since php looks for variables inside ”..." but not inside '...'. Of course you can only do this when you don't need to have variables in the string.
When echoing strings it's faster to separate them by comma instead of dot. Note: This only works with echo, which is a function that can take several strings as arguments.
A PHP script will be served at least 2-10 times slower than a static HTML page by Apache. Try to use more static HTML pages and fewer scripts.
Your PHP scripts are recompiled every time unless the scripts are cached. Install a PHP caching product to typically increase performance by 25-100% by removing compile times.
Cache as much as possible. Use memcached - memcached is a high-performance memory object caching system intended to speed up dynamic web applications by alleviating database load. OP code caches are useful so that your script does not have to be compiled on every request
When working with strings and you need to check that the string is either of a certain length you'd understandably would want to use the strlen() function. This function is pretty quick since it's operation does not perform any calculation but merely return the already known length of a string available in the zval structure (internal C struct used to store variables in PHP). However because strlen() is a function it is still somewhat slow because the function call requires several operations such as lowercase & hashtable lookup followed by the execution of said function. In some instance you can improve the speed of your code by using an isset() trick.
Example:if (strlen($foo) < 5) { echo "Foo is too short"; }

vs.

if (!isset($foo{5})) { echo "Foo is too short"; }

Calling isset() happens to be faster then strlen() because unlike strlen(), isset() is a language construct and not a function meaning that it's execution does not require function lookups and lowercase. This means you have virtually no overhead on top of the actual code that determines the string's length.
When incrementing or decrementing the value of the variable $i++ happens to be a tad slower then ++$i. This is something PHP specific and does not apply to other languages, so don't go modifying your C or Java code thinking it'll suddenly become faster, it won't. ++$i happens to be faster in PHP because instead of 4 opcodes used for $i++ you only need 3. Post incrementation actually causes in the creation of a temporary var that is then incremented. While pre-incrementation increases the original value directly. This is one of the optimization that opcode optimized like Zend's PHP optimizer. It is a still a good idea to keep in mind since not all opcode optimizers perform this optimization and there are plenty of ISPs and servers running without an opcode optimizer.
Not everything has to be OOP, often it is too much overhead, each method and object call consumes a lot of memory.
Do not implement every data structure as a class, arrays are useful, too
Don't split methods too much, think, which code you will really re-use
You can always split the code of a method later, when needed
Make use of the countless predefined functions
If you have very time consuming functions in your code, consider writing them as C extensions
Profile your code. A profiler shows you, which parts of your code consumes how many time. The Xdebug debugger already contains a profiler. Profiling shows you the bottlenecks in overview
mod_gzip which is available as an Apache module compresses your data on the fly and can reduce the data to transfer up to 80%
Excellent Article about optimizing php by John Lim

8 Practical PHP Regular Expressions

2012-07-16T20:53:00.003-07:00

8 Practical PHP Regular Expressions

Validating a Username:

Quote: Something often overlooked, but simple to do with a regular expression would be username validation. For example, we may want our usernames to be between 4 and 28 characters in length, alpha-numeric, and allow underscores. PHP Code: $string = "userNaME4234432_";
if (preg_match('/^[a-z\d_]{4,28}$/i', $string)) {
echo "example 1 successful.";
}
Telephone Numbers:

Quote: Number in the following form: (###) ###-#### PHP Code: $string = "(232) 555-5555";
if (preg_match('/^($?[0-9]{3,3}$?|[0-9]{3,3}[-. ]?)[ ][0-9]{3,3}[-. ]?[0-9]{4,4}$/', $string)) {
echo "example 2 successful.";
}
Emails:

PHP Code: $string = "first.last@domain.co.uk";
if (preg_match(
'/^[^0-9][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[@][a-zA-Z0-9_]+([.][a-zA-Z0-9_]+)*[.][a-zA-Z]{2,4}$/',
$string)) {
echo "example 3 successful.";
}
Postal Codes:

PHP Code: $string = "55324-4324";
if (preg_match('/^[0-9]{5,5}([- ]?[0-9]{4,4})?$/', $string)) {
echo "example 4 successful.";
}
Ip Address:

PHP Code: $string = "255.255.255.0";
if (preg_match(
'^(?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)(?:[.](?:25[0-5]|2[0-4]\d|1\d\d|[1-9]\d|\d)){3}$',
$string)) {
echo "example 5 successful.";
}
Hexadecimal Colors:

PHP Code: $string = "#666666";
if (preg_match('/^#(?:(?:[a-f\d]{3}){1,2})$/i', $string)) {
echo "example 6 successful.";
}
Multi-line Comments:

PHP Code: $string = "/* commmmment */";
if (preg_match('/^[(/*)+.+(*/)]$/', $string)) {
echo "example 7 successful.";
}
Dates:

Quote: MM/DD/YYYY format PHP Code: $string = "10/15/2007";
if (preg_match('/^\d{1,2}\/\d{1,2}\/\d{4}$/', $string)) {
echo "example 8 successful.";
}
Some might be more/less useful than the others but that will depend on the project you are working on.

How to Install Node.js Essay Steps

2012-07-16T20:53:00.001-07:00

This was the first in a series of posts leading up to Node.js Knockout on how to use node.js.

I have been given permission to repost the articles from the contest here (in wheat format) for general consumption. Expect more to come.

In this post we detail how to install node on Mac, Ubuntu, and Windows.

Mac

If you're using the excellent homebrew package manager, you can install node with one command: brew install node.

Otherwise, follow the below steps:

Install Xcode.
Install git.
Run the following commands:

darwin_setup.sh

git clone git://github.com/ry/node.git cd node ./configure make sudo make install

You can check it worked with a simple Hello, World! example.

Ubuntu

Install the dependencies:
- sudo apt-get install g++ curl libssl-dev apache2-utils
- sudo apt-get install git-core
Run the following commands:

ubuntu_setup.sh

git clone git://github.com/ry/node.git cd node ./configure make sudo make install

Step 3 - Install NPM

Simply run the NPM install script:

curl http://npmjs.org/install.sh | sudo sh

And then check it works:

npm -v

You can check it worked with a simple Hello, World! example.

Thanks to code-diesel for the Ubuntu dependencies.

Windows

Currently, you must use cygwin to install node. To do so, follow these steps:

Install cygwin.
Use setup.exein the cygwin folder to install the following packages:
- devel → openssl
- devel → g++-gcc
- devel → make
- python → python
- devel → git
Open the cygwin command line with Start > Cygwin > Cygwin Bash Shell.
Run the below commands to download and build node.

cygwin_setup.sh

git clone git://github.com/ry/node.git cd node ./configure make sudo make install

For more details, including information on troubleshooting, please see the GitHub wiki page.

Hello Node.js!

Here's a quick program to make sure everything is up and running correctly:

hello_node.js

var http = require('http'); http.createServer(function (req, res) {   res.writeHead(200, {'Content-Type': 'text/plain'});   res.end('Hello Node.js\n'); }).listen(8124, "127.0.0.1"); console.log('Server running at http://127.0.0.1:8124/');

Run the code with the node command line utility:

> node hello_node.js Server running at http://127.0.0.1:8124/

Now, if you navigate to http://127.0.0.1:8124/ in your browser, you should see a nice message.

Congrats!

You've installed node.js.

Installing Node.js and NPM on Ubuntu/Debian

2012-07-16T20:52:00.003-07:00

his is just short snippet on how to install Node.js (any version) and NPM (Node Package Manager) on your Ubuntu/Debian system.

Step 1 - Update your system

sudo apt-get update
sudo apt-get install git-core curl build-essential openssl libssl-dev

Step 2 - Install Node.js

First, clone the Node.js repository:

git clone https://github.com/joyent/node.git
cd node

Now, if you require a specific version of Node:

git tag # Gives you a list of released versions
git checkout v0.4.12

Then compile and install Node like this:

./configure
make
sudo make install

Then, check if node was installed correctly:

node -v

Step 3 - Install NPM

Simply run the NPM install script:

curl http://npmjs.org/install.sh | sudo sh

And then check it works:

npm -v

That's all.

Node.js integration to Drupal.

2012-07-16T20:52:00.001-07:00

Node.js integration to Drupal.

Node.js integration
===================

This module adds Node.js integration to Drupal.

Setup
=====

1. Install Node.js.

Installing Node.js and NPM on Ubuntu/Debian

How to Install Node.js

2. Install required Node.js modules with the Node Package Manager (NPM).

Make sure you are in the nodejs module directory - NPM needs the package.json
file that comes with the nodejs module to install the right modules.

cd path/to/your/nodejs/module/directory
npm install
npm uninstall express
npm install express@2.5.9

3. Create a 'nodejs.config.js' file in your nodejs module directory.

Read the 'nodejs.config.js.example' file. A basic configuration can be as simple as:

/**
* This configuration file was built using the 'Node.js server configuration builder'.
* For a more fully commented example see the file nodejs.config.js.example in the root of this module
*/
backendSettings = {
"scheme":"http",
"host":"192.168.1.61",
"port":8080,
"key":"/path/to/key/file",
"cert":"/path/to/cert/file",
"resource":"/socket.io",
"publishUrl":"publish",
"serviceKey":"",
"backend":{
"port":80,
"host":"localhost",
"messagePath":"/drupal7/nodejs/message/"},
"clientsCanWriteToChannels":false,
"clientsCanWriteToClients":false,
"extensions":"",
"debug":true,
"transports":["websocket",
"flashsocket",
"htmlfile",
"xhr-polling",
"jsonp-polling"],
"jsMinification":true,
"jsEtag":true,
"logLevel":1};

Set debug to false when you are happy with your setup.

4. Run the node server with the command: node server.js

As long as you have 'debug: true' in your configuration file, you'll see lots of helpful messages.

Installing node.js on Drupal

2012-07-12T21:21:00.000-07:00

The node.js module (www.drupal.org/project/nodejs) is a great way to get node.js working with your Drupal installation. Although the README.txt file is verbose, I had problems getting everything working. Below are instructions that I believe are a little clearer.

Make sure your system has the programs that node.js needs
sudo apt-get install build-essential git curl openssl libssl-dev -y
Install node.js
mkdir -p ~/local/src
cd ~/local/src
git clone https://github.com/joyent/node.git
cd node
./configure
1. If openssl is showing as not found:
  sudo apt-get install pkg-config
  pkg-config openssl --cflags --libs
  ./configure
2. Now you should run make and make install
  make && make install
Run
sudo curl http://npmjs.org/install.sh | sh
cd /path/to/nodejs/module
npm install
1. If npm install give you multiple errors about the connect or express modules then you probably installed an unstable version on node.js. Refer the the Problems section below to get this fixed!
Enable the Nodejs Integration module from your drupal site or using drush en nodejs
1. You should also enable the Nodejs Config module for clearer config options (drush cc all when enabled).
2. Host, by default, is set to localhost. If you are not working locally set it to your sites IP address.
In your nodejs module directory, copy nodejs.config.js.example to nodejs.config.js
1. cp nodejs.config.js.example nodejs.config.js.
2. If you used the Nodejs Config module, overwrite nodejs.config.js with the output it generated for you.
Run the command:
node server.js

If you don't get an error here you are done! The output I received was "info - socket.io started" so I know the server was running.

Problems

If you tried to run npm install and receive multiple error messages then you probably have an unstable version. Visit http://nodejs.org/#download and download the latest stable version. Unzip and untar it in ~/local/src/ (tar -zxvf [filename]). remove your previous node directory and rename your new directory "node".

./configure
make && make install

Now repeat step 3 above. If you still are getting errors with connect and/or express, download the suggested version of each package:
The error message will say something like requires connect@'>=1.5.7' this means you should run the command

npm install connect@1.5.7

If you get an error here saying that your version of node is not compatible, then you still have an unstable version!

Test Credit Card Account Numbers

2012-07-12T21:16:00.002-07:00

While testing, use only the credit card numbers listed here. Other numbers produce an error.

Expiration Date must be a valid date in the future (use the mmyy format).

Test Credit Card Account Numbers

Credit Card Type	Credit Card Number
American Express	378282246310005
American Express	371449635398431
American Express Corporate	378734493671000
Australian BankCard	5610591081018250
Diners Club	30569309025904
Diners Club	38520000023237
Discover	6011111111111117
Discover	6011000990139424
JCB	3530111333300000
JCB	3566002020360505
MasterCard	5555555555554444
MasterCard	5105105105105100
Visa	4111111111111111
Visa	4012888888881881
Visa	4222222222222 Note : Even though this number has a different character count than the other test numbers, it is the correct and functional number.
Processor-specific Cards
Dankort (PBS)	76009244561
Dankort (PBS)	5019717010103742
Switch/Solo (Paymentech)	6331101999990016

Test Credit Card Account Numbers

2012-07-12T21:16:00.000-07:00

While testing, use only the credit card numbers listed here. Other numbers produce an error.

Expiration Date must be a valid date in the future (use the mmyy format).

Test Credit Card Account Numbers

Credit Card Type	Credit Card Number
American Express	378282246310005
American Express	371449635398431
American Express Corporate	378734493671000
Australian BankCard	5610591081018250
Diners Club	30569309025904
Diners Club	38520000023237
Discover	6011111111111117
Discover	6011000990139424
JCB	3530111333300000
JCB	3566002020360505
MasterCard	5555555555554444
MasterCard	5105105105105100
Visa	4111111111111111
Visa	4012888888881881
Visa	4222222222222 Note : Even though this number has a different character count than the other test numbers, it is the correct and functional number.
Processor-specific Cards
Dankort (PBS)	76009244561
Dankort (PBS)	5019717010103742
Switch/Solo (Paymentech)	6331101999990016

Test Credit Card Account Numbers

2012-07-12T21:15:00.003-07:00

While testing, use only the credit card numbers listed here. Other numbers produce an error.

Expiration Date must be a valid date in the future (use the mmyy format).

Test Credit Card Account Numbers

Credit Card Type	Credit Card Number
American Express	378282246310005
American Express	371449635398431
American Express Corporate	378734493671000
Australian BankCard	5610591081018250
Diners Club	30569309025904
Diners Club	38520000023237
Discover	6011111111111117
Discover	6011000990139424
JCB	3530111333300000
JCB	3566002020360505
MasterCard	5555555555554444
MasterCard	5105105105105100
Visa	4111111111111111
Visa	4012888888881881
Visa	4222222222222 Note : Even though this number has a different character count than the other test numbers, it is the correct and functional number.
Processor-specific Cards
Dankort (PBS)	76009244561
Dankort (PBS)	5019717010103742
Switch/Solo (Paymentech)	6331101999990016

How to validate existing url using Curl

2012-07-12T21:15:00.001-07:00

$url = ‘http://google.com’;

$agent = “Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)”;

$ch=curl_init();
curl_setopt ($ch, CURLOPT_URL,$url );
curl_setopt($ch, CURLOPT_USERAGENT, $agent);
curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt ($ch,CURLOPT_VERBOSE,false);
curl_setopt($ch, CURLOPT_TIMEOUT, 5);

$page=curl_exec($ch);

$httpcode = curl_getinfo($ch, CURLINFO_HTTP_CODE);

// print_r(curl_getinfo($ch));die;
curl_close($ch);
if($httpcode>200) {
echo ‘url exist’;
}
else{
echo ‘url not exist’;
}