Guardar imagen en codeigniter

public function guardarImagen($object){

$directorio = IMG_PATH.'/'.$object->directorio.'/';

$nombre_imagen = $object->nombre_imagen;

$ext = $object->ext;

$field_name = $object->field_name;

$config['upload_path'] = $directorio;

$config['allowed_types'] = 'gif|jpg|png';

$config['max_size'] = '15000';

$config['encrypt_name'] = FALSE;

$config['overwrite'] = FALSE;

$config['file_name'] = $nombre_imagen.'.'.$ext;

$this->load->library('upload');

$this->upload->initialize($config);

$data = array();

if(!$this->upload->do_upload($field_name)){

$this->upload->display_errors();

}else{

$data = $this->upload->data();

}

return $data;

}

jQuery Validate img - add method

Create / add a new method:

jQuery.validator.addMethod("imgType", function(value, element) {

var extension = value.substr( (value.lastIndexOf('.') +1) );

    if(extension=='jpg' || extension=='gif' || extension=='png'){

    return true;

}else{

return false;

}

}, "=$this->lang->line('error_img')?>");

rules:{

   inputImg: {required:true,imgType:true}

}

¿Qué sistema operativo móvil está creando más empleo?

¿Qué sistema operativo móvil está creando más empleo?

Free Android Application Development Tutorial - Beginner Level

Free Android Application Development Tutorial - Beginner Level

Start learning android developing

How to do a google static map - tool

How to do a google static map:

You can use Google static map tool for creating maps.

Use multiple custom fonts using @font-face?

You only have to include diferents @font-face


@font-face {
    font-family: CustomFont;
    src: url('CustomFont.ttf');
}

@font-face {
    font-family: CustomFont2;
    src: url('CustomFont2.ttf');
}

Actualizar página en codeigniter

Cambiando las cabeceras conseguimos que se refresque la página sin tener que forzar una recarga de nuestro navegador.

$this->output->set_header("HTTP/1.0 200 OK");

$this->output->set_header("HTTP/1.1 200 OK");

$this->output->set_header('Last-Modified: '.gmdate('D, d M Y H:i:s', $last_update).' GMT');

$this->output->set_header("Cache-Control: no-store, no-cache, must-revalidate");

$this->output->set_header("Cache-Control: post-check=0, pre-check=0");

$this->output->set_header("Pragma: no-cache");

Google maps in codeigniter

 CodeIgniter Google Maps API V3 Class

 Displays a Google Map

 @package CodeIgniter

 @subpackage Libraries

 @category Libraries

 @author BIOSTALL (Steve Marks)

 @link http://biostall.com/codeigniter-google-maps-v3-api-library

 @docs http://biostall.com/wp-content/uploads/2010/07/Google_Maps_V3_API_Documentation.pdf

How do I make a semi transparent background? - css3

use rgba()

.transparent{
background:rgba(255,255,255,0.5);
}
This will give u 50% opacity while the content of the box will continue to have 100% opacity.

How to install mail in ubuntu server

How to install mail in ubuntu:

apt-get install sendmail-bin

 sudo sendmailconfig

Codeigniter's url_title() change UTF8 Characters to specified Latin

Just tie into the convert_accented_characters function:

$this->load->helper('text');
url_title(convert_accented_characters('čolić'));

CodeIgniter global variable

It's not necessary to use global variable in codeigniter, you can do this:

class MY_Controller extends Controller {
  var $data;    
  //constructor function            
}

class Contact extends Controller { //to.. }

class Contact extends MY_Controller {
 $this->load->view('contact_view', $this->data);
}

Apache Restart / Stop

Restart Apache 2 web server, enter:

# /etc/init.d/apache2 restart

If you are using Ubuntu use sudo:

$ sudo /etc/init.d/apache2 restart

To stop Apache 2 web server, enter:

# /etc/init.d/apache2 stop

$ sudo /etc/init.d/apache2 stop

To start Apache 2 web server, enter:

# /etc/init.d/apache2 start

$ sudo /etc/init.d/apache2 start

Downloading file from my server to my local

To download the file "serials.txt" from your remote home dir to the local computer:

scp user@server.com:serials.txt .

To download the remote file "something" using it's full path to your local computer:

scp user@server.com:/path/to/file/something.txt .

Now the tricky part: using the recursive switch (-r) to download a whole folder to your local computer. The issue you may have is that you DO NOT place a trailing forward slash after the directory name. For instance, this command will NOT work (notice the bold forward slash):

scp -r user@server.com:/path/to/directory/ .

This will give you a message saying the server is trying to write to the parent directory. REMOVE the last foward slash on the path and try again. The next command is CORRECT:

scp -r user@server.com:/path/to/directory .

I have been using a period when talking about downloading so far. Reason: this brings the file into the directory you are currently in. If you wish to take the last command and download it to somewhere else, the command would be:

scp -r user@server.com:/path/to/directory /new/local/location/

¿Cómo contar las líneas de un fichero / archivo en linux?

Contar las líneas de un archivo

• $ wc –l archivo