artero/Plugins.md

## plugin_opcion.php
<?php
/*
Plugin Name: Settings API Options Example
Plugin URI: http://www.presscoders.com/
Description: Shows an example implementation of each input field type
Author: David Gwyer
Author URI: http://www.presscoders.com/
*/

// Specify Hooks/Filters
register_activation_hook(__FILE__, 'add_defaults_fn');
add_action('admin_init', 'sampleoptions_init_fn' );
add_action('admin_menu', 'sampleoptions_add_page_fn');

// Define default option settings
function add_defaults_fn() {
	$tmp = get_option('plugin_options');
    if(($tmp['chkbox1']=='on')||(!is_array($tmp))) {
		$arr = array("dropdown1"=>"Orange", "text_area" => "Space to put a lot of information here!", "text_string" => "Some sample text", "pass_string" => "123456", "chkbox1" => "", "chkbox2" => "on", "option_set1" => "Triangle");
		update_option('plugin_options', $arr);
	}
}

// Register our settings. Add the settings section, and settings fields
function sampleoptions_init_fn(){
	register_setting('plugin_options', 'plugin_options', 'plugin_options_validate' );
	add_settings_section('main_section', 'Main Settings', 'section_text_fn', __FILE__);
	add_settings_field('plugin_text_string', 'Text Input', 'setting_string_fn', __FILE__, 'main_section');
	add_settings_field('plugin_text_pass', 'Password Text Input', 'setting_pass_fn', __FILE__, 'main_section');
	add_settings_field('plugin_textarea_string', 'Large Textbox!', 'setting_textarea_fn', __FILE__, 'main_section');
	add_settings_field('plugin_chk2', 'A Checkbox', 'setting_chk2_fn', __FILE__, 'main_section');
	add_settings_field('radio_buttons', 'Select Shape', 'setting_radio_fn', __FILE__, 'main_section');
	add_settings_field('drop_down1', 'Select Color', 'setting_dropdown_fn', __FILE__, 'main_section');
	add_settings_field('plugin_chk1', 'Restore Defaults Upon Reactivation?', 'setting_chk1_fn', __FILE__, 'main_section');
}

// Add sub page to the Settings Menu
function sampleoptions_add_page_fn() {
	add_options_page('Options Example Page', 'Options Example', 'administrator', __FILE__, 'options_page_fn');
}

// ************************************************************************************************************

// Callback functions

// Section HTML, displayed before the first option
function  section_text_fn() {
	echo '<p>Below are some examples of different option controls.</p>';
}

// DROP-DOWN-BOX - Name: plugin_options[dropdown1]
function  setting_dropdown_fn() {
	$options = get_option('plugin_options');
	$items = array("Red", "Green", "Blue", "Orange", "White", "Violet", "Yellow");
	echo "<select id='drop_down1' name='plugin_options[dropdown1]'>";
	foreach($items as $item) {
		$selected = ($options['dropdown1']==$item) ? 'selected="selected"' : '';
		echo "<option value='$item' $selected>$item</option>";
	}
	echo "</select>";
}

// TEXTAREA - Name: plugin_options[text_area]
function setting_textarea_fn() {
	$options = get_option('plugin_options');
	echo "<textarea id='plugin_textarea_string' name='plugin_options[text_area]' rows='7' cols='50' type='textarea'>{$options['text_area']}</textarea>";
}

// TEXTBOX - Name: plugin_options[text_string]
function setting_string_fn() {
	$options = get_option('plugin_options');
	echo "<input id='plugin_text_string' name='plugin_options[text_string]' size='40' type='text' value='{$options['text_string']}' />";
}

// PASSWORD-TEXTBOX - Name: plugin_options[pass_string]
function setting_pass_fn() {
	$options = get_option('plugin_options');
	echo "<input id='plugin_text_pass' name='plugin_options[pass_string]' size='40' type='password' value='{$options['pass_string']}' />";
}

// CHECKBOX - Name: plugin_options[chkbox1]
function setting_chk1_fn() {
	$options = get_option('plugin_options');
	if($options['chkbox1']) { $checked = ' checked="checked" '; }
	echo "<input ".$checked." id='plugin_chk1' name='plugin_options[chkbox1]' type='checkbox' />";
}

// CHECKBOX - Name: plugin_options[chkbox2]
function setting_chk2_fn() {
	$options = get_option('plugin_options');
	if($options['chkbox2']) { $checked = ' checked="checked" '; }
	echo "<input ".$checked." id='plugin_chk2' name='plugin_options[chkbox2]' type='checkbox' />";
}

// RADIO-BUTTON - Name: plugin_options[option_set1]
function setting_radio_fn() {
	$options = get_option('plugin_options');
	$items = array("Square", "Triangle", "Circle");
	foreach($items as $item) {
		$checked = ($options['option_set1']==$item) ? ' checked="checked" ' : '';
		echo "<label><input ".$checked." value='$item' name='plugin_options[option_set1]' type='radio' /> $item</label><br />";
	}
}

// Display the admin options page
function options_page_fn() {
?>
	<div class="wrap">
		<div class="icon32" id="icon-options-general"><br></div>
		<h2>My Example Options Page</h2>
		Some optional text here explaining the overall purpose of the options and what they relate to etc.
		<form action="options.php" method="post">
		<?php settings_fields('plugin_options'); ?>
		<?php do_settings_sections(__FILE__); ?>
		<p class="submit">
			<input name="Submit" type="submit" class="button-primary" value="<?php esc_attr_e('Save Changes'); ?>" />
		</p>
		</form>
	</div>
<?php
}

// Validate user data for some/all of your input fields
function plugin_options_validate($input) {
	// Check our textbox option field contains no HTML tags - if so strip them out
	$input['text_string'] =  wp_filter_nohtml_kses($input['text_string']);
	return $input; // return validated input
}

## Plugins.md

      
    Raw
  

              Plugins.md
            
          
    Plugins

Qtranslate

Pasoso para activa:
1 - Descargar los archivos de idiomas del repositorio de WP
2 - Copiar los archivos de lenguage en wp-content/languages
Si hay problemas en la paginación se puede hacer:

// Elimina la redireccion automatica
remove_action('template_redirect', 'redirect_canonical');
//Filtros para corregir correctamente, segun el idioma, los links las "pages" y los "post"
add_filter('get_pagenum_link', 'qtrans_convertURL');
add_filter('post_type_link', 'qtrans_convertURL');
Funciones interesantes:


Seleccionar idioma: 
Para ver la variable de idioma: 

wpalchemy-metabox

http://www.farinspace.com/wpalchemy-metabox/
Para crear metaboxes de un post-type
CPT-onomies: Using Custom Post Types as Taxonomies

Para usar post-types como taxonomias
http://wordpress.org/extend/plugins/cpt-onomies/
No Future Posts

Para hacer post-types como agendas
http://www.tomsdimension.de/wp-plugins/no-future-posts
[Por probar] Facebook:

https://developers.facebook.com/wordpress/
wp-scb-framework

https://github.com/scribu/wp-scb-framework/wiki
Útil para crear opciones y funcionalidades desde el administrador

  
## post_type_model.php
class model {

	var $name = 'events';
	var $labels = array(
			'labels' => array(
				'name' => 'Eventos',
				'singular_name' => 'Evento',
				'add_new' => 'Nuevo',
				'menu_name' => 'Eventos'
			),
		//'description' => '...',
		'public' => true,
		'has_archive' => true,
		'menu_position' => 9,
		//'menu_icon' => 'http://...',
		'capability_type' => 'post'

		);

	function create_post_type(){
		register_post_type($this->name, $this->labels);
	}
}

## wp-new-rewrite.php
add_action('init', function(){
	add_rewrite_rule( 'doggy/([^/]+)/([^/]+)/([^/]+)', 'index.php?post_type=doggy&size=$matches[1]&color=$matches[2]&hair=$matches[3]', 'top' );  // first param in regular expresions, in the third param you define if this rule have priority over the wp default rules 'top' = is a priority

	// You can't use $_GET['size'],
	// you need $wp_query->query_vars['size'],
	// and you need:
	add_rewrite_tag('%size%','([^&]+)');
	add_rewrite_tag('%color%','([^&]+)');
	add_rewrite_tag('%hair%','([^&]+)');

	// redefine the regrite rules, only use in init hoock
	global $wp_rewrite;
	flush_rewrite_rules();
});

## wp-paginator.php
global $wp_query;
$total = $wp_query->max_num_pages;
// only bother with the rest if we have more than 1 page!
if ( $total > 1 )  {
     // get the current page
     if ( !$current_page = get_query_var('paged') )
          $current_page = 1;
     // structure of "format" depends on whether we're using pretty permalinks
     $format = empty( get_option('permalink_structure') ) ? '&page=%#%' : 'page/%#%/';
     echo paginate_links(array(
          'base' => get_pagenum_link(1) . '%_%',
          'format' => $format,
          'current' => $current_page,
          'total' => $total,
          'mid_size' => 4,
          'type' => 'list'
     ));
}

## wp_cookbook.md

      
    Raw
  

              wp_cookbook.md
            
          
    Pagination

ref: http://www.wprecipes.com/easy-wordpress-pagination-without-plugins
global $wp_query;
$total = $wp_query->max_num_pages;
// only bother with the rest if we have more than 1 page!
if ( $total > 1 )  {
     // get the current page
     if ( !$current_page = get_query_var('paged') )
          $current_page = 1;
     // structure of "format" depends on whether we're using pretty permalinks
     $format = empty( get_option('permalink_structure') ) ? '&page=%#%' : 'page/%#%/';
     echo paginate_links(array(
          'base' => get_pagenum_link(1) . '%_%',
          'format' => $format,
          'current' => $current_page,
          'total' => $total,
          'mid_size' => 4,
          'type' => 'list'
     ));
}

Use a page into another page

New WP_Query solution

ref: http://www.wprecipes.com/wordpress-hack-embed-a-page-into-another-page
<?php $recent = new WP_Query("page_id=**ID**"); while($recent->have_posts()) : $recent->the_post();?>
       <h3><?php the_title(); ?></h3>
       <?php the_content(); ?>
<?php endwhile; ?>

## Function solution using { get_page_by_path() }
function show_post($path) {
  $post = get_page_by_path($path);
  $content = apply_filters('the_content', $post->post_content);
  echo $content;
}
...
<?php show_post('about');  // Shows the content of the "About" page. ?>
<?php show_post('products/widget1');  // Shows content of the "Products > Widget" page. ?>

Generalice the previus solution 1:

function show_post($path, $activeFilter) {
  $post = get_page_by_path($path);
  $content = apply_filters($activeFilter, $post->post_content);
  echo $content;
}
...
<?php show_post('about', 'the_title');  // Shows the content of the "About" page. ?>
<?php show_post('products/widget1', 'the_content');  // Shows content of the "Products > Widget" page. ?>

The Rewrite API


ref: http://codex.wordpress.org/Rewrite_API

Create a new URI estructure

You can define a new rewrite rule using the add_rewrite_rule() function, sample:
//
add_acction('init', function(){
    add_rewrite_rule( 'doggy/([^/]+)/([^/]+)/([^/]+)', 'index.php?post_type=doggy&size=$matches[1]&color=$matches[2]&hair=$matches[3]', 'top' );  // first param in regular expresions, in the third param you define if this rule have priority over the wp default rules 'top' = is a priority

    // You can't use $_GET['size'], 
    // you need $wp_query->query_vars['size'],
    // and you need:
    add_rewrite_tag('%size%','([^&]+)');
    add_rewrite_tag('%color%','([^&]+)');
    add_rewrite_tag('%hair%','([^&]+)');
});
global $wp_rewrite;
flush_rewrite_rules(); // redefine the regrite rules, only use in init hoock

Ref:


http://theme.fm/2011/11/wordpress-internals-the-rewrite-api-2684/
http://wpengineer.com/2044/custom-post-type-and-permalink/
http://codex.wordpress.org/Function_Reference/flush_rewrite_rules
http://codex.wordpress.org/Rewrite_API/add_rewrite_rule
http://codex.wordpress.org/Rewrite_API/add_rewrite_tag

Páginas de Opciones

Ref:


http://www.presscoders.com/2010/05/wordpress-settings-api-explained/
	<?php
	/*
	Plugin Name: Settings API Options Example
	Plugin URI: http://www.presscoders.com/
	Description: Shows an example implementation of each input field type
	Author: David Gwyer
	Author URI: http://www.presscoders.com/
	*/

	// Specify Hooks/Filters
	register_activation_hook(__FILE__, 'add_defaults_fn');
	add_action('admin_init', 'sampleoptions_init_fn' );
	add_action('admin_menu', 'sampleoptions_add_page_fn');

	// Define default option settings
	function add_defaults_fn() {
	$tmp = get_option('plugin_options');
	if(($tmp['chkbox1']=='on')\|\|(!is_array($tmp))) {
	$arr = array("dropdown1"=>"Orange", "text_area" => "Space to put a lot of information here!", "text_string" => "Some sample text", "pass_string" => "123456", "chkbox1" => "", "chkbox2" => "on", "option_set1" => "Triangle");
	update_option('plugin_options', $arr);
	}
	}

	// Register our settings. Add the settings section, and settings fields
	function sampleoptions_init_fn(){
	register_setting('plugin_options', 'plugin_options', 'plugin_options_validate' );
	add_settings_section('main_section', 'Main Settings', 'section_text_fn', __FILE__);
	add_settings_field('plugin_text_string', 'Text Input', 'setting_string_fn', __FILE__, 'main_section');
	add_settings_field('plugin_text_pass', 'Password Text Input', 'setting_pass_fn', __FILE__, 'main_section');
	add_settings_field('plugin_textarea_string', 'Large Textbox!', 'setting_textarea_fn', __FILE__, 'main_section');
	add_settings_field('plugin_chk2', 'A Checkbox', 'setting_chk2_fn', __FILE__, 'main_section');
	add_settings_field('radio_buttons', 'Select Shape', 'setting_radio_fn', __FILE__, 'main_section');
	add_settings_field('drop_down1', 'Select Color', 'setting_dropdown_fn', __FILE__, 'main_section');
	add_settings_field('plugin_chk1', 'Restore Defaults Upon Reactivation?', 'setting_chk1_fn', __FILE__, 'main_section');
	}

	// Add sub page to the Settings Menu
	function sampleoptions_add_page_fn() {
	add_options_page('Options Example Page', 'Options Example', 'administrator', __FILE__, 'options_page_fn');
	}

	// ************************************************************************************************************

	// Callback functions

	// Section HTML, displayed before the first option
	function section_text_fn() {
	echo '<p>Below are some examples of different option controls.</p>';
	}

	// DROP-DOWN-BOX - Name: plugin_options[dropdown1]
	function setting_dropdown_fn() {
	$options = get_option('plugin_options');
	$items = array("Red", "Green", "Blue", "Orange", "White", "Violet", "Yellow");
	echo "<select id='drop_down1' name='plugin_options[dropdown1]'>";
	foreach($items as $item) {
	$selected = ($options['dropdown1']==$item) ? 'selected="selected"' : '';
	echo "<option value='$item' $selected>$item</option>";
	}
	echo "</select>";
	}

	// TEXTAREA - Name: plugin_options[text_area]
	function setting_textarea_fn() {
	$options = get_option('plugin_options');
	echo "<textarea id='plugin_textarea_string' name='plugin_options[text_area]' rows='7' cols='50' type='textarea'>{$options['text_area']}</textarea>";
	}

	// TEXTBOX - Name: plugin_options[text_string]
	function setting_string_fn() {
	$options = get_option('plugin_options');
	echo "<input id='plugin_text_string' name='plugin_options[text_string]' size='40' type='text' value='{$options['text_string']}' />";
	}

	// PASSWORD-TEXTBOX - Name: plugin_options[pass_string]
	function setting_pass_fn() {
	$options = get_option('plugin_options');
	echo "<input id='plugin_text_pass' name='plugin_options[pass_string]' size='40' type='password' value='{$options['pass_string']}' />";
	}

	// CHECKBOX - Name: plugin_options[chkbox1]
	function setting_chk1_fn() {
	$options = get_option('plugin_options');
	if($options['chkbox1']) { $checked = ' checked="checked" '; }
	echo "<input ".$checked." id='plugin_chk1' name='plugin_options[chkbox1]' type='checkbox' />";
	}

	// CHECKBOX - Name: plugin_options[chkbox2]
	function setting_chk2_fn() {
	$options = get_option('plugin_options');
	if($options['chkbox2']) { $checked = ' checked="checked" '; }
	echo "<input ".$checked." id='plugin_chk2' name='plugin_options[chkbox2]' type='checkbox' />";
	}

	// RADIO-BUTTON - Name: plugin_options[option_set1]
	function setting_radio_fn() {
	$options = get_option('plugin_options');
	$items = array("Square", "Triangle", "Circle");
	foreach($items as $item) {
	$checked = ($options['option_set1']==$item) ? ' checked="checked" ' : '';
	echo "<label><input ".$checked." value='$item' name='plugin_options[option_set1]' type='radio' /> $item</label><br />";
	}
	}

	// Display the admin options page
	function options_page_fn() {
	?>
	<div class="wrap">
	<div class="icon32" id="icon-options-general"><br></div>
	<h2>My Example Options Page</h2>
	Some optional text here explaining the overall purpose of the options and what they relate to etc.
	<form action="options.php" method="post">
	<?php settings_fields('plugin_options'); ?>
	<?php do_settings_sections(__FILE__); ?>
	<p class="submit">
	<input name="Submit" type="submit" class="button-primary" value="<?php esc_attr_e('Save Changes'); ?>" />
	</p>
	</form>
	</div>
	<?php
	}

	// Validate user data for some/all of your input fields
	function plugin_options_validate($input) {
	// Check our textbox option field contains no HTML tags - if so strip them out
	$input['text_string'] = wp_filter_nohtml_kses($input['text_string']);
	return $input; // return validated input
	}
	class model {

	var $name = 'events';
	var $labels = array(
	'labels' => array(
	'name' => 'Eventos',
	'singular_name' => 'Evento',
	'add_new' => 'Nuevo',
	'menu_name' => 'Eventos'
	),
	//'description' => '...',
	'public' => true,
	'has_archive' => true,
	'menu_position' => 9,
	//'menu_icon' => 'http://...',
	'capability_type' => 'post'

	);

	function create_post_type(){
	register_post_type($this->name, $this->labels);
	}
	}
	add_action('init', function(){
	add_rewrite_rule( 'doggy/([^/]+)/([^/]+)/([^/]+)', 'index.php?post_type=doggy&size=$matches[1]&color=$matches[2]&hair=$matches[3]', 'top' ); // first param in regular expresions, in the third param you define if this rule have priority over the wp default rules 'top' = is a priority

	// You can't use $_GET['size'],
	// you need $wp_query->query_vars['size'],
	// and you need:
	add_rewrite_tag('%size%','([^&]+)');
	add_rewrite_tag('%color%','([^&]+)');
	add_rewrite_tag('%hair%','([^&]+)');

	// redefine the regrite rules, only use in init hoock
	global $wp_rewrite;
	flush_rewrite_rules();
	});
	global $wp_query;
	$total = $wp_query->max_num_pages;
	// only bother with the rest if we have more than 1 page!
	if ( $total > 1 ) {
	// get the current page
	if ( !$current_page = get_query_var('paged') )
	$current_page = 1;
	// structure of "format" depends on whether we're using pretty permalinks
	$format = empty( get_option('permalink_structure') ) ? '&page=%#%' : 'page/%#%/';
	echo paginate_links(array(
	'base' => get_pagenum_link(1) . '%_%',
	'format' => $format,
	'current' => $current_page,
	'total' => $total,
	'mid_size' => 4,
	'type' => 'list'
	));
	}