Query for custom post type?

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I have installed the Custom Post Type UI plugin. After activation of this plugin I have created a custom post type called portfolio. Now I want to use this on the portfolio page in the front-end. How do I fetch all post that are of custom post type portfolio?

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3 comments 

  1. query_posts( array( 'post_type' => array('post', 'portfolio') ) );

    which shows both normal posts and posts inside portfolio type

    or

    query_posts('post_type=portfolio');

    for only portfolio.

    Use as normal WP Query – read the Codex: http://codex.wordpress.org/Function_Reference/query_posts#Usage and http://codex.wordpress.org/Function_Reference/query_posts#Post_.26_Page_Parameters

    <?php 
    query_posts(array( 
        'post_type' => 'portfolio',
        'showposts' => 10 
    ) );  
?>
<?php while (have_posts()) : the_post(); ?>
        <h2><a href="<?php the_permalink() ?>"><?php the_title(); ?></a></h2>
        <p><?php echo get_the_excerpt(); ?></p>
<?php endwhile;?>

  2. Late answer as the main answer uses query_posts(), which should never be done.

    Use a filter

    Use the pre_get_posts filter and just set the portfolio post type for the main query. Use Conditional Tags to determine where you want to have this filter.

    Quick Example

    <?php
defined( 'ABSPATH' ) OR exit;
/* Plugin Name: (#6417) "Portfolio" post type in query */

add_filter( 'pre_get_posts', 'wpse_6417_portfolio_posts' );
function wpse_6417_portfolio_posts( $query )
{
    if (
        ! $query->is_main_query()
        // Here we can check for all Conditional Tags
        OR ! $query->is_archive() // For e.g.: Every archive will feature both post types
    )
        return $query;

    $query->set( 'post_type', array( 'post', 'portfolio' ) );

    return $query;
}

    Disclaimer

    The above code is a plugin, but can simply get stuffed in the functions.php file of your theme (which is not recommended).

  3. Add this code to your child themes functions file (recommended) to add your single CPT pages to your main loop

    add_action( 'pre_get_posts', 'add_custom_post_types_to_loop' );

function add_custom_post_types_to_loop( $query ) {

if ( is_home() && $query->is_main_query() )

$query->set( 'post_type', array( 'post', 'portfolio' ) );

return $query;

}

    Source http://codex.wordpress.org/Post_Types

    Or create a custom archive-portfolio.php page template which will only display your CPT pages. This only needs to be done if you haven’t added a archive page using the plugin settings.

    Example: ‘has_archive’ => true,

    You can also control how many pages are displayed and the order in which they’re displayed on the archive page using this code:

    add_action( 'pre_get_posts', 'cpt_items' );

function cpt_items( $query ) {

if( $query->is_main_query() && !is_admin() && is_post_type_archive( 'portfolio' ) ) {

$query->set( 'posts_per_page', '8' );

$query->set( 'order', 'ASC' );

    }

}