index.php

<?php
/*
Plugin Name: WP Awesome FAQ
Plugin URI: http://jeweltheme.com/product/wp-awesome-faq-pro/
Description: Accordion based Awesome WordPress FAQ Plugin
Version: 1.9.0
Author: Liton Arefin
Author URI: http://www.jeweltheme.com
License: GPL2
http://www.gnu.org/licenses/gpl-2.0.html
*/

//Custom FAQ Post Type 
function jeweltheme_wp_awesome_faq_post_type() {
    $labels = array(
        'name'               => _x( 'FAQ', 'post type general name' ),
        'singular_name'      => _x( 'FAQ', 'post type singular name' ),
        'add_new'            => _x( 'Add New', 'book' ),
        'add_new_item'       => __( 'Add New FAQ' ),
        'edit_item'          => __( 'Edit FAQ' ),
        'new_item'           => __( 'New FAQ Items' ),
        'all_items'          => __( 'All FAQ\'s' ),
        'view_item'          => __( 'View FAQ' ),
        'search_items'       => __( 'Search FAQ' ),
        'not_found'          => __( 'No FAQ Items found' ),
        'not_found_in_trash' => __( 'No FAQ Items found in the Trash' ), 
        'parent_item_colon'  => '',
        'menu_name'          => 'FAQ'
    );
    $args = array(
        'labels'        => $labels,
        'description'   => 'Holds FAQ specific data',
        'public'        => true,
        'show_ui'       => true,
        'show_in_menu'  => true,
        'query_var'     => true,
        'rewrite'       => array('slug' => 'faq'),
        'capability_type'=> 'post',
        'has_archive'   => true,
        'hierarchical'  => false,
        'menu_position' => 5,
        'supports'      => array( 'title', 'editor'),
        'menu_icon' => 'dashicons-welcome-write-blog'
    );

    register_post_type( 'faq', $args ); 

        // Add new taxonomy, make it hierarchical (like categories)
        $labels = array(
            'name'              => _x( 'FAQ Categories', 'taxonomy general name' ),
            'singular_name'     => _x( 'FAQ Category', 'taxonomy singular name' ),
            'search_items'      =>  __( 'Search FAQ Categories' ),
            'all_items'         => __( 'All FAQ Category' ),
            'parent_item'       => __( 'Parent FAQ Category' ),
            'parent_item_colon' => __( 'Parent FAQ Category:' ),
            'edit_item'         => __( 'Edit FAQ Category' ),
            'update_item'       => __( 'Update FAQ Category' ),
            'add_new_item'      => __( 'Add New FAQ Category' ),
            'new_item_name'     => __( 'New FAQ Category Name' ),
            'menu_name'         => __( 'FAQ Category' ),
        );
    
        register_taxonomy('faq_cat',array('faq'), array(
            'hierarchical' => true,
            'labels'       => $labels,
            'show_ui'      => true,
            'query_var'    => true,
            'rewrite'      => array( 'slug' => 'faq_cat' ),
        ));
}

add_action( 'init', 'jeweltheme_wp_awesome_faq_post_type' );

function jeweltheme_wp_awesome_faq_enqueue_scripts(){
     if(!is_admin()){
        wp_register_style('jeweltheme-jquery-ui-style',plugins_url('/jquery-ui.css', __FILE__ ));
        wp_enqueue_style('jeweltheme-jquery-ui-style');
        wp_enqueue_script('jquery');
        wp_enqueue_script('jquery-ui-core');
        wp_register_script('jeweltheme-custom-js', plugins_url('/accordion.js', __FILE__ ), array('jquery-ui-accordion'),true);
        wp_enqueue_script('jeweltheme-custom-js');
    }   
}
add_action( 'init', 'jeweltheme_wp_awesome_faq_enqueue_scripts' );


function jeweltheme_wp_awesome_faq_shortcode($atts, $content= null) { 
    
    extract( shortcode_atts(
        array(
           'id' => '',
            'content'  => '',
            "cat_id" => '',
            "image" => '',
            ), $atts )
    );


    // WP_Query arguments
    if( $cat_id == '' ) :
        $args = array (
            'posts_per_page'        => -1,
            'post_type'             => 'faq',
            'p'                     => $id,
            'order' =>"DESC"
            );
    else:
        $args = array (
            'posts_per_page'        => -1,
            'post_type'             => 'faq',
            'p'                     => $id,
            'tax_query' => array(
                array(
                    'taxonomy' => 'faq_cat',
                    'field'    => 'id',
                    'terms'    => array( $cat_id ),
                    ),
                ),

            'order' =>"DESC"
            );
    endif;

    $query = new WP_Query( $args );

    ob_start();

    global $faq;

    $count = 0; 
    $accordion = 'accordion-' . time() . rand();

    ?>
        <div class="accordion" id="<?php echo $accordion .  $count;?>">
            <?php if( $query->have_posts() ) { while ( $query->have_posts() ) { $query->the_post(); ?>

                <h3><a href=""><?php the_title();?></a></h3><div>
                <?php if($image){ ?>
                    <img src="<?php echo $image;?>">
                <?php } ?>

                    <?php the_content();?></div>    

                <?php } //end while
            } else{
                echo "<p>No FAQ Items. Please add some Items</p>";
                } ?>
        </div>
    <?php
        //Reset the query
    wp_reset_query();
    wp_reset_postdata();
        $output = ob_get_contents(); // end output buffering
        ob_end_clean(); // grab the buffer contents and empty the buffer
        return $output;
}
add_shortcode('faq', 'jeweltheme_wp_awesome_faq_shortcode');




/* Display a notice that can be dismissed */

add_action('admin_notices', 'jeweltheme_wp_awesome_faq_admin_notice');

function jeweltheme_wp_awesome_faq_admin_notice() {
    global $current_user ;
        $user_id = $current_user->ID;
    if ( ! get_user_meta($user_id, 'jeweltheme_ignore_notice') ) {
        echo '<div class="updated"><p>'; 
        printf(__('Check out Premium Features of <a href="http://jeweltheme.com/product/wp-awesome-faq-pro/" target="_blank">WP Awesome FAQ</a> Plugin.  Why this Plugin is really awesome !!! | Check out other Awesome stuffs <a href="http://jeweltheme.com" target="_blank">here</a> <a style="float: right;" href="%1$s">X</a>'), '?jeweltheme_ignore=0');
        echo "</p></div>";
    }
}
add_action('admin_init', 'jeweltheme_wp_awesome_faq_ignore');


function jeweltheme_wp_awesome_faq_ignore() {
    global $current_user;
        $user_id = $current_user->ID;
        if ( isset($_GET['jeweltheme_ignore']) && '0' == $_GET['jeweltheme_ignore'] ) {
             add_user_meta($user_id, 'jeweltheme_ignore_notice', 'true', true);
    }
}





// Manage Category Shortcode Columns
add_filter("manage_faq_cat_custom_column", 'jeweltheme_wp_awesome_faq_cat_columns', 10, 3);
add_filter("manage_edit-faq_cat_columns", 'jeweltheme_wp_awesome_faq_cat_manage_columns'); 
 
function jeweltheme_wp_awesome_faq_cat_manage_columns($theme_columns) {
    $new_columns = array(
            'cb' => '<input type="checkbox" />',
            'name' => __('Name'),
            'faq_category_shortcode' => __( 'Category Shortcode', 'jeweltheme' ),
            'slug' => __('Slug'),
            'posts' => __('Posts')
        );
    return $new_columns;

}


function jeweltheme_wp_awesome_faq_cat_columns($out, $column_name, $theme_id) {
    $theme = get_term($theme_id, 'faq_cat');
    switch ($column_name) {
        
        case 'title':
            echo get_the_title();
        break;

        case 'faq_category_shortcode':             
             echo '[faq cat_id="' . $theme_id. '"]';
        break;
 
        default:
            break;
    }
    return $out;    
}