Simple WordPress Advertising Plugin: Tracking Ads | http://www.ibenic.com/simple-wordpress-advertising-plugin-tracking-ads

ad_click.php

<?php

//swa-functions.php

/**
 * Click Ad registration
 * @return void 
 */
function swa_ad_click() {
  $id = 0;

  if( isset( $_POST['id'] ) ) {
      $id = (int) $_POST['id'];
  }

  $clicks = (int) get_post_meta( $id, '_clicks', true );

  if( ! $clicks ) {
      $clicks = 0;
  }

  $clicks++;
  update_post_meta( $id, '_clicks', $clicks );

  wp_die();
}

ctr.php

<?php

//swa-functions.php

/**
 * Display the impressions in the column
 * @param  number $post_id    
 * @param  string $column_key Column key
 * @return number             
 */
function swa_ctr( $post_id, $column_key ) {
    $impressions = get_post_meta( $post_id, '_impressions', true );
    $clicks = get_post_meta( $post_id, '_clicks', true );
    
    if( ! $impressions ) {
        $impressions = 0;
    }

    if( ! $clicks ) {
        $clicks = 0;
    }

    $ctr = 0;

    if( $clicks > 0 && $impressions > 0 ) {
        $ctr = (float)( $clicks / $impressions );
    }

    echo number_format($ctr, 2, '.', '') . '%';
}

enqueue_script.php

<?php

//swa-front.php

/**
 * Enqueueing scripts on the front
 * @return void 
 */
function swa_enqueue_scripts(){

	$swa = swa();
	if( ! $swa->has_ad_position('top') && ! $swa->has_ad_position('bottom') ) {
		return;
	}

	wp_register_script( 'swa-front-js', SWA_URI . 'assets/js/swa.js', array('jquery'), '', true );
	
	$script_array = array(
		'ajax_url' => admin_url( 'admin-ajax.php' )
	);

	wp_localize_script( 'swa-front-js', 'swa', $script_array );

	wp_enqueue_script( 'swa-front-js' );

}

impressions_clicks.php

<?php

//swa-functions.php

/**
 * Display the impressions in the column
 * @param  number $post_id    
 * @param  string $column_key Column key
 * @return number             
 */
function swa_impressions( $post_id, $column_key ) {
    $impressions = get_post_meta( $post_id, $column_key, true );
    if( ! $impressions ) {
        $impressions = 0;
    }
    echo $impressions;
}

/**
 * Display the impressions in the column
 * @param  number $post_id    
 * @param  string $column_key Column key
 * @return number             
 */
function swa_clicks( $post_id, $column_key ) {
    $clicks = get_post_meta( $post_id, $column_key, true );
    if( ! $clicks ) {
        $clicks = 0;
    }
    echo $clicks;
}

load_dependencies.php

<?php
//simple-wp-ads.php

// ...

public function load_dependencies() {
  
  //...
  
	/**
	 * Load only on admin side
	 */
	if( is_admin() ) {
		require_once SWA_ROOT .'inc/class-swa-metabox.php';
		require_once SWA_ROOT .'inc/class-swa-column.php';
		require_once SWA_ROOT .'inc/class-swa-columns.php';
	}
  
  // ...
}

// ...

make_columns.php

<?php

//simple-wp-ads.php

// ...

	public function make_columns() {
		$columns = new SWA_Columns( array(

			array(
				'post_type' => 'swa',
				'column_key' => '_impressions',
				'column_title' => __( 'Impressions', 'swa' ),
				'column_display' => 'swa_impressions'
				),
			array(
				'post_type' => 'swa',
				'column_key' => '_clicks',
				'column_title' => __( 'Clicks', 'swa' ),
				'column_display' => 'swa_clicks'
				),
			array(
				'post_type' => 'swa',
				'column_key' => '_ctr',
				'column_title' => __( 'CTR', 'swa' ),
				'column_display' => 'swa_ctr'
				),

		));

		$columns->add_columns();
	}
// ...

run.php

<?php
//simple-wp-ads.php

// ...

	/**
	 * Run the plugin
	 * @return void
	 */
	public function run(){
		// Hook into the 'init' action
		add_action( 'init', 'swa_cpt', 0 );

		// Hook when swa has ended
		add_action( 'swa_ad_ended', 'swa_ad_ended' );

		// Ad click registration
		add_action( 'wp_ajax_swa_ad_click', 'swa_ad_click' );
		add_action( 'wp_ajax_nopriv_swa_ad_click', 'swa_ad_click' );

		if( is_admin() ) {
			add_action( 'load-post.php',     array( $this, 'construct_metabox_on_ad' ) );
      		add_action( 'load-post-new.php', array( $this, 'construct_metabox_on_ad' ) );
      		add_action( 'save_post', 'swa_save_ad', 99, 2 );

      		$this->make_columns();
		} 

		if( ! is_admin() ) {
			// Add Style on front end
			add_action( 'wp_head', 'swa_inline_style' );

			// Get banners
			add_action( 'init', 'swa_get_ads', 20 );

			// Add body clases used in inline styles
			add_action( 'init', 'swa_add_body_classes', 30 );

			// Display the ads
			add_action( 'wp_footer', 'swa_display_ads', 30 );

			// Add body clases used in inline styles
			add_action( 'wp_enqueue_scripts', 'swa_enqueue_scripts', 20 );
		}

	}

set_impressions.php

<?php

//swa-front.php

/**
 * Set impressions for Ad
 * @param  array $ad_array 
 * @return void           
 */
function swa_set_impressions( $ad_array ) {
	$ad_id = $ad_array['id'];
	$impressions =  (int) get_post_meta( $ad_id, '_impressions', true );
	if( ! $impressions ) {
		$impressions = 0;
	}
	$impressions++;
	update_post_meta( $ad_id, '_impressions', $impressions );
}

swa-column.php

<?php

/**
 * Creating Column
 */
class SWA_Column {

	/**
	 * Default definitions
	 * @var array
	 */
	public $defaults = array(
		'post_type' => 'post',
		'column_key' => '',
		'column_title' => '',
		'column_display' => 'column_key'
		);

	/**
	 * Container of our options for the column
	 * @var array
	 */
	public $options = array();

	/**
	 * Merge added options with the defaults. If the column key is not defined throw and exception.
	 * If we do not have a title for the column, create one from the column key
	 * @param array $options 
	 */
	public function __construct( $options ){

		$this->options = array_merge( $this->defaults, $options );

		if( $this->options['column_key'] == '' ){
			$message = __( 'Column key is not defined', 'yourtextdomain' );
			throw new Exception( $message );
		}

		if( $this->options['column_title'] == '' ) {
			$this->options['column_title'] = ucfirst( $this->options['column_key'] );
		}
	}

	/**
	 * Attach this column by using WordPress filters and actions
	 * If the post type is different from 'post' and 'page' then add a new word to filters and actions to dynamically target our columns
	 * If the post type is a page, then change the for_type variable so that the column is added to the pages section
	 * @return void 
	 */
	public function attach() {
		$post_type = '';
		if( $this->options['post_type'] != 'post' && $this->options['post_type'] != 'page'   ){
			$post_type = '_' . $this->options['post_type'];
		}

		$for_type = 'posts';
		if( $this->options['post_type'] == 'page' ) {
			$for_type = 'pages';
		}
		add_filter('manage' . $post_type . '_' . $for_type . '_columns' , array( $this, 'add_column' ) );

		add_action( 'manage' . $post_type . '_' . $for_type . '_custom_column', array( $this, 'column_data' ), 10, 2);

	}

	/**
	 * Add the column to the columns array
	 * @param array $columns
	 */
	public function add_column( $columns ) {
		$columns[ $this->options['column_key'] ] = $this->options['column_title'];
		return $columns;
	}

	/**
	 * Render a column
	 * @param  string $column  Column slug/key
	 * @param  string $post_id 
	 * @return void      
	 */
	public function column_data( $column, $post_id ){

		if( $column == $this->options['column_key'] ){
			if( $this->options['column_display'] == 'column_key' ){
				echo get_post_meta( $post_id, $this->options['column_key'], true );
			} else {
				$function_name = $this->options['column_display'];
				call_user_func_array($function_name, array( $post_id, $this->options['column_key'] ) );
			}
		}
	}

}

swa-columns.php

<?php

/**
 * Factory for columns
 */
class SWA_Columns {

	public $columns = array();

	public function __construct( $columns ) {
		$this->columns = $columns;
	}

	public function add_columns() {
		foreach ( $this->columns as $column ) {

			$the_column = new SWA_Column( $column );
			$the_column->attach();
		}
	}


}

swa.js

(function($){
	$(document).ready(function(){
		$(".swa_ad a").on( 'click', function(e){
			$ad_id = $(this).attr("data-id");
			$.ajax({
				method: "POST",
				url: swa.ajax_url,
				data: { action: 'swa_ad_click', id: $ad_id }
			});
		});
	});
})(jQuery);

swa_display_ads.php

<?php

//swa-front.php

/**
 * Display the ads, one random ad per position
 * @return void 
 */
function swa_display_ads() {
  
  // ...

		if( count( $top_ads ) > 0 ) {
			$random_top_ad = array_rand( $top_ads );
			$the_top_ad = $top_ads[ $random_top_ad ];
			swa_set_impressions( $the_top_ad );
			swa_render_ad( $the_top_ad, 'top' );
		}

		if( count( $bottom_ads ) > 0 ) {
			$random_bottom_ad = array_rand( $bottom_ads );
			$the_bottom_ad = $bottom_ads[ $random_bottom_ad ];
			swa_set_impressions( $the_bottom_ad );
			swa_render_ad( $the_bottom_ad, 'bottom' );
		}
	
  // ...


}

swa_render_ad.php

<?php

/**
 * Rendering function for the Ad
 * @param  array 	$ad_array Definition array of Ad
 * @param  string 	$position 
 * @return void           
 */
function swa_render_ad( $ad_array, $position ) {
	// ...
	
	echo '<div class="swa_ad ' . $swa_ad_class . '">';
		echo '<a data-id="' . $ad_array['id'] . '" target="_blank" href="' . $link . '">';
			echo $ad_array['image'];
		// ...
}