itemprop_review.php

<?php

/*
 * Simple check for WordPress. Make sure we don't expose any info if called directly
 * @since 3.4.6
 * @version 1.0.0
 */
if (!function_exists('add_action')) {
    header('Status: 403 Forbidden');
    header('HTTP/1.1 403 Forbidden');
    exit();
}
/*
  itempropwp itemprom review
  <div itemprop="review" itemscope itemtype="http://schema.org/Review">
  <meta itemprop="name" content="Item Title is greate!" />
  <meta itemprop="author" content="Rolands Umbrovskis" />
  <meta itemprop="datePublished" content="2011-03-25" />
  <span itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating">
  <meta itemprop="worstRating" content = "1"/>
  <meta itemprop="ratingValue" content="4.5" />
  <meta itemprop="bestRating" content="5" />
  </span>
  <span itemprop="itemReviewed" itemscope itemtype="http://schema.org/Thing">
  <meta itemprop="name" content="Item Title" />
  </span>

  <div itemscope itemtype="http://schema.org/Product">
  <meta itemprop="name" content="Item Title" />
  <span itemprop="offers" itemscope itemtype="http://schema.org/Offer">
  <meta itemprop="price" content="55.36" />
  <meta itemprop="priceCurrency" content="USD" />
  <link itemprop="availability" href="http://schema.org/InStock" />
  </span>
  </div>
  <meta itemprop="description" content="Great Item Title for the price." />
  </div>

 */

new itempropwp_review();

class itempropwp_review
{

    public function __construct()
    {
        //parent::__construct();
        add_action('init', array($this, 'reviewinit'), 10);
    }

    private function reviewvers()
    {
        return '1.2.3';
    }

    public function reviewinit()
    {

        add_filter('itempropwp_article_content_before', array($this, 'review'), 11); // Adding context @since 3.0
        add_filter('add_meta_boxes', array($this, 'review_metabox'), 11); // Adding context @since 3.3.0
        add_filter('save_post', array($this, 'itempropwp_review_save'), 11); // Adding context @since 3.3.0
    }

    public function review($content)
    {


        if (is_singular() && !is_feed()) {
            global $post;

            $reviewinit = new itempropwp_review();
            $reviewv = $this->reviewvers();

            $ipwprprefix = 'ipwp_';
            $reviewid = $post->ID;
            $reviewpost = get_post($post->ID);
            $reviewname = get_post_meta($reviewid, $ipwprprefix . 'product_name', true);
            $reviewprice = get_post_meta($reviewid, $ipwprprefix . 'product_price', true);
            $reviewcurrency = get_post_meta($reviewid, $ipwprprefix . 'currency', true);
            $reviewrating = get_post_meta($reviewid, $ipwprprefix . 'rating', true);
            $reviewonoff = get_post_meta($reviewid, $ipwprprefix . 'reviewonoff', true);
            $newcontent = '';
            $pricerows = '';
            $reviewratingrow = '';

            if (isset($reviewrating['rate'])) {
                $itemrating = $reviewrating['rate'];
            } else {
                $itemrating = 0;
            }
            if (isset($reviewonoff['onoff'])) {
                if ($reviewonoff['onoff'] == "on") {
                    if (!$reviewname) {
                        $reviewname = $reviewpost->post_title;
                    }
                    if ($reviewprice || $reviewcurrency) { // @since 1.2.0 with || not &&
                        $pricerows = '<span itemprop="offers" itemscope itemtype="http://schema.org/Offer"><meta itemprop="price" content="' . $reviewprice . '"><meta itemprop="priceCurrency" content="' . $reviewcurrency . '"><link itemprop="availability" href="http://schema.org/InStock"></span>';
                    }

                    if ($reviewrating) {
                        $reviewratingrow = '<span itemprop="reviewRating" itemscope itemtype="http://schema.org/Rating"><meta itemprop="worstRating" content = "1"><meta itemprop="ratingValue" content="' . $itemrating . '"><meta itemprop="bestRating" content="5"></span>';
                    }


                    $review_descr = apply_filters('ipwp_reviewpost_dsc', $reviewpost->post_excerpt ? $reviewpost->post_excerpt : ''); // Extending @since 3.3.1

                    if (!empty($review_descr)) {
                        $ipwrp_n = new itempropwp;
                        $review_descr = apply_filters(
                                'ipwp_reviewpost_dsc', $ipwrp_n->ipwp_excerpt_maxchr(
                                        get_option('smcipwp_maxlenght'), strip_tags(strip_shortcodes($reviewpost->post_content))
                                )
                        ); // Extending @since 3.3.1
                    }
                    $newcontent .= '<span itemprop="review" itemscope itemtype="http://schema.org/Review"><meta itemprop="name" content="' . esc_html($reviewpost->post_title) . '"><meta itemprop="author" content="' . esc_html(get_the_author_meta('display_name', $reviewpost->post_author)) . '"><meta itemprop="datePublished" content="' . esc_html($reviewpost->post_date) . '">'
                            . $reviewratingrow . '<span itemprop="itemReviewed" itemscope itemtype="http://schema.org/Product"><meta itemprop="name" content="' . esc_html($reviewname) . '">'
                            . $pricerows . '</span><meta itemprop="description" content="' . esc_html(str_replace(array("\r\n", "\n", "\r", "\t"), "", $review_descr)) . '"></span>';

                    $content = "\n" . '<!-- ' . IPWPTSN . ' ' . SMCIPWPV . '/ Review ' . $reviewv . ' by Rolands Umbrovskis ' . IPWPT_HOMEPAGEC . ' -->' . $newcontent . '<!-- ' . IPWPTSN . ' ' . SMCIPWPV . '/ Review ' . $reviewv . ' end -->' . "\n";
                }
            }// isset($reviewonoff['onoff'])

            return $content;
        }
        return $content;
    }

    public function review_metabox()
    {
        $ipwprprefix = 'ipwp_';

        add_meta_box($ipwprprefix . 'postbox_review', sprintf(__("%s Review", "itempropwp"), IPWPTSN), array($this, 'ipwp_cpbox'), 'post', 'normal', 'high');
        add_meta_box($ipwprprefix . 'pagebox_review', sprintf(__("%s Review", "itempropwp"), IPWPTSN), array($this, 'ipwp_cpbox'), 'page', 'normal', 'high');
    }

    function ipwp_cpbox($post)
    {
        $ipwprprefix = 'ipwp_';
        wp_nonce_field(plugin_basename(__FILE__), $ipwprprefix . 'pt_post_nonce');
        echo '<table class="form-table"><tbody>';
        $reviewonoff = get_post_meta($post->ID, $ipwprprefix . 'reviewonoff', true);
        if (!isset($reviewonoff['onoff'])) {
            $reviewonoff['onoff'] = 'off';
        }
        $rating = get_post_meta($post->ID, $ipwprprefix . 'rating', true);

        echo '<tr>';
        echo '<th scope="row"><div class="' . $ipwprprefix . 'postcbox-label">';
        echo '<label for="' . $ipwprprefix . 'reviewonoff">' . __("Turn On/Off review mode", "itempropwp") . '</label> ';
        echo '</div></th>';
        echo '<td>';
        echo '<div class="' . $ipwprprefix . 'postcbox-input">';
        echo '<select name="' . $ipwprprefix . 'reviewonoff[onoff]" id="' . $ipwprprefix . 'reviewonoff">';
        echo '<option value="off" ' . selected($reviewonoff['onoff'], "off", false) . '>Off</option>';
        echo '<option value="on" ' . selected($reviewonoff['onoff'], "on", false) . '>On</option>';
        echo '</select>';
        echo '</div>';
        echo '</td>';
        echo '</tr>';

        echo '<tr>';
        echo '<th scope="row">';
        echo '<div class="' . $ipwprprefix . 'postcbox-label">';
        echo '<label for="' . $ipwprprefix . 'product_name">' . __("Name of item", "itempropwp") . '</label>';
        echo '</div>';
        echo '</th>';
        echo '<td>';
        echo '<div class="' . $ipwprprefix . 'postcbox-input">';
        echo '<input type="text" id="' . $ipwprprefix . 'product_name" name="' . $ipwprprefix . 'product_name" value="' . esc_html(get_post_meta($post->ID, $ipwprprefix . 'product_name', true)) . '" size="25" class="large-text" />';
        echo '</div>';
        echo '</td>';
        echo '</tr>';

        echo '<tr>';
        echo '<th scope="row">';
        echo '<div class="' . $ipwprprefix . 'postcbox-label">';
        echo '<label for="' . $ipwprprefix . 'product_price">' . __("Price of item", "itempropwp") . '</label> ';
        echo '</div>';
        echo '</th>';
        echo '<td><div class="' . $ipwprprefix . 'postcbox-input"><input type="text" id="' . $ipwprprefix . 'product_price" name="' . $ipwprprefix . 'product_price" value="' . esc_html(get_post_meta($post->ID, $ipwprprefix . 'product_price', true)) . '" size="25" /></div></td>';
        echo '</tr>';

        echo '<tr><th scope="row"><div class="' . $ipwprprefix . 'postcbox-label">';
        echo '<label for="' . $ipwprprefix . 'currency">' . __("Currency of item", "itempropwp") . '</label> ';
        echo '</div></th>';
        echo '<td><div class="' . $ipwprprefix . 'postcbox-input"><input type="text" id="' . $ipwprprefix . 'currency" name="' . $ipwprprefix . 'currency" value="' . esc_html(get_post_meta($post->ID, $ipwprprefix . 'currency', true)) . '" size="25" /></div></td></tr>';

        echo '<tr><th scope="row"><div class="' . $ipwprprefix . 'postcbox-label">';
        echo '<label for="' . $ipwprprefix . 'rating">' . __("Rating of item", "itempropwp") . '</label> ';
        echo '</div></th>';
        if (!isset($rating['rate'])) {
            $rating['rate'] = 0;
        }
        echo '<td><div class="' . $ipwprprefix . 'postcbox-input">
		<select name="' . $ipwprprefix . 'rating[rate]" id="' . $ipwprprefix . 'reviewonoff">
			<option value="0"	' . selected($rating['rate'], "0", false) . '>0.0</option>
			<option value="0.5" ' . selected($rating['rate'], "0.5", false) . '>0.5</option>
			<option value="1.0" ' . selected($rating['rate'], "1.0", false) . '>1.0</option>
			<option value="1.5" ' . selected($rating['rate'], "1.5", false) . '>1.5</option>
			<option value="2.0" ' . selected($rating['rate'], "2.0", false) . '>2.0</option>
			<option value="2.5" ' . selected($rating['rate'], "2.5", false) . '>2.5</option>
			<option value="3.0" ' . selected($rating['rate'], "3.0", false) . '>3.0</option>
			<option value="3.5" ' . selected($rating['rate'], "3.5", false) . '>3.5</option>
			<option value="4.0" ' . selected($rating['rate'], "4.0", false) . '>4.0</option>
			<option value="4.5" ' . selected($rating['rate'], "4.5", false) . '>4.5</option>
			<option value="5"	' . selected($rating['rate'], "5", false) . '>5.0</option>
		</select>';
        echo '</div></td></tr>';
        echo '</tbody></table>';
    }

    function itempropwp_review_save($post_id)
    {
        $ipwprprefix = 'ipwp_';
        if (defined('DOING_AUTOSAVE') && DOING_AUTOSAVE)
            return;

        if (!wp_verify_nonce($_POST[$ipwprprefix . 'pt_post_nonce'], plugin_basename(__FILE__)))
            return;
        if ('page' == $_POST['post_type']) {
            if (!current_user_can('edit_page', $post_id))
                return;
        }
        else {
            if (!current_user_can('edit_post', $post_id))
                return;
        }

        $product_name = $_POST[$ipwprprefix . 'product_name'];
        $product_price = $_POST[$ipwprprefix . 'product_price'];
        $currency = $_POST[$ipwprprefix . 'currency'];
        $rating = $_POST[$ipwprprefix . 'rating'];
        $reviewonoff = $_POST[$ipwprprefix . 'reviewonoff'];
        // Default price
        if (!$product_price || $product_price == '') {
            $product_price = apply_filters('ipwp_reviewpost_noprice', '0.00'); // @since 1.2.0 apply_filters
        }
        // Default currency
        if (!$currency || $currency == '') {
            $currency = apply_filters('ipwp_reviewpost_nocurrency', 'USD'); // @since 1.2.0 apply_filters
        }

        update_post_meta($post_id, $ipwprprefix . 'product_name', $product_name);
        update_post_meta($post_id, $ipwprprefix . 'product_price', $product_price);
        update_post_meta($post_id, $ipwprprefix . 'currency', $currency);
        update_post_meta($post_id, $ipwprprefix . 'rating', $rating);
        update_post_meta($post_id, $ipwprprefix . 'reviewonoff', $reviewonoff);
    }

}