function init()
    {
        $prog = new rtProgress();
        $pending = $this->get_pending_count();
        $total = $this->get_total_count();
        $last_id = $this->get_last_imported();
        $done = $total - $pending;
        $admin_ajax = admin_url('admin-ajax.php');
        ?>
		<div class="wrap">
			<h2><?php 
        esc_html_e('rtMedia: Upgrade rtMedia activity', 'buddypress-media');
        ?>
</h2>
			<?php 
        wp_nonce_field('rtmedia_media_activity_upgrade_nonce', 'rtmedia_media_activity_upgrade_nonce');
        echo '<span class="pending">' . sprintf(esc_html__('%s (estimated)', 'buddypress-media'), esc_html(rtmedia_migrate_formatseconds($total - $done))) . '</span><br />';
        echo '<span class="finished">' . esc_html($done) . '</span>/<span class="total">' . esc_html($total) . '</span>';
        echo '<img src="images/loading.gif" alt="syncing" id="rtMediaSyncing" style="display:none" />';
        $temp = $prog->progress($done, $total);
        $prog->progress_ui($temp, true);
        ?>
			<style type="text/css">
				#rtprogressbar {
					background-color: #444;
					border-radius: 13px;
					margin-bottom: 10px;
					padding: 3px;
				}

				#rtprogressbar div {
					background-color: #fb6003;
					border-radius: 10px;
					height: 20px;
					width: 0;
				}
			</style>
			<script type="text/javascript">
				var fail_id = new Array();
				var ajax_data;
				jQuery(document).ready(function (e) {
					jQuery("#toplevel_page_rtmedia-settings").addClass("wp-has-current-submenu")
					jQuery("#toplevel_page_rtmedia-settings").removeClass("wp-not-current-submenu")
					jQuery("#toplevel_page_rtmedia-settings").addClass("wp-menu-open")
					jQuery("#toplevel_page_rtmedia-settings>a").addClass("wp-menu-open")
					jQuery("#toplevel_page_rtmedia-settings>a").addClass("wp-has-current-submenu")
					if (db_total < 1)
						jQuery("#submit").attr('disabled', "disabled");
				});
				function db_start_migration(db_done, db_total, last_id) {

					if (db_done < db_total) {
						jQuery("#rtMediaSyncing").show();
						ajax_data = {
							"action": "rtmedia_activity_upgrade",
							"done": db_done,
							"last_id": last_id,
							"nonce": jQuery.trim(jQuery('#rtmedia_media_activity_upgrade_nonce').val())
						};
						jQuery.ajax({
							url: '<?php 
        echo esc_url($admin_ajax);
        ?>
',
							type: 'post',
							data: ajax_data,
							success: function (sdata) {

								try {
									data = JSON.parse(sdata);
								} catch (e) {
									jQuery("#submit").attr('disabled', "");
								}
								if (data.status) {
									done = parseInt(data.done);
									total = parseInt(data.total);
									var progw = Math.ceil((done / total) * 100);
									if (progw > 100) {
										progw = 100;
									}
									jQuery('#rtprogressbar>div').css('width', progw + '%');
									jQuery('span.finished').html(done);
									jQuery('span.total').html(total);
									jQuery('span.pending').html(data.pending);
									if (data.imported === false) {
										fail_id.push(data.activity_id);
									}
									db_start_migration(done, total, parseInt(data.activity_id));
								} else {
									alert("Migration completed.");
									jQuery("#rtMediaSyncing").hide();
								}
							},
							error: function () {
								alert("Error During Migration, Please Refresh Page then try again");
								jQuery("#submit").removeAttr('disabled');
							}
						});
					} else {
						data = {
							action: 'rtmedia_activity_done_upgrade'
						};
						jQuery.post('<?php 
        echo esc_sql($admin_ajax);
        ?>
', data, function () {
							alert("Database upgrade completed.");
						});
						if (fail_id.length > 0) {
							rtm_show_file_error();
						}
						jQuery("#rtMediaSyncing").hide();
					}
				}
				function rtm_show_file_error() {
					jQuery('span.pending').html("Some activities are failed to upgrade, Don't worry about that.");
				}
				var db_done = <?php 
        echo esc_js($done);
        ?>
;
				var db_total = <?php 
        echo esc_js($total);
        ?>
;
				var last_id = <?php 
        echo esc_js($last_id);
        ?>
;
				jQuery(document).on('click', '#submit', function (e) {
					e.preventDefault();
					db_start_migration(db_done, db_total, last_id);
					jQuery(this).attr('disabled', 'disabled');
				});
			</script>
			<hr/>
			<?php 
        if (!(isset($rtmedia_error) && true === $rtmedia_error)) {
            ?>
				<input type="button" id="submit" value="start" class="button button-primary"/>
			<?php 
        }
        ?>
		</div>
		<?php 
    }
 function return_migration($media = false, $migrate = true)
 {
     $total = $this->get_total_count();
     $pending = $this->get_pending_count($media->id);
     $done = $total - $pending;
     if ($pending < 0) {
         $pending = 0;
         $done = $total;
     }
     if ($done > $total) {
         $done = $total;
     }
     rtmedia_update_site_option('rtmedia_media_size_import_pending_count', $pending);
     $pending_time = rtmedia_migrate_formatseconds($pending) . ' (estimated)';
     echo json_encode(array('status' => true, 'done' => $done, 'total' => $total, 'pending' => $pending_time, 'media_id' => $media->id, 'imported' => $migrate));
     die;
 }
 function return_migration($media, $migrate = true)
 {
     $total = $this->get_total_count();
     $pending = $this->get_pending_count($media->id);
     $done = $total - $pending;
     if ($pending < 0) {
         $pending = 0;
         $done = $total;
     }
     if ($done > $total) {
         $done = $total;
     }
     rtmedia_update_site_option('rtmedia_media_size_import_pending_count', $pending);
     $pending_time = rtmedia_migrate_formatseconds($pending) . " (estimated)";
     echo json_encode(array("status" => true, "done" => $done, "total" => $total, "pending" => $pending_time, "media_id" => $media->id, "imported" => $migrate));
     die;
 }