親サイト（blog_idが1）に作ったTrust Formのフォームを新規サイト作成時にコピーして、自動で固定ページにフォームを設置するコード

duplicate-trustform-for-multisite.php

<?php
add_action( 'wpmu_new_blog', function($blog_id) {

	//マルチサイトの親のお問い合わせデータを取ってくる
	switch_to_blog(1);
	$trust_form = get_posts( array('post_type'=>'trust-form') );
	
	if ( empty($trust_form) ) {
		return;
	}
	
	foreach ( $trust_form as $t ) {
		$form_id = $t->ID;
	}
	
	$post = get_post( $form_id );
	
	if ( empty($post) ) {
		return;
	}

	$new = array(
		    'post_author' => $post->post_author,
		    'post_date' => $post->post_date,
		    'post_date_gmt' => $post->post_date_gmt,
		    'post_content' => $post->post_content,
		    'post_title' => $post->post_title,
		    'post_excerpt' => $post->post_excerpt,
		    'post_status' => $post->post_status,
		    'comment_status' => $post->comment_status,
		    'ping_status' => $post->ping_status,
		    'post_password' => $post->post_password,
		    'post_name' => $post->post_name,
		    'to_ping' => $post->to_ping,
		    'pinged' => $post->pinged,
		    'post_modified' => $post->post_modified,
		    'post_modified_gmt' => $post->post_modified_gmt,
		    'post_content_filtered' => $post->post_content_filtered,
		    'post_parent' => $post->post_parent,
		    'guid' => $post->guid,
		    'menu_order' => $post->menu_order,
		    'post_type' => $post->post_type,
		    'post_mime_type' => $post->post_mime_type,
		    'comment_count' => $post->comment_count
		);
		
	$data = array( 
		    'name' => get_post_meta( $form_id, 'name', true ),
			'attention' => get_post_meta( $form_id, 'attention', true ),
			'type' => get_post_meta( $form_id, 'type', true ),
			'validation' => get_post_meta( $form_id, 'validation', true ),
			'attr' => get_post_meta( $form_id, 'attr', true ),
			'admin_mail' => get_post_meta( $form_id, 'admin_mail', true ),
			'user_mail' => get_post_meta( $form_id, 'user_mail', true ),
			'form_admin_input' => get_post_meta( $form_id, 'form_admin_input', true ),
			'form_admin_confirm' => get_post_meta( $form_id, 'form_admin_confirm', true ),
			'form_admin_finish' => get_post_meta( $form_id, 'form_admin_finish', true ),
			'form_front' => get_post_meta( $form_id, 'form_front', true ),
			'config' => get_post_meta( $form_id, 'config', true ),
			'other_setting' => get_post_meta( $form_id, 'other_setting', true )
		);

	switch_to_blog($blog_id);
	
	//新規作成したマルチサイトにコピーしたフォームを複製
	if ( !$new_id = wp_insert_post($new) ) {
		 return;
	}
	
	//フォームのカスタムフィールドをコピー
	update_post_meta( $new_id, 'name', $data['name'] );
	update_post_meta( $new_id, 'attention', $data['attention'] );
	update_post_meta( $new_id, 'type', $data['type'] );
	update_post_meta( $new_id, 'validation', $data['validation'] );
	update_post_meta( $new_id, 'attr', $data['attr'] );
	update_post_meta( $new_id, 'admin_mail', $data['admin_mail'] );
	update_post_meta( $new_id, 'user_mail', $data['user_mail'] );
	update_post_meta( $new_id, 'form_admin_input', $data['form_admin_input'] );
	update_post_meta( $new_id, 'form_admin_confirm', $data['form_admin_confirm'] );
	update_post_meta( $new_id, 'form_admin_finish', $data['form_admin_finish'] );
	update_post_meta( $new_id, 'form_front', $data['form_front'] );
	update_post_meta( $new_id, 'config', $data['config'] );
	update_post_meta( $new_id, 'other_setting', $data['other_setting'] );
	
	//固定ページにお問い合わせのショートコード埋め込む
	$new_page = array(
					'post_content' => '[trust-form id='.$new_id.']',
		    		'post_title'   => 'お問い合わせ',	
		    		'post_type'    => 'page',
		    		'post_status'  => 'publish'
	);
	wp_insert_post($new_page);
});