PHP code example of patricknelson / silverstripe-migrations

1. Go to this page and download the library: Download patricknelson/silverstripe-migrations library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

patricknelson / silverstripe-migrations example snippets




class Migration_ChangeSerializeToJson extends Migration {

	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up() {
		// Go through each DataObject and convert the column format from serialized to JSON.
		foreach(MyDataObject::get() as $instance) {
			$instance->EncodedField = json_encode(unserialize($instance->EncodedField));
		}
	}

	/**
	 * Reverse the migration (this does the opposite of the method above).
	 *
	 * @return void
	 */
	public function down() {
		// Go through each DataObject and convert the column format back from JSON to serialized again.
		foreach(MyDataObject::get() as $instance) {
			$instance->EncodedField = serialize(json_decode($instance->EncodedField));
		}
	}
}