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<?php
declare(strict_types=1);
namespace Engelsystem\Migrations;
use Carbon\Carbon;
use Engelsystem\Database\Migration\Migration;
use Illuminate\Database\Eloquent\Collection;
use Illuminate\Database\Schema\Blueprint;
use stdClass;
/**
* This migration creates the news table and copies the existing News table records to the new one.
*/
class CreateNewsTable extends Migration
{
use ChangesReferences;
use Reference;
/**
* Creates the news table, copies the data and drops the News table.
*/
public function up(): void
{
$hasPreviousNewsTable = $this->schema->hasTable('News');
if ($hasPreviousNewsTable) {
// Rename because some SQL DBMS handle identifiers case insensitive
$this->schema->rename('News', 'PreviousNews');
}
$this->createNewNewsTable();
if ($hasPreviousNewsTable) {
$this->copyPreviousToNewNewsTable();
$this->changeReferences(
'PreviousNews',
'ID',
'news',
'id',
'unsignedInteger'
);
$this->schema->drop('PreviousNews');
}
}
/**
* Recreates the previous News table, copies back the data and drops the new news table.
*/
public function down(): void
{
// Rename as some SQL DBMS handle identifiers case insensitive
$this->schema->rename('news', 'new_news');
$this->createPreviousNewsTable();
$this->copyNewToPreviousNewsTable();
$this->changeReferences(
'new_news',
'id',
'News',
'ID',
'unsignedInteger'
);
$this->schema->drop('new_news');
}
/**
* @return void
*/
private function createNewNewsTable(): void
{
$this->schema->create('news', function (Blueprint $table) {
$table->increments('id');
$table->string('title', 150);
$table->text('text');
$table->boolean('is_meeting')->default(0);
$this->referencesUser($table, false);
$table->timestamps();
});
}
/**
* @return void
*/
private function copyPreviousToNewNewsTable(): void
{
$connection = $this->schema->getConnection();
/** @var stdClass[] $previousNewsRecords */
$previousNewsRecords = $connection
->table('PreviousNews')
->get();
foreach ($previousNewsRecords as $previousNews) {
$date = Carbon::createFromTimestamp($previousNews->Datum);
$connection->table('news')->insert([
'id' => $previousNews->ID,
'title' => $previousNews->Betreff,
'text' => $previousNews->Text,
'is_meeting' => $previousNews->Treffen,
'user_id' => $previousNews->UID,
'created_at' => $date,
'updated_at' => $date,
]);
}
}
/**
* @return void
*/
private function createPreviousNewsTable(): void
{
$this->schema->create('News', function (Blueprint $table) {
$table->increments('ID');
$table->integer('Datum');
$table->string('Betreff', 150)
->default('');
$table->text('Text');
$this->references($table, 'users', 'UID');
$table->boolean('Treffen')->default(false);
});
}
/**
* @return void
*/
private function copyNewToPreviousNewsTable(): void
{
$connection = $this->schema->getConnection();
/** @var Collection|stdClass[] $newsRecords */
$newsRecords = $connection
->table('new_news')
->get();
foreach ($newsRecords as $newsRecord) {
$date = Carbon::createFromFormat('Y-m-d H:i:s', $newsRecord->created_at)
->getTimestamp();
$connection->table('News')->insert([
'ID' => $newsRecord->id,
'Datum' => $date,
'Betreff' => $newsRecord->title,
'Text' => $newsRecord->text,
'UID' => $newsRecord->user_id,
'Treffen' => $newsRecord->is_meeting,
]);
}
}
}
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