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PHPでORM「idiorm」を使えばかんたんにDBを操作できる

Posted at

idiormを使えば、PDOでSQLをゴリゴリ記述しなくてよくなる

どういうイメージかというと、素のJavaScriptでゴリゴリ記述するか、jQueryでスッキリ記述するか、その違いに似ています。もちろんidiormがjQueryの方。

idiormの基本的な使い方

https://github.com/j4mie/idiorm
からファイルをダウンロード。idiorm.phpだけあれば動きます。

config.php
require_once 'idiorm.php';

ORM::configure('mysql:host=localhost;dbname=test');
ORM::configure('username', 'root');
ORM::configure('password', 'root');
ORM::configure('driver_options', [
    PDO::MYSQL_ATTR_INIT_COMMAND       => 'SET NAMES utf8',
    PDO::ATTR_EMULATE_PREPARES         => false,
    PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true,
]);

idiorm.phpを読み込んでDBの読込設定。

かんたんな例

$person = ORM::for_table('person')->where('name', '山田')->find_one();

for_tableにテーブル名、
whereにフィールド名と検索したい文字列、
最後にfind_oneでひとつだけ検索,find_manyで複数できる。

上の例は
SELECT * FROM person WHERE name = "山田"
と同じです。

サンプル

詳しくはドキュメントにバッチリ書かれていますがご紹介。
http://idiorm.rtfd.org/

update

sample.php
<?php
$people = ORM::for_table('person')->find_many();
foreach ($people as $person) {
    $person->name = '山田太郎';
    $person->save();
}
?>

nameフィールドを全て山田太郎にしている。
下のコードも同じことをしていて、よりシンプル。

sample.php
<?php
ORM::for_table('person')->find_result_set()
->set('name', '山田太郎')
->save();
?>

insert

sample.php
<?php
$person = ORM::for_table('person')->create();
$person->name = 'Joe Bloggs';
$person->age = 40;
$person->save();
?>

count

sample.php
<?php
echo count(ORM::for_table('person')->find_result_set());
?>

and 検索

sample.php
<?php
$people = ORM::for_table('person')
            ->where(array(
                'name' => '山田太郎',
                'フィールド名' => '値'
            ))
            ->find_many();
?>

or 検索

sample.php
<?php
$people = ORM::for_table('person')
            ->where_any_is(array(
                array('name' => 'Joe', 'age' => 10),
                array('name' => 'Fred', 'age' => 20)))
            ->find_many();

// 下のSQLと同じ
SELECT * FROM `widget` WHERE (( `name` = 'Joe' AND `age` = '10' ) OR ( `name` = 'Fred' AND `age` = '20' ));
?>

○以上○未満

sample.php
<?php
//より下
$people = ORM::for_table('person')->where_lt('age', 10)->find_many();
//より上
$people = ORM::for_table('person')->where_gt('age', 5)->find_many();
//未満
$people = ORM::for_table('person')->where_lte('age', 10)->find_many();
//以上
$people = ORM::for_table('person')->where_gte('age', 5)->find_many();
?>

like , not like

sample.php
<?php
$people = ORM::for_table('person')->where_like('name', '%fred%')->find_many();
$people = ORM::for_table('person')->where_not_like('name', '%bob%')->find_many();
?>

order

sample.php
<?php
$people = ORM::for_table('person')->order_by_asc('gender')->order_by_desc('name')->find_many();
?>

group

sample.php
<?php
$people = ORM::for_table('person')->where('gender', 'female')->group_by('name')->find_many();
?>

as

sample.php
<?php
$people = ORM::for_table('person')->select('name', 'person_name')->find_many();

//下のSQLと同じ
SELECT `name` AS `person_name` FROM `person`;

$people_count = ORM::for_table('person')->select_expr('COUNT(*)', 'count')->find_many();

//下のSQLと同じ
SELECT COUNT(*) AS `count` FROM `person`;
?>

join

sample.php
<?php
$results = ORM::for_table('person')->join('person_profile', array('person.id', '=', 'person_profile.person_id'))->find_many();
?>

transaction

sample.php
<?php
// Start a transaction
ORM::get_db()->beginTransaction();

// Commit a transaction
ORM::get_db()->commit();

// Roll back a transaction
ORM::get_db()->rollBack();
?>
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