「Php/Symfony/Symfony2/doctrine/一括処理」の版間の差分
提供: 初心者エンジニアの簡易メモ
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[2016-12-26 18:21:32] doctrine.DEBUG: INSERT INTO users (name, description, category_id) VALUES (?, ?, ?) {"1":"taro","2":"太郎です","3":null} [] | [2016-12-26 18:21:32] doctrine.DEBUG: INSERT INTO users (name, description, category_id) VALUES (?, ?, ?) {"1":"taro","2":"太郎です","3":null} [] | ||
[2016-12-26 18:21:32] doctrine.DEBUG: "COMMIT" [] [] | [2016-12-26 18:21:32] doctrine.DEBUG: "COMMIT" [] [] | ||
+ | |||
+ | ==ループでのinsertの注意点== | ||
+ | for ($i = 1; $i < 10; $i++) { | ||
+ | $user = new \Acme\HelloBundle\Entity\User(); | ||
+ | $user->setName('taro'); | ||
+ | $user->setDescription('太郎です'); | ||
+ | $em->persist($user); | ||
+ | $em->flush(); | ||
+ | $em->clear(); | ||
+ | } | ||
+ | $em->clear();しないとメモリ不足になる |
2016年12月27日 (火) 11:11時点における最新版
update処理を2つ(外部キーなし)
$category = new \Acme\HelloBundle\Entity\Category(); $category->setName("3組"); $category4 = new \Acme\HelloBundle\Entity\Category(); $category4->setName("4組"); $em = $this->getDoctrine()->getEntityManager(); $em->persist($category4); $em->persist($category); $em->flush();
- persistの順序通りに処理される。persistの順序を入れ替ええるとログも逆になる
[2016-12-26 18:25:38] doctrine.DEBUG: "START TRANSACTION" [] [] [2016-12-26 18:25:38] doctrine.DEBUG: INSERT INTO categorys (name) VALUES (?) {"1":"4組"} [] [2016-12-26 18:25:38] doctrine.DEBUG: INSERT INTO categorys (name) VALUES (?) {"1":"3組"} [] [2016-12-26 18:25:38] doctrine.DEBUG: "COMMIT" [] []
update処理を2つ(外部キーあり)
$category = new \Acme\HelloBundle\Entity\Category(); $category->setName("3組"); $user = new \Acme\HelloBundle\Entity\User(); $user->setName('taro'); $user->setDescription('太郎です'); $em = $this->getDoctrine()->getEntityManager(); $em->persist($user); $em->persist($category); $em->flush();
- categoryを後にpersistしても外部キーを貼ってる方(category)から先に実行されるっぽい。
- persistの順序を逆にしてもログの順序は同じだった
[2016-12-26 18:21:32] doctrine.DEBUG: "START TRANSACTION" [] [] [2016-12-26 18:21:32] doctrine.DEBUG: INSERT INTO categorys (name) VALUES (?) {"1":"3組"} [] [2016-12-26 18:21:32] doctrine.DEBUG: INSERT INTO users (name, description, category_id) VALUES (?, ?, ?) {"1":"taro","2":"太郎です","3":null} [] [2016-12-26 18:21:32] doctrine.DEBUG: "COMMIT" [] []
ループでのinsertの注意点
for ($i = 1; $i < 10; $i++) { $user = new \Acme\HelloBundle\Entity\User(); $user->setName('taro'); $user->setDescription('太郎です'); $em->persist($user); $em->flush(); $em->clear(); }
$em->clear();しないとメモリ不足になる