{"id":6988,"date":"2016-07-14T18:22:14","date_gmt":"2016-07-14T09:22:14","guid":{"rendered":"http:\/\/www.skyarch.net\/blog\/?p=6988"},"modified":"2016-10-19T11:18:00","modified_gmt":"2016-10-19T02:18:00","slug":"php%e3%81%aedoctrine%e3%81%a7sql%e3%81%8c%e4%b9%b1%e7%99%ba%e3%81%95%e3%82%8c%e3%82%8b%e4%ba%8b%e8%b1%a1%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6","status":"publish","type":"post","link":"https:\/\/www.skyarch.net\/blog\/php%e3%81%aedoctrine%e3%81%a7sql%e3%81%8c%e4%b9%b1%e7%99%ba%e3%81%95%e3%82%8c%e3%82%8b%e4%ba%8b%e8%b1%a1%e3%81%ab%e3%81%a4%e3%81%84%e3%81%a6\/","title":{"rendered":"PHP\u306eDoctrine\u3067SQL\u304c\u4e71\u767a\u3055\u308c\u308b\u4e8b\u8c61\u306b\u3064\u3044\u3066"},"content":{"rendered":"

Lazy Load\u306b\u3088\u3063\u3066SQL\u304c\u4e71\u767a\u3055\u308c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8ca0\u8377\u304c\u9ad8\u304f\u306a\u308b\u6050\u308c\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n

Lazy Load\u3068\u306f\u3001\u5fc5\u8981\u306a\u3068\u304d\u306bSQL\u3092\u767a\u884c\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002<\/p>\n

\u3053\u308c\u304b\u3089\u3001\u4f8b\u3092\u793a\u3057\u306a\u304c\u3089\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u3002
\n\u203b\u3053\u306e\u8a18\u4e8b\u3067\u306fDoctrine 2.4.7\u3092\u4f7f\u7528\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n

\u4ee5\u4e0b\u306f\u3001user\u3068post\u304c\uff11\u5bfe\u591a\u306e\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u3092\u6301\u3063\u3066\u3044\u308bEntity\u3067\u3059\u3002<\/p>\n

\r\nclass User implements UserInterface\r\n{\r\n\r\npublic function __construct()\r\n{\r\n$this->posts = new ArrayCollection();\r\n}\r\n\r\n\/**\r\n* @var integer $id\r\n*\r\n* @ORM\\Column(name="id", type="integer")\r\n* @ORM\\Id\r\n* @ORM\\GeneratedValue(strategy="AUTO")\r\n*\/\r\nprivate $id;\r\n\r\n\/**\r\n* @var string $name\r\n*\r\n* @ORM\\Column(name="name", type="string", length=255)\r\n*\/\r\nprivate $name;\r\n\r\n\/**\r\n* @ORM\\OneToMany(targetEntity="Post", mappedBy="user")\r\n* @var Post[] $posts\r\n*\/\r\nprivate $posts;\r\n\r\n\/**\r\n*\r\n* @return integer\r\n*\/\r\npublic function getId()\r\n{\r\nreturn $this->id;\r\n}\r\n\r\n\/**\r\n* @param string $name\r\n*\/\r\npublic function setName($name)\r\n{\r\n$this->name = $name;\r\n}\r\n\r\n\/**\r\n* @return string\r\n*\/\r\npublic function getName()\r\n{\r\nreturn $this->name;\r\n}\r\n\r\n\/**\r\n* @return Post[]\r\n*\/\r\npublic function getPosts()\r\n{\r\nreturn $this->posts;\r\n}\r\n\r\n\/**\r\n* @param Post $post\r\n*\/\r\npublic function addPost($post)\r\n{\r\n$post->setUser($this);\r\n$this->posts->add($post);\r\n}\r\n}\r\n<\/pre>\n
 <\/p>\n
\r\nclass Post\r\n{\r\n\/**\r\n* @var integer\r\n*\r\n* @ORM\\Column(name="id", type="integer")\r\n* @ORM\\Id\r\n* @ORM\\GeneratedValue(strategy="AUTO")\r\n*\/\r\nprivate $id;\r\n\r\n\/**\r\n* @var string\r\n*\r\n* @ORM\\Column(name="title", type="string", length=100, nullable=true, unique=false)\r\n*\/\r\nprivate $title;\r\n\r\n\/**\r\n* @var string\r\n*\r\n* @ORM\\Column(name="body", type="text")\r\n*\/\r\nprivate $body;\r\n\r\n\/**\r\n* @var User\r\n*\r\n* @ORM\\ManyToOne(targetEntity="User")\r\n* @ORM\\JoinColumns({\r\n* @ORM\\JoinColumn(name="user_id", referencedColumnName="id")\r\n* })\r\n*\/\r\nprivate $user;\r\n\/**\r\n*\r\n* @return integer\r\n*\/\r\npublic function getId()\r\n{\r\nreturn $this->id;\r\n}\r\n\r\n\/**\r\n*\r\n* @param string $title\r\n*\/\r\npublic function setTitle($title)\r\n{\r\n$this->title = $title;\r\n}\r\n\r\n\/**\r\n*\r\n* @return string\r\n*\/\r\npublic function getTitle()\r\n{\r\nreturn $this->title;\r\n}\r\n\r\n\/**\r\n*\r\n* @param string $body\r\n*\/\r\npublic function setBody($body)\r\n{\r\n$this->body = $body;\r\n}\r\n\r\n\/**\r\n*\r\n* @return string\r\n*\/\r\npublic function getBody()\r\n{\r\nreturn $this->body;\r\n}\r\n\r\n\/**\r\n*\r\n* @return User\r\n*\/\r\npublic function getUser()\r\n{\r\nreturn $this->user;\r\n}\r\n\r\n\/**\r\n*\r\n* @param User $user\r\n*\/\r\npublic function setUser($user)\r\n{\r\n$this->user = $user;\r\n}\r\n}\r\n<\/pre>\n
\u305d\u3057\u3066\u3001\u4ee5\u4e0b\u306f\u30e6\u30fc\u30b6\u30fc\u3068\u305d\u308c\u306b\u7d10\u3065\u304f\u6295\u7a3f\u8a18\u4e8b\u3092\u53d6\u5f97\u3059\u308bDQL\u3067\u3059\u3002<\/p>\n
\r\n$qb = $this->createQueryBuilder('user');\r\n$qb->select('user')\r\n      ->leftJoin('user.posts', 'posts')\r\n      ->where($qb->expr()->eq('user.id', $userId))\r\n\r\nreturn $qb->getQuery()->getSingleResult();\r\n<\/pre>\n
\u4e0a\u8a18\u306e\u7d50\u679c\u3092user\u5909\u6570\u306b\u5165\u308c\u3066\u3001twig\u3067\u4f7f\u7528\u3059\u308b\u3068<\/p>\n
\r\n\u30e6\u30fc\u30b6\u30fc\u540d: {{ user.getName }}\r\n\r\n\u6295\u7a3f\u8a18\u4e8b\r\n{% for post in user.getPosts %}\r\n     \u30bf\u30a4\u30c8\u30eb: {{ post.getTitle }}\r\n\r\n     \u5185\u5bb9\r\n     {{ post.getBody }}\r\n{% endfor %}\r\n<\/pre>\n
HTML\u306a\u3069\u306f\u7701\u7565\u3057\u307e\u3057\u305f\u304c\u3001\u3053\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002
\n\u30dd\u30a4\u30f3\u30c8\u306ffor\u6587\u306euser.posts\u306e\u90e8\u5206\u3067\u3059\u3002
\n\u3053\u3053\u3067\u65b0\u305f\u306buser\u306b\u7d10\u3065\u304fpost\u3092\u53d6\u5f97\u3059\u308b\u305f\u3081\u306eSQL\u304c\u767a\u884c\u3055\u308c\u307e\u3059\u3002
\n\u3088\u3063\u3066\u3001SQL\u304c\u6700\u4f4e\uff12\u56de<\/p>\n
\r\n$qb->getQuery()->getSingleResult()\r\n<\/pre>\n
\u306e\u6642\u3068<\/p>\n
\r\nuser.getPosts\r\n<\/pre>\n
\u306e\u6642\u306b\u767a\u884c\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002
\npost\u306e\u30c7\u30fc\u30bf\u304c\u8907\u6570\u3042\u308b\u5834\u5408\u3001\u305d\u306e\u56de\u6570\u5206SQL\u304c\u767a\u884c\u3055\u308c\u307e\u3059\u3002
\n\u306a\u305c\u306a\u3089\u3001DQL\u306eselect\u53e5\uff08$qb->select('user')\uff09\u3067\u30e6\u30fc\u30b6\u30fc\u3057\u304b\u30bb\u30ec\u30af\u30c8\u3057\u3066\u3044\u306a\u3044\u305f\u3081
\n\u305d\u306e\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306e\u30ea\u30ec\u30fc\u30b7\u30e7\u30f3\u30d7\u30ed\u30d1\u30c6\u30a3\u3092get\u3059\u308b\u3060\u3051\u3067\u300cDoctrine \u304c\u7121\u8a00\u3067\u4e8c\u3064\u76ee\u306e\u30af\u30a8\u30ea\u3092\u767a\u884c\u3059\u308b\u300d\u304b\u3089\u3067\u3059\u3002<\/p>\n
Lazy Load\u3092\u767a\u751f\u3055\u305b\u306a\u3044\u305f\u3081\u306b\u306f<\/p>\n
\r\n$qb->select('user')\r\n<\/pre>\n
\u3067\u306f\u306a\u304f<\/p>\n
\r\n$qb->select('user', 'posts')\r\n<\/pre>\n
\u3068\u3057\u306a\u3051\u3089\u3070\u306a\u3089\u306a\u3044\u306e\u3067\u3059\u3002
\n\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001<\/p>\n
\r\n$qb->getQuery()->getSingleResult()\r\n<\/pre>\n
\u306e\u6642\u306e\u4e00\u56de\u306eSQL\u3067\u3001post\u306e\u60c5\u5831\u307e\u3067\u53d6\u5f97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n
 <\/p>\n","protected":false},"excerpt":{"rendered":"
Lazy Load\u306b\u3088\u3063\u3066SQL\u304c\u4e71\u767a\u3055\u308c\u30c7\u30fc\u30bf\u30d9\u30fc\u30b9\u306e\u8ca0\u8377\u304c\u9ad8\u304f\u306a\u308b\u6050\u308c\u304c\u3042\u308b\u306e\u3067\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002 Lazy Load\u3068\u306f\u3001\u5fc5\u8981\u306a\u3068\u304d\u306bSQL\u3092\u767a\u884c\u3059\u308b\u4ed5\u7d44\u307f\u3067\u3059\u3002 \u3053\u308c\u304b\u3089\u3001\u4f8b\u3092\u793a\u3057\u306a\u304c\u3089\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059\u3002 \u203b\u3053\u306e\u8a18…<\/p>\n","protected":false},"author":1,"featured_media":7570,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_locale":"ja","_original_post":"6988","footnotes":""},"categories":[23,9],"tags":[175,178,179,176],"class_list":{"0":"post-6988","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-23","8":"category-dev","9":"tag-doctrine","10":"tag-lazy-load","11":"tag-one-to-many-join","12":"tag-symfony2","13":"ja"},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts\/6988","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/comments?post=6988"}],"version-history":[{"count":38,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts\/6988\/revisions"}],"predecessor-version":[{"id":7464,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/posts\/6988\/revisions\/7464"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/media\/7570"}],"wp:attachment":[{"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/media?parent=6988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/categories?post=6988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skyarch.net\/blog\/wp-json\/wp\/v2\/tags?post=6988"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}