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ORMã¯ä¸å¿«ãªã‚¢ãƒ³ãƒãƒ‘ターン | To Be Decided
ã“ã®ã‚¨ãƒ³ãƒˆãƒªã§ã¯ã€Yegor Bugayenkoã«ã‚ˆã‚‹è¨˜äº‹ã€ORM Is an Offensive Anti-Patternを紹介ã™ã‚‹ã€‚ (Yegorã‹ã‚‰å’Œè¨³ã¨è»¢è¼‰ã®è¨±å¯ã¯å¾—ãŸã€‚) 以下ã¯ãã®å…¨æ–‡ã®å’Œè¨³ã ãŒã€æ„訳超訳ãŒæ··ã˜ã£ã¦ã„ã‚‹ã®ã§ã€ã‚‚ã¨ã®ãƒ‹ãƒ¥ã‚¢ãƒ³ã‚¹ã‚’知りãŸã‘ã‚Œã°å…ƒè¨˜äº‹ã‚’èªã‚“ã§ã‚‚ã„ã„ã—ã€èªã¾ãªãã¦ã‚‚ã„ã„。 çµè«–ã‹ã‚‰è¨€ãˆã°ã€ORMã¯ã‚ªãƒ–ジェクト指å‘プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°ã®åŽŸå‰‡ã®å…¨ã¦ã«é•åã™ã‚‹ã²ã©ã„アンãƒãƒ‘ターンã 。オブジェクトをãƒãƒ©ãƒãƒ©ã«å¼•ã裂ãã€ã‚‚ã®è¨€ã‚ã¬å—身ãªãƒ‡ãƒ¼ã‚¿å…¥ã‚Œã«å¤‰ãˆã¦ã—ã¾ã†ã€‚ å°ã•ã„Webアプリケーションã‹ã‚‰ã€æ•°åƒã®ãƒ†ãƒ¼ãƒ–ルをCRUDæ“作ã™ã‚‹ã‚¨ãƒ³ã‚¿ãƒ¼ãƒ—ライズシステムã¾ã§ã€ã©ã‚“ãªã‚¢ãƒ—リケーションã«ã‚‚ORMãŒå˜åœ¨ã™ã‚‹ã“ã¨ã¯ã‚†ã‚‹ã›ãªã„。 代ã‚ã‚Šã«ãªã‚‹ã‚‚ã®ã¯? SQLを話ã™ã‚ªãƒ–ジェクトã 。 ORMã®ä»•çµ„㿠オブジェクト関係マッピング (Object-relatinal mappingã€ORM
[Android Tips] ActiveAndroid を使ã£ã¦ ActiveRecord ライク㫠SQLite ã‚’æ“作ã™ã‚‹ | DevelopersIO
リレーションシップを作りãŸã„å ´åˆã¯ä»¥ä¸‹ã®ã‚ˆã†ã« getMany() メソッドを使ã£ã¦å®Ÿè£…ã—ã¾ã™ã€‚ã“ã®å ´åˆã€Category : Item ãŒä¸€å¯¾å¤šã®ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒ³ã‚·ãƒƒãƒ—ã‚’æŒã¡ã¾ã™ã€‚ @Table(name = "Categories") public class Category extends Model { @Column(name = "Name") public String name; public List<Item> items() { return getMany(Item.class, "Category"); } } ä¿å˜ãƒ»æ›´æ–°ãƒ»å‰Šé™¤ãƒ»ã‚¯ã‚¨ãƒª 作æˆã—ãŸãƒ¢ãƒ‡ãƒ«ã‚¯ãƒ©ã‚¹ã‚’使ã£ã¦ DB ã«ä¿å˜ã—ãŸã‚Šã‚¯ã‚¨ãƒªã§å–å¾—ã—ãŸã‚Šã™ã‚‹ã«ã¯ä»¥ä¸‹ã®ã‚ˆã†ã«å®Ÿè£…ã—ã¾ã™ã€‚ã“れ㞠ActiveRecord スタイル。見やã™ã分ã‹ã‚Šã‚„ã™ãç´ æ™´ã‚‰ã—ã„ã§ã™ãï¼ // ä¿å˜ Item item = new Ite
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ベンãƒãƒ£ãƒ¼ç¤¾é•·ã§æŠ€è¡“者ã§:ベンãƒãƒ£ãƒ¼ç¤¾é•·ã§æŠ€è¡“者ã§: オブジェクト指å‘言語ã§å‡¦ç†ã—ãŸã‚‰ä¿å®ˆæ€§ãŒæ‚ªã„ï¼. ã¨ã„ã†ã®ã‚’ç›®ã«ã—ãŸã€‚è¦ã™ã‚‹ã«ã€ŒOO言語＋RDBãªçµ„ã¿åˆã‚ã›ã€ã«ãŠã„ã¦ã€O\Rマッピングã«é ¼ã‚‰ãšã«ã¡ã‚ƒã‚“ã¨SQLã¨ã‚¹ãƒˆã‚¢ãƒ‰ã‚’書ã„ãŸæ–¹ãŒã„ã„ã€ã¨è¨€ã†ã“ã¨ã§ã‚る。 L.staï½’ã¯å…ƒã€…Java屋ã§ãã‚Œã‹ã‚‰SQLã«ç§»ã£ãŸã®ã§ã€æœªã ã«è‡ªåˆ†ãŒä¸¡æ–¹ã‚’ãƒãƒƒã‚¯ã‚°ãƒ©ã‚¦ãƒ³ãƒ‰ã«æŒã¤äººé–“ã ã¨æ€ã£ã¦ã„る。O/Rマッピングã®ã‚¤ ンピーダンスミスマッãƒã‚’解決ã™ã‚‹ç°¡å˜ãªæ–¹æ³•ãŒå®Ÿã¯ç„¡ã„ã€ã¨è¨€ã†ãらã„ã«ã¯ä¸¡æ–¹ã‚’ç†è§£ã—ã¦ã„る。ã ã‹ã‚‰ã“ã言ã„ãŸã„ãŒã€ã“ã®æ–‡ç« ã€ç‰¹å®šã®DBãŒä¸å¤®ã«éŽ®åº§ã—ã¦ã„ã¦ã€ãã‚ŒãŒã™ã¹ã¦ã®ä¸å¿ƒã«ãªã‚‹ã‚ˆã†ãªæ¥å‹™ã‚·ã‚¹ãƒ†ãƒ ã«ãŠã„ã¦ã¯å®Œå…¨ã«æ£ã—ã„。ãŸã ã—ã€å…ƒã€…ãã†è¨€ã†ã‚·ã‚¹ãƒ†ãƒ を念é ã«ç½®ã„ã¦æ›¸ã‹ã‚ŒãŸæ–‡ç« ã§ã‚ã‚‹ã®ã§ã€ãã®ç‚¹ã¯ã¡ã‚ƒã‚“ã¨è€ƒãˆã‚‹ã¹ãã 。O/Rマッピングã«é ¼ã‚Šåˆ‡ã£ã¦ã€SQLã‚’ãã£ã¡ã‚Šæ›¸ã‹ãªã„ã€ã¨ã„ã†ã“ã¨ã‚’ã™ã‚‹ã¨æ€§èƒ½ãŒå‡º
Androidã§ä½¿ãˆã‚‹OR Mapper: ORMLite « NAVER Engineers' Blog
ã“ã‚“ã«ã¡ã¯ã€‚開発ãƒãƒ¼ãƒ ã®é§’æ´¥ã§ã™ã€‚ ã“ã“åŠå¹´ã»ã©ã€å¼Šç¤¾ã‚¢ãƒ—リLINEã®Android版を開発ã—ã¦ã„ã¾ã™ã€‚関係者一åŒã®é ‘張りもã‚ã£ã¦Androidユーザー 100万人é”æˆã¨ã„ã†éžå¸¸ã«ã†ã‚Œã—ã„状æ³ãªã®ã§ã™ãŒã€ã‹ãªã‚Šã®ãƒã‚¤ã‚¹ãƒ”ードã§é–‹ç™ºãŒé€²ã¿ã¾ã—ãŸã®ã§ã‚ã¾ã‚Šå†’険ã›ãšã«ã€åŠ›æŠ€ã§å°‘ã—æ³¥è‡ã実装ã—ã¦ã„る箇所もã‚ã‚Šã¾ã™ã€‚ データベース周りも普通ã«SQLiteDatabase経由ã§SQL文を書ã„ã¦ã„ã‚‹ã®ã§ã™ãŒã€ã§ãã‚Œã°OR Mapperを使ã„ãŸã‹ã£ãŸâ€¦ ã¨ã„ã†åçœç‚¹ãŒã‚ã‚Šã€ç¾åœ¨é–‹ç™ºçŠ¶æ³ãŒå°‘ã—è½ã¡ç€ã„㟠(ã®ã‹â€¦? 本当ã«â€¦?) 今ã®ã†ã¡ã«ãã£ã¡æ–¹é¢ã‚’調ã¹ã¦ãŠã“ã†ã‹ã¨æ€ã„ã¾ã™ã€‚ Androidã§ã¯ãã®ã‚¹ãƒšãƒƒã‚¯ã®éƒ½åˆä¸Š, 軽ã動作ã™ã‚‹OR MapperãŒå‘ã„ã¦ã„ãã†ã§ã™ã€‚ãã†ã„ã†è¦–点ã§è‰²ã€…探ã—ã¦è¦‹ãŸã¨ã“ã‚ORMLiteãŒè‰¯ã•ãã†ãªæ°—ãŒã—ã¾ã—ãŸã€‚æ£å¼ã«Androidã«å¯¾å¿œã—ã¦ã„ã‚‹ã¨è¬³ã£ã¦ã„ã‚‹ã®ã‚‚嬉ã—ã„ã¨ã“ã‚。
Mapping Objects to Relational Databases: O/R Mapping In Detail
Mapping Objects to Relational Databases: O/R Mapping In Detail Most modern business application development initiatives use object technology such as Java or C# to build the application software and relational databases to store the data. This isn't to say that you don't have other options, there are many applications built with procedural languages such as COBOL and many systems will use object d
ORMãŒã‚¢ãƒ³ãƒãƒ‘ターンã§ã‚ã‚‹11ã®ç†ç”±
サンフランシスコã®ãƒ—ãƒã‚°ãƒ©ãƒžLaurie Vossæ°ãŒæ›¸ã„ãŸè¦‹é€ƒã›ãªã„記事ãŒè³‘ã‚ã£ã¦ã„ã¾ã™ã€‚è¿‘å¹´ã®ãƒ•ãƒ¬ãƒ¼ãƒ ワークやライブラリã®å®šç•ªä¸ã®å®šç•ªORマッパーãŒæ—¢ã«ã‚¢ãƒ³ãƒãƒ‘ターンãªã®ã§ã¯ã¨ã„ã†ã®ãŒå½¼ã®ä¸»å¼µã§ã™ã€‚ã“ã®è¨˜äº‹ã‚’書ããã£ã‹ã‘ã«ãªã£ãŸã®ã¯ã“ã®ãƒ„イートã ãã†ã§ã™ã€‚ I cannot overstate the degree to which ORM is a dangerous antipattern. — Laurie Voss (@seldo) June 9, 2011 ORM ãŒå±é™ºãªã‚¢ãƒ³ãƒãƒ‘ターンã ã£ã¦ã„ã†ã®ã¯ã©ã‚Œã ã‘言ã£ã¦ã‚‚言ã„éŽãŽã‚‹ã“ã¨ã¯ãªã„ ã“ã®ãƒ„イートã«å¯¾ã—ã¦å„æ–¹é¢(ActiveRecord, Doctrine, Hibernate)ã‹ã‚‰å¤šãã®ï¼ˆæ¿€ã—ã„）返信ãŒå¯„ã›ã‚‰ã‚Œã¦æ›¸ã‹ã‚ŒãŸã®ãŒå•é¡Œã®ã‚¨ãƒ³ãƒˆãƒªã§ã™ã€‚ã¾ãšã¯ã‚¢ãƒ³ãƒãƒ‘ターンã¨ã¯ä½•ã‹ã®å®šç¾©ã¨ã—ã¦ä¸‹è¨˜ã®2ã¤ã‚’挙ã’ã¦ã„ã¾ã™ã€‚ 当åˆã¯æœ‰ç›Š
Doctrineã§SQLを直接実行ã™ã‚‹ - ゆã£ãã‚Š*ゆã£ãã‚Š
ORMã®æ§‹æ–‡ã‚’å¿…ãšä½¿ã†å¿…è¦ãªã‚“ã¦ãªã„ã®ã§ã™ã‚ˆã€‚ <?php // ãªã‚“ã§ã‚‚ã„ã„ã®ã§Connectionã¨ã£ã¦ãã‚‹ $employeeTable = Doctrine_Core::getTable('Employee'); $con = $employeeTable->getConnection(); $sql = "SELECT * FROM employee where YEAR(employed_at) = :year"; $employees = $con->fetchAll($sql, array(':year' => 2009)); $sql = "SELECT * FROM employee ORDER BY employed_at DESC LIMIT 1"; $employee = $con->fetchRow($sql); $sql = "SELECT id FROM e
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First published at Tuesday 28 August 2007 Warning: This blog post is more then 17 years old – read and use with care. It is not really Active Record (AR) which sucks but the implied, perhaps just misinterpreted, common usage as an ORM (object relational mapping). To summarize the following blog post in one sentence, so that you may skip reading it: Active Record may be used to implement ORM, but i
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New ORM Designer 3 called Skipper is available on our new site www.skipper18.com visual editor for ORM frameworks Create your visual model and let ORM Designer to export schema definition files for you. Save up to 75 % of your time thanks to automatic export, error elimination and other improvements.
PHP DataMapper — Spot ORM
Solid Foundation. No Magic. Spot is a simple and efficient DataMapper built on Doctrine DBAL. PHP 5.4+ with support for MySQL, PostgreSQL, SQLite, and more... View on GitHub    Read The Docs No AnnotationsAnnotations are not code. They are not extendible, there are no type hints or auto-completion. No Proxy ClassesThe Entities you define are the same entities that both you and Spot will be workin
YappoLogs: KVSã§ORマッパーを使ã†ã¨ã„ã†äº‹
KVSã§ORマッパーを使ã†ã¨ã„ã†äº‹ ケイレã‚.jpã®ä¸ã§ã‚±ã‚¤ãƒ¬ã‚.jpã«æ‹›å¾…ã—ã¦æ¬²ã—ã„人を呼ã³ã‹ã‘ã¦ã‚‚絶賛スルーã•ã‚Œã¦ã‚‹Yappoã§ã™ã€‚ã•ã¦ä»Šå›žã¯ä»Šå··ã§å¤§äººæ°—ã®Key Value Storageã§ORマッパーを使ã†äº‹ã«ã¤ã„ã¦ãŠè©±ã™ã‚‹ã®ã˜ã‚ƒã€‚ 一般的ã«ORマッパーã¨ã¯ã‚ªãƒ–ジェクトã¨ãƒªãƒ¬ãƒ¼ã‚·ãƒ§ãƒŠãƒ«ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã‚’マッピングã™ã‚‹ç‚ºã®ä»•çµ„ã¿ã®å‘¼ã³åã ã¨è¨€ã†ã®ã¯çŸ¥ã‚‰ã‚Œã¦ã„る所ã§ã™ã€‚ã¯ã„ã€ãã†ã™ã‚‹ã¨KVSã£ã¦ã®ã¯ãƒãƒƒã‚·ãƒ¥ãƒ‡ãƒ¼ã‚¿ãƒ™ãƒ¼ã‚¹ã§ã‚ã‚‹ã‚ã‘ãªã®ã§ãŠã‹ã—ã„ã§ã™ã。今回ã®è©±ã¯Data::Model::Driver::Memcachedを使ã†äº‹ã‚’å‰æã¨ã—ã¦ã‚‹ã®ã§å•é¡ŒãŒç„¡ã„ã®ã§ã™ã€‚ãªãœãªã‚‰ã€Œdata/object mapperã€ã¨ã‹æ›¸ã„ã¦ã‚ã‚‹ã‹ã‚‰ã€‚ ã„ã‚ゆるPerlãªORマッパーã£ã¦ã®ã¯è¡Œãƒ‡ãƒ¼ã‚¿ã‚’HASHã§ç®¡ç†ã—ã¾ã™ã€‚ãã‚Œã¯RDBãŒä¸€èˆ¬çš„ã«è¡¨å½¢å¼ã§ãƒ‡ãƒ¼ã‚¿ã‚’管ç†ã—ã¦ã„ã‚‹ã‹ã‚‰ãªã‚“ã ã¨æ€ã„ã¾ã™ã€‚ãªã‚“ã§KVSをオブジ
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4. Basic Mapping — Doctrine 2 ORM 2.0.0 documentation
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