Browsing Core Data databases using F-Script
F-Script, the Cocoa-based scripting environment, now provides some great tools for exploring Core Data databases. I couldn’t figure out how to easily open up my databases, other than manually creating a managed object model, then a persistent store coordinator, then a managed object context on the console. I couldn’t find any existing tools, and I wanted a quick workflow for opening up my database
Core Data multi thread application
I'm trying to use core data in a multi thread way. I simply want to show the application with the previously downloaded data while downloading new data in background. This should let the user access the application during update process. I have a NSURLConnection which download the file asyncronously using delegate (and showing the progress), then i use an XMLParser to parse the new data and create
Cocoaã®æ—¥ã€…: [Mac][iOS] NSCompoundPredicate ã§æ¡ä»¶ã‚’ã¾ã¨ã‚ã‚‹
iOS/iPhone/iPad/MacOSX プãƒã‚°ãƒ©ãƒŸãƒ³ã‚°, Objective-C, Cocoaãªã© è¨å®šã•ã‚ŒãŸå€¤ã‚’元㫠NSPredicate を作æˆã—ã€Core Data ã«å¯¾ã—ã¦æ¤œç´¢ã‚’ã‹ã‘ã‚‹ã®ã ãŒã€ã“ã†ã„ã†å ´åˆã« NSCompoundPredicate ãŒå½¹ã«ç«‹ã¤ã€‚ NSCompoundPredicate Class Reference å„々ã®æ¡ä»¶ã¯å¿…ãšã—も指定ã•ã‚Œã‚‹ã‚ã‘ã§ã¯ãªã„ã®ã§æ¤œç´¢æ¡ä»¶ã®é …ç›®ã¯å¯å¤‰ã¨ãªã‚‹ã€‚普通㮠NSPredicate を使ã†å ´åˆã€æ¡ä»¶ã®æœ‰ç„¡ã«ã‚ˆã£ã¦æ–‡å—列ã®é€£çµã‚’使ã£ã¦æ¡ä»¶ã‚’構æˆã™ã‚‹å¿…è¦ãŒã‚る。ã“ã‚“ãªæ„Ÿã˜ã€‚ NSMutableString* fmt = [NSMutableString string]; NSMutableArray* array = [NSMutableArray array]; if (name) { [fmt appendString:
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Cocoaã®æ—¥ã€…: CoreData - 大é‡ãƒ‡ãƒ¼ã‚¿ã‚’扱ã†å ´åˆã®ãƒ¡ãƒ¢ãƒªåˆ©ç”¨é‡ã‚’減らã™
データ件数ã¯ã€Customer㌠500件ã€KarteãŒ6,000件（Customer１件ã«ã¤ãKarte 12件）ã¨ãªã£ã¦ã„ã¦ã€ãã‚Œãžã‚Œã‚’１ã¤ã® CSVファイルã¸æ›¸ã出ã™ã€‚ 処ç†ã¯æ¬¡ã®ã‚ˆã†ãªæ„Ÿã˜ã«ãªã‚‹ã€‚ NSMangedObjectContext* moc = [å–å¾—]; NSArray* customers = [moc Customer全件å–å¾—]; for (NSManagedObject* customer in customers) { NSArray* kartes = [moc Karteå–得・æ¡ä»¶ï¼šcustomer]; for (NSManagedObject* karte in kartes) { [CSV１行書ã出ã—]; } }メモリã®ãƒ•ãƒƒãƒˆãƒ—リント（利用状æ³ï¼‰ã¯ã“ã‚“ãªæ„Ÿã˜ã€‚ Customer, Karte を１件ã¥ã¤èªã¿è¾¼ã‚€åº¦ã«ãƒ¡ãƒ¢ãƒªãŒæ¶ˆè²»ã•ã‚Œã€ãƒ•ãƒƒãƒˆãƒ—リントãŒå¢—大ã—
iPhone Development: Core Data Library
Monday, April 12, 2010 Core Data Library For quite some time, I've been thinking about ways to improve the use of UITableViewController. I experimented a bit with a property-list driven model, and then simplified that into the paired-array version that is in More iPhone 3 Development. One of the things on my "would like to do list" has been to revisit that and create a good, robust tool to make ta
inessential: On switching away from Core Data
A lot of the work I’ve been doing the last several months is optimizing performance for NetNewsWire for iPhone. The changes haven’t shipped yet, because I’m not quite finished. But one part of this might be interesting to other developers, so I figured I’d write it up. I optimized as much as I could, spent tons of time in Shark, went all multi-threaded with Core Data, switched away from my own que
2008-10-16 - at_yasuã®æ—¥è¨˜ | CoreData Migration - xcmappingmodel ç·¨
å…ˆã«æ³¨æ„：ã“ã‚Œã¯ãƒ¡ãƒ¢æ›¸ãã§ã™ã€‚é–“é•ã„ç‰ã‚„èªã¿ã«ãã„ç‰ãŒã‚ã‚‹ã‘ã©ã€ã”了承をã°ã€‚ ã¨ã„ã†ã‚ã‘ã§ã€CoreDataã®DBをソフトウェアã§ç§»è¡Œã™ã‚‹æ–¹æ³•ã§ã™ã€‚å‹¿è«–APIã¯ã‚ã‚Šã¾ã—ã¦ã€http://developer.apple.com/documentation/Cocoa/Conceptual/CoreDataVersioning/Introduction/Introduction.htmlã‚’å‚考ã—ã¦ä¸‹ã•ã„。 ãªãŠä¸‹è¨˜ã‹ã‚‰ã€ã‚¨ãƒ³ãƒ†ã‚£ãƒ†ã‚£ã®äº‹ã‚’テーブルã€ãƒ—ãƒãƒ‘ティã®äº‹ã‚’フィールドã€ã¨å‘¼ã³ã¾ã™ã€‚*1 今回ã¯ä¸€ç•ªæ‰‹è»½ãªã€MappingModelã‹ã‚‰ã€‚ã“ã‚Œã¯ã€æ—§ãƒ†ãƒ¼ãƒ–ルã®ãƒ‡ãƒ¼ã‚¿ã‹ã‚‰æ–°ãƒ†ãƒ¼ãƒ–ルã¸ç§»è¡Œã™ã‚‹éš›ã«ã€ãã‚Œãžã‚Œã®ãƒ•ã‚£ãƒ¼ãƒ«ãƒ‰ã®ãƒ‡ãƒ¼ã‚¿ã«æ•´åˆæ€§ã‚’ä¿ã¤ç‚ºã«å®Ÿè¡Œã•ã›ã‚‹å¼ãªã©ã‚’書ãã¾ã™ã€‚ 今回ã¯Appleã®ã‚µãƒ³ãƒ—ルコードMigrationV2ã®ãƒ†ãƒ¼ãƒ–ルを元ã«èª¬æ˜Žã€‚ 下ã«æ—§æ–°ã®ãƒ†ãƒ¼ãƒ–ルã®ç”»åƒãŒã‚ã‚Šã¾ã™ã®ã§å‚考ã«ã—ã¦
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CoreData ã§ç™ºè¡Œã•ã‚Œã¦ã„ã‚‹ SQL をデãƒãƒƒã‚°å‡ºåŠ›ã™ã‚‹
Mac Dev Center: Core Data Programming Guide: Core Data Performance ã“ã®ä¸ã® "Analyzing Fetch Behavior with SQLite" ã«ã€ã‚³ãƒžãƒ³ãƒ‰ãƒ©ã‚¤ãƒ³å¼•æ•°ã«æ¬¡ã‚’指定ã™ã‚‹ã¨ CoreDataã‹ã‚‰ SQLite ã¸ç™ºè¡Œã•ã‚Œã‚‹ SQL をデãƒãƒƒã‚°å‡ºåŠ›ã§ãã‚‹ã¨ã®è¨˜è¿°ãŒã‚ã£ãŸã€‚ -com.apple.CoreData.SQLDebug 1 ã‚„ã£ã¦ã¿ã‚ˆã†ã€‚ 実行å¯èƒ½ãƒ•ã‚¡ã‚¤ãƒ«ã®è¨å®šã‚’é–‹ã。 「起動時ã«æ¸¡ã•ã‚Œã‚‹å¼•æ•°ã€ã«ä¸Šè¨˜ã®å¼•æ•°ã‚’è¿½åŠ ã™ã‚‹ã€‚ 実行ã™ã‚‹ã€‚以下ã€ä¾‹ã€‚ 2009-10-05 06:50:48.557 OneLiner[1202:207] CoreData: sql: SELECT COUNT(*) FROM ZMEMO t0 2009-10-05 06:50:48.558 OneLiner[1202:207
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Open Source: Restkit Library For Easier Communication With RESTful Web Services
http://www.sunsetlakesoftware.com/sites/default/files/Spring2010CourseNotes/core%20data.html
Google Drive
CoreData (for iphone) storing images
Using iPhone Core Data vs. A Database
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