MacRuby から CoreData

アプリに入れるデータは MacRuby で作っていたりします。Objective-C でも良いんだけど、コンパイルとか面倒だし、テキスト処理は Ruby だと楽チンだし♪

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#! /usr/local/bin/macruby # coding:utf-8 #   framework 'Foundation' framework 'CoreData'   DB_NAME = "Question" ENTITY_NAME = "Question"   class DB   def managedObjectModel     if (@managedObjectModel != nil)         return @managedObjectModel     end     modelURL = NSURL.URLWithString Dir.pwd+"/#{DB_NAME}.momd"     @managedObjectModel = NSManagedObjectModel.alloc.initWithContentsOfURL(modelURL)       return @managedObjectModel   end     def persistentStoreCoordinator     if (@persistentStoreCoordinator != nil)         return @persistentStoreCoordinator     end           storeURL = NSURL.fileURLWithPath Dir.pwd+"/#{DB_NAME}.sqlite"          error = Pointer.new(:object)     @persistentStoreCoordinator = NSPersistentStoreCoordinator.alloc.initWithManagedObjectModel(self.managedObjectModel)     if (!@persistentStoreCoordinator.addPersistentStoreWithType(NSSQLiteStoreType, configuration:nil, URL:storeURL, options:nil, error:error))         puts "Unresolved error #{error}, #{error.userInfo}"         abort()     end           return @persistentStoreCoordinator         end     def managedObjectContext     if (@managedObjectContext != nil)         return @managedObjectContext     end           coordinator = self.persistentStoreCoordinator     if (coordinator != nil)         @managedObjectContext = NSManagedObjectContext.alloc.init         @managedObjectContext.setPersistentStoreCoordinator(coordinator)     end     return @managedObjectContext   end         def saveContext     error = Pointer.new(:object)     managedObjectContext = self.managedObjectContext     if (managedObjectContext != nil)         if (managedObjectContext.hasChanges || !managedObjectContext.save(error))             puts "Unresolved error #{error}, #{error.userInfo}"             abort()         end     end   end       end   `/Developer/usr/bin/momc #{DB_NAME}.xcdatamodeld #{DB_NAME}.momd` if File.exist? "#{DB_NAME}.sqlite"   File.delete "#{DB_NAME}.sqlite" end   db = DB.new p model = db.managedObjectModel   var = {"YEAR" => 2010} request = model.fetchRequestFromTemplateWithName("QuestionsWithYear", substitutionVariables:var)   p request.predicate.predicateFormat   db.saveContext