Archive logEntry objects with NSCoding

Classes/iAbetesViewController.h

@@ -8,9 +8,24 @@
 
 #import <UIKit/UIKit.h>
 
-@interface iAbetesViewController : UIViewController {
-
+@interface iAbetesViewController : UIViewController <UITextFieldDelegate>
+{
+	IBOutlet UILabel *currentTime;
+	IBOutlet UITextField *bloodSugar;
+	IBOutlet UITextField *insulin;
+	IBOutlet UITextField *exercizeDuration;
+	IBOutlet UISlider *exercizeIntensity;
+
+	NSMutableSet *logEntries;	
 }
 
+@property (nonatomic, retain) IBOutlet UILabel *currentTime;
+@property (nonatomic, retain) IBOutlet UITextField *bloodSugar;
+@property (nonatomic, retain) IBOutlet UITextField *insulin;
+@property (nonatomic, retain) IBOutlet UITextField *exercizeDuration;
+@property (nonatomic, retain) IBOutlet UISlider *exercizeIntensity;
+
+-(IBAction)saveLogEntry;
+
 @end
 

Classes/iAbetesViewController.m

@@ -7,43 +7,102 @@
 //
 
 #import "iAbetesViewController.h"
+#import "NSDate+TimeString.h"
+#import "LogEntry.h"
+
+@interface iAbetesViewController()
+
+-(NSString *)documentsDirectory;
+-(void)loadDataFromDisk;
+-(void)saveDataToDisk;
+
+@end
 
 @implementation iAbetesViewController
 
+@synthesize currentTime, bloodSugar, exercizeDuration, exercizeIntensity, insulin;
+
+-(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
+{
+	if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil])
+	{
+		logEntries = [[NSMutableSet alloc] init];
+	}
+	return self;
+}
 
+-(void)awakeFromNib
+{
+	[self loadDataFromDisk];
+}
 
-/*
-// The designated initializer. Override to perform setup that is required before the view is loaded.
-- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
-    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
-        // Custom initialization
-    }
-    return self;
+-(void)viewWillAppear:(BOOL)animated
+{
+	[super viewWillAppear:animated];
+	NSLog(@"current: %@", [[NSDate date] timeString]);
+	[currentTime setText:[[NSDate date] timeString]];
 }
-*/
 
-/*
-// Implement loadView to create a view hierarchy programmatically, without using a nib.
-- (void)loadView {
+
+-(IBAction)saveLogEntry
+{
+	LogEntry *entry = [[[LogEntry alloc] init] autorelease];
+	if ([[bloodSugar text] doubleValue]) 
+		[entry setBloodSugar:[[bloodSugar text] doubleValue]];
+
+	if ([[insulin text] doubleValue]) 
+		[entry setInsulinBolus:[[insulin text] doubleValue]];
+
+	if ([[exercizeDuration text] intValue])
+		[entry setExercize:[exercizeIntensity value] duration:[[exercizeDuration text] intValue]];
+
+	[entry setTime:[NSDate date]];	
+	NSLog(@"saving %@", [entry description]);
+	[logEntries addObject:entry];
+	[self saveDataToDisk];
 }
-*/
 
+-(void)saveDataToDisk
+{
+	NSString * path = [self documentsDirectory];	
+	if (!path) return;
+
+	NSLog(@"saving %@ to path: %@", [logEntries description], path);
+	NSMutableDictionary *rootObject = [NSMutableDictionary dictionary];    
+	[rootObject setValue:logEntries forKey:@"logEntries"];
+	[NSKeyedArchiver archiveRootObject:rootObject toFile:path];
+
+	[logEntries removeAllObjects];
+}
 
-/*
-// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
-- (void)viewDidLoad {
-    [super viewDidLoad];
+-(void)loadDataFromDisk
+{
+	NSString *path = [self documentsDirectory];
+	if (!path) return;
+
+	NSDictionary *rootObject = [NSKeyedUnarchiver unarchiveObjectWithFile:path];    
+	if (logEntries)
+		[logEntries release];
+
+	logEntries = [[rootObject valueForKey:@"logEntries"] retain];
+	if (!logEntries)
+		logEntries = [[NSMutableSet alloc] init];
+
+	NSLog(@"logs loaded: %@", [logEntries description]);
 }
-*/
 
+- (NSString *)documentsDirectory {
+
+	NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
+	NSString *basePath = ([paths count] > 0) ? [paths objectAtIndex:0] : nil;
+	return basePath;
+}
 
-/*
-// Override to allow orientations other than the default portrait orientation.
-- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
-    // Return YES for supported orientations
-    return (interfaceOrientation == UIInterfaceOrientationPortrait);
+-(BOOL)textFieldShouldReturn:(UITextField *)textField
+{
+	[textField resignFirstResponder];
+	return YES;
 }
-*/
 
 - (void)didReceiveMemoryWarning {
 	// Releases the view if it doesn't have a superview.
@@ -57,6 +116,10 @@ - (void)viewDidUnload {
 	// e.g. self.myOutlet = nil;
 }
 
+- (void) applicationWillTerminate: (NSNotification *)note
+{
+	[self saveDataToDisk];
+}
 
 - (void)dealloc {
     [super dealloc];

Classes/model/LogEntry.h

@@ -8,7 +8,7 @@
 
 #import <Foundation/Foundation.h>
 
-@interface LogEntry : NSObject
+@interface LogEntry : NSObject <NSCoding>
 {
 	NSMutableDictionary *information;	
 }
@@ -19,7 +19,7 @@
 -(void)setInsulinBolus:(double)units;
 -(void)setInsulinBolus:(double)units overTimeInterval:(NSTimeInterval)bolusDuration;
 
--(void)addFoodItem:(Food *)item;
+//-(void)addFoodItem:(Food *)item;
 -(void)setExercize:(double)intensity duration:(NSTimeInterval)duration;
 
 

Classes/model/LogEntry.m

@@ -27,6 +27,21 @@ -(id)init
 	}
 	return self;
 }
+-(id)initWithCoder:(NSCoder *)coder
+{
+	if (self = [super init])
+	{
+		information = [[coder decodeObjectForKey:@"information"] retain];
+		if (!information) 
+			information = [[NSMutableDictionary alloc] init];
+	}
+	return self;
+}
+
+-(void)encodeWithCoder:(NSCoder *)coder
+{
+	[coder encodeObject:information forKey:@"information"];
+}
 
 -(void)setBloodSugar:(NSUInteger)bloodSugar
 {
@@ -35,7 +50,7 @@ -(void)setBloodSugar:(NSUInteger)bloodSugar
 
 -(void)setTime:(NSDate *)time
 {
-	[information setObject:timeOfEntry forKey:kTime];
+	[information setObject:time forKey:kTime];
 }
 
 -(void)setInsulinBolus:(double)units
@@ -49,11 +64,6 @@ -(void)setInsulinBolus:(double)units overTimeInterval:(NSTimeInterval)bolusDurat
 	[information setObject:[NSNumber numberWithDouble:bolusDuration] forKey:kBolusDuration];
 }
 
--(void)addFoodItem:(Food *)item
-{
-	// no food support yet
-}
-
 -(void)setExercize:(double)intensity duration:(NSTimeInterval)duration
 {
 	// improve this  - add type? 
@@ -66,9 +76,13 @@ -(void)setWaterConsumption:(NSUInteger)fluidOunces
 	[information setObject:[NSNumber numberWithUnsignedInt:fluidOunces] forKey:kWaterConsumed];
 }
 
+-(NSString *)description
+{
+	return [information description];
+}
+
 -(void)dealloc
 {
-	[timeOfEntry release];
 	[information release];
 	[super dealloc];	
 }

Classes/model/NSDate+TimeString.h

@@ -0,0 +1,16 @@
+//
+//  NSDate+CurrentTimeString.h
+//  iAbetes
+//
+//  Created by chris nielubowicz on 2/19/11.
+//  Copyright 2011 __MyCompanyName__. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+
+@interface NSDate(TimeString)
+
+-(NSString *)timeString;
+
+@end

Classes/model/NSDate+TimeString.m

@@ -0,0 +1,22 @@
+//
+//  NSDate+CurrentTimeString.m
+//  iAbetes
+//
+//  Created by chris nielubowicz on 2/19/11.
+//  Copyright 2011 __MyCompanyName__. All rights reserved.
+//
+
+#import "NSDate+TimeString.h"
+
+
+@implementation NSDate(TimeString)
+
+-(NSString *)timeString
+{
+	NSDateFormatter *dateFormatter = [[[NSDateFormatter alloc] init] autorelease];
+	// display in 12HR/24HR (i.e. 11:25PM or 23:25) format according to User Settings
+	[dateFormatter setTimeStyle:NSDateFormatterShortStyle];
+	return [dateFormatter stringFromDate:self];
+}	
+
+@end