我有一个 sqlite 数据库，它已加载到 tableview 中，现在当我单击一行以查看其详细信息时。我转到另一个视图控制器，其中显示了详细信息并且存在 AddToFav 按钮。当我单击它..并转到另一个视图控制器...我可以正确看到更改，我的数据库正在正确更新，但是如果我尝试添加另一个条目..我注意到我的数据库不再更新.. addToFav 按钮只更新一次数据库。有任何想法吗？这是我的 Addbut IBaction ：
- (IBAction)AddButClick:(UIButton *)sender {
[AddBut setImage:[UIImage imageNamed:@"apple-logo copy.png"] forState:UIControlStateSelected];
[AddBut setImage:[UIImage imageNamed:@"apple-logo copy.png"] forState:UIControlStateHighlighted];
Favo = [[NSMutableArray alloc] initWithCapacity:1000000];
@try {
// NSFileManager *fileMgr = [NSFileManager defaultManager];
// NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:@"dictionary.sqlite"];
//NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:@"authorsDb2.sqlite"];
// NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:@"FinalDb.sqlite"];
//NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:@"xxJuridique-FINAL-OK.sqlite"];
// [self createEditableCopyOfDatabaseIfNeeded];
// NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:@"data.sqlite"];
// [self.tableView reloadData];
sqlite3_stmt *compiled_statement1;
if(sqlite3_open([PathDB UTF8String], &db) == SQLITE_OK) {
// UIAlertView *DbO = [[UIAlertView alloc]
// initWithTitle:@"PATH" message:@"Database still open !" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
//
// [DbO show];
NSString *formatedSql = [NSString stringWithFormat:@"UPDATE Sheet1 SET Fav = 'YES' WHERE field3 = '%@'" , authorNAme2];
// UIAlertView *messageAlert = [[UIAlertView alloc]
// initWithTitle:@"Query" message:formatedSql delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
//
// [messageAlert show];
//
UIAlertView *PAth = [[UIAlertView alloc]
initWithTitle:@"PATH" message:PathDB delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[PAth show];
// NSLog(PathDB);
const char *sql = [formatedSql UTF8String];
NSLog(@" !!!!!!!! In the middle of it !!!!!!!!!!!!");
if (sqlite3_prepare_v2(db, sql, -1, &compiled_statement1, NULL) != SQLITE_OK) {
NSLog(@"!!!!!!!!!!!!!!!!!!!ERRRRROOOOOOORRRRRRRRR!!!!!!!!!!!!!!!!!!!!!!!!!");
//NSAssert1(0, @"Error: failed to prepare statement with message '%s'.", sqlite3_errmsg(database));
}
NSLog(@"This is the query %@",formatedSql);
}
// sqlite3_bind_text(compiled_statement1, 1, [authorNAme2 UTF8String], -1, SQLITE_TRANSIENT);
int success = sqlite3_step(compiled_statement1);
// sqlite3_reset(compiled_statement1);
if (success != SQLITE_ERROR) {
NSLog(@"Successfully inserted");
sqlite3_last_insert_rowid(db);
}
//
// BOOL success = [fileMgr fileExistsAtPath:dbPath];
//
// if(!success)
// {
// NSLog(@"Cannot locate database file '%@'.", dbPath);
// }
// if(!(sqlite3_open([dbPath UTF8String], &db) == SQLITE_OK))
// {
// NSLog(@"An error has occured: %@", sqlite3_errmsg(db));
//
// }
// const char *sql = "SELECT F_Keyword FROM wordss";
const char *sql = "SELECT * FROM Sheet1";
NSLog(@"Successfully selected from database");
sqlite3_stmt *sqlStatement;
if(sqlite3_prepare(db, sql, -1, &sqlStatement, NULL) != SQLITE_OK)
{
NSLog(@"Problem with prepare statement: %@", sqlite3_errmsg(db));
}else{
NSLog(@"Got in the else tag");
while (sqlite3_step(sqlStatement)==SQLITE_ROW /*&& PAss == NO*/) {
NSLog(@"Got in the while tag");
Author * author = [[Author alloc] init];
NSLog(@"Author initialized");
author.name = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement,10)];
NSLog(@"Initialization ok");
// NSLog(author.name);
if(/*author.name == @"NO" &&*/ HighLighted == NO){
//const char *sql2 = "INSERT INTO Sheet1 ";
[AddBut setImage:[UIImage imageNamed:@"apple-logo copy.png"] forState:UIControlStateNormal];
NSLog(@"We have not selected it as fav yet");
// [AddBut setSelected:NO]; //btn changes to normal state
NSLog(@"The button was NOt highlighted and now is");
HighLighted = YES;
break;
}
else
{
NSLog(@"We have selected it as fav");
[AddBut setImage:[UIImage imageNamed:@"apple-logo.png"] forState:UIControlStateNormal];
[AddBut setSelected:NO]; //btn changes to normal state
NSLog(@"The button was highlighted and now is NOt");
HighLighted = NO;
break;
// [self viewDidLoad];
// PAss = YES;
}
// [Favo release];
// NSLog(Favo);
// author.name = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement,2)];
// author.title = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement,2)];
// author.genre = [NSString stringWithUTF8String:(char *) sqlite3_column_text(sqlStatement, 4)];
// [theauthors addObject:author];
}
}
}
@catch (NSException *exception) {
NSLog(@"Problem with prepare statement: %@", sqlite3_errmsg(db));
}
@finally {
// sqlite3_finalize(sqlStatement);
// sqlite3_close(db);
UIAlertView *fin = [[UIAlertView alloc]
initWithTitle:@"Query" message:@"DOne with Click Button" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil];
[fin show];
return Favo;
}