Passing data from sqlitedatabase to a Detailview - ios

Question

I'm creating an iOS app which is a directory system, where on the first page I load data such as a list of some states in a tableview (from a sqlite database). When clicking on a state only the districts under that particular state have to be displayed in the detailview's tableview. My problem is that when clicking on each district the phonenumber of that district must be shown in the next view controller. Can somebody please help?
This is the firstview.
#implementation firstview
#synthesize ddetails=_ddetails;
#synthesize at,arraydata,show,table;
static firstview *_database;
+ (firstview*)database {
if (_database == nil) {
_database = [[firstview alloc] init];
}
return _database;}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [theauthors count];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 30;}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
menu *me = [self.theauthors objectAtIndex:indexPath.row];
cell.textLabel.text=me.state;
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
NSString *cellText = selectedCell.textLabel.text;
[_button setTitle:cellText forState:UIControlStateNormal];
menu *infos=[theauthors objectAtIndex:indexPath.row];
self.ddetails = [self.storyboard instantiateViewControllerWithIdentifier:#"detailViewController"] ;
_ddetails.uniqueId=infos.id;
// NSLog(#"%#",infos.state);
// NSLog(#"%d",infos.id);
[self.navigationController pushViewController:_ddetails animated:NO];
}
-(NSMutableArray *) authorList{
theauthors = [[NSMutableArray alloc]init] ;
show=[[NSMutableArray alloc]init];
#try {
NSFileManager *fileMgr = [NSFileManager defaultManager];
NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:#"menu.sqlite"];
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: %s", sqlite3_errmsg(db));
}
NSString *query =[NSString stringWithFormat:#"SELECT id,category FROM category "];
sqlite3_stmt *selectstmt;
if(sqlite3_prepare_v2(db, [query UTF8String], -1, &selectstmt, NULL) != SQLITE_OK)
{
NSLog(#"Problem with prepare statement: %s", sqlite3_errmsg(db));
}else{
while (sqlite3_step(selectstmt)==SQLITE_ROW) {
menu * men = [[menu alloc] init];
men.id= sqlite3_column_int(selectstmt,0);
men.state=[NSString stringWithUTF8String:(char *) sqlite3_column_text(selectstmt,1)];
[theauthors addObject:men];
// NSLog(#"%#",men.category);
// NSLog(#"%d",men.id);
}
}
}
#catch (NSException *exception) {
NSLog(#"Problem with prepare statement: %s", sqlite3_errmsg(db));
}
#finally {
sqlite3_close(db);
return theauthors;
}
}
- (detailsnews *)Detailsnews:(int)uniqueId{
NSLog(#"%d",uniqueId);
detailsnews *get=nil;
_the=[[NSMutableArray alloc]init];
_gets=[[NSMutableArray alloc]init];
#try {
NSFileManager *fileMgr = [NSFileManager defaultManager];
NSString *dbPath = [[[NSBundle mainBundle] resourcePath ]stringByAppendingPathComponent:#"menu.sqlite"];
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: %s", sqlite3_errmsg(db));
}
NSString *sqls =[NSString stringWithFormat:#"SELECT * FROM menulist where category=%d",uniqueId];
// NSLog(#"%d",uniqueId);
sqlite3_stmt *selectstmt6;
if(sqlite3_prepare(db, [sqls UTF8String], -1, &selectstmt6, NULL) != SQLITE_OK)
{
NSLog(#"Problem with prepare statement: %s", sqlite3_errmsg(db));
}else{
while (sqlite3_step(selectstmt6)==SQLITE_ROW) {
// NSLog(#"%d",uniqueid);
int totalValue = 0;
int uniqueId = sqlite3_column_int(selectstmt6,0);
// NSLog(#"%d",uniqueid);
[_gets addObject:[NSNumber numberWithInt:uniqueId]];
for(NSNumber *number in _gets) // Use fast enumeration to iterate through the array
{
totalValue = [number intValue];
// NSLog(#"%d",totalValue);
}
char *nameChars = (char *) sqlite3_column_text(selectstmt6, 2);
NSString *name = [[NSString alloc] initWithUTF8String:nameChars];
char *rec = (char *) sqlite3_column_text(selectstmt6, 1);
NSString *rece = [[NSString alloc] initWithUTF8String:rec];
// NSLog(#"%#",rece);
[_the addObject:rece];
NSMutableString * result = [[NSMutableString alloc] init];
for (NSObject * obj in _the)
{
[result appendString:[obj description]];
result = [_the componentsJoinedByString: #"\r"];
// NSLog(#"%#",result);
}
//[_the addObject:[NSNumber numberWithInt:uniqueid]];
// int totalValue = 0;
// for(NSNumber *number in _the) // Use fast enumeration to iterate through the array
// {
// totalValue = [number intValue];
// NSLog(#"%d",totalValue);
// }
//
// NSMutableString * result = [[NSMutableString alloc] init];
// int totalValue = 0;
//for (NSObject * obj in _the)
// {
// [result appendString:[obj description]];
// result = [_the componentsJoinedByString: #"\r"];
// NSLog(#"%#",result);
// }
//NSArray *arr=[result componentsSeparatedByString:#"\r"];
// NSMutableString * vgh = [[NSMutableString alloc] init];
// for (NSObject * obj in arr)
// {
//[vgh appendString:[obj description]];
// vgh = [arr componentsJoinedByString: #"\r"];
// }
get = [[detailsnews alloc] initWithUniqueId:totalValue district:result phonenumber:name ];
//NSLog(#"%#",_the);
}
}
}
#catch (NSException *exception) {
NSLog(#"Problem with prepare statement: %s", sqlite3_errmsg(db));
}
#finally {
sqlite3_close(db);
return get;
}
}
detailview controller
- (void)viewDidLoad
{
[super viewDidLoad];
detailsnews *details = [[firstview database]
Detailsnews:_uniqueId];
if (details != nil) {
NSArray *arrComponents = [details.district componentsSeparatedByString:#"\r"];
arr = [[NSMutableArray alloc] init];
for(int i = 0; i < [arrComponents count] ;i++)
{
NSString *str = [arrComponents objectAtIndex:i];
[arr addObject:str];
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return [arr count];
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
return 30;}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
detailsnews *details = [[firstview database]
Detailsnews:_uniqueId];
cell.textLabel.text=[arr objectAtIndex:indexPath.row];
return cell;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
UITableViewCell *selectedCell = [tableView cellForRowAtIndexPath:indexPath];
NSString *cellText = selectedCell.textLabel.text;
[button2 setTitle:cellText forState:UIControlStateNormal];
detailsnews *details = [[firstview database]
Detailsnews:_uniqueId];
//NSLog(#"%d",details.uniqueId);
// NSLog(#"%#",details.rece);
// detailsnews *infos=[arr objectAtIndex:indexPath.row];
self.ddetails = [self.storyboard instantiateViewControllerWithIdentifier:#"phonelistViewController"] ;
_ddetails.uniqueId=details.uniqueId;
// NSLog(#"%d",details.uniqueId);
[self.navigationController pushViewController:_ddetails animated:NO];
}

Answer 1

You need to Pass the data including the phoneNumbers from first stateViewController to District and then from District to DetailsPage…I would suggest pass an NSdictionary which Includes the data from one view to another such as..In second ViewController declare a global Dictionary as mainDictionary..
and in didSelectRowAtIndexPath just pass the data as
self.ddetails = [self.storyboard instantiateViewControllerWithIdentifier:#"phonelistViewController"] ;
_ddetails.mainDict=AllThe Details;
Do the same thing with PhoneNumbers also