How to call different tables in an "if and else" part of the same database in iPhone? - objective-c

Question

I have a database. It has two tables in it. I want to call one table in an if condition. How do I call the second table in the else part if the if conditions fail?
This is the code I used:
{
NSArray *Paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *DocumentsDirectory = [Paths objectAtIndex:0];
NSString *Path = [DocumentsDirectory stringByAppendingPathComponent:#"StoreList.sqlite"];
// Open the database from the users filessytem.
if (sqlite3_open([Path UTF8String], &database) == SQLITE_OK) {
// Setup the SQL Statement and compile it for faster access
//*********const char *sqlStatement = "select * from Store where Zipcode ='%#'",inputTxt ;
NSString *sqlStatement = [NSString stringWithFormat:#"select * from Store where Zipcode ='%#' or Address = '%#' or CityName = '%#'",inputTxt, inputTxt, inputTxt];
NSLog(#" Query in if :%#",sqlStatement);
sqlite3_stmt *compiledStatement;
if (sqlite3_prepare_v2(database, [sqlStatement UTF8String], -1, &compiledStatement, NULL) == SQLITE_OK) {
// Loop through the results and add them to the feeds array.
if(sqlite3_step(compiledStatement) == SQLITE_ROW) {
// Read the data from the result row
NSString *latValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)];
NSLog(#"Latitude:%#",latValue);
NSString *longValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 3)];
NSLog(#"Longitude:%#",longValue);
//currentLocationLbl.text=[NSString stringWithFormat:#" %# , %#" ,latValue,longValue];
// delegate.latitudeVal=latValue;
// delegate.longitudeVal=longValue;
txtChangeLocation.text = #"";
isFromChangeLoc=TRUE;
//self.tabBarController.selectedIndex=3;
}
else {
NSLog(#"ELSE PART");
// Open the database from the user's filessytem.
if (sqlite3_open([Path UTF8String], &database) == SQLITE_OK) {
// Setup the SQL Statement and compile it for faster access
//*********const char *sqlStatement = "select * from Store where Zipcode ='%#'",inputTxt ;
NSString *sqlStatement = [NSString stringWithFormat:#"select * from zipcodes where zip ='35004'"];
NSLog(#" Query in if :%#",sqlStatement);
sqlite3_stmt *compiledStatement;
if(sqlite3_prepare_v2(database, [sqlStatement UTF8String], -1, &compiledStatement, NULL) == SQLITE_OK) {
// Loop through the results and add them to the feeds array
if(sqlite3_step(compiledStatement) == SQLITE_ROW) {
// Read the data from the result row
NSString *latValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)];
NSLog(#"Latitude:%#",latValue);
NSString *longValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 3)];
NSLog(#"Longitude:%#",longValue);
//currentLocationLbl.text=[NSString stringWithFormat:#" %# , %#" ,latValue,longValue];
// delegate.latitudeVal=latValue;
// delegate.longitudeVal=longValue;
txtChangeLocation.text = #"";
isFromChangeLoc=TRUE;
}
}
}
}
sqlite3_finalize(compiledStatement);
sqlite3_close(database);
}
}
I'm getting the input from the text box. When I give the correct value, which is there in the database, it is working fine, the fetch of the data is correct. If I give the wrong data in the textbox it's not working fine - the else condition fails.
How can this issue be fixed?

Answer 1

When going on else you open the same database again, that's not needed (and might cause some problems as well, haven't tried it). Use a BOOL when running the first (select) statement and set it to YES or NO if it fails or not. After you finish with the first statement check the BOOL value and if ==NO run the second statement.
...
BOOL success = NO;
NSString *sqlStatement = [NSString stringWithFormat:#"select * from Store where Zipcode '%#' or Address = '%#' or CityName = '%#'",inputTxt, inputTxt, inputTxt];
NSLog(#" Query in if :%#",sqlStatement);
sqlite3_stmt *compiledStatement;
if(sqlite3_prepare_v2(database, [sqlStatement UTF8String], -1, &compiledStatement, NULL) == SQLITE_OK){
if(sqlite3_step(compiledStatement) == SQLITE_ROW) {
// Read the data from the result row
NSString *latValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)];
NSLog(#"Latitude:%#",latValue);
NSString *longValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 3)];
NSLog(#"Longitude:%#",longValue);
//currentLocationLbl.text=[NSString stringWithFormat:#" %# , %#" ,latValue,longValue];
// delegate.latitudeVal=latValue;
// delegate.longitudeVal=longValue;
txtChangeLocation.text = #"";
isFromChangeLoc=TRUE;
//self.tabBarController.selectedIndex=3;
success=YES;
}
}
sqlite3_finalize(compiledStatement);
if(success){
//do the else from your code
NSString *sqlStatement = [NSString stringWithFormat:#"select * from zipcodes where zip ='35004'"];
NSLog(#" Query in if :%#",sqlStatement);
if(sqlite3_prepare_v2(database, [sqlStatement UTF8String], -1, &compiledStatement, NULL) == SQLITE_OK){
// Loop through the results and add them to the feeds array
if(sqlite3_step(compiledStatement) == SQLITE_ROW) {
// Read the data from the result row
NSString *latValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 2)];
NSLog(#"Latitude:%#",latValue);
NSString *longValue = [NSString stringWithUTF8String:(char *)sqlite3_column_text(compiledStatement, 3)];
NSLog(#"Longitude:%#",longValue);
//currentLocationLbl.text=[NSString stringWithFormat:#" %# , %#" ,latValue,longValue];
// delegate.latitudeVal=latValue;
// delegate.longitudeVal=longValue;
txtChangeLocation.text = #"";
isFromChangeLoc=TRUE;
}
}
sqlite3_finalize(compiledStatement);
}
I haven't run it, so it might contain some bugs.