Databases
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PO
 

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  1. PO
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    <p>First you have to take the values of selected row; This is in your TABLEVIEWCONTROLLER</p> <pre><code>- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath*)indexPath { if(listObject.count!=0){ //you will get the object from the list ObjectType *selectedObject=(ObjectType*)[listObject objectAtIndex:indexPath.row]; //you can call your view controller (in my example init with nib) yourDetailViewController = [[YourDetailViewController alloc] initWithNibName:@"YourDetailViewControllerNib" bundle:nil]; //you can set your selected object in order to use it on your detail view controller yourDetailViewController.objectSelected = selectedObject; [self.navigationController yourDetailViewController animated:YES]; } } </code></pre> <p>And this is in your DETAILVIEWCONTROLLER;</p> <pre><code>-(void)objectUpdate:(Object*)selectedObject withDBPath:(NSString *)dbPath{ NSError *errMsg; if (sqlite3_open([dbPath UTF8String], &amp;database) == SQLITE_OK) { const char *sql_stmt = [@"CREATE TABLE IF NOT EXISTS iosobjecttable (yourcolumns INTEGER PRIMARY KEY NOT NULL , youranothercolumn VARCHAR)" cStringUsingEncoding:NSUTF8StringEncoding]; if (sqlite3_exec(database, sql_stmt, NULL, NULL, (__bridge void*)errMsg) == SQLITE_OK) { // SQL statement execution succeeded } if(updateStmt == nil) { NSString *querySQL = [NSString stringWithFormat: @"update iosobject set youranothercolumn=%@ where p_event_id=%@", object.changedcomlumn,object.objectid]; const char *query_sql = [querySQL UTF8String]; if(sqlite3_prepare_v2(database, query_sql, -1, &amp;updateStmt, NULL) != SQLITE_OK){ NSAssert1(0, @"Error while creating update statement. '%s'", sqlite3_errmsg(database)); //NSLog(@"%@",errMsg); } } @try { if(SQLITE_DONE != sqlite3_step(updateStmt)){ NSAssert1(0, @"Error while updating data. '%s'", sqlite3_errmsg(database)); //NSLog(@"%@",errMsg); } else{ //NSLog(@"updatingupdatingedelementt %@",tEvent.eventid); } sqlite3_reset(updateStmt); } @catch (NSException* ex) { //NSLog(@"Error while updating data. '%s'", sqlite3_errmsg(database)); } } } </code></pre> <p>and how you call this function is like this;</p> <pre><code>AppDelegate *appDelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate]; NSString *dbPath=[appDelegate getDBPath]; [self objectUpdate:objectUpdate withDBPath:dbPath]; </code></pre> <p>And in app delegate you have to write getDBPath in app delegate;</p> <pre><code> - (NSString *) getDBPath { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES); NSString *documentsDir = [paths objectAtIndex:0]; return [documentsDir stringByAppendingPathComponent:@"yourdbname.sqlite"]; } </code></pre>
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    1. POChange value of selected field from SQlite3 using Xcode
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    1. This table or related slice is empty.
    1. USMihriban Minaz
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      1. VTUpMod
    1. COI have to admit it.. i got really lost .... i m a newb in Xcode and actually i got lost...could you please check out the update in the querstion
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      1. USElias Rahme
    2. CO@EliasRahme i looked your code. but what is the problem? now i think you can list your items, select one of them and go to detail page correctly? what do you need? you asked for update firstly?
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      1. USMihriban Minaz
    3. COThe thing is, when i click the button i need to update the value of a field called Fav in the database. And i got lost actually trying to follow your suggestion , in which i thank you very much for talking the time to respond, so can you please help combining your suggestion with my primary code..
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      1. USElias Rahme
 

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Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

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