Question

i need some help in getting the day value of last 7 days from SQLite.

i currently able to get day value from the SQLite if there is a records.

wat i need is to show the last 7 days if the guy did something.

example, if the guys only drink a beer today, it will show

drink - thur
no - wed
no - tue
no - mon
no - sun
no - sat
no - sat

example if the guys did not drink anything, it will show

no - thur
no - wed
no - tue
no - mon
no - sun
no - sat
no - sat

example if the guys drink anything during the last 7 days, it will show

no - thur
drink - wed
no - tue
no - mon
drink - sun
no - sat
no - sat

this is the SQL code

+ (void) getInitialDataToDisplay:(NSString *)dbPath {

    DrinkTabsAndNavAppDelegate *appDelegate = (DrinkTabsAndNavAppDelegate *)[[UIApplication sharedApplication] delegate];

    if (sqlite3_open([dbPath UTF8String], &database) == SQLITE_OK) {

        const char *sql = "SELECT DATE(datetime) FROM consumed GROUP BY DATE(datetime) ORDER BY datetime DESC";
        sqlite3_stmt *selectstmt;
        if(sqlite3_prepare_v2(database, sql, -1, &selectstmt, NULL) == SQLITE_OK) {

            while(sqlite3_step(selectstmt) == SQLITE_ROW) {
                NSString *dateDrunk = [NSString stringWithUTF8String:(char *)sqlite3_column_text(selectstmt, 0)];
                NSDate *theDate = [NSDate dateFromString:dateDrunk withFormat:@"yyyy-MM-dd"];
                DayOfDrinks *drinkDayObj = [[DayOfDrinks alloc] initWithDateConsumed:theDate];
                [drinkDayObj hydrateDetailViewData];
                //NSLog([NSDate stringFromDate:drinkDayObj.dateConsumed withFormat:@"yyyy-MM-dd"]);
                [appDelegate.drinksOnDayArray addObject:drinkDayObj];
                [drinkDayObj release];
            }
        }
    }
    else
        sqlite3_close(database); //Even though the open call failed, close the database connection to release all the memory.
}

DrinkHistoryTableViewController.m

if (drunked<7) {
    for (int i=drunked; i<7; i++) {


        NSString * dayString= [NSString stringWithFormat:@"Nil"];/

        [dayArray addObject:dayString];

        }
    }

    for(int i=drunked; i>0; i--) 
    {
        DayOfDrinks *drinksOnDay = [appDelegate.drinksOnDayArray objectAtIndex:i-1];

        NSString * dayString= [NSDate stringForDisplayFromDateForChart:drinksOnDay.dateConsumed];

        [dayArray addObject:dayString];//X label for graph the day of drink.

        drinksOnDay.isDetailViewHydrated = NO;

        [drinksOnDay hydrateDetailViewData];

        NSNumber *sdNumber =  drinksOnDay.standardDrinks; // pass value over to Standard Drink Numbers

        //[sdArray addObject: sdNumber]; 

        float floatNum = [sdNumber floatValue]; // convert sdNumber to foat

        [sdArray addObject:[NSNumber numberWithFloat:floatNum]];//add float Value to sdArray
}

can anybody help to answer my question thanks a lot.

Des

Answer 1

Update your query with this and try out :

"SELECT DATE(datetime) FROM consumed GROUP BY DATE(datetime) ORDER BY datetime DESC Limit 7"

You will get last 7 days information.