How to get value of multidimensional array

Question

I have a problem when trying to retrieve values from an array. I want to get all the values from this array in order to display them in a IUTableView.

Should I use a double for function ?

{
1 =     {
    dishId = 1;
    dishName = "Tomato Salades";
    dishPrice = 13;
    dishTypeId = 1;
    dishTypeName = Starter;
};
2 =     {
    dishId = 2;
    dishName = "Leeks Salades";
    dishPrice = 12;
    dishTypeId = 1;
    dishTypeName = Starter;
};
3 =     {
    dishId = 3;
    dishName = Fries;
    dishPrice = 14;
    dishTypeId = 2;
    dishTypeName = "Main Course";
};
4 =     {
    dishId = 4;
    dishName = Beef;
    dishPrice = 15;
    dishTypeId = 2;
    dishTypeName = "Main Course";
};
7 =     {
    dishId = 7;
    dishName = "Cheese Cake";
    dishPrice = 8;
    dishTypeId = 3;
    dishTypeName = Dessert;
};
menuCountry = France;
menuDescription = "un menu pas comme les autres pour une region pas comme les autres";
menuId = 1;
menuName = "Autour de l\\Alsace";
menuState = 1;
}

This is my Python code which creates a Dictionary in a Array :

def getDishOfTheWeek():
menuArray = []
menuDic = Ddict(dict)
    for menu in Menus.select().where(state=True):

        menuDic['menuId']=menu.id
        menuDic['menuName']=menu.name
        menuDic['menuCountry']=menu.country.name
        menuDic['menuDescription']=menu.description
        menuDic['menuState']=menu.state
        for d in  DishMenuRels.select().where(menu = menu.id).join(Dishes).join(DishTypes).order_by((DishTypes,'name')):
            menuDic[str(d.dish.id)] = {}
            menuDic[str(d.dish.id)]['dishTypeName'] = d.dish.dishType.name
            menuDic[str(d.dish.id)]['dishTypeId'] = d.dish.dishType.id
            menuDic[str(d.dish.id)]['dishId'] = d.dish.id
            menuDic[str(d.dish.id)]['dishName'] = d.dish.name
            menuDic[str(d.dish.id)]['dishPrice'] = d.dish.price
menuArray.append(menuDic)
return json.dumps(menuArray)

This is my Objectiv-C code in order to get the DataJson and put it in an Array:

- (void)stream:(NSStream *)theStream handleEvent:(NSStreamEvent)streamEvent {

switch (streamEvent) {

    case NSStreamEventOpenCompleted:
        [[ConnectionSingleton getInstance] setConnectionMade:YES];
        NSLog(@"Stream opened");
        break;

    case NSStreamEventHasBytesAvailable:
        if (theStream == inputStream) {

            uint8_t buffer[1024];
            int len;

            while ([inputStream hasBytesAvailable]) {

                len = [inputStream read:buffer maxLength:sizeof(buffer)];

                if (len > 0) {

                    NSString *output = [[NSString alloc] initWithBytes:buffer length:len encoding:NSASCIIStringEncoding];

                    output = [output substringToIndex:[output length] - 2];

                    if (nil != output) {
                        NSError* error;     // Obligatoir pour le JSON

                        menu = [NSJSONSerialization JSONObjectWithData:[output dataUsingEncoding:NSUTF8StringEncoding] options:
                                  NSJSONReadingMutableContainers error:&error];   // Put Json in the Array


                        [[self tableView] reloadData];  // Reload Array to populate it
                    }
                }
            }
        }
        break;      

    case NSStreamEventErrorOccurred:
        NSLog(@"Can not connect to the host!");
        break;

    case NSStreamEventEndEncountered:
        break;

    default:
        NSLog(@"Unknown event");
}

}

Is it really an objecive-c array ? And what do you want to do with these values then ? — Titouan de Bailleul
– Titouan de Bailleul, Commented May 8, 2012 at 18:41
insert them in different label and cell row And yes it's and objectiv-c array — socrateisabot
– socrateisabot, Commented May 8, 2012 at 18:55

Titouan de Bailleul · Accepted Answer · 2012-05-08 19:53:13Z

1

I think this should do the trick

NSArray *firstArray = [NSArray arrayWithObjects:[NSArray arrayWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",nil], [NSArray arrayWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",nil],[NSArray arrayWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",nil],[NSArray arrayWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",nil],[NSArray arrayWithObjects:@"1",@"2",@"3",@"4",@"5",@"6",nil],@"String",@"String",@"String",@"String",@"String",nil];

NSInteger count_i = firstArray.count;
NSInteger count_j;
id val;
for (NSInteger i = 0; i < count_i; i++) {
    if ([[firstArray objectAtIndex:i] isKindOfClass:[NSArray class]]) {
        count_j = [[firstArray objectAtIndex:i] count];
        for (NSUInteger j = 0; j < count_j; j++) {
            val = [[firstArray objectAtIndex:i] objectAtIndex:j]; 
            NSLog(@"%@",val);
        }
    }else{
        val = [firstArray objectAtIndex:i];
        NSLog(@"%@",val);
    }
}

But your values are of different types, so you have to deal with them in different ways depending of the value of j.

edited May 8, 2012 at 19:53

answered May 8, 2012 at 19:04

Titouan de Bailleul

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6 Comments

socrateisabot Over a year ago

How can I get the second array ?

socrateisabot Over a year ago

it's doesnt work if i keep the if statement. If I remove it, i got and error in the second for loops : Signal SIGABRT

Titouan de Bailleul Over a year ago

The last answer is normal because at the end of your array, objects are not array anymore so you can't call objectAtIndex on these object. I just tried my code and it works fine. I edited my answer with an example array. You can try it.

socrateisabot Over a year ago

Yes thanks for update, your code's working well, but not with mine ... The function enter in else loop and that display the array I've copy/paste in my question

Titouan de Bailleul Over a year ago

Ok, maybe it would be good to add the code where you set up your Array, because yours look more like a NSDictionnary with key/value.

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