iOS WHERE TO INIT a CLASS

[joak]

Hello

I have one generic class to work with Database(sqlite), this class has some methods to create tables, open database, insert records, delete records etc .... if I import this class to work with other(class B), where I have to init Database class to work with his methods in all methods of class B ?

 

[ianray]

What language are you programming in?

 

[joak]

Objetive C, Xcode

 

[ianray]

It is hard to help because you haven't told us what you have tried, nor shared any fragments of code.

Have you read this? https://developer.apple.com/library/ios/documentation/Cocoa/Conceptual/ProgrammingWithObjectiveC/Introduction/Introduction.html

 

[joak]

ClassB.h

@ property (strong,nonatomic) NSObject *basedatos;

ClassB.m

- (id) init
{
    self = [super init];
    if (self)
    {
        self.basedatos = [[JFBaseDatos alloc] init];
    }
    return self;
}

how can I call in another classB's metods the class basedatos?

[self.basedatos dropTables:self.arrayTableNames];

 

[ArtOfWarfare]

ClassB.h

@ property (strong,nonatomic) NSObject *basedatos;

ClassB.m

- (id) init
{
    self = [super init];
    if (self)
    {
        self.basedatos = [[JFBaseDatos alloc] init];
    }
    return self;
}

how can I call in another classB's metods the class basedatos?

[self.basedatos dropTables:self.arrayTableNames];

That all looks fine to me. What's not working? How should it work and what's it doing instead?

 

[dantastic]

The compiler will give out about that.
dropTables: is not a method belonging to NSObject.

try

@property (nonatomic, strong) JFBaseDatos *baseDatos;

instead

 

[joak]

Dantastic ... I asked how it's correct to instance an object because when I have used the methods of JFBaseDatos some works bad.

The class JFBaseDatos, has a method to create tables, the database file it's created and I can review the structure all tables and it's fine ... but, when I want to insert records, I can't because I have gotten a message that a "id_torneo" column dosen't exist ... but yes..... it's exists .. I can see it in the database file.

 

[joak]

I found the error, the syntax create table it's bad.