Question

I’m currently trying to get hold of my NSMutableArray‘s index depending on one of it’s object’s properties.

I have an xml-structure such as this:

<timeperiod>
    <Day>
        <Date>20120325</Date>
    </Day>
    <Day>
        <Date>20120326</Date>
    </Day>
</timeperiod>

Now, imagine that the xml-structure contains every day in a month.

Day and all of it’s properties are added to an NSMutableArray.

And what i want is: To get the array’s index depending on the date.

I’m imagining something like this in pseudo-code:

-(NSInteger)getIndexFromObjectProperty:(NSString *)property{

   // Givf index from array where date is for example 20120310

   //pseudo
   Return [myClassObject.ObjectArray indexFromProperty:property];


}

I found this: Sorting NSMutableArray By Object's Property

This sorts from properties, but how to get an index from a property 0_0

I also found this: Function to get index from an array of objects having certain value of provided property
Which would help alot if the syntax worked out of the box 🙁

Any tips and/or pointers will be highly appreciated.

Thanks in advance.

EDIT I’m currently trying the answers given. Will get back with an update.

EDIT2: Office is throwing me out since they’re locking the building down… i’ll get back to you tomorrow..

Answer 1

This really was not as hard as i thought it would be..

solved by doing the following…

-(NSInteger)returnIndexFromDateProperty:(NSString *)property{


    NSInteger iIndex;

    for (int i = 0; i < [myArray count]; i++){

        if([property isEqualToString:[[myArray objectAtIndex:i]dateProperty]]){

            iIndex = i;
        }
    }    


    return iIndex;

}

Thanks for all the other answers. They hepled alot during the process of thinking (not being bad).