How to parse xml file and to create objects to add in array for tableview in ios

Question

I muste parse an XML file that contains some courses. Foreach course I must create an object and at the end to the tag I must add in array, so I can create tableview by array of objects. But I dont't be able to determine the end of course to add to the array. How to be able to do?

XML file is:

<?xml version="1.0" encoding="UTF-8"?>
<courses>
    <course>
        <id>1</id>
        <title>Introduzione al Java</title>
        <description>Corso base java, definizione di classe, oggetti ecc</description>
        <creation_date>2014-01-19 22:52:12</creation_date>
        <teachers>
            <teacher>Paolo</teacher>
            <teacher>Fabio</teacher>
        </teachers>
    </course>
    <course>
        <id>2</id>
        <title>Concetti Avanzati Java</title>
        <description>Corso avanzato java, prove pratiche su sistemi complessi</description>
        <creation_date>2014-02-22 20:52:12</creation_date>
        <teachers>
            <teacher>Giorgio Magherini</teacher>
        </teachers>
    </course>
    <course>
        <id>3</id>
        <title>Concetti Avanzati PHP</title>
        <description>Corso PHP avanzato, prove di verifica su siti online</description>
        <creation_date>2013-01-19 22:52:12</creation_date>
        <teachers>
            <teacher>Giorgio</teacher>
        </teachers>
    </course>
</courses>

I use NSXMLParserDelegate and the methods used are:

-(void)parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName
 namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qualifiedName
   attributes:(NSDictionary *)attributeDict {

    if ([elementName isEqualToString:@"courses"]) {
        arrayCorsiDisponibili = [[NSMutableArray alloc]init];// I allocate and init arrayCourseAvaiable
         self.stringaAppoggio = @"courses";
    }
    else if ([elementName isEqualToString:@"course"]){

        CourseAvailable *corsoDisponibile = [[CourseAvailable alloc]init]; //I allocate and init object
        self.courseAvailableAppoggio = corsoDisponibile;
        self.stringaAppoggio = @"course";
    }
    else if ([elementName isEqualToString:@"id"]){

    }
    else if([elementName isEqualToString:@"title"]){

    }
    else if([elementName isEqualToString:@"description"]) {

        self.stringaAppoggio = @"description";
    }
    else if([elementName isEqualToString:@"creation_date"]) {

        self.stringaAppoggio = @"creation_date";
    }
    else if([elementName isEqualToString:@"teacher"]) {
         self.stringaAppoggio = @"teacher";
    }
}

And

- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)string{
    if ([self.stringaAppoggio isEqualToString:@"\n"])
    {
        return;
    }
    if ([self.stringaAppoggio isEqualToString:@""])
    {
        return;
    }
    else if ([self.stringaAppoggio isEqualToString:@"courses"])
    {
        return;
    }
    else if ([self.stringaAppoggio isEqualToString:@"course"])
    {
        return;
    }
    else if ([self.stringaAppoggio isEqualToString:@"id"])
    {
        self.courseAvailableAppoggio.idCorso = (NSNumber *)string;
        return;
    }
    else if([self.stringaAppoggio isEqualToString:@"title"])
    {
        self.courseAvailableAppoggio.titolo = string;
        return;
    }
    else if([self.stringaAppoggio isEqualToString:@"description"])
    {
        self.courseAvailableAppoggio.descrizione = string;
        return;
    }
    else if([self.stringaAppoggio isEqualToString:@"creation_date"])
    {
        self.courseAvailableAppoggio.dataCreazione = string;
        return;
    }
    else if([self.stringaAppoggio isEqualToString:@"teacher"])
    {
        [self.courseAvailableAppoggio.insegnante addObject:string];
        return;
    }
    [arrayCorsiDisponibili addObject:self.courseAvailableAppoggio];
}

How to be able to determine the end to add object in array? Thanks

shtefane · Accepted Answer · 2014-03-06 16:27:46Z

1

I used this lib. with enumerate in block https://github.com/ZaBlanc/RaptureXML

answered Mar 6, 2014 at 16:27

shtefane

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Comments

ksh · Accepted Answer · 2014-03-06 15:42:22Z

0

Just check for the tags you're interested in in

– parser:didEndElement:namespaceURI:qualifiedName:

method.

answered Mar 6, 2014 at 15:42

ksh

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Comments

Akhtar · Accepted Answer · 2014-03-06 16:53:05Z

0

Follow the following links which have detail implementation of XML parsing. link1 and link2.

answered Mar 6, 2014 at 16:53

Akhtar

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