Does CHCSVParser have a column parsing limit? - ios

Question

In my application you can import data through a tab separated values file. I don't have any challenge until I parse "locations" that have multiple items attached to them. If you scroll to the very bottom of the second method you can see how I create a relationship between items and the locations that contain them inside Core Data. The problem occurs when I parse past column 31 in a location. It doesn't attach those items to the location. So my question is this; is there a limit to columns in the NSArray that is parsed by CHCSVParser? If not, what would cause this limiting to 31 columns?
I've posted the two methods that I encounter the bug with below.
+ (void) importDatabaseTSVURL:(NSURL*)url {
// First check if there is already a database. If so, stop import.
if ([XSELLocation locations].count > 0) return;
if ([XSELItem items].count > 0) return;
if ([XSELVendor vendors].count > 0) return;
NSError *error;
NSArray *array = [NSArray arrayWithContentsOfDelimitedURL:url options:CHCSVParserOptionsSanitizesFields delimiter:'\t' error:&error];
if ([[[array firstObject] firstObject] isEqualToString:#"XSELINVENTORYTSV"]) {
for (NSArray *row in array) {
[XSELSettings parseImportDataRow:row];
}
}
}
+ (void) parseImportDataRow:(NSArray*)array {
// Create logic to seperate data entered next
static NSString *operation = #"none";
if ([array.firstObject isEqualToString:#"ITEMLIST"]) {
operation = #"items";
return;
}
else if ([array.firstObject isEqualToString:#"LOCATIONLIST"]) {
operation = #"locations";
return;
}
else if ([array.firstObject isEqualToString:#"VENDORLIST"]) {
operation = #"vendors";
return;
}
else if ([array.firstObject isEqualToString:#"ENDLIST"]) { // Create database, relate objects, and clean up the data
operation = #"none";
return;
}
// Parse rows to the correct array.
if ([operation isEqualToString:#"vendors"]) {
NSLog(#"adding vendor");
XSELVendor *vendor = [XSELVendor addVendor];
vendor.vendorID = [NSNumber numberWithInteger:[[array objectAtIndex:0] integerValue]];
[XSELSettings nextVendorID];
vendor.name = [array objectAtIndex:1];
vendor.contactID = [array objectAtIndex:2];
}
else if ([operation isEqualToString:#"items"]) {
NSLog(#"adding item");
XSELItem *item = [XSELItem addItem];
item.itemID = [NSNumber numberWithDouble:[[array objectAtIndex:0] integerValue]];
[XSELSettings nextItemID];
item.name = [array objectAtIndex:1];
item.smallPackageName = [array objectAtIndex:2];
item.bigPackageName = [array objectAtIndex:3];
item.smallPerBig = [NSNumber numberWithDouble:[[array objectAtIndex:4] integerValue]];
item.buildTo = [NSNumber numberWithDouble:[[array objectAtIndex:5] integerValue]];
item.price = [NSNumber numberWithDouble:[[array objectAtIndex:6] integerValue]];
// Relate preferred vendor to item
for (XSELVendor *vendor in [XSELVendor vendors]) {
if ([vendor.vendorID.stringValue isEqualToString:[array objectAtIndex:7]]) {
item.preferredVendor = vendor;
break;
}
}
}
else if ([operation isEqualToString:#"locations"]) {
NSLog(#"adding location");
XSELLocation *location = [XSELLocation addLocation:[array objectAtIndex:1]];
location.locationID = [NSNumber numberWithInteger:[[array objectAtIndex:0] integerValue]];
[XSELSettings nextLocationID];
location.position = [NSNumber numberWithInteger:[[array objectAtIndex:2] integerValue]];
// Relate location with items
unsigned long itemsRelatedCount = array.count - 3;
NSLog(#"\n\nitemsRelated: %lu\n\n", itemsRelatedCount);
NSMutableOrderedSet *items = [NSMutableOrderedSet orderedSet];
for (int i = 0; i < itemsRelatedCount; i++) {
NSString *itemID = [array objectAtIndex:i];
for (XSELItem *item in [XSELItem items]) {
if ([item.itemID.stringValue isEqualToString:itemID]) {
[items addObject:item];
break;
}
}
}
location.items = items;
}
}