在我的应用程序中，您可以通过制表符分隔值文件导入数据。在解析＆＃34;位置＆＃34;之前，我没有任何挑战。有多个项目附加到他们身上。如果滚动到第二种方法的最底部，您可以看到我如何在Core Data内创建项目与包含它们的位置之间的关系。当我解析位置中的第31列时，会发生此问题。它不会将这些项目附加到该位置。所以我的问题是这个; NSArray中由CHCSVParser解析的列是否有限制？如果不是，会导致这个限制为31列？
我已经发布了下面遇到错误的两种方法。
+ (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;
}
}