NSInvalidArgumentException이 - 알 수없는 선택 예를

Question

나는 SearchDisplayController

- (void)handleSearchForTerm:(NSString *)searchTerm{ 

[self.searchResults removeAllObjects]; // First clear the filtered array. 

FMDatabase *db = [FMDatabase databaseWithPath:[Utility getDatabasePath]]; 


[db open]; 


FMResultSet *results = [db executeQuery: [NSString stringWithFormat:@"SELECT * FROM periods where (searchstartyear <= %@) AND (searchendyear >= %@)", searchTerm, searchTerm]]; 

    NSMutableArray *array = [[NSMutableArray alloc] init ]; 
    [array removeAllObjects]; 
    while ([results next]) { 
     Periods *searchPeriod = [[Periods alloc] init]; 
     searchPeriod.periodname = [results stringForColumn:@"PeriodName"]; 
     searchPeriod.startyear = [results stringForColumn:@"StartYear"]; 
     searchPeriod.endyear = [results stringForColumn:@"EndYear"]; 
     searchPeriod.thumb = [results stringForColumn:@"Thumb"]; 
     searchPeriod.childid = [results stringForColumn:@"ChildID"]; 
     [array addObject:searchPeriod];   
    } 
    [self.searchResults addObject:array]; 


[db close];}  

기간을 사용하여 검색을 수행하는 객체 나는 NSInvalidArgumentException을 얻을

#import <UIKit/UIKit.h> 

@interface Periods : NSObject 

@property (nonatomic,strong) NSString *periodname; 
@property (nonatomic,strong) NSString *startyear; 
@property (nonatomic,strong) NSString *endyear; 
@property (nonatomic,strong) NSString *thumb; 
@property (nonatomic,strong) NSString *childid; 


@end 

을 다음과 같은 기능을한다 사용하고

로 전송 - 알 수없는 선택 다음 코드가 실행될 때 인스턴스로 전송됩니다.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"PeriodsCell"; 

    UITableViewCell *cell = [self.mainTableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; 
    } 

    // Configure the cell... 

    if (tableView != [[self searchDisplayController] searchResultsTableView]) 
    { 

     NSMutableArray *array = [periodsdataarray objectAtIndex:indexPath.section]; 
     NSMutableDictionary *dictionary = [array objectAtIndex:indexPath.row]; 




     UILabel *childIDLabel = (UILabel *)[cell viewWithTag:999]; 
     childIDLabel.text = [dictionary valueForKey:@"ChildID"]; 
     UILabel *titleLabel = (UILabel *)[cell viewWithTag:100]; 
     titleLabel.text = [dictionary valueForKey:@"PeriodName"]; 


     UILabel *previewLabel = (UILabel *)[cell viewWithTag:101]; 
     previewLabel.text = [NSString stringWithFormat:@"%@ - %@",[dictionary valueForKey:@"StartYear"],[dictionary valueForKey:@"EndYear"]]; 
     UIImageView *imageview = (UIImageView *)[cell viewWithTag:102]; 
     [imageview setImage:[UIImage imageNamed:[dictionary valueForKey:@"Thumb"]]]; 
    } 
    else 
    { 
     Periods *periodcell = [self.searchResults objectAtIndex:indexPath.row]; 

     cell.tag = 666; 
     UILabel *childIDLabel = (UILabel *)[cell viewWithTag:999]; 
     childIDLabel.text = periodcell.childid; 
     UILabel *titleLabel = (UILabel *)[cell viewWithTag:100]; 
     titleLabel.text = periodcell.periodname; 


     UILabel *previewLabel = (UILabel *)[cell viewWithTag:101]; 
     previewLabel.text = [NSString stringWithFormat:@"%@ - %@",periodcell.startyear,periodcell.endyear]; 
     UIImageView *imageview = (UIImageView *)[cell viewWithTag:102]; 
     [imageview setImage:[UIImage imageNamed:periodcell.thumb]]; 


    } 

    return cell; 
} 

,

... 그리고 더 구체적으로이 행이 실행될 때 : 내가 잘못 뭐하는 거지

childIDLabel.text = periodcell.childid; 

?

Answer 1

내가 만든 오류는 handleSearchForTerm 함수에서 발생했습니다.

NSMutableArray * 배열을 사용하여 내 기간 개체의 값을 보유한 다음 searchResults 배열에 기간을 보유 할 것으로 예상하여 배열을 추가했습니다. 해결책은 기간을 내 searchResults 배열에 직접 추가하고 배열을 버리는 것만 큼 간단합니다 ...