//
//  channelListMethodModel.m
//  ThePaperBase
//
//  Created by scar1900 on 15/7/30.
//  Copyright (c) 2015年 scar1900. All rights reserved.
//

#import "channelListMethodModel.h"

@implementation channelListMethodModel

+ (BOOL)checkIsHaveRead:(NSString*)contId {
    BOOL isRead = NO;
    
    NSError *error;
    
    NSFetchRequest *request = [[NSFetchRequest alloc]init];
    //为已创建好的实体利用检索到的上下文创建一个实体描述
    NSEntityDescription *entityDescription = [NSEntityDescription entityForName:@"HaveReadContentList"
                                                         inManagedObjectContext:[CoreDataManager shareInstance].managedObjectContext];
    [request setEntity:entityDescription];
    
    //确定持久库中是否存在与此字段相对应的托管对象，所以穿件一个谓词来确定字段的正确对象：
    NSPredicate *pred = [NSPredicate predicateWithFormat:@"contId == %@",contId];
    [request setPredicate:pred];
    
    NSArray *objs = [[CoreDataManager shareInstance].managedObjectContext executeFetchRequest:request error:&error];
    
    if (objs == nil) {
        TPLOG(@"there was an error!!");
    }
    
    if (objs.count > 0) {
        isRead = YES;
    }else isRead = NO;
    
    return isRead;
}

@end