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2026-07-13 12:35:01 +08:00

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3.3 KiB
Objective-C

//
// TLDBFriendStore.m
// TLChat
//
// Created by 李伯坤 on 16/3/22.
// Copyright © 2016年 李伯坤. All rights reserved.
//
#import "TLDBFriendStore.h"
#import "TLDBFriendSQL.h"
#import "TLDBManager.h"
#import "TLUser.h"
@implementation TLDBFriendStore
- (id)init
{
if (self = [super init]) {
self.dbQueue = [TLDBManager sharedInstance].commonQueue;
BOOL ok = [self createTable];
if (!ok) {
DDLogError(@"DB: 好友表创建失败");
}
}
return self;
}
- (BOOL)createTable
{
NSString *sqlString = [NSString stringWithFormat:SQL_CREATE_FRIENDS_TABLE, FRIENDS_TABLE_NAME];
return [self createTable:FRIENDS_TABLE_NAME withSQL:sqlString];
}
- (BOOL)addFriend:(TLUser *)user forUid:(NSString *)uid
{
NSString *sqlString = [NSString stringWithFormat:SQL_UPDATE_FRIEND, FRIENDS_TABLE_NAME];
NSArray *arrPara = [NSArray arrayWithObjects:
TLNoNilString(uid),
TLNoNilString(user.userID),
TLNoNilString(user.username),
TLNoNilString(user.nikeName),
TLNoNilString(user.avatarURL),
TLNoNilString(user.remarkName),
@"", @"", @"", @"", @"", nil];
BOOL ok = [self excuteSQL:sqlString withArrParameter:arrPara];
return ok;
}
- (BOOL)updateFriendsData:(NSArray *)friendData forUid:(NSString *)uid
{
NSArray *oldData = [self friendsDataByUid:uid];
if (oldData.count > 0) {
// 建立新数据的hash表,用于删除数据库中的过时数据
NSMutableDictionary *newDataHash = [[NSMutableDictionary alloc] init];
for (TLUser *user in friendData) {
[newDataHash setValue:@"YES" forKey:user.userID];
}
for (TLUser *user in oldData) {
if ([newDataHash objectForKey:user.userID] == nil) {
BOOL ok = [self deleteFriendByFid:user.userID forUid:uid];
if (!ok) {
DDLogError(@"DBError: 删除过期好友失败");
}
}
}
}
for (TLUser *user in friendData) {
BOOL ok = [self addFriend:user forUid:uid];
if (!ok) {
return ok;
}
}
return YES;
}
- (NSMutableArray *)friendsDataByUid:(NSString *)uid
{
__block NSMutableArray *data = [[NSMutableArray alloc] init];
NSString *sqlString = [NSString stringWithFormat:SQL_SELECT_FRIENDS, FRIENDS_TABLE_NAME, uid];
[self excuteQuerySQL:sqlString resultBlock:^(FMResultSet *retSet) {
while ([retSet next]) {
TLUser *user = [[TLUser alloc] init];
user.userID = [retSet stringForColumn:@"uid"];
user.username = [retSet stringForColumn:@"username"];
user.nikeName = [retSet stringForColumn:@"nikename"];
user.avatarURL = [retSet stringForColumn:@"avatar"];
user.remarkName = [retSet stringForColumn:@"remark"];
[data addObject:user];
}
[retSet close];
}];
return data;
}
- (BOOL)deleteFriendByFid:(NSString *)fid forUid:(NSString *)uid
{
NSString *sqlString = [NSString stringWithFormat:SQL_DELETE_FRIEND, FRIENDS_TABLE_NAME, uid, fid];
BOOL ok = [self excuteSQL:sqlString, nil];
return ok;
}
@end