数据库使用fmdb

#import "SQLdataManger.h"

#import "FMDatabaseAdditions.h"

static SQLdataManger * instance=nil;

#define SQLfileName @"__MACOSX"

@interfaceSQLdataManger(){

NSString *sqlDataPath;

}

@end

@implementation SQLdataManger

+(SQLdataManger*)getInstance

{

if( instance == nil ){

//        static dispatch_once_t onceToken;

@synchronized(self) {

instance =  [[SQLdataManger alloc] init];

[instance createTable];

NSLog(@"-------------------------startInit");

}

//        });

}

returninstance;

}

+ (void)clearInstance{

if (instance) {

instance = nil;

}

}

//将对象转换成json字符串

- (NSString *)changeObjectToJsonString : (id)objec{

NSData *tempData = [NSJSONSerialization dataWithJSONObject:objec options:0 error:nil];

NSString *jsonString = [[NSStringalloc]initWithData:tempData encoding:NSUTF8StringEncoding];

//    NSLog(@"jsonString is %@" ,jsonString);

return jsonString ;

}

- (void)createTable {

NSFileManager * fileManager = [NSFileManagerdefaultManager];

NSArray *path = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);

NSString *paths = [[path objectAtIndex:0] stringByAppendingPathComponent:SQLfileName];

sqlDataPath = paths;

if ([fileManager fileExistsAtPath:paths] == NO) {

// create it

FMDatabase * db = [FMDatabase databaseWithPath:paths];

if ([db open]) {

//建立第一张表：用于获取新闻是否读取状态

NSString * sql = @"CREATE TABLE 'ReadStateTable' (id text identity primary key , 'isRead' VARCHAR)";

BOOL res = [db executeUpdate:sql];

if (!res) {

NSLog(@"error when creating db table");

} else {

NSLog(@"succ to creating db table");

}

//建立第二张表，用于存储视频是否读取状态

sql = @"CREATE TABLE 'VideoReadStateTable' (id text identity primary key , 'isRead' VARCHAR)";

res = [db executeUpdate:sql];

if (!res) {

NSLog(@"error when creating db table");

} else {

NSLog(@"succ to creating db table");

}

//建立第三张表，用于存储联系人

sql = @"CREATE TABLE 'PersonListTable' (id text identity primary key , 'email' VARCHAR , 'headPic' VARCHAR ,'job' VARCHAR ,'name' VARCHAR ,'phone' VARCHAR ,'remark' VARCHAR )";

res = [db executeUpdate:sql];

if (!res) {

NSLog(@"error when creating db table");

} else {

NSLog(@"succ to creating db table");

}

[db close];

} else {

NSLog(@"error when open db");

}

}

}

- (NSString *)checkNULLstring:(NSString *)oriString{

NSString *string = @"";

if( !oriString ) return string;

if( [oriString isKindOfClass:[NSNull class] ] ) return string ;

string =[NSString stringWithFormat:@"%@" , oriString ];

return string ;

}

#pragma mark PersonList

- (BOOL)insertPersonListDataWithData:(NSArray *)transArray{

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

BOOL res = NO ;

int nums = [transArray count];

if ([db open]) {

[db beginTransaction];

BOOL isRollBack = NO;

@try {

NSString * sql = @"insert into PersonListTable (id,email,headPic,job,name,phone,remark) values(?,?,?,?,?,?,?)" ;

for( int i =0 ;i<nums ;i++ ){

NSDictionary *dic = [transArray objectAtIndex:i];

NSString *idString = [self checkNULLstring:[dic objectForKey:@"id"]];

NSString *email = [self checkNULLstring:[dic objectForKey:@"email"]];

NSString *headPic = [self checkNULLstring:[dic objectForKey:@"headPic"]];

NSString *job = [self checkNULLstring:[dic objectForKey:@"job"]];

NSString *name = [self checkNULLstring:[dic objectForKey:@"name"]];

NSString *phone = [self checkNULLstring:[dic objectForKey:@"phone"]];

NSString *remark = [self checkNULLstring:[dic objectForKey:@"remark"]];

res = [db executeUpdate:sql,idString,email,headPic,job,name,phone,remark];

}

}

@catch (NSException *exception) {

[db rollback];

}

@finally {

if (!isRollBack) {

res = YES ;

[db commit];

}

}

[db close];

}

returnYES;

}

- (NSArray *)queryPersonListWithSql:(NSString *)querySQL{

NSMutableArray *mutableArray = [[NSMutableArray alloc]init] ;

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

NSString *sql = [NSStringstringWithFormat:@"select * from PersonListTable"];

if( querySQL && ![querySQL isEqualToString:@""] ){

sql = [NSStringstringWithFormat:@"%@ where name like '%%%@%%' or job like '%%%@%%'" ,sql , querySQL , querySQL ];

}

if ([db open]) {

FMResultSet * rs = [db executeQuery:sql];

while ([rs next]) {

NSDictionary *dic = [rs resultDictionary] ;

[mutableArray addObject:dic];

}

[db close];

}

return mutableArray ;

}

#pragma mark NewsTable

- (BOOL)queryIsReadOfReadStateTable:(NSString *)idString{

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

BOOL isExit = NO ;

if ([db open]) {

NSString * sql = [NSStringstringWithFormat:@"select * from ReadStateTable where id = '%@' " , idString ];

//        NSLog(@"sql is %@" , sql);

FMResultSet * rs = [db executeQuery:sql];

while ([rs next]) {

NSDictionary *dic = [rs resultDictionary] ;

isExit = [[dic objectForKey:@"isRead"] boolValue] ;

break;

}

[db close];

}

return isExit ;

}

- (BOOL)insertReadStateTableData:(NSArray *)transArray{

//    return NO;

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

BOOL res = NO ;

int nums = [transArray count];

if ([db open]) {

NSString * sql = @"insert into ReadStateTable (id,isRead) (SELECT '%@','%@' FROM ReadStateTable u2  JOIN( SELECT COUNT(*) num FROM ReadStateTable u1 WHERE u1.id = '%@') u3 ON u3.num < 1  LIMIT 1)" ;

for( int i =0 ;i<nums ;i++ ){

NSDictionary *dic = [transArray objectAtIndex:i];

NSString *idString = [self checkNULLstring:[dic objectForKey:@"id"]];

NSString *isRead = [NSString stringWithFormat:@"%@",[NSNumber numberWithBool:NO]];

sql = [NSString stringWithFormat:sql,idString,isRead,idString];

res = [db executeUpdate:sql];

}

//        [db beginTransaction];

//        BOOL isRollBack = NO;

//        @try {

//            //CREATE TABLE 'ReadStateTable' (id text identity primary key , 'isRead' VARCHAR)

//            NSString * sql = @"insert into ReadStateTable (id,isRead) values(?,?)" ;

//            for( int i =0 ;i<nums ;i++ ){

//                NSDictionary *dic = [transArray objectAtIndex:i];

//                NSString *idString = [self checkNULLstring:[dic objectForKey:@"id"]];

//                NSString *isRead = [NSString stringWithFormat:@"%@",[NSNumber numberWithBool:NO]];

//

//                res = [db executeUpdate:sql,idString,isRead];

//            }

//        }

//        @catch (NSException *exception) {

//            [db rollback];

//        }

//        @finally {

//            if (!isRollBack) {

//                res = YES ;

//                [db commit];

//            }

//        }

[db close];

}

returnYES;

}

- (BOOL)inserAlreadyReadStateWithIdString:(NSString *)idString{

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

BOOL res = NO ;

if ([db open]) {

NSString * sql = @"insert or replace into ReadStateTable (id,isRead) values(?,?)" ;

NSString *isRead = [NSStringstringWithFormat:@"%@",[NSNumbernumberWithBool:YES]];

res = [db executeUpdate:sql,idString,isRead];

[db close];

}

return res ;

}

#pragma mark Video Read

- (BOOL)videoQueryIsReadOfReadStateTable:(NSString *)idString{

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

BOOL isExit = NO ;

if ([db open]) {

NSString * sql = [NSStringstringWithFormat:@"select * from VideoReadStateTable where id = '%@' " , idString ];

//        NSLog(@"sql is %@" , sql);

FMResultSet * rs = [db executeQuery:sql];

while ([rs next]) {

NSDictionary *dic = [rs resultDictionary] ;

isExit = [[dic objectForKey:@"isRead"] boolValue] ;

break;

}

[db close];

}

return isExit ;

}

- (BOOL)videoInsertReadStateTableData:(NSArray *)transArray{

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

BOOL res = NO ;

int nums = [transArray count];

if ([db open]) {

NSString * sql = @"insert into VideoReadStateTable (id,isRead) (SELECT '%@','%@' FROM VideoReadStateTable u2  JOIN( SELECT COUNT(*) num FROM VideoReadStateTable u1 WHERE u1.id = '%@') u3 ON u3.num < 1  LIMIT 1)" ;

for( int i =0 ;i<nums ;i++ ){

NSDictionary *dic = [transArray objectAtIndex:i];

NSString *idString = [self checkNULLstring:[dic objectForKey:@"id"]];

NSString *isRead = [NSString stringWithFormat:@"%@",[NSNumber numberWithBool:NO]];

sql = [NSString stringWithFormat:sql,idString,isRead,idString];

res = [db executeUpdate:sql];

}

//        [db beginTransaction];

//        BOOL isRollBack = NO;

//        @try {

//            //CREATE TABLE 'ReadStateTable' (id text identity primary key , 'isRead' VARCHAR)

//            NSString * sql = @"insert into VideoReadStateTable (id,isRead) values(?,?)" ;

//            for( int i =0 ;i<nums ;i++ ){

//                NSDictionary *dic = [transArray objectAtIndex:i];

//                NSString *idString = [self checkNULLstring:[dic objectForKey:@"id"]];

//                NSString *isRead = [NSString stringWithFormat:@"%@",[NSNumber numberWithBool:NO]];

//

//                res = [db executeUpdate:sql,idString,isRead];

//            }

//        }

//        @catch (NSException *exception) {

//            [db rollback];

//        }

//        @finally {

//            if (!isRollBack) {

//                res = YES ;

//                [db commit];

//            }

//        }

[db close];

}

returnYES;

}

- (BOOL)videoInserAlreadyReadStateWithIdString:(NSString *)idString{

FMDatabase * db = [FMDatabasedatabaseWithPath:sqlDataPath];

BOOL res = NO ;

if ([db open]) {

NSString * sql = @"insert or replace into VideoReadStateTable (id,isRead) values(?,?)" ;

NSString *isRead = [NSStringstringWithFormat:@"%@",[NSNumbernumberWithBool:YES]];

res = [db executeUpdate:sql,idString,isRead];

[db close];

}

return res ;

}