LKDBHelper
一个sqlite ORM（全自动操作数据库）框架。
线程安全、不再担心递归锁死的问题
安装要求
- iOS 4.3+
- 仅支持 ARC
- FMDB
添加到你的项目
如果你使用 CocoaPods，直接添加下面的代码到你的 Podfile文件
pod 'LKDBHelper'
使用 Encryption，添加下面的代码（顺序不能错）
pod 'FMDB/SQLCipher'
pod 'LKDBHelper'
@property(strong,nonatomic)NSString* encryptionKey;
基础用法
-
创建一个 Objective-C类，作为 data model
@interface LKTest : NSObject @property(copy,nonatomic)NSString* name; @property NSUInteger age; @property BOOL isGirl; @property(strong,nonatomic)LKTestForeign* address; @property(strong,nonatomic)NSArray* blah; @property(strong,nonatomic)NSDictionary* hoho; @property char like; ... -
在 .m文件中重写 getTableName 方法（可选）
+(NSString *)getTableName { return @"LKTestTable"; } -
在 .m文件中重写回调方法（可选）
@interface NSObject(LKDBHelper_Delegate) +(void)dbDidCreateTable:(LKDBHelper*)helper tableName:(NSString*)tableName; +(void)dbDidAlterTable:(LKDBHelper*)helper tableName:(NSString*)tableName addColumns:(NSArray*)columns; +(BOOL)dbWillInsert:(NSObject*)entity; +(void)dbDidInserted:(NSObject*)entity result:(BOOL)result; +(BOOL)dbWillUpdate:(NSObject*)entity; +(void)dbDidUpdated:(NSObject*)entity result:(BOOL)result; +(BOOL)dbWillDelete:(NSObject*)entity; +(void)dbDidDeleted:(NSObject*)entity result:(BOOL)result; ///data read finish +(void)dbDidSeleted:(NSObject*)entity; @end -
初始化你的 model，赋值后插入数据库
LKTestForeign* foreign = [[LKTestForeign alloc]init]; foreign.address = @":asdasdasdsadasdsdas"; foreign.postcode = 123341; foreign.addid = 213214; //插入数据 insert table row LKTest* test = [[LKTest alloc]init]; test.name = @"zhan san"; test.age = 16; //外键 foreign key test.address = foreign; test.blah = @[@"1",@"2",@"3"]; test.blah = @[@"0",@[@1],@{@"2":@2},foreign]; test.hoho = @{@"array":test.blah,@"foreign":foreign,@"normal":@123456,@"date":[NSDate date]}; //同步 插入第一条 数据 Insert the first [test saveToDB]; //or //[globalHelper insertToDB:test]; -
select、delete、update、isExists、rowCount ...
select: NSMutableArray* array = [LKTest searchWithWhere:nil orderBy:nil offset:0 count:100]; for (id obj in arraySync) { addText(@"%@",[obj printAllPropertys]); } delete: [LKTest deleteToDB:test]; update: test.name = "rename"; [LKTest updateToDB:test where:nil]; isExists: [LKTest isExistsWithModel:test]; rowCount: [LKTest rowCountWithWhere:nil]; -
参数描述 “where”
For example: single: @"rowid = 1" or @{@"rowid":@1} more: @"rowid = 1 and sex = 0" or @{@"rowid":@1,@"sex":@0} when where is "or" type , such as @"rowid = 1 or sex = 0" you only use NSString array: @"rowid in (1,2,3)" or @{@"rowid":@[@1,@2,@3]} composite: @"rowid in (1,2,3) and sex=0 " or @{@"rowid":@[@1,@2,@3],@"sex":@0} If you want to be judged , only use NSString For example: @"date >= '2013-04-01 00:00:00'"
表结构映射
重写 getTableMapping 方法（可选）
+(NSDictionary *)getTableMapping
{
//return nil
return @{@"name":LKSQLInherit,
@"MyAge":@"age",
@"img":LKSQLInherit,
@"MyDate":@"date",
@"color":LKSQLInherit,
@"address":LKSQLUserCalculate};
}
更新表（可选）
+(void)dbDidAlterTable:(LKDBHelper *)helper tableName:(NSString *)tableName addColumns:(NSArray *)columns
{
for (int i=0; i<columns.count; i++)
{
LKDBProperty* p = [columns objectAtIndex:i];
if([p.propertyName isEqualToString:@"error"])
{
[helper executeDB:^(FMDatabase *db) {
NSString* sql = [NSString stringWithFormat:@"update %@ set error = name",tableName];
[db executeUpdate:sql];
}];
}
}
}
设置列属性（可选）
+(void)columnAttributeWithProperty:(LKDBProperty *)property
{
if([property.sqlColumnName isEqualToString:@"MyAge"])
{
property.defaultValue = @"15";
}
if([property.propertyName isEqualToString:@"date"])
{
property.isUnique = YES;
property.checkValue = @"MyDate > '2000-01-01 00:00:00'";
property.length = 30;
}
}
demo 截屏
测试表数据
外键数据
