this is sqlite ORM (an automatic database operation)
thread-safe and not afraid of recursive deadlock
简书：不定时更新 https://www.jianshu.com/users/376b950a20ec
Supported NSArray,NSDictionary, ModelClass, NSNumber, NSString, NSDate, NSData, UIColor, UIImage, CGRect, CGPoint, CGSize, NSRange, int,char,float, double, long.. attribute to insert and select automation.
全面支持 NSArray,NSDictionary, ModelClass, NSNumber, NSString, NSDate, NSData, UIColor, UIImage, CGRect, CGPoint, CGSize, NSRange, int,char,float, double, long.. 等属性的自动化操作(插入和查询)
- iOS 12.0+
- ARC only
- FMDB(https://github.com/ccgus/fmdb)
由于 FMDB 限制，需要支持 iOS12 之前系统，自行限定到 FMDB(2.7.5) 和 LKDBHelper (2.6.3)
If you are using CocoaPods, then, just add this line to your Podfile
pod 'LKDBHelper'Before iOS12
pod 'LKDBHelper', '2.6.3'
pod 'FMDB', '2.7.5'If you are using encryption, Order can not be wrong
pod 'FMDB/SQLCipher'
pod 'LKDBHelper'@property(strong,nonatomic)NSString* encryptionKey;
- Create a new Objective-C class for your data model
@interface LKTest : NSObject
@property (nonatomic, copy) NSURL *url;
@property (nonatomic, copy) NSString *name;
@property (nonatomic, assign) NSUInteger age;
@property (nonatomic, assign) BOOL isGirl;
@property (nonatomic, strong) LKTestForeign *address;
@property (nonatomic, strong) NSArray *blah;
@property (nonatomic, strong) NSDictionary *hoho;
@property (nonatomic, assign) char like;
...- in the *.m file, overwirte getTableName function (option)
+ (NSString *)getTableName {
return @"LKTestTable";
}- in the *.m file, overwirte callback function (option)
@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
- Initialize your model with data and insert to database
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 array) {
addText(@"%@",[obj printAllPropertys]);
}
delete:
[LKTest deleteToDB:test];
update:
test.name = "rename";
[LKTest updateToDB:test where:nil];
isExists:
[LKTest isExistsWithModel:test];
rowCount:
[LKTest rowCountWithWhere:nil];
- Description of parameters "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'"overwirte getTableMapping Function (option)
//手动or自动 绑定sql列
+ (NSDictionary *)getTableMapping {
return @{ @"name" : LKSQL_Mapping_Inherit,
@"MyAge" : @"age",
@"img" : LKSQL_Mapping_Inherit,
@"MyDate" : @"date",
// version 2 after add
@"color" : LKSQL_Mapping_Inherit,
//version 3 after add
@"address" : LKSQL_Mapping_UserCalculate,
@"error" : LKSQL_Mapping_Inherit
};
}// 表结构更新回调
+ (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];
}];
}
}
LKErrorLog(@"your know %@", columns);
}// 定制化列属性
+ (void)columnAttributeWithProperty:(LKDBProperty *)property {
if ([property.sqlColumnName isEqualToString:@"MyAge"]) {
property.defaultValue = @"15";
} else if ([property.propertyName isEqualToString:@"date"]) {
// if you use unique,this property will also become the primary key
// property.isUnique = YES;
property.checkValue = @"MyDate > '2000-01-01 00:00:00'";
property.length = 30;
}
}
table test data
foreign key data
Remember to override the class function getTableName for model.
Version 1.1 @ 2012-6-20
- automatic table mapping
- support optional columns
- support column attribute settings
- you can return column content
Version 1.0 @ 2013-5-19
- overwrite and rename LKDBHelper
- property type support: UIColor,NSDate,UIImage,NSData,CGRect,CGSize,CGPoint,int,float,double,NSString,short,char,bool,NSInterger..
- fix a recursive deadlock.
- rewrite the asynchronous operation -
- thread-safe
- various bug modified optimize cache to improve performance
- test and demos
- bug fixes, speed improvements
Version 0.0.1 @ 2012-10-1
- Initial release with LKDAOBase
This code is distributed under the terms and conditions of the MIT license.
- if you are fixing a bug you discovered, please add also a unit test so I know how exactly to reproduce the bug before merging
Author: Jianghuai Li
Contributors: waiting for you to join