数据库

//
// SDPaientInfoMgr.m
// TestSL
//
// Created by pcyang on 16/7/7.
// Copyright © 2016年 pcyang. All rights reserved.
//

import "SDPaientInfoMgr.h"

import "FMDatabase.h"

import "SDPaientInfoItem.h"

import "SDPhotoInfo.h"

import

static FMDatabase *fmdb = nil;

@interface SDPaientInfoMgr ()
@property (nonatomic,retain) NSString *localCacheDirectory;
@end

@implementation SDPaientInfoMgr

• (instancetype)init{
  if (self = [super init]) {

    static dispatch_once_t oneToken;
    dispatch_once(&oneToken, ^{
        NSString *document = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)[0];
        NSString *filePath = [document stringByAppendingPathComponent:@"database.sqlite"];
      //  NSLog(@"%@",document);
        fmdb = [FMDatabase databaseWithPath:filePath];
        
        [self creatTable:[SDPaientInfoItem class] tableName:kPaientTableName keyName:nil primaryKey:nil];
  
  
    });
  

  }
  return self;
  }

• (SDPaientInfoMgr*)shareAGDatabaseManager{
  return [[SDPaientInfoMgr alloc]init];
  }

• (BOOL)creatTable:(Class)cls tableName:(NSString)tbName keyName:(NSString)keyName primaryKey:(NSString*) key{

  NSArray *array = [self getModelAllProperty:cls];
  NSMutableString *sql = [NSMutableString stringWithFormat:@"CREATE TABLE IF NOT EXISTS %@ (",tbName];

  for (int i = 0; i < array.count; i++) {
  NSDictionary *dic = array[i];
  [sql appendFormat:@"%@ %@ ",[dic objectForKey:@"name"],[dic objectForKey:@"type"]];
  if(keyName != nil && [keyName isEqualToString:[dic objectForKey:@"name"]]){
  [sql appendString:key];
  }
  if (i < array.count - 1){
  [sql appendString:@","];
  }
  }

  [sql appendString:@")"];

  // NSLog(@"创建表格: %@",sql);

  [fmdb open];
  BOOL result = [fmdb executeUpdate:[sql copy]];
  //NSLog(@"创建表格:%@",result ? @"成功":@"失败");
  [fmdb close];
  return result;
  }

• (BOOL)insert:(id)model tableName:(NSString*)tbName{

  NSArray *array = [self getModelAllProperty:[model class]];

  NSMutableString *propertyStr = [[NSMutableString alloc]init];
  NSMutableString *valuesStr = [[NSMutableString alloc]init];

  for (int i = 0; i < array.count; i++) {
  NSDictionary dic = array[i];
  [propertyStr appendString:[dic objectForKey:@"name"]];
  NSString tempValue = [model valueForKey:[dic objectForKey:@"name"]];
  if (tempValue == nil) {
  tempValue = @"";
  }
  [valuesStr appendFormat:@"'%@'",tempValue];

    if (i < array.count - 1){
        [propertyStr appendString:@","];
        [valuesStr appendString:@","];
    }
  

  }
  NSMutableString *sql = [NSMutableString stringWithFormat:@"INSERT INTO %@ (%@) values (%@)",tbName,propertyStr ,valuesStr];
  // NSLog(@"添加数据 : %@",sql);
  [fmdb open];
  BOOL result = [fmdb executeUpdate:[sql copy]];
  [fmdb close];
  //NSLog(@"添加数据:%@",result ? @"成功":@"失败");

  return result;
  }

• (BOOL)update:(id)model tableName:(NSString)tbName where:(NSString)str{
  NSArray *array = [self getModelAllProperty:[model class]];
  NSMutableString *sql = [NSMutableString stringWithFormat:@"UPDATE %@ SET ",tbName];

  for (int i = 0; i < array.count; i++) {
  NSDictionary *dic = array[i];
  NSString pro = [dic objectForKey:@"name"];
  NSString tempValue = [model valueForKey:pro];
  if (tempValue == nil) {
  tempValue = @"";
  }
  [sql appendFormat:@"%@ = '%@'",pro,tempValue];
  if (i < array.count - 1){
  [sql appendString:@","];
  }
  }

  [sql appendFormat:@" where %@",str];

// NSLog(@"修改数据 : %@",sql);
[fmdb open];
BOOL result = [fmdb executeUpdate:[sql copy]];
[fmdb close];
// NSLog(@"更新数据:%@",result ? @"成功":@"失败");
return result;
}

• (BOOL)deleteTableName:(NSString)tbName where:(NSString)str{
  NSString *sql = [NSString stringWithFormat:@"delete from %@ where %@",tbName,str];
  // NSLog(@"删除数据 : %@",sql);
  [fmdb open];
  BOOL result = [fmdb executeUpdate:sql];
  [fmdb close];
  // NSLog(@"更新数据:%@",result ? @"成功":@"失败");
  return result;
  }

• (NSArray)select:(Class)model tableName:(NSString)tbName where:(NSString*)str{
  NSString *sql = [NSString stringWithFormat:@"select * from %@ where %@",tbName,str];
  NSArray *array = [self propertiesInModel:[model class]];
  [fmdb open];
  FMResultSet *set = [fmdb executeQuery:sql];
  NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
  NSMutableArray allArray = [[NSMutableArray alloc]init];
  while ([set next]) {
  for (int i = 0; i < array.count; i++) {
  NSString propertyName = array[i];
  [dic setValue:[set stringForColumn:propertyName] forKey:propertyName];
  }

    id object = [[model alloc] initWithInfo:dic];
    [allArray addObject:object];
  

  }

  [set close];
  [fmdb close];
  return [allArray copy];
  }

• (NSArray)selectALL:(Class)model tableName:(NSString)tbName {
  NSString *sql = [NSString stringWithFormat:@"select * from %@ ",tbName];
  NSArray *array = [self propertiesInModel:[model class]];
  [fmdb open];
  FMResultSet *set = [fmdb executeQuery:sql];
  NSMutableDictionary *dic = [[NSMutableDictionary alloc]init];
  NSMutableArray allArray = [[NSMutableArray alloc]init];
  while ([set next]) {
  for (int i = 0; i < array.count; i++) {
  NSString propertyName = array[i];
  [dic setValue:[set stringForColumn:propertyName] forKey:propertyName];
  }

    id object = [[model alloc] initWithInfo:dic];
  

// NSString * name = [set stringForColumn:@"name"];
// NSString * birthday = [set stringForColumn:@"birthday"];
// NSString * avatarFileName = [set stringForColumn:@"avatarFileName"];
// long sId = [set longForColumn:@"sId"];
// SDPaientInfoItem* suffererItem = [[SDPaientInfoItem class] alloc];
// suffererItem.name = name;
// suffererItem.sId = sId;
// suffererItem.birthday = birthday;
// suffererItem.avatarFileName = avatarFileName;

    [allArray addObject:object];
}

[set close];
[fmdb close];
return [allArray copy];

}

• (NSArray *)propertiesInModel:(id)model {
  if (model == nil) {
  return nil;
  }

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

  NSString *className = NSStringFromClass([model class]);
  id classObject = objc_getClass([className UTF8String]);
  unsigned int count = 0;
  objc_property_t *properties = class_copyPropertyList(classObject, &count);

  for (int i = 0; i < count; i++) {
  // 取得属性名
  objc_property_t property = properties[i];
  NSString *propertyName = [[NSString alloc] initWithCString:property_getName(property)
  encoding:NSUTF8StringEncoding];
  [propertiesArray addObject:propertyName];
  }

  return [propertiesArray copy];
  }

pragma mark --- 辅助方法 ---

• (NSArray *)getModelAllProperty:(Class)cls{

  unsigned int count = 0;
  objc_property_t *propertys = class_copyPropertyList(cls, &count);
  NSMutableArray *array = [NSMutableArray array];
  for (int i = 0; i < count; i++) {

    objc_property_t property = propertys[i];
    NSString *propertyName = [NSString stringWithCString:property_getName(property) encoding:NSUTF8StringEncoding];
    if ([propertyName isEqualToString:@"selected"]) {   //现在这里过滤掉photoinfo的selected属性
        continue;
    }
    
    NSString *type = [self getPropertyAttributeValue:property name:@"T"];
    
    if ([type isEqualToString:@"q"]||[type isEqualToString:@"i"]) {
        type = @"INTEGER";
    }else if([type isEqualToString:@"f"] || [type isEqualToString:@"d"]){
        type = @"FLOAT";
    }else{
        type = @"TEXT";
    }
    
    NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:propertyName , @"name",type , @"type", nil];
    
    [array addObject:dic];
  

  }
  free(propertys);

  return array.copy;
  }

/**

• 获取属性的特征值
  */

• (NSString)getPropertyAttributeValue:(objc_property_t) pro name:(NSString)name{

  unsigned int count = 0;
  objc_property_attribute_t *attributes = property_copyAttributeList(pro, &count);

  for (int i = 0 ; i < count; i++) {
  objc_property_attribute_t attribute = attributes[i];
  if (strcmp(attribute.name, name.UTF8String) == 0) {
  return [NSString stringWithCString:attribute.value encoding:NSUTF8StringEncoding];
  }
  }
  free(attributes);
  return nil;
  }
  @end