目录结构调整
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199
codes/games/sales_service/indexDb.js
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199
codes/games/sales_service/indexDb.js
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(function(){
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var dbObject = {};
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dbObject.open = function(params){
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//数据库名
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dbObject.db_name = params.db_name;
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//数据库版本
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dbObject.db_version = params.db_version;
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//存储对象名
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dbObject.store_name = params.store_name;
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//IndexedDB对象
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dbObject.db = null;
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if (!window.indexedDB){
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console.log("你的浏览器不支持IndexedDB,请更换浏览器");
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}
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var request = indexedDB.open(dbObject.db_name, dbObject.db_version);
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//打开数据库成功
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request.onsuccess = function(event){
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console.log("打开IndexedDB数据库" + dbObject.db_name + "成功");
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dbObject.db = event.target.result;
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if (params.success_callback){
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params.success_callback();
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}
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}
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//打开数据库失败
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request.onerror = function(event) {
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console.log("打开IndexedDB数据库" + dbObject.db_name + "失败");
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console.log(event);
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if (params.error_callback){
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params.error_callback();
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}
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}
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//当打开的数据库版本高于当前版本时触发
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request.onupgradeneeded = function(event){
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console.log("IndexedDB数据库" + dbObject.db_name + "版本升级到" + dbObject.db_version);
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dbObject.db = event.target.result;
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if(!dbObject.db.objectStoreNames.contains(dbObject.store_name)){
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dbObject.db.createObjectStore(dbObject.store_name);
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}
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}
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}
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//添加或修改
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dbObject.put = function(key, value){
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try{
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if (!dbObject.db){
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return;
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}
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//此处必须显式声明事务
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var transaction = dbObject.db.transaction(dbObject.store_name, "readwrite");
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var store = transaction.objectStore(dbObject.store_name);
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var request = store.put(value, key);
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request.onsuccess = function(){
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// console.log("编辑IndexedDB记录成功：" + key);
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}
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request.onerror = function(event){
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console.log("编辑IndexedDB记录失败：" + key);
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console.log(event);
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}
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}
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catch(e){
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console.log(min_now() + "添加或修改IndexedDB失败");
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console.log(e);
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console.log(key);
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console.log(value);
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}
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}
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//删除
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dbObject.delete = function(key){
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try{
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if (!dbObject.db){
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return;
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}
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var transaction = dbObject.db.transaction(dbObject.store_name, "readwrite");
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var store = transaction.objectStore(dbObject.store_name);
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var request = store.delete(key);
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request.onsuccess = function(){
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// console.log("删除IndexedDB记录成功：" + key);
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}
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request.onerror = function(event){
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console.log("删除IndexedDB记录失败：" + key);
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console.log(event);
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}
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}
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catch(e){
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console.log(min_now() + "删除IndexedDB失败");
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console.log(e);
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console.log(key);
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}
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}
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//根据key获取value
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dbObject.get = function(key, succ_callback){
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try{
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if (!dbObject.db){
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return;
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}
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var transaction = dbObject.db.transaction(dbObject.store_name, "readwrite");
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var store = transaction.objectStore(dbObject.store_name);
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var request = store.get(key);
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request.onsuccess = function(){
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succ_callback(request.result);
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}
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request.onerror = function(event){
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console.log("获取IndexedDB记录失败：" + key);
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console.log(event);
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}
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}
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catch(e){
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console.log(min_now() + "获取IndexedDB失败");
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console.log(e);
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console.log(key);
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}
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}
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//获取所有的value
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dbObject.get_allvalue = function(success_callback, error_callback){
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try{
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if (!dbObject.db){
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return;
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}
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var transaction = dbObject.db.transaction(dbObject.store_name, "readwrite");
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var store = transaction.objectStore(dbObject.store_name);
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var request = store.getAll();
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request.onsuccess = function(){
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if (success_callback){
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success_callback(request.result);
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}
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}
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request.onerror = function(event){
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console.log("获取IndexedDB记录失败：all");
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console.log(event);
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if (error_callback){
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error_callback();
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}
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}
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}
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catch(e){
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console.log(min_now() + "获取全部的IndexedDB失败");
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console.log(e);
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}
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}
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//游标遍历
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dbObject.get_cursor = function(success_callback, error_callback){
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try{
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if (!dbObject.db){
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return;
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}
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var transaction = dbObject.db.transaction(dbObject.store_name, "readwrite");
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var store = transaction.objectStore(dbObject.store_name);
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var request = store.openCursor();
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request.onsuccess = function(event){
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if (success_callback){
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success_callback(event.target.result);
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}
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}
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request.onerror = function(event){
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console.log("获取IndexedDB记录失败：游标");
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console.log(event);
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if (error_callback){
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error_callback();
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}
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}
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}
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catch(e){
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console.log(min_now() + "获取IndexedDB游标失败");
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console.log(e);
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}
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}
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//清除整个对象存储(表)
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dbObject.clear = function(){
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try{
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if (!dbObject.db){
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return;
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}
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var transaction = dbObject.db.transaction(dbObject.store_name, "readwrite");
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var store = transaction.objectStore(dbObject.store_name);
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var request = store.clear();
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request.onsuccess = function(){
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console.log("清空IndexedDB对象存储成功：" + dbObject.store_name);
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}
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request.onerror = function(event){
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console.log("清空IndexedDB对象存储失败：" + dbObject.store_name);
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console.log(event);
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}
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}
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catch(e){
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console.log(min_now() + "清除IndexedDB失败");
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console.log(e);
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}
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}
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window.dbObject = dbObject;
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})();
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