ming-demo1/lib/redux/indexedDB.js

mdf metaui web

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.openDB = openDB;
exports.IDB_saveData = IDB_saveData;
exports.IDB_deleteOneData = IDB_deleteOneData;
exports.IDB_deleteSomeData = IDB_deleteSomeData;
exports.IDB_searchData = IDB_searchData;
exports.IDB_getData = IDB_getData;
exports.IDB_tableClear = IDB_tableClear;
var dbName = 'off-lineDB',
    daVer = 1,
    db = '',
    dbData = [];

function openDB(dbName, daVer, tables) {
  return new Promise(function (resolve, reject) {
    var indexedDB = window.indexedDB || window.webkitIndexedDB || window.mozIndexedDB || window.msIndexedDB;

    if (!indexedDB) {
      console.log("你的浏览器不支持IndexedDB");
    }

    var request = indexedDB.open(dbName, daVer);

    request.onsuccess = function (e) {
      db = e.target.result;
      window.__db = db;
      console.log('连接数据库成功');

      db.onclose = function (e) {
        console.log('数据库意外关闭');
      };

      db.onversionchange = function (e) {
        console.log('数据库版本变化时触发（发生upgradeneeded事件，或调用indexedDB.deleteDatabase()）');
      };

      resolve(true);
    };

    request.onerror = function () {
      console.log('连接数据库失败');
      resolve('连接数据库失败');
    };

    request.onblocked = function (e) {
      console.log('上一次的数据库连接还未关闭');
    };

    request.onupgradeneeded = function (e) {
      db = e.target.result;
      tables.forEach(function (name) {
        if (!db.objectStoreNames.contains(name)) {
          if (name == 'offlineLogin' || name == 'metaData' || name == 'billNodata') {
            var store = db.createObjectStore(name, {
              keyPath: 'attrKey'
            });
          } else {
            var store = db.createObjectStore(name, {
              keyPath: 'indexedDB_id',
              autoIncrement: true
            });
          }
        }
      });
    };
  });
}

function IDB_saveData(data, dbTableName) {
  return new Promise(function (resolve, reject) {
    var name = dbTableName ? dbTableName : 'save_data';
    var tx = db.transaction(name, 'readwrite');
    var store = tx.objectStore(name);
    var req = store.put(data);

    req.onsuccess = function () {
      console.log('成功保存id为' + this.result + '的数据');
      resolve(true);
    };

    req.onerror = function (e) {
      console.log('保存失败');
      console.log(e.target.result.error);
      cb.utils.alert('缓存数据失败！', 'error');
      reject(e.target.result);
    };
  });
}

function IDB_deleteOneData() {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  return new Promise(function (resolve) {
    var id = options.id,
        dbTableName = options.dbTableName;
    dbTableName || (dbTableName = 'save_data');
    var tx = db.transaction(dbTableName, 'readwrite');
    var store = tx.objectStore(dbTableName);
    var req = store["delete"](id);

    req.onsuccess = function () {
      resolve('删除成功');
    };

    req.onerror = function () {
      resolve('删除失败');
    };
  });
}

function IDB_deleteSomeData() {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  return new Promise(function (resolve) {
    var id = options.id,
        dbTableName = options.dbTableName;
    dbTableName || (dbTableName = 'save_data');
    var tx = db.transaction(dbTableName, 'readwrite');
    var store = tx.objectStore(dbTableName);

    if (Array.isArray.call(null, id) && id.length > 0) {
      var _loop = function _loop(i, length) {
        req = store["delete"](id[i]);

        req.onsuccess = function () {
          console.log("\u5220\u9664\u591A\u6761\u6570\u636E\u65F6\u5019\uFF0Cid\u4E3A\uFF1A".concat(id[i], "\u6210\u529F"));
        };

        req.onerror = function (e) {
          console.error("\u5220\u9664\u591A\u6761\u6570\u636E\u65F6\u5019\uFF0Cid\u4E3A\uFF1A".concat(id[i], "\u6570\u636E\u5220\u9664\u65F6\u5019\u51FA\u9519\uFF1B\u9519\u8BEF\u4E3A\uFF1A").concat(e));
        };
      };

      for (var i = 0, length = id.length; i < length; i++) {
        var req;

        _loop(i, length);
      }
    }

    tx.oncomplete = function (e) {
      resolve('删除成功');
    };

    tx.onerror = function (e) {
      resolve('删除失败');
      console.error('删除多条数据时候tansaction error: ' + e);
    };
  });
}

function IDB_searchData() {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var onlyCheck = options.onlyCheck,
      dbTableName = options.dbTableName;
  return new Promise(function (resolve, reject) {
    var name = dbTableName ? dbTableName : 'save_data';
    var tx = db.transaction(name, 'readonly');
    var store = tx.objectStore(name);
    var range = IDBKeyRange.lowerBound(1);
    var req = store.openCursor(range, 'next');
    dbData = [];

    req.onsuccess = function () {
      var cursor = this.result;

      if (cursor) {
        if (onlyCheck) {
          dbData.push(cursor.value);
          resolve(dbData);
          return;
        }

        dbData.push(cursor.value);
        cursor["continue"]();
      } else {
        resolve(dbData);
      }
    };

    req.onerror = function (e) {
      reject(e.target.result);
    };
  });
}

function IDB_getData() {
  var options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  return new Promise(function (resolve, reject) {
    var key = options.key,
        dbTableName = options.dbTableName;
    var tx = db.transaction(dbTableName, 'readonly');
    var store = tx.objectStore(dbTableName);
    var req = store.get(key);

    req.onsuccess = function (e) {
      resolve(e.target.result);
    };

    req.onerror = function (e) {
      reject(e.target.result);
    };
  });
}

function IDB_tableClear(dbTableName) {
  return new Promise(function (resolve, reject) {
    if (!dbTableName) {
      resolve(false);
      return;
    }

    var tx = db.transaction(dbTableName, 'readwrite');
    var store = tx.objectStore(dbTableName);
    var req = store.clear();

    req.onsuccess = function (e) {
      resolve("\u6E05\u9664".concat(dbTableName, "\u8868\u5168\u90E8\u6570\u636E\u6210\u529F"));
    };

    req.onerror = function (e) {
      console.error("\u6E05\u9664".concat(dbTableName, "\u8868\u5168\u90E8\u6570\u636E\u5931\u8D25\uFF01"));
      resolve(false);
    };
  });
}
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