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104 lines
2.8 KiB
JavaScript
104 lines
2.8 KiB
JavaScript
/**
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* @name CeL function for Indexed Database API
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* @fileoverview 本檔案包含了 Indexed Database API 用的 functions。
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*
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* @since
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* @example <code>
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CeL.run('data.statistics', function() {
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// table / objectStore
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// schema: use createIndex(name, keyPath, optionalParameters)
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// schema: {key:key name/key function, unique: false, multiEntry: false}
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// keyPath: key name @ objectStore
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// keyPath: how to get the key of inputted object.
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var store = new CeL.indexedDB(database_name, {
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store : store_name,
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version : 1,
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schema : [ key / column0, column1, column2 ],
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keyPath : 'id',
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autoIncrement : true,
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error : function() {
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}
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});
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store.add();
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store.get();
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store.delete();
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store.forEach(function() {
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});
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store.db.close();
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});
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* </code>
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*
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* @see http://www.w3.org/TR/IndexedDB/
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* https://developer.mozilla.org/en-US/docs/IndexedDB
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* https://developer.mozilla.org/zh-TW/docs/Web/API/IndexedDB_API/Using_IndexedDB
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*/
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'use strict';
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// --------------------------------------------------------------------------------------------
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// 不採用 if 陳述式，可以避免 Eclipse JSDoc 與 format 多縮排一層。
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typeof CeL === 'function' && CeL.run({
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// module name
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name : 'data.indexedDB',
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require : '',
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// 設定不匯出的子函式。
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// no_extend : '*',
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// 為了方便格式化程式碼，因此將 module 函式主體另外抽出。
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code : module_code
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});
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function module_code(library_namespace) {
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if (false) {
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var indexedDB;
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if (typeof indexedDB !== 'object')
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indexedDB = window.indexedDB || window.mozIndexedDB
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|| window.webkitIndexedDB || window.msIndexedDB;
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}
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// ------------------------------------------------------------
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function IndexedDB(database_name, options) {
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options = library_namespace.setup_options(options);
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var request = window.indexedDB.open(database_name, options.version);
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// var db = event.target.result;
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request.onsuccess = options.onsuccess;
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request.onerror = options.onerror;
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var _this = this;
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request.onupgradeneeded = function(event) {
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// request === event.target
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this.db = event.target.result;
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console.log(this.db);
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this.db.onerror = function(event) {
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// Generic error handler for all errors targeted at this
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// database's requests!
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console.error("Database error: " + event.target.errorCode);
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};
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var store_name = options.store, objectStore;
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if (!this.db.objectStoreNames.contains(store_name)) {
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objectStore = this.db.createObjectStore(store_name, {
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keyPath : options.keyPath,
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autoIncrement : options.autoIncrement
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});
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}
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};
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}
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// ------------------------------------------------------------
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TODO
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// ------------------------------------------------------------
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return IndexedDB;
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}
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