How to use openDatabase method in wpt

Best JavaScript code snippet using wpt

wpOpenDatabase.js

Source:wpOpenDatabase.js

1var cordova = require('cordova');2var utils = {};3function UUIDcreatePart(length) {4    var uuidpart = "";5    for (var i=0; i<length; i++) {6        var uuidchar = parseInt((Math.random() * 256), 10).toString(16);7        if (uuidchar.length == 1) {8            uuidchar = "0" + uuidchar;9        }10        uuidpart += uuidchar;11    }12    return uuidpart;13}14/**15 * Create a UUID16 */17utils.createUUID = function() {18    return UUIDcreatePart(4) + '-' +19        UUIDcreatePart(2) + '-' +20        UUIDcreatePart(2) + '-' +21        UUIDcreatePart(2) + '-' +22        UUIDcreatePart(6);23};24/**25 * Callback from native code when query fails PRIVATE METHOD26 *27 * @param reason28 *            Error message29 * @param id30 *            Query id31 */32function failQuery(reason, id) {33    var query = openDatabase.queryQueue[id];34    if (query) {35        try {36            delete openDatabase.queryQueue[id];37            // Get transaction38            var tx = query.tx;39            // If transaction hasn't failed40            // Note: We ignore all query results if previous query41            // in the same transaction failed.42            if (tx && tx.queryList[id]) {43                tx.queryList = {};44                try {45                    if (typeof query.errorCallback === 'function') {46                        query.errorCallback(query.tx, reason);47                    }48                } catch (ex) {49                    console.log("executeSql error calling user error callback: " + ex);50                }51                tx.queryFailed(id, reason);52            }53        } catch (e) {54            console.log("executeSql error: " + e);55        }56    }57}58/**59 * SQL query object PRIVATE METHOD60 *61 * @constructor62 * @param tx63 *            The transaction object that this query belongs to64 */65var wpdb_Query = function(tx) {66    // Set the id of the query67    this.id = utils.createUUID();68    // Add this query to the queue69    openDatabase.queryQueue[this.id] = this;70    // Init result71    this.resultSet = [];72    // Set transaction that this query belongs to73    this.tx = tx;74    // Add this query to transaction list75    this.tx.queryList[this.id] = this;76    // Callbacks77    this.successCallback = null;78    this.errorCallback = null;79};80/**81 * Transaction object PRIVATE METHOD82 *83 * @constructor84 */85var wpdb_Tx = function() {86    // Set the id of the transaction87    this.id = utils.createUUID();88    // Callbacks89    this.successCallback = null;90    this.errorCallback = null;91    // Query list92    this.queryList = {};93};94/**95 * Mark query in transaction as complete. If all queries are complete, call the user's transaction success96 * callback.97 *98 * @param id99 *            Query id100 */101wpdb_Tx.prototype.queryComplete = function(id) {102    delete this.queryList[id];103    // If no more outstanding queries, then fire transaction success104    if (this.successCallback) {105        var count = 0;106        var i;107        for (i in this.queryList) {108            if (this.queryList.hasOwnProperty(i)) {109                count++;110            }111        }112        if (count === 0) {113            try {114                this.successCallback();115            } catch (e) {116                console.log("Transaction error calling user success callback: " + e);117            }118        }119    }120};121/**122 * Mark query in transaction as failed.123 *124 * @param id125 *            Query id126 * @param reason127 *            Error message128 */129wpdb_Tx.prototype.queryFailed = function(id, reason) {130    // The sql queries in this transaction have already been run, since131    // we really don't have a real transaction implemented in native code.132    // However, the user callbacks for the remaining sql queries in transaction133    // will not be called.134    this.queryList = {};135    if (this.errorCallback) {136        try {137            this.errorCallback(reason);138        } catch (e) {139            console.log("Transaction error calling user error callback: " + e);140        }141    }142};143/**144 * Execute SQL statement145 *146 * @param sql147 *            SQL statement to execute148 * @param params149 *            Statement parameters150 * @param successCallback151 *            Success callback152 * @param errorCallback153 *            Error callback154 */155wpdb_Tx.prototype.executeSql = function(sql, params, successCallback, errorCallback) {156    // Init params array157    if (typeof params === 'undefined') {158        params = [];159    }160    // Create query and add to queue161    var query = new wpdb_Query(this);162    openDatabase.queryQueue[query.id] = query;163    // Save callbacks164    query.successCallback = successCallback;165    query.errorCallback = errorCallback;166    // Add native code call in the stack167    openDatabase.execPool.push(function(){168        cordova.exec(openDatabase.queryFinished, failQuery, "WebDatabase", "executeSql", [ sql, params, query.id ]);169    });170    if(openDatabase.canExecuteQuery()){171        openDatabase.executeQuery();172    }173};174var DatabaseShell = function() {175};176/**177 * Start a transaction. Does not support rollback in event of failure.178 *179 * @param process180 *            {Function} The transaction function181 * @param successCallback182 *            {Function}183 * @param errorCallback184 *            {Function}185 */186DatabaseShell.prototype.transaction = function(process, errorCallback, successCallback) {187    var tx = new wpdb_Tx();188    tx.successCallback = successCallback;189    tx.errorCallback = errorCallback;190    try {191        process(tx);192    } catch (e) {193        console.log("Transaction error: " + e);194        if (tx.errorCallback) {195            try {196                tx.errorCallback(e);197            } catch (ex) {198                console.log("Transaction error calling user error callback: " + e);199            }200        }201    }202};203/**204 * Open database205 *206 * @param name207 *            Database name208 * @param version209 *            Database version210 * @param display_name211 *            Database display name212 * @param size213 *            Database size in bytes214 * @return Database object215 */216var openDatabase = function(name, version, display_name, size) {217    document.addEventListener('deviceready', function(){218        cordova.exec(openDatabase.databaseOpened, failQuery, "WebDatabase", "openDatabase", [ name, version, display_name, size ]);219    }, false);220    var db = new DatabaseShell();221    return db;222};223/**224 * SQL result set object PRIVATE METHOD225 *226 * @constructor227 */228var wpdb_Rows = function() {229    this.resultSet = []; // results array230    this.length = 0; // number of rows231};232/**233 * Get item from SQL result set234 *235 * @param row236 *            The row number to return237 * @return The row object238 */239wpdb_Rows.prototype.item = function(row) {240    return this.resultSet[row];241};242/**243 * SQL result set that is returned to user. PRIVATE METHOD244 *245 * @constructor246 */247var wpdb_Result = function() {248    this.rows = new wpdb_Rows();249};250/**251 * Callback from native code when query is complete. PRIVATE METHOD252 *253 * @param id254 *            Query id255 */256function completeQuery(id, data) {257    var query = openDatabase.queryQueue[id];258    if (query) {259        try {260            delete openDatabase.queryQueue[id];261            // Get transaction262            var tx = query.tx;263            // If transaction hasn't failed264            // Note: We ignore all query results if previous query265            // in the same transaction failed.266            if (tx && tx.queryList[id]) {267                // Save query results268                var r = new wpdb_Result();269                r.rows.resultSet = data;270                r.rows.length = data.length;271                try {272                    if (typeof query.successCallback === 'function') {273                        query.successCallback(query.tx, r);274                    }275                } catch (ex) {276                    console.log("executeSql error calling user success callback: " + ex);277                }278                tx.queryComplete(id);279            }280        } catch (e) {281            console.log("executeSql error: " + e);282        }283    }284}285openDatabase.execPool = new Array();286openDatabase.queryBeingExecuted = true;287openDatabase.canExecuteQuery = function(){288    return !openDatabase.queryBeingExecuted;289};290openDatabase.executeQuery = function(){291    var execFunction = openDatabase.execPool.shift();292    if(execFunction != undefined){293        openDatabase.queryBeingExecuted = true;294        execFunction();295    }296};297openDatabase.databaseOpened = function(id, data){298    openDatabase.queryBeingExecuted = false;299    openDatabase.executeQuery();300};301openDatabase.queryFinished = function(sqlResult){302    openDatabase.queryBeingExecuted = false;303    openDatabase.executeQuery();304    var id = sqlResult.id;305    var data = JSON.parse(sqlResult.data);306    completeQuery(id, data);307};308openDatabase.queryQueue = {};...

Using AI Code Generation

1var db = openDatabase('mydb', '1.0', 'Test DB', 2 * 1024 * 1024);2db.transaction(function (tx) {3    tx.executeSql('CREATE TABLE IF NOT EXISTS LOGS (id unique, log)');4    tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');5    tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');6});7db.transaction(function (tx) {8    tx.executeSql('SELECT * FROM LOGS', [], function (tx, results) {9        var len = results.rows.length, i;10        msg = "<p>Found rows: " + len + "</p>";11        document.querySelector('#status').innerHTML +=  msg;12        for (i = 0; i < len; i++){13            msg = "<p><b>" + results.rows.item(i).log + "</b></p>";14            document.querySelector('#status').innerHTML +=  msg;15        }16    }, null);17});

Using AI Code Generation

1var db = openDatabase("testDB", "1.0", "Test DB", 200000);2db.transaction(function(tx) {3 tx.executeSql('CREATE TABLE IF NOT EXISTS testTable (id unique, data)');4 tx.executeSql('INSERT INTO testTable (id, data) VALUES (1, "First row")');5 tx.executeSql('INSERT INTO testTable (id, data) VALUES (2, "Second row")');6});7db.transaction(function(tx) {8 tx.executeSql('SELECT * FROM testTable', [], function(tx, results) {9   var len = results.rows.length, i;10   for (i = 0; i < len; i++) {11     console.log(results.rows.item(i));12   }13 }, null);14});

Using AI Code Generation

1var db = openDatabase("testDB", "1.0", "Test Database for wptoolkit", 200000);2db.transaction(function(tx) {3	tx.executeSql('CREATE TABLE IF NOT EXISTS LOGS (id unique, log)');4	tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');5	tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');6});7db.transaction(function(tx) {8	tx.executeSql('SELECT * FROM LOGS', [], function(tx, rs) {9		for (var i = 0; i < rs.rows.length; i++) {10			console.log('Item ' + i + ': ' + rs.rows.item(i).log);11		}12	});13});14var db = openDatabase("testDB", "1.0", "Test Database for wptoolkit", 200000);15db.transaction(function(tx) {16	tx.executeSql('CREATE TABLE IF NOT EXISTS LOGS (id unique, log)');17	tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');18	tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');19});20db.transaction(function(tx) {21	tx.executeSql('SELECT * FROM LOGS', [], function(tx, rs) {22		for (var i = 0; i < rs.rows.length; i++) {23			console.log('Item ' + i + ': ' + rs.rows.item(i).log);24		}25	});26});27var db = openDatabase("testDB", "1.0", "Test Database for wptoolkit", 200000);28db.transaction(function(tx) {29	tx.executeSql('CREATE TABLE IF NOT EXISTS LOGS (id unique, log)');30	tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');31	tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');32});33db.transaction(function(tx) {34	tx.executeSql('SELECT * FROM LOGS', [], function

Using AI Code Generation

1var db = WPTK.openDatabase("testdb", "1.0", "Test DB", 2 * 1024 * 1024);2db.transaction(function (tx) {3    tx.executeSql('CREATE TABLE IF NOT EXISTS LOGS (id unique, log)');4});5db.transaction(function (tx) {6    tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');7    tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');8});9db.transaction(function (tx) {10    tx.executeSql('SELECT * FROM LOGS', [], function (tx, results) {11        var len = results.rows.length, i;12        msg = "<p>Found rows: " + len + "</p>";13        document.querySelector('#status').innerHTML +=  msg;14        for (i = 0; i < len; i++){15            console.log("Row = " + i + " ID = " + results.rows.item(i).id + " Data =  " + results.rows.item(i).log);16        }17    }, null);18});19db.transaction(function (tx) {20    tx.executeSql('DROP TABLE LOGS');21});22db.transaction(function (tx) {23    tx.executeSql('DROP DATABASE testdb');24});25db.transaction(function (tx) {26    tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');27    tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');28});29db.transaction(function (tx) {30    tx.executeSql('SELECT * FROM LOGS', [], function (tx, results) {31        var len = results.rows.length, i;32        msg = "<p>Found rows: " + len + "</p>";33        document.querySelector('#status').innerHTML +=  msg;34        for (i = 0; i < len; i++){35            console.log("Row = " + i + " ID = " + results.rows.item(i).id + " Data =  " + results.rows.item(i).log);36        }37    }, null);38});

Using AI Code Generation

1var db = openDatabase("Database", "1.0", "Test Database", 200000);2var msg;3if(!db){4  postMessage("error");5}else{6  postMessage("success");7}8var request = window.indexedDB.open("Database", 1);9var db;10request.onerror = function(event) {11  postMessage("error");12};13request.onsuccess = function(event) {14  db = event.target.result;15  postMessage("success");16};17var db = openDatabase("Database", "1.0", "Test Database", 200000);18var msg;19if(!db){20  postMessage("error");21}else{22  postMessage("success");23}24var db = openDatabase("Database", "1.0", "Test Database", 200000);25var msg;26if(!db){27  postMessage("error");28}else{29  postMessage("success");30}31var db = openDatabase("Database", "1.0", "Test Database", 200000);32var msg;33if(!db){34  postMessage("error");35}else{36  postMessage("success");37}38var db = openDatabase("Database", "1.0", "Test Database", 200000);39var msg;40if(!db){41  postMessage("error");42}else{43  postMessage("success");44}45var db = openDatabase("Database", "1.0", "Test Database", 200000);46var msg;47if(!db){48  postMessage("error");49}else{50  postMessage("success");51}52var db = openDatabase("Database", "1.0", "Test Database", 200000);53var msg;54if(!db){55  postMessage("error");56}else{57  postMessage("success");58}59var db = openDatabase("Database", "1.0", "Test Database", 200000);60var msg;61if(!db){62  postMessage("error");63}else{64  postMessage("success");65}

Using AI Code Generation

1var db = openDatabase("mydb", "1.0", "mydb", 200000);2db.transaction(function(tx) {3tx.executeSql('CREATE TABLE IF NOT EXISTS LOGS (id unique, log)');4tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');5tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');6});7var db = null;8var shortName = 'mydb';9var version = '1.0';10var displayName = 'mydb';11var maxSize = 200000;12db = openDatabase(shortName, version, displayName, maxSize);13db.transaction(function(tx) {14tx.executeSql('CREATE TABLE IF NOT EXISTS LOGS (id unique, log)');15tx.executeSql('INSERT INTO LOGS (id, log) VALUES (1, "foobar")');16tx.executeSql('INSERT INTO LOGS (id, log) VALUES (2, "logmsg")');17});18var db = null;19var shortName = 'mydb';20var version = '1.0';21var displayName = 'mydb';22var maxSize = 200000;23db = openDatabase(shortName, version, displayName, maxSize);24db.transaction(function(tx) {25tx.executeSql('SELECT * FROM LOGS', [], function(tx, results) {26var len = results.rows.length, i;27msg = "<p>Found rows: " + len + "</p>";28document.querySelector('#status').innerHTML +=  msg;29for (i = 0; i < len; i++){30msg = "<p><b>" + results.rows.item(i).log + "</b></p>";31document.querySelector('#status').innerHTML +=  msg;32}33}, null);34});35var db = null;36var shortName = 'mydb';37var version = '1.0';38var displayName = 'mydb';39var maxSize = 200000;40db = openDatabase(shortName, version, displayName, maxSize);41db.transaction(function(tx) {42tx.executeSql('DELETE FROM LOGS');

Using AI Code Generation

1var db = wptb.openDatabase("testdb", "1.0", "Test DB", 200000);2db.transaction(function (tx) {3    tx.executeSql('CREATE TABLE IF NOT EXISTS testtable (id unique, data)');4    tx.executeSql('INSERT INTO testtable (id, data) VALUES (1, "First row")');5    tx.executeSql('INSERT INTO testtable (id, data) VALUES (2, "Second row")');6    tx.executeSql('INSERT INTO testtable (id, data) VALUES (3, "Third row")');7    tx.executeSql('SELECT * FROM testtable', [], function (tx, results) {8        var len = results.rows.length, i;9        console.log("testtable: " + len + " rows found.");10        for (i = 0; i < len; i++) {11            console.log("Row = " + i + " ID = " + results.rows.item(i).id + " Data =  " + results.rows.item(i).data);12        }13    }, null);14    tx.executeSql('DELETE FROM testtable');15    tx.executeSql('DROP TABLE testtable');16    tx.executeSql('DROP DATABASE testdb');17    db.close();18});

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