Cordova/PhoneGap sqlite storage - premium enterprise version with legacy support for internal memory improvements and other enhancements
Native interface to sqlite in a Cordova/PhoneGap plugin for Android, iOS, macOS, and Windows 8.1(+)/Windows Phone 8.1(+) with API similar to HTML5/Web SQL API.
This version is available under GPL v3 (http://www.gnu.org/licenses/gpl.txt) or premium commercial license.
TBD: no Circle CI or Travis CI working in this version branch.
NOTE: Commercial licenses for Cordova-sqlite-enterprise-free purchased before July 2016 are valid for this version. Commercial licenses for Cordova-sqlite-evcore versions are not valid for this version.
This version is in legacy maintenance status. Only security and extremely critical bug fixes will be considered.
The location
or iosDatabaseLocation
must be specified in the openDatabase
and deleteDatabase
calls, as documented below.
As documented in the "A User’s iCloud Storage Is Limited" section of iCloudFundamentals in Mac Developer Library iCloud Design Guide (near the beginning):
- iCloudFundamentals in Mac Developer Library iCloud Design Guide
- DO store the following in iCloud:
- [other items omitted]
- Change log files for a SQLite database (a SQLite database’s store file must never be stored in iCloud)
- DO NOT store the following in iCloud:
- [items omitted]
Use the location
or iosDatabaseLocation
option in sqlitePlugin.openDatabase()
to store the database in a subdirectory that is NOT backed up to iCloud, as described in the section below.
NOTE: Changing BackupWebStorage
in config.xml
has no effect on a database created by this plugin. BackupWebStorage
applies only to local storage and/or Web SQL storage created in the WebView (not using this plugin). For reference: phonegap/build#338 (comment)
- Multi-page apps are NOT supported by this plugin version and will not work on any platform ref: litehelpers / cordova-sqlite-evplus-ext-legacy-build-free#5. FUTURE TBD may be supported in this plugin version with workaround solution to Cordova-sqlite-storage BUG 666 (someday).
- cordova-android@7 is NOT supported, recommended to use cordova-android@6 instead
- cordova-windows@5 is NOT supported, recommended to use cordova-windows@4 instead
- The iOS database location is now mandatory, as documented below.
- Patches patches will NOT be accepted on this project due to potential licensing issues.
- omitted from this version branch: WP(7/8)
- Amazon Fire-OS is dropped due to lack of support by Cordova. Android version should be used to deploy to Fire-OS 5.0(+) devices ref: cordova/cordova-discuss#32 (comment)
- Windows "Universal" for Windows 8.0/8.1(+) and Windows Phone 8.1(+) version is in an alpha state:
- Issue with UNICODE
\u0000
character (same as\0
) - No background processing (for future consideration)
- You may encounter issues with Cordova CLI due to CB-8866. Old workaround: you can install using litehelpers / cordova-windows-nufix and
plugman
as described below. - In addition, problems with the Windows "Universal" version have been reported in case of a Cordova project using a Visual Studio template/extension instead of Cordova/PhoneGap CLI or
plugman
- Not tested with a Windows 10 (or Windows Phone 10) target; Windows 10 build is not expected to work with Windows Phone
- Issue with UNICODE
- Status for the other target platforms:
- Android: now using Android-sqlite-connector (with sqlite
3.8.10.2
), with support for FTS3/FTS4 and R-Tree, and REGEXP support using PCRE 8.37 as built from liteglue / Android-sqlite-native-driver-regexp-pcre - iOS/macOS: sqlite
3.8.10.2
embedded
- Android: now using Android-sqlite-connector (with sqlite
- Android is supported back to SDK 10 (a.k.a. Gingerbread, Android 2.3.3); support for older versions is available upon request.
- API to open the database may be changed somewhat to be more streamlined. Transaction and single-statement query API will NOT be changed.
- Resolved Java 6/7/8 concurrent map compatibility issue reported in litehelpers/Cordova-sqlite-storage#726, THANKS to pointer by @NeoLSN (Jason Yang/楊朝傑) in litehelpers/Cordova-sqlite-storage#727.
- Fixed iOS/macOS platform version to use PSPDFThreadSafeMutableDictionary.m to avoid threading issue ref: litehelpers/Cordova-sqlite-storage#716
- More explicit
openDatabase
anddeleteDatabase
iosDatabaseLocation
option - Pre-populated database support for Android, iOS, macOS,
and Windows "Universal" (broken), usage described below - REGEXP is now supported for Android and iOS/macOS platforms.
- This version has the following improvement(s):
- iOS/macOS platform version can now handle all UNICODE characters, using URI encoding as a workaround for Cordova bug CB-9435.
- Multi-part transactions API (described below)
- Error result with proper Web SQL
code
member andsqliteCode
as reported by the SQLite C library (Android/iOS) - flat JSON interface between Javascript and native parts
- optional: transaction sql chunking, which can be enabled by changing the
MAX_SQL_CHUNK
value in SQLitePlugin.js
- A version with support for web workers is available at: litehelpers / Cordova-sqlite-evplus-legacy-workers-free
- All iOS/macOS operations are now using background processing (reported to resolve intermittent problems with cordova-ios@4.0.1)
- Published brodybits / Cordova-quick-start-checklist and brodybits / Cordova-troubleshooting-guide
- PhoneGap Build is now supported through the npm package: http://phonegap.com/blog/2015/05/26/npm-plugins-available/
- MetaMemoryT / websql-promise now provides a Promises-based interface to both Web SQL and this plugin -- iOS/macOS platform version is now fixed to override the correct pluginInitialize method and should work with recent versions of iOS
- New
openDatabase
anddeleteDatabase
location
option to select database location (iOS/macOS only) and disable iCloud backup - Fixes to work with PouchDB by @nolanlawson
- Drop-in replacement for HTML5/Web SQL API: the only change should be to replace the static
window.openDatabase()
factory call withwindow.sqlitePlugin.openDatabase()
, with parameters as documented below. (NOTE: Some known deviations are described below). - Failure-safe nested transactions with batch processing optimizations (according to HTML5/Web SQL API)
- FTS3, FTS4, and R-Tree support is tested working OK in this version
- As described in this posting:
- Keeps sqlite database in a user data location that is known; can be reconfigured (iOS/macOS platform version); may be synchronized to iCloud (iOS platform version).
- No 5MB maximum, more information at: http://www.sqlite.org/limits.html
- Pre-populated openDatabase option (usage described below)
- REDCap Mobile App (part of Project REDCap Software for data collection)
TBD your app here
- The
window.sqlitePlugin.openDatabase
static factory call takes a different set of parameters than the standard Web SQLwindow.openDatabase
static factory call. In case you have to use existing Web SQL code with no modifications please see the Web SQL replacement tip below. - This plugin does not support the database creation callback or standard database versions. Please read the Database schema versions section below for tips on how to support database schema versioning.
- This plugin does not support the synchronous Web SQL interfaces.
- Error reporting is not 100% compliant, with some issues described below.
- In case of a transaction with an sql statement error for which there is no error handler, the error handler does not return
false
, or the error handler throws an exception, the plugin will fire more sql statement callbacks before the transaction is aborted with ROLLBACK. - This plugin supports some non-standard features as described below.
- iOS/macOS platform version does not support certain rapidly repeated open-and-close or open-and-delete test scenarios due to how the implementation handles background processing
- As described below, auto-vacuum is NOT enabled by default.
- A stability issue was reported on the iOS version when in use together with SockJS client such as pusher-js at the same time (see litehelpers/Cordova-sqlite-storage#196). The workaround is to call sqlite functions and SockJS client functions in separate ticks (using setTimeout with 0 timeout).
- If a sql statement fails for which there is no error handler or the error handler does not return
false
to signal transaction recovery, the plugin fires the remaining sql callbacks before aborting the transaction. - In case of an error, the error
code
member is bogus on Windows (fixed for Android in this version). - Possible crash on Android when using Unicode emoji characters due to Android bug 81341, which should be fixed in Android 6.x
- In-memory database
db=window.sqlitePlugin.openDatabase({name: ":memory:"})
is currently not supported. - Pre-populated database is known to be BROKEN on Windows in this version.
- Close/delete database bugs described below.
- When a database is opened and deleted without closing, the iOS/macOS platform version is known to leak resources.
- It is NOT possible to open multiple databases with the same name but in different locations (iOS/macOS platform version).
- Problems reported with PhoneGap Build in the past:
- PhoneGap Build Hydration.
- Apparently FIXED:
For some reason, PhoneGap Build may fail to build the iOS version unless the name of the app starts with an uppercase and contains no spaces (see #243; Wizcorp/phonegap-facebook-plugin#830; phonegap/build#431).
- The db version, display name, and size parameter values are not supported and will be ignored.
- Absolute and relative subdirectory path(s) are not tested or supported.
- This plugin will not work before the callback for the 'deviceready' event has been fired, as described in Usage. (This is consistent with the other Cordova plugins.)
- This version will not work within a web worker (not properly supported by the Cordova framework). Version with support for web workers, along with the memory and iOS/macOS Unicode character fixes from this project at: litehelpers / Cordova-sqlite-evplus-legacy-workers-free
- REGEXP is missing for Windows (for future consideration) and has different regex implementations for Android and iOS/macOS.
- In-memory database
db=window.sqlitePlugin.openDatabase({name: ":memory:"})
is currently not supported. - The Android version cannot work with more than 100 open db files (due to the threading model used).
- Blob type is currently not supported and known to be broken on multiple platforms.
- UNICODE
\u0000
(same as\0
) character not working in Android or Windows/Windows Phone (8.1/XX) - Case-insensitive matching and other string manipulations on Unicode characters, which is provided by optional ICU integration in the sqlite source and working with recent versions of Android, is not supported for any target platforms.
- iOS/macOS platform version uses a thread pool but with only one thread working at a time due to "synchronized" database access
- Large query result can be slow, also due to JSON implementation
- ATTACH another database file is not supported. Version with support for ATTACH, along with the memory and iOS/macOS Unicode character fixes from this project (Android error fix currently missing) at: litehelpers / Cordova-sqlite-evplus-legacy-ext-free
- User-defined savepoints are not supported and not expected to be compatible with the transaction locking mechanism used by this plugin. In addition, the use of BEGIN/COMMIT/ROLLBACK statements is not supported.
- Problems have been reported when using this plugin with Crosswalk (for Android). It may help to install Crosswalk as a plugin instead of using Crosswalk to create the project.
- Does not work with axemclion / react-native-cordova-plugin since the
window.sqlitePlugin
object is not proprly exported (ES5 feature). It is recommended to use andpor / react-native-sqlite-storage for SQLite database access with React Native Android/iOS instead.
- Multi-page apps
- Use within InAppBrowser
- Use within an iframe (see litehelpers/Cordova-sqlite-storage#368 (comment))
- Actual behavior when using SAVEPOINT(s)
R-Tree is not tested for all older releases of Android in case Android-sqlite-connector is disabled (using theandroidDatabaseImplementation
option inwindow.sqlitePlugin.openDatabase
)- UNICODE characters not fully tested
- Use with TRIGGER(s), JOIN and ORDER BY RANDOM
- TODO add some more REGEXP tests
- UPDATE/DELETE with LIMIT or ORDER BY (newer Android/iOS versions)
- Integration with JXCore for Cordova (must be built without sqlite(3) built-in)
- Delete an open database inside a statement or transaction callback.
- If you run into problems and your code follows the asynchronous HTML5/Web SQL transaction API, you can try opening a test database using
window.openDatabase
and see if you get the same problems. - In case your database schema may change, it is recommended to keep a table with one row and one column to keep track of your own schema version number. It is possible to add it later. The recommended schema update procedure is described below.
- It is NOT allowed to execute sql statements on a transaction following the HTML5/Web SQL API, as described below.
- Not in this version branch:
It is possible to make a Windows Phone 8.1 project using either thewindows
platform or thewp8
platform. Thewindows
platform is highly recommended overwp8
whenever possible. Also, some plugins only supportwindows
and some plugins support onlywp8
. - The plugin class name starts with "SQL" in capital letters, but in Javascript the
sqlitePlugin
object name starts with "sql" in small letters. - Attempting to open a database before receiving the 'deviceready' event callback.
- Inserting STRING into ID field
- Auto-vacuum is NOT enabled by default. It is recommended to periodically VACUUM the database.
- intent whitelist: blocked intent such as external URL intent may cause this and perhaps certain Cordova plugin(s) to misbehave (see litehelpers/Cordova-sqlite-storage#396)
- Angular/ngCordova/Ionic controller/factory/service callbacks may be triggered before the 'deviceready' event is fired
- As discussed in litehelpers/Cordova-sqlite-storage#355, it may be necessary to install ionic-plugin-keyboard
- Integrate with IndexedDBShim and some other libraries such as Sequelize, Squel.js, WebSqlSync, Persistence.js, Knex, etc.
- litehelpers / Cordova-sqlite-evplus-legacy-ext-free - version with support for ATTACH (Windows support missing), includes the memory and iOS Unicode character fixes from this project
- litehelpers / Cordova-sqlite-evplus-legacy-workers-free - version with support for web workers (Android and iOS only), includes the memory and iOS Unicode character fixes from this project
- litehelpers / Cordova-sqlite-storage - Cordova sqlite storage plugin with permissive licensing terms
- litehelpers / Cordova-sqlcipher-adapter - supports SQLCipher for Android, iOS, and Windows (8.1) (with permissive licensing terms)
- Adaptation for React Native Android and iOS: andpor / react-native-sqlite-storage
- Original version for iOS (with a slightly different transaction API): davibe / Phonegap-SQLitePlugin
- object-layer / AnySQL - Unified SQL API over multiple database engines
- an-rahulpandey / cordova-plugin-dbcopy - (Alternative way to) add support for pre-populated database
- Simpler sqlite plugin with a simpler API: samikrc / CordovaSQLite
- EionRobb / phonegap-win8-sqlite - WebSQL add-on for Win8/Metro apps (perhaps with a different API), using an old version of the C++ library from SQLite3-WinRT Component (as referenced by 01org / cordova-win8)
- SQLite3-WinRT Component - C++ component that provides a nice SQLite API with promises for WinJS
- 01org / cordova-win8 - old, unofficial version of Cordova API support for Windows 8 Metro that includes an old version of the C++ SQLite3-WinRT Component
- MSOpenTech / cordova-plugin-websql - Windows 8(+) and Windows Phone 8(+) WebSQL plugin versions in C#
- Thinkwise / cordova-plugin-websql - fork of MSOpenTech / cordova-plugin-websql that supports asynchronous execution
- MetaMemoryT / websql-client - provides the same API and connects to websql-server through WebSockets.
- ABB-Austin / cordova-plugin-indexeddb-async - Asynchronous IndexedDB plugin for Cordova that uses axemclion / IndexedDBShim (Browser/iOS/Android/Windows) and Thinkwise / cordova-plugin-websql - (Windows)
- Another sqlite binding for React-Native (iOS version): almost/react-native-sqlite
- Use NativeScript with its web view and [NathanaelA / nativescript-sqlite](https://github.com/Natha naelA/nativescript-sqlite) (Android and/or iOS)
- Standard HTML5 local storage
- Realm.io
The idea is to emulate the HTML5/Web SQL API as closely as possible. The only major change is to use window.sqlitePlugin.openDatabase()
(or sqlitePlugin.openDatabase()
) with parameters as documented below instead of window.openDatabase()
. If you see any other major change please report it, it is probably a bug.
NOTE: If a sqlite statement in a transaction fails with an error, the error handler must return false
in order to recover the transaction. This is correct according to the HTML5/Web SQL API standard. This is different from the WebKit implementation of Web SQL in Android and iOS which recovers the transaction if a sql error hander returns a non-true
value.
To open a database access handle object (in the new default location):
var db = window.sqlitePlugin.openDatabase({name: 'my.db', location: 'default'}, successcb, errorcb);
WARNING: The new "default" location value is NOT the same as the old default location and would break an upgrade for an app that was using the old default value (0) on iOS.
To specify a different location (affects iOS/macOS only):
var db = window.sqlitePlugin.openDatabase({name: 'my.db', iosDatabaseLocation: 'Library'}, successcb, errorcb);
where the iosDatabaseLocation
option may be set to one of the following choices:
default
:Library/LocalDatabase
subdirectory - NOT visible to iTunes and NOT backed up by iCloudLibrary
:Library
subdirectory - backed up by iCloud, NOT visible to iTunesDocuments
:Documents
subdirectory - visible to iTunes and backed up by iCloud
WARNING: Again, the new "default" iosDatabaseLocation value is NOT the same as the old default location and would break an upgrade for an app using the old default value (0) on iOS.
ALTERNATIVE (deprecated):
var db = window.sqlitePlugin.openDatabase({name: "my.db", location: 1}, successcb, errorcb);
with the location
option set to one the following choices (affects iOS/macOS only):
0
(default):Documents
- visible to iTunes and backed up by iCloud1
:Library
- backed up by iCloud, NOT visible to iTunes2
:Library/LocalDatabase
- NOT visible to iTunes and NOT backed up by iCloud (same as using "default")
No longer supported (see tip below to overwrite window.openDatabase
): var db = window.sqlitePlugin.openDatabase("myDatabase.db", "1.0", "Demo", -1);
IMPORTANT: Please wait for the 'deviceready' event, as in the following example:
// Wait for Cordova to load
document.addEventListener('deviceready', onDeviceReady, false);
// Cordova is ready
function onDeviceReady() {
var db = window.sqlitePlugin.openDatabase({name: 'my.db', location: 'default'});
// ...
}
The successcb and errorcb callback parameters are optional but can be extremely helpful in case anything goes wrong. For example:
window.sqlitePlugin.openDatabase({name: 'my.db', location: 'default'}, function(db) {
db.transaction(function(tx) {
// ...
}, function(err) {
console.log('Open database ERROR: ' + JSON.stringify(err));
});
});
If any sql statements or transactions are attempted on a database object before the openDatabase result is known, they will be queued and will be aborted in case the database cannot be opened.
OTHER NOTES:
- The database file name should include the extension, if desired.
- It is possible to open multiple database access handle objects for the same database.
- The database handle access object can be closed as described below.
TIP:
To overwrite window.openDatabase
:
window.openDatabase = function(dbname, ignored1, ignored2, ignored3) {
return window.sqlitePlugin.openDatabase({name: dbname, location: 'default'});
};
Put the database file in the www
directory and open the database like (both database location and createFromLocation
items are required):
var db = window.sqlitePlugin.openDatabase({name: "my.db", location: 'default', createFromLocation: 1});
IMPORTANT NOTES:
- Put the pre-populated database file in the
www
subdirectory. (This should work well the Cordova CLI.) - The pre-populated database file name must match exactly the file name given in
openDatabase
. This plugin does not use an automatic extension. - The pre-populated database file is ignored if the database file with the same name already exists in your database file location.
TIP: If you don't see the data from the pre-populated database file, completely remove your app and try it again!
Alternative: You can also use an-rahulpandey / cordova-plugin-dbcopy to install a pre-populated database
Samples and tutorials:
- Ionic starter template with pre-populated SQLite database at: jdnichollsc / Ionic-Starter-Template
- http://redwanhilali.com/ionic-sqlite/
- Tutorial using an-rahulpandey / cordova-plugin-dbcopy (alternative solution) (Android/iOS): https://blog.nraboy.com/2015/01/deploy-ionic-framework-app-pre-filled-sqlite-db/
- https://github.com/brodybits/Cordova-pre-populated-db-example-android (based on Cordova 2.7)
The following types of SQL transactions are supported by this version:
- Single-statement transactions
- Standard asynchronous transactions
- Multi-part transactions
Sample (with both success and error callbacks):
db.executeSql("SELECT LENGTH('tenletters') AS stringlength", [], function (res) {
console.log('got stringlength: ' + res.rows.item(0).stringlength);
}, function(error) {
console.log('SELECT error: ' + error.message);
});
Standard asynchronous transactions follow the HTML5/Web SQL API which is very well documented and uses BEGIN and COMMIT or ROLLBACK to keep the transactions failure-safe. Here is a very simple example from the test suite (with success and error callbacks):
db.transaction(function(tx) {
tx.executeSql("SELECT UPPER('Some US-ASCII text') AS uppertext", [], function(tx, res) {
console.log("res.rows.item(0).uppertext: " + res.rows.item(0).uppertext);
}, function(tx, error) {
console.log('SELECT error: ' + error.message);
});
}, function(error) {
console.log('transaction error: ' + error.message);
}, function() {
console.log('transaction ok');
});
In case of a read-only transaction, it is possible to use readTransaction
which will not use BEGIN, COMMIT, or ROLLBACK:
db.readTransaction(function(tx) {
tx.executeSql("SELECT UPPER('Some US-ASCII text') AS uppertext", [], function(tx, res) {
console.log("res.rows.item(0).uppertext: " + res.rows.item(0).uppertext);
}, function(tx, error) {
console.log('SELECT error: ' + error.message);
});
}, function(error) {
console.log('transaction error: ' + error.message);
}, function() {
console.log('transaction ok');
});
NOTICE: The tx.executeSql
success and error callbacks should take two parameters (first parameter for the transaction object). This is different from the single-statement success and error callbacks described above.
WARNING: It is NOT allowed to execute sql statements on a transaction after it has finished. Here is an example from my Populating Cordova SQLite storage with the JQuery API post:
// BROKEN SAMPLE:
db.executeSql("DROP TABLE IF EXISTS tt");
db.executeSql("CREATE TABLE tt (data)");
db.transaction(function(tx) {
$.ajax({
url: 'https://api.github.com/users/litehelpers/repos',
dataType: 'json',
success: function(res) {
console.log('Got AJAX response: ' + JSON.stringify(res));
$.each(res, function(i, item) {
console.log('REPO NAME: ' + item.name);
tx.executeSql("INSERT INTO tt values (?)", JSON.stringify(item.name));
});
}
});
}, function(e) {
console.log('Transaction error: ' + e.message);
}, function() {
// Check results:
db.executeSql('SELECT COUNT(*) FROM tt', [], function(res) {
console.log('Check SELECT result: ' + JSON.stringify(res.rows.item(0)));
});
});
You can find more details and a step-by-step description how to do this right in the Populating Cordova SQLite storage with the JQuery API post:
Sample (with success and error callbacks):
var tx = db.beginTransaction();
tx.executeSql("DROP TABLE IF EXISTS mytable");
tx.executeSql("CREATE TABLE mytable (myfield)");
tx.executeSql("INSERT INTO mytable values(?)", ['test value']);
tx.executeSql("SELECT * from mytable", [], function(tx, res) {
console.log("Got value: " + res.rows.item(0).myfield);
}, function(tx, e) {
console.log("Ignore unexpected error callback with message: " + e.message);
return false;
});
tx.end(function() {
console.log('Optional success callback fired');
}, function(e) {
console.log("Optional error callback fired with message: " + e.message);
});
Sample with abort:
var tx = db.beginTransaction();
tx.executeSql("INSERT INTO mytable values(?)", ['wrong data']);
tx.abort(function() {
console.log('Optional callback');
});
IMPORTANT NOTES:
- In case a
tx.executeSql
call results in an error and it does not have an error callback or the error callback does NOT returnfalse
, the transaction will be aborted immediately with a ROLLBACKupon the.tx.end
call - BUG: If a
tx.executeSql
call results in an error for which there is no error callback, the error callback does NOT returnfalse
, or the error callback throws an exception, the transaction is silently aborted and notx.end
callbacks will be fired. - When a multi-part transaction is started by the
db.beginTransaction
call, all other transactions are blocked until the multi-part transaction is either completed successfully or aborted (with a ROLLBACK).
The threading model depends on which version is used:
- For Android, one background thread per db;
- for iOS/macOS, background processing using a very limited thread pool (only one thread working at a time);
- for Windows "Universal" (8.1), no background processing (for future consideration).
First we create a table and add a single entry, then query the count to check if the item was inserted as expected. Note that a new transaction is created in the middle of the first callback.
// Wait for Cordova to load
document.addEventListener('deviceready', onDeviceReady, false);
// Cordova is ready
function onDeviceReady() {
var db = window.sqlitePlugin.openDatabase({name: "my.db"});
db.transaction(function(tx) {
tx.executeSql('DROP TABLE IF EXISTS test_table');
tx.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');
// demonstrate PRAGMA:
db.executeSql("pragma table_info (test_table);", [], function(res) {
console.log("PRAGMA res: " + JSON.stringify(res));
});
tx.executeSql("INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], function(tx, res) {
console.log("insertId: " + res.insertId + " -- probably 1");
console.log("rowsAffected: " + res.rowsAffected + " -- should be 1");
db.transaction(function(tx) {
tx.executeSql("select count(id) as cnt from test_table;", [], function(tx, res) {
console.log("res.rows.length: " + res.rows.length + " -- should be 1");
console.log("res.rows.item(0).cnt: " + res.rows.item(0).cnt + " -- should be 1");
});
});
}, function(e) {
console.log("ERROR: " + e.message);
});
});
}
NOTE: PRAGMA statements must be executed in executeSql()
on the database object (i.e. db.executeSql()
) and NOT within a transaction.
In this case, the same transaction in the first executeSql() callback is being reused to run executeSql() again.
// Wait for Cordova to load
document.addEventListener('deviceready', onDeviceReady, false);
// Cordova is ready
function onDeviceReady() {
var db = window.sqlitePlugin.openDatabase("Database", "1.0", "Demo", -1);
db.transaction(function(tx) {
tx.executeSql('DROP TABLE IF EXISTS test_table');
tx.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');
tx.executeSql("INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], function(tx, res) {
console.log("insertId: " + res.insertId + " -- probably 1");
console.log("rowsAffected: " + res.rowsAffected + " -- should be 1");
tx.executeSql("select count(id) as cnt from test_table;", [], function(tx, res) {
console.log("res.rows.length: " + res.rows.length + " -- should be 1");
console.log("res.rows.item(0).cnt: " + res.rows.item(0).cnt + " -- should be 1");
});
}, function(e) {
console.log("ERROR: " + e.message);
});
});
}
This case will also works with Safari (WebKit), assuming you replace window.sqlitePlugin.openDatabase
with window.openDatabase
.
db.close(successcb, errorcb);
It is OK to close the database within a transaction callback but NOT within a statement callback. The following example is OK:
db.transaction(function(tx) {
tx.executeSql("SELECT LENGTH('tenletters') AS stringlength", [], function(tx, res) {
console.log('got stringlength: ' + res.rows.item(0).stringlength);
});
}, function(error) {
// OK to close here:
console.log('transaction error: ' + error.message);
db.close();
}, function() {
// OK to close here:
console.log('transaction ok');
db.close(function() {
console.log('database is closed ok');
});
});
The following example is NOT OK:
// BROKEN:
db.transaction(function(tx) {
tx.executeSql("SELECT LENGTH('tenletters') AS stringlength", [], function(tx, res) {
console.log('got stringlength: ' + res.rows.item(0).stringlength);
// BROKEN - this will trigger the error callback:
db.close(function() {
console.log('database is closed ok');
}, function(error) {
console.log('ERROR closing database');
});
});
});
BUG 1: It is currently NOT possible to close a database in a db.executeSql
callback. For example:
// BROKEN DUE TO BUG:
db.executeSql("SELECT LENGTH('tenletters') AS stringlength", [], function (res) {
var stringlength = res.rows.item(0).stringlength;
console.log('got stringlength: ' + res.rows.item(0).stringlength);
// BROKEN - this will trigger the error callback DUE TO BUG:
db.close(function() {
console.log('database is closed ok');
}, function(error) {
console.log('ERROR closing database');
});
});
BUG 2: If multiple database access objects are opened for the same database and one database access object is closed, the database is no longer available for the other database access objects. Possible workarounds:
- It is still possible to open one or more new database access objects on a database that has been closed.
- It should be OK not to explicitly close a database handle since database transactions are ACID compliant and the app's memory resources are cleaned up by the system upon termination.
window.sqlitePlugin.deleteDatabase({name: "my.db", location: 1}, successcb, errorcb);
location
as described above for openDatabase
(iOS/macOS only)
The transactional nature of the API makes it relatively straightforward to manage a database schema that may be upgraded over time (adding new columns or new tables, for example). Here is the recommended procedure to follow upon app startup:
- Check your database schema version number (you can use
db.executeSql
since it should be a very simple query) - If your database needs to be upgraded, do the following within a single transaction to be failure-safe:
- Create your database schema version table (single row single column) if it does not exist (you can check the
sqlite_master
table as described at: http://stackoverflow.com/questions/1601151/how-do-i-check-in-sqlite-whether-a-table-exists) - Add any missing columns and tables, and apply any other changes necessary
- Create your database schema version table (single row single column) if it does not exist (you can check the
IMPORTANT: Since we cannot be certain when the users will actually update their apps, old schema versions will have to be supported for a very long time.
It is recommended to follow the tutorial at: https://blog.nraboy.com/2014/11/use-sqlite-instead-local-storage-ionic-framework/
Documentation at: http://ngcordova.com/docs/plugins/sqlite/
IMPORTANT: There are issues supporing certain Windows target platforms due to CB-8866:
- When using Visual Studio, the default target ("Mixed Platforms") will not work
- Problems have been with the Windows "Universal" version case of a Cordova project using a Visual Studio template/extension instead of Cordova/PhoneGap CLI or
plugman
Old workaround: As an alternative, which will support the ("Mixed Platforms") target, you can use plugman
instead with litehelpers / cordova-windows-nufix, as described here.
- make sure you have the latest version of
plugman
installed:npm install -g plugman
- Download the cordova-windows-nufix 3.9.0-nufixpre-01 zipball (or you can clone litehelpers / cordova-windows-nufix instead)
- Create your Windows "Universal" (8.1) project using litehelpers / cordova-windows-nufix:
path.to.cordova-windows-nufix/bin/create.bat your_app_path your.app.id YourAppName
cd your_app_path
and install plugin usingplugman
:plugman install --platform windows --project . --plugin https://github.com/litehelpers/Cordova-sqlite-evplus-legacy-free
- Put your sql program in your project
www
(don't forget to reference it fromwww\index.html
and wait fordeviceready
event)
Then your project in CordovaApp.sln
should work with "Mixed Platforms" on both Windows 8.1 and Windows Phone 8.1.
npm install -g cordova # if you don't have cordova
cordova create MyProjectFolder com.my.project MyProject && cd MyProjectFolder # if you are just starting
cordova plugin add https://github.com/litehelpers/Cordova-sqlite-evplus-legacy-free
You can find more details at this writeup.
WARNING: for Windows target platform please read the section below.
IMPORTANT: sometimes you have to update the version for a platform before you can build, like: cordova prepare ios
NOTE: If you cannot build for a platform after cordova prepare
, you may have to remove the platform and add it again, such as:
cordova platform rm ios
cordova platform add ios
plugman install --platform MYPLATFORM --project path.to.my.project.folder --plugin https://github.com/litehelpers/Cordova-sqlite-evplus-legacy-free
where MYPLATFORM is android
, ios
, or windows
.
A posting how to get started developing on Windows host without the Cordova CLI tool (for Android target only) is available here.
SQLitePlugin.coffee.md
: platform-independent (Literate coffee-script, can be read by recent coffee-script compiler)www
:SQLitePlugin.js
platform-independent Javascript as generated fromSQLitePlugin.coffee.md
(and checked in!)src
: platform-specific source code:external
- placeholder for external dependencies - not needed in this version branchcommon
- common dependencies:sqlite3.[hc]
(needed to build iOS/macOS and Windows platform versions)android
- Java plugin code for Androidios
- Objective-C plugin code for iOS/macOS;windows
- Javascript proxy code and SQLite3-WinRT project for Windows "Universal" (8.1);
spec
: test suite using Jasmine (2.2.0), ported from QUnittest-www
test suite, working on all platformstests
: very simple Jasmine test suite that is run on Circle CI (Android version) and Travis CI (iOS version)Lawnchair-adapter
: Lawnchair adaptor, based on the version from the Lawnchair repository, with the basic Lawnchair test suite intest-www
subdirectory
These installation instructions are based on the Android example project from Cordova/PhoneGap 2.7.0, using the lib/android/example
subdirectory from the PhoneGap 2.7 zipball.
- Install
SQLitePlugin.js
fromwww
intoassets/www
- Install
SQLitePlugin.java
fromsrc/android/io/liteglue
intosrc/io/liteglue
subdirectory - Install the
libs
subtree fromcommon
withsqlite-connector.jar
andsqlite-native-driver.jar
into your Android project - Add the plugin element
<plugin name="SQLitePlugin" value="io.liteglue.SQLitePlugin"/>
tores/xml/config.xml
Sample change to res/xml/config.xml
for Cordova/PhoneGap 2.x:
--- config.xml.orig 2015-04-14 14:03:05.000000000 +0200
+++ res/xml/config.xml 2015-04-14 14:08:08.000000000 +0200
@@ -36,6 +36,7 @@
<preference name="useBrowserHistory" value="true" />
<preference name="exit-on-suspend" value="false" />
<plugins>
+ <plugin name="SQLitePlugin" value="io.liteglue.SQLitePlugin"/>
<plugin name="App" value="org.apache.cordova.App"/>
<plugin name="Geolocation" value="org.apache.cordova.GeoBroker"/>
<plugin name="Device" value="org.apache.cordova.Device"/>
Before building for the first time, you have to update the project with the desired version of the Android SDK with a command like:
android update project --path $(pwd) --target android-19
(assuming Android SDK 19, use the correct desired Android SDK number here)
NOTE: using this plugin on Cordova pre-3.0 requires the following changes to SQLitePlugin.java
:
diff -u Cordova-sqlite-storage/src/android/io/liteglue/SQLitePlugin.java src/io/liteglue/SQLitePlugin.java
--- Cordova-sqlite-storage/src/android/io/liteglue/SQLitePlugin.java 2015-04-14 14:05:01.000000000 +0200
+++ src/io/liteglue/SQLitePlugin.java 2015-04-14 14:10:44.000000000 +0200
@@ -22,8 +22,8 @@
import java.util.regex.Matcher;
import java.util.regex.Pattern;
-import org.apache.cordova.CallbackContext;
-import org.apache.cordova.CordovaPlugin;
+import org.apache.cordova.api.CallbackContext;
+import org.apache.cordova.api.CordovaPlugin;
import org.json.JSONArray;
import org.json.JSONException;
In the Project "Build Phases" tab, select the first "Link Binary with Libraries" dropdown menu and add the library libsqlite3.dylib
or libsqlite3.0.dylib
.
NOTE: In the "Build Phases" there can be multiple "Link Binary with Libraries" dropdown menus. Please select the first one otherwise it will not work.
- Copy
SQLitePlugin.[hm]
fromsrc/ios
into your project Plugins folder and add them in XCode (I always just have "Create references" as the option selected). - Copy
SQLitePlugin.js
fromwww
into your projectwww
folder - Enable the SQLitePlugin in
config.xml
Sample change to config.xml
for Cordova/PhoneGap 2.x:
--- config.xml.old 2013-05-17 13:18:39.000000000 +0200
+++ config.xml 2013-05-17 13:18:49.000000000 +0200
@@ -39,6 +39,7 @@
<content src="index.html" />
<plugins>
+ <plugin name="SQLitePlugin" value="SQLitePlugin" />
<plugin name="Device" value="CDVDevice" />
<plugin name="Logger" value="CDVLogger" />
<plugin name="Compass" value="CDVLocation" />
Described above.
Assuming your app has a recent template as used by the Cordova create script, add the following code to the onDeviceReady
function, after app.receivedEvent('deviceready');
:
window.sqlitePlugin.openDatabase({ name: 'hello-world.db' }, function (db) {
db.executeSql("select length('tenletters') as stringlength", [], function (res) {
var stringlength = res.rows.item(0).stringlength;
console.log('got stringlength: ' + stringlength);
document.getElementById('deviceready').querySelector('.received').innerHTML = 'stringlength: ' + stringlength;
});
});
Make a change like this to index.html (or use the sample code) verify proper installation:
--- index.html.old 2012-08-04 14:40:07.000000000 +0200
+++ assets/www/index.html 2012-08-04 14:36:05.000000000 +0200
@@ -24,7 +24,35 @@
<title>PhoneGap</title>
<link rel="stylesheet" href="master.css" type="text/css" media="screen" title="no title">
<script type="text/javascript" charset="utf-8" src="cordova-2.0.0.js"></script>
- <script type="text/javascript" charset="utf-8" src="main.js"></script>
+ <script type="text/javascript" charset="utf-8" src="SQLitePlugin.js"></script>
+
+
+ <script type="text/javascript" charset="utf-8">
+ document.addEventListener("deviceready", onDeviceReady, false);
+ function onDeviceReady() {
+ var db = window.sqlitePlugin.openDatabase("Database", "1.0", "Demo", -1);
+
+ db.transaction(function(tx) {
+ tx.executeSql('DROP TABLE IF EXISTS test_table');
+ tx.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');
+
+ tx.executeSql("INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], function(tx, res) {
+ console.log("insertId: " + res.insertId + " -- probably 1"); // check #18/#38 is fixed
+ alert("insertId: " + res.insertId + " -- should be valid");
+
+ db.transaction(function(tx) {
+ tx.executeSql("SELECT data_num from test_table;", [], function(tx, res) {
+ console.log("res.rows.length: " + res.rows.length + " -- should be 1");
+ alert("res.rows.item(0).data_num: " + res.rows.item(0).data_num + " -- should be 100");
+ });
+ });
+
+ }, function(e) {
+ console.log("ERROR: " + e.message);
+ });
+ });
+ }
+ </script>
</head>
<body onload="init();" id="stage" class="theme">
If you have an issue with the plugin please check the following first:
- You are using the latest version of the Plugin Javascript & platform-specific Java or Objective-C source from this repository.
- You have installed the Javascript & platform-specific Java or Objective-C correctly.
- You have included the correct version of the cordova Javascript and SQLitePlugin.js and got the path right.
- You have registered the plugin properly in
config.xml
.
If you still cannot get something to work, please create a fresh, clean Cordova project, add this plugin according to the instructions above, and try a simple test program.
If you continue to see the issue in a new, clean Cordova project:
- Make the simplest test program you can to demonstrate the issue, including the following characteristics:
- it completely self-contained, i.e. it is using no extra libraries beyond cordova & SQLitePlugin.js;
- if the issue is with adding data to a table, that the test program includes the statements you used to open the database and create the table;
- if the issue is with retrieving data from a table, that the test program includes the statements you used to open the database, create the table, and enter the data you are trying to retrieve.
Then you can raise the new issue.
You may contact info@litehelpers.net
Unit testing is done in spec
.
To run the tests from *nix shell, simply do either:
./bin/test.sh ios
or for Android:
./bin/test.sh android
To run from a windows powershell (here is a sample for android target):
.\bin\test.ps1 android
BROKEN: The Lawnchair adapter does not support the openDatabase
options such as location
or iosDatabaseLocation
options and is therefore not expected to work with this plugin.
Please look at the Lawnchair-adapter
tree that contains a common adapter, which should also work with the Android version, along with a test-www directory.
Include the following Javascript files in your HTML:
cordova.js
(don't forget!)lawnchair.js
(you provide)SQLitePlugin.js
(in case of Cordova pre-3.0)Lawnchair-sqlitePlugin.js
(must come afterSQLitePlugin.js
in case of Cordova pre-3.0)
The name
option determines the sqlite database filename, with no extension automatically added. Optionally, you can change the db filename using the db
option.
In this example, you would be using/creating a database with filename kvstore
:
kvstore = new Lawnchair({name: "kvstore"}, function() {
// do stuff
);
Using the db
option you can specify the filename with the desired extension and be able to create multiple stores in the same database file. (There will be one table per store.)
recipes = new Lawnchair({db: "cookbook", name: "recipes", ...}, myCallback());
ingredients = new Lawnchair({db: "cookbook", name: "ingredients", ...}, myCallback());
KNOWN ISSUE: the new db options are not supported by the Lawnchair adapter. The workaround is to first open the database file using sqlitePlugin.openDatabase()
.
The adapter is now part of PouchDB thanks to @nolanlawson, see PouchDB FAQ.
NOTE: The PouchDB adapter has not been tested with the Android version which is using the new Android-sqlite-connector.
- Testimonials of apps that are using this plugin would be especially helpful.
- Reporting issues at litehelpers / Cordova-sqlite-evplus-legacy-free / issues can help improve the quality of this plugin.
NOTE: As stated above, patches will NOT be accepted on this project due to potential licensing issues. Issues with reproduction scenarios will help maintain and improve the quality of this plugin for future users. (It is also helpful if you have a pointer to the code that is causing the issue.)