Cordova/PhoneGap SQLitePlugin

Native interface to sqlite in a Cordova/PhoneGap plugin, working to follow the HTML5 Web SQL API as close as possible. NOTE that the API is now different from https://github.com/davibe/Phonegap-SQLitePlugin and is still undergoing some changes.

DISCLAIMER:

Created by @Joenoon:

Adapted to 1.5 by @coomsie

Android version by @marcucio and @chbrody

Major improvements for batch processing by @marcucio (Android version)

API changes by @chbrody

DISCLAIMER:

We are brand new to objective-c, so there could be problems with our code!

Usage

The idea is to emulate the HTML5 SQL API as closely as possible. The only major change is to use window.sqlitePlugin.openDatabase() (or sqlitePlugin.openDatabase()) instead of window.openDatabase(). If you see any other major change please report it, it is probably a bug.

Sample in Javascript:

// Wait for Cordova/PhoneGap to load
//
document.addEventListener("deviceready", onDeviceReady, false);

// Cordova/PhoneGap is ready
//
function onDeviceReady() {
    var db = window.sqlitePlugin.openDatabase("Database", "1.0", "PhoneGap Demo", 200000);

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)');


  return 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("rows.length: " + res.rows.length + " -- should be 1");
      return console.log("rows[0].cnt: " + res.rows.item(0).cnt + " -- should be 1");
    });

  }, function(e) {
    return console.log("ERROR: " + e.message);
  });
});
}

Installing

NOTE: There are now the following trees:

• Cordova-iOS for Cordova 1.5/1.6 iOS
• iOS-legacy-phonegap to support new API for PhoneGap 1.4- (cleanups by @marcucio)
• Android: new version by @marcucio, with improvements for batch transaction processing, testing seems OK

Cordova 1.6 (RC)

From @mineshaftgap: you have to make the following change to Cordova-iOS/build/SQLitePlugin.js:

diff --git a/Cordova-iOS/build/SQLitePlugin.js b/Cordova-iOS/build/SQLitePlugin.js
index 65cf62f..85649e4 100644
--- a/Cordova-iOS/build/SQLitePlugin.js
+++ b/Cordova-iOS/build/SQLitePlugin.js
@@ -1,6 +1,8 @@
 (function() {
   var SQLiteNative, SQLitePluginTransaction, callbacks, cbref, counter, getOptions, root;

+  window.Cordova = window.cordova;
+
   root = this;

   callbacks = {};

PhoneGap 1.3.0

For installing with PhoneGap 1.3.0: in iOS-legacy-phonegap/SQLitePlugin.h file change for PhoneGap's JSONKit.h implementation.

#ifdef PHONEGAP_FRAMEWORK
    #import <PhoneGap/PGPlugin.h>
    #import <PhoneGap/JSONKit.h>
    #import <PhoneGap/PhoneGapDelegate.h>
    #import <PhoneGap/File.h>
    #import<PhoneGap/FileTransfer.h>
#else
    #import "PGPlugin.h"
    #import "JSON.h"
    #import "PhoneGapDelegate.h"
    #import "File.h"
#endif

and in iOS-legacy-phonegap/SQLitePlugin.m JSONRepresentation must be changed to JSONString:

@@ -219,7 +219,7 @@
         if (hasInsertId) {
             [resultSet setObject:insertId forKey:@"insertId"];
         }
-        [self respond:callback withString:[resultSet JSONRepresentation] withType:@"success"];
+        [self respond:callback withString:[resultSet JSONString] withType:@"success"];
     }
 }

SQLite library

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.

Native SQLite Plugin

Drag .h and .m files into your project's Plugins folder (in xcode) -- I always just have "Create references" as the option selected.

Take the precompiled javascript file from build/, or compile the coffeescript file in src/ to javascript WITH the top-level function wrapper option (default).

Use the resulting javascript file in your HTML.

Look for the following to your project's Cordova.plist or PhoneGap.plist:

<key>Plugins</key>
<dict>
  ...
</dict>

Insert this in there:

<key>SQLitePlugin</key>
<string>SQLitePlugin</string>

Extra Usage

Cordova iOS

NOTE: These are from old samples, old API which is hereby deprecated.

Coffee Script

db = sqlitePlugin.openDatabase("my_sqlite_database.sqlite3")
db.executeSql('DROP TABLE IF EXISTS test_table')
db.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)')

db.transaction (tx) ->

  tx.executeSql "INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], (res) ->

    # success callback

    console.log "insertId: #{res.insertId} -- probably 1"
    console.log "rowsAffected: #{res.rowsAffected} -- should be 1"

    # check the count (not a part of the transaction)
    db.executeSql "select count(id) as cnt from test_table;", [], (res) ->
      console.log "rows.length: #{res.rows.length} -- should be 1"
      console.log "rows[0].cnt: #{res.rows[0].cnt} -- should be 1"

  , (e) ->

    # error callback

    console.log "ERROR: #{e.message}"

Plain Javascript

var db = sqlitePlugin.openDatabase("my_sqlite_database.sqlite3");

db.executeSql('DROP TABLE IF EXISTS test_table');
db.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');
db.transaction(function(tx) {
  return tx.executeSql("INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], function(res) {
    console.log("insertId: " + res.insertId + " -- probably 1");
    console.log("rowsAffected: " + res.rowsAffected + " -- should be 1");
    return db.executeSql("select count(id) as cnt from test_table;", [], function(res) {
      console.log("rows.length: " + res.rows.length + " -- should be 1");
      return console.log("rows[0].cnt: " + res.rows[0].cnt + " -- should be 1");
    });
  }, function(e) {
    return console.log("ERROR: " + e.message);
  });
});

Changes in tx.executeSql() success callback

    var db = sqlitePlugin.openDatabase("my_sqlite_database.sqlite3");
    db.executeSql('DROP TABLE IF EXISTS test_table');
    db.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');
    db.executeSql("INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], function(res) {
                  console.log("insertId: " + res.insertId + " -- probably 1");
                  console.log("rowsAffected: " + res.rowsAffected + " -- should be 1");
                  db.transaction(function(tx) {
                                 return tx.executeSql("select count(id) as cnt from test_table;", [], function(tx, res) {
                                                      console.log("rows.length: " + res.rows.length + " -- should be 1");
                                                      return console.log("rows.item(0).cnt: " + res.rows.item(0).cnt + " -- should be 1");
                                                      });
                                 });
                  });

iOS Legacy PhoneGap

Coffee Script

db = new PGSQLitePlugin("my_sqlite_database.sqlite3")
db.executeSql('DROP TABLE IF EXISTS test_table')
db.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)')

db.transaction (tx) ->

  tx.executeSql "INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], (res) ->

    # success callback

    console.log "insertId: #{res.insertId} -- probably 1"
    console.log "rowsAffected: #{res.rowsAffected} -- should be 1"

    # check the count (not a part of the transaction)
    db.executeSql "select count(id) as cnt from test_table;", (res) ->
      console.log "rows.length: #{res.rows.length} -- should be 1"
      console.log "rows[0].cnt: #{res.rows[0].cnt} -- should be 1"

  , (e) ->

    # error callback

    console.log "ERROR: #{e.message}"

Plain Javascript

var db;
db = new PGSQLitePlugin("my_sqlite_database.sqlite3");
db.executeSql('DROP TABLE IF EXISTS test_table');
db.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');
db.transaction(function(tx) {
  return 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");
    return db.executeSql("select count(id) as cnt from test_table;", [], function(res) {
      console.log("rows.length: " + res.rows.length + " -- should be 1");
      return console.log("rows[0].cnt: " + res.rows[0].cnt + " -- should be 1");
    });
  }, function(e) {
    return console.log("ERROR: " + e.message);
  });
});

Changes in tx.executeSql() success callback

    var db;
    db = new PGSQLitePlugin("my_sqlite_database.sqlite3");
    db.executeSql('DROP TABLE IF EXISTS test_table');
    db.executeSql('CREATE TABLE IF NOT EXISTS test_table (id integer primary key, data text, data_num integer)');
    db.executeSql("INSERT INTO test_table (data, data_num) VALUES (?,?)", ["test", 100], function(res) {
                  console.log("insertId: " + res.insertId + " -- probably 1");
                  console.log("rowsAffected: " + res.rowsAffected + " -- should be 1");
                  db.transaction(function(tx) {
                                 return tx.executeSql("select count(id) as cnt from test_table;", [], function(tx, res) {
                                                      console.log("rows.length: " + res.rows.length + " -- should be 1");
                                                      return console.log("rows[0].cnt: " + res.rows.item(0).cnt + " -- should be 1");
                                                      });
                                 });
                  });

Lawnchair Adapter Usage

Common adapter

Please look at the Lawnchair-adapter tree that contains a common adapter, working for both Android and iOS, along with a test-www directory.

Legacy: iOS/iPhone only

Include the following js files in your html:

• lawnchair.js (you provide)
• sqlite_plugin.js [pgsqlite_plugin.js in Legacy-PhoneGap-iPhone]
• lawnchair_sqlite_plugin_adapter.js [lawnchair_pgsqlite_plugin_adapter.js] (must come after sqlite_plugin.js [pgsqlite_plugin.js in Legacy-PhoneGap-iPhone])

The name option will determine the sqlite filename. Optionally, you can change it using the db option.

In this example, you would be using/creating the database at: Documents/kvstore.sqlite3 (all db's in SQLitePlugin are in the Documents folder)

kvstore = new Lawnchair { name: "kvstore", adapter: SQLitePlugin.lawnchair_adapter }, () ->
  # do stuff

Using the db option you can create multiple stores in one sqlite file. (There will be one table per store.)

recipes = new Lawnchair {db: "cookbook", name: "recipes", ...}
ingredients = new Lawnchair {db: "cookbook", name: "ingredients", ...}

Legacy Lawnchair test

In the lawnchair-test subdirectory of Cordova-iOS you can copy the contents of the www subdirectory into a Cordova/PhoneGap project and see the behavior of the Lawnchair test suite.

Extra notes

Old baching notes for iOS version:

Other notes from @Joenoon:

I played with the idea of batching responses into larger sets of writeJavascript on a timer, however there was only a barely noticeable performance gain. So I took it out, not worth it. However there is a massive performance gain by batching on the client-side to minimize PhoneGap.exec calls using the transaction support.