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readme.md

Cordova SQLitePlugin

DISCLAIMER:

Created by @Joenoon:

Adapted to 1.5 by coomsie

DISCLAIMER:

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

Installing

Cordova (PhoneGap) 1.5.0

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.

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 PhoneGap.plist:

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

Insert this in there:

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

General Usage

Coffee Script

db = new SQLitePlugin("test_native.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 SQLitePlugin("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);
                                        });
                   });

Lawnchair Adapter Usage

Include the following js files in your html:

  • lawnchair.js (you provide)
  • sqlite_plugin.js
  • lawnchair_sqlite_plugin_adapter.js (must come after sqlite_plugin.js)

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", ...}

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.

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