PhoneGap-SQLitePlugin-Android/README.md

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Cordova/PhoneGap SQLiteNative plugin
====================================
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
API changes by @chbrody
DISCLAIMER:
We are brand new to objective-c, so there could be problems with our code!
Installing
==========
**NOTE:** There are now 2 trees: `Cordova-iOS` for Cordova 1.5(+) and `Legacy-PhoneGap-iPhone` for PhoneGap (tested 1.3 and earlier). I am planning to add an Android version in another tree, hopefully in the near future.
PhoneGap 1.3.0
--------------
For installing with PhoneGap 1.3.0:
in PGSQLitePlugin.h file change for PhoneGaps 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 PGSQLitePlugin.m JSONRepresentation must be changed to JSONString:
--- a/Plugins/PGSQLitePlugin.m
+++ b/Plugins/PGSQLitePlugin.m
@@ -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.
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>
**NOTE:** for `Legacy-PhoneGap-iPhone` the plugin name is still `PGSQLitePlugin`, expected to be fixed in the near future.
General Usage
=============
**NOTE:** in this fork the API is undergoing changes to be closer to the HTML5 Web SQL API and is expected to change in the near future.
Cordova iOS
-----------
## Coffee Script
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 (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 = 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);
});
});
**NOTE:** changes to tx.executeSql() success callback and possibly db.executeSql() callback are expected very soon.
Legacy PhoneGap (old version)
-----------------------------
## 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
=======================
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", ...}
Lawnchair test
--------------
In the lawnchair-test subdirectory of Cordova-iOS or Legacy-PhoneGap-iPhone you can copy the contents of the www subdirectory into a Cordova/PhoneGap project and see the behavior of the Lawnchair test suite.
### 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.