9.4 KiB
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.
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
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.
Cordova iOS
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);
});
});
Legacy PhoneGap (old version)
Coffee Script
db = new PGSQLitePlugin("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 PGSQLitePlugin("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(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("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.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.