[gom] examples: Add a JavaScript example

[Bastien Nocera <hadess src gnome org>]

commit c7bd13d64ed05165fdaf6a1efc466128a39f6f3a
Author: Bastien Nocera <hadess hadess net>
Date:   Thu Sep 15 15:03:50 2016 +0200

    examples: Add a JavaScript example
    
    From https://bugzilla.gnome.org/show_bug.cgi?id=739678

 examples/Makefile.include |    2 +-
 examples/gom.js           |   72 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 73 insertions(+), 1 deletions(-)
---
diff --git a/examples/Makefile.include b/examples/Makefile.include
index 7d4a5e4..00b7055 100644
--- a/examples/Makefile.include
+++ b/examples/Makefile.include
@@ -1 +1 @@
-EXTRA_DIST += examples/gom.py
+EXTRA_DIST += examples/gom.py examples/gom.js
diff --git a/examples/gom.js b/examples/gom.js
new file mode 100644
index 0000000..f53e09d
--- /dev/null
+++ b/examples/gom.js
@@ -0,0 +1,72 @@
+#!/usr/bin/gjs
+
+const Lang = imports.lang;
+const GLib = imports.gi.GLib;
+const GObject = imports.gi.GObject;
+const GIRepository = imports.gi.GIRepository;
+const Gom = imports.gi.Gom;
+const System = imports.system;
+
+const INT32_MAX = (2147483647);
+
+const ItemClass = new Lang.Class({
+    Name: 'Item',
+    Extends: Gom.Resource,
+
+    Properties: {
+        'id':  GObject.ParamSpec.int('id', 'ID',
+                                     'An ID', GObject.ParamFlags.READABLE | GObject.ParamFlags.WRITABLE | 
GObject.ParamFlags.CONSTRUCT,
+                                     0, INT32_MAX, 0),
+        'url': GObject.ParamSpec.string('url', 'URL',
+                                       'A URL',
+                                       GObject.ParamFlags.READABLE | GObject.ParamFlags.WRITABLE | 
GObject.ParamFlags.CONSTRUCT,
+                                       ''),
+    },
+
+    _init: function(params) {
+        this.parent(params);
+
+        Gom.Resource.set_table.call(this, 'items');
+        Gom.Resource.set_primary_key.call(this, 'id');
+    },
+
+    _instance_init: function() {
+    },
+});
+
+// Open
+let adapter = new Gom.Adapter;
+adapter.open_sync('/tmp/gom-js-test.db');
+let repository = new Gom.Repository({adapter: adapter});
+
+let item = new ItemClass({ 'repository': repository });
+//item.url = 'http://www.gnome.org';
+item.url = 'http://www.gnome.org';
+print (item.id);
+item.id = 0;
+print (item.url);
+
+// Migrate
+let object_types = [ ItemClass ];
+repository.automatic_migrate_sync(2, object_types);
+
+// Add item
+let ret = item.save_sync();
+print("New item ID:", item.id, "URL:", item.url);
+
+// Close
+adapter.close_sync();
+
+// Open
+let adapter = new Gom.Adapter;
+adapter.open_sync('/tmp/gom-js-test.db');
+let repository = new Gom.Repository({adapter: adapter});
+
+// Find item
+let filter = Gom.Filter.new_eq(ItemClass, "id", 1);
+let found_item = repository.find_one_sync(ItemClass, filter);
+
+print (found_item.url);
+
+// Close
+adapter.close_sync();