[ADD] implement forgotten DataSet.get RPC method, test it a bit

bzr revid: xmo@openerp.com-20110323120806-uhas8xvxnpsa1dm2

addons/base/controllers/main.py

@@ -176,6 +176,9 @@ class DataSet(openerpweb.Controller):
                      domain, context, sort)
     def do_find(self, request, model, fields=False, offset=0, limit=False,
              domain=None, context=None, sort=None):
+        """ Performs a search() followed by a read() (if needed) using the
+        provided search criteria, only   
+        """
         Model = request.session.model(model)
         ids = Model.search(domain or [], offset or 0, limit or False,
                            sort or False, context or False)
@@ -184,6 +187,30 @@ class DataSet(openerpweb.Controller):
             return map(lambda id: {'id': id}, ids)
         return Model.read(ids, fields or False)
 
+    @openerpweb.jsonrequest
+    def get(self, request, model, ids):
+        self.do_get(request, model, ids)
+
+    def do_get(self, request, model, ids):
+        """ Fetches and returns the records of the model ``model`` whose ids
+        are in ``ids``.
+
+        The results are in the same order as the inputs, but elements may be
+        missing (if there is no record left for the id)
+
+        :param request: the JSON-RPC2 request object
+        :type request: openerpweb.JsonRequest
+        :param model: the model to read from
+        :type model: str
+        :param ids: a list of identifiers
+        :type ids: list
+        """
+        Model = request.session.model(model)
+        records = Model.read(ids)
+
+        record_map = dict((record['id'], record) for record in records)
+
+        return [record_map[id] for id in ids if record_map.get(id)]
 
 class DataRecord(openerpweb.Controller):
     _cp_path = "/base/datarecord"

addons/base/static/openerp/js/base_views.js

@@ -183,7 +183,8 @@ openerp.base.DataSet =  openerp.base.Controller.extend({
      */
     active_ids: function () {
         this.rpc('/base/dataset/get', {
-            ids: this.get_active_ids()
+            ids: this.get_active_ids(),
+            model: this.model
         }, _.bind(function (records) {
             this.on_active_ids(_.map(
                 records, function (record) {
@@ -210,7 +211,8 @@ openerp.base.DataSet =  openerp.base.Controller.extend({
      */
     active_id: function () {
         this.rpc('/base/dataset/get', {
-            ids: [this.get_active_id()]
+            ids: [this.get_active_id()],
+            model: this.model
         }, _.bind(function (records) {
             var record = records[0];
             this.on_active_id(

addons/base/tests/test_dataset.py

@@ -35,3 +35,42 @@ class TestDataSetController(unittest2.TestCase):
             self.dataset.do_find(self.request, 'fake.model', ['id']),
             [{'id': 1}, {'id': 2}, {'id': 3}])
         self.assertFalse(self.read.called)
+
+    def test_get(self):
+        self.read.return_value = [
+            {'id': 1, 'name': 'baz'},
+            {'id': 3, 'name': 'foo'},
+            {'id': 2, 'name': 'bar'}
+        ]
+
+        result = self.dataset.do_get(
+            self.request, 'fake.model', [3, 2, 1])
+        self.read.assert_called_once_with(
+            [3, 2, 1])
+        self.assertFalse(self.search.called)
+
+        self.assertEqual(
+            result,
+            [
+                {'id': 3, 'name': 'foo'},
+                {'id': 2, 'name': 'bar'},
+                {'id': 1, 'name': 'baz'}
+            ]
+        )
+
+    def test_get_missing_result(self):
+        self.read.return_value = [
+            {'id': 1, 'name': 'baz'},
+            {'id': 2, 'name': 'bar'}
+        ]
+
+        result = self.dataset.do_get(
+            self.request, 'fake.model', [3, 2, 1])
+
+        self.assertEqual(
+            result,
+            [
+                {'id': 2, 'name': 'bar'},
+                {'id': 1, 'name': 'baz'}
+            ]
+        )