1 files changed, 77 insertions, 0 deletions
diff --git a/js/service/model.js b/js/service/model.js
new file mode 100644
index 000000000..a28608329
--- /dev/null
+++ b/js/service/model.js
@@ -0,0 +1,77 @@
+/**
+ * ownCloud - News
+ *
+ * This file is licensed under the Affero General Public License version 3 or
+ * later. See the COPYING file.
+ *
+ * @author Bernhard Posselt <dev@bernhard-posselt.com>
+ * @copyright Bernhard Posselt 2014
+ */
+app.factory('Model', function () {
+    'use strict';
+
+    var Model = function (id) {
+        this.id = id;
+        this.values = [];
+        this.hashMap = {};
+    };
+
+    Model.prototype = {
+        receive: function (values) {
+            var self = this;
+            values.forEach(function (value) {
+                self.add(value);
+            });
+        },
+
+        add: function (value) {
+            var key,
+                existing;
+
+            existing = this.hashMap[value[this.id]];
+
+            if (existing === undefined) {
+                this.values.push(value);
+                this.hashMap[value[this.id]] = value;
+            } else {
+                // copy values from new to old object if it exists already
+                for (key in value) {
+                    if (value.hasOwnProperty(key)) {
+                        existing[key] = value[key];
+                    }
+                }
+            }
+        },
+
+        size: function () {
+            return this.values.length;
+        },
+
+        get: function (id) {
+            return this.hashMap[id];
+        },
+
+        delete: function (id) {
+            // find index of object that should be deleted
+            var i,
+                deleteAtIndex;
+
+            for (i = 0; i < this.values.length; i += 1) {
+                if (this.values[i][this.id] === id) {
+                    deleteAtIndex = i;
+                    break;
+                }
+            }
+
+            if (deleteAtIndex !== undefined) {
+                this.values.splice(deleteAtIndex, 1);
+            }
+
+            if (this.hashMap[id] !== undefined) {
+                delete this.hashMap[id];
+            }
+        }
+    };
+
+    return Model;
+});
+\ No newline at end of file