From 02767d44ae50d1442320e3dfbb03dc3642269a67 Mon Sep 17 00:00:00 2001
From: Davide Alberani <da@erlug.linux.it>
Date: Wed, 8 Apr 2015 21:55:05 +0200
Subject: [PATCH] add filters.js

---
 angular_app/js/filters.js | 52 +++++++++++++++++++++++++++++++++++++++
 1 file changed, 52 insertions(+)
 create mode 100644 angular_app/js/filters.js

diff --git a/angular_app/js/filters.js b/angular_app/js/filters.js
new file mode 100644
index 0000000..bf5a483
--- /dev/null
+++ b/angular_app/js/filters.js
@@ -0,0 +1,52 @@
+'use strict';
+
+/* Filters for EventMan(ager) lists of objects. */
+
+/* Filter for events that have (or not) information about a registered person. */
+eventManApp.filter('eventWithPersonData', ['$filter',
+    function($filter) {
+        return function(inputArray, mustBePresent) {
+            if (mustBePresent === undefined) {
+                mustBePresent = true;
+            }
+            inputArray = inputArray || [];
+            var returnArray = [];
+            for (var x=0; x < inputArray.length; x++) {
+                var found = inputArray[x].person_data && inputArray[x].person_data.person_id;
+                if ((found && mustBePresent) || (!found && !mustBePresent)) {
+                    returnArray.push(inputArray[x]);
+                }
+            }
+            return returnArray;
+        };
+    }]
+);
+
+
+/* Filter for persons (not) registered for a given event. */
+eventManApp.filter('personRegistered', ['$filter',
+    function($filter) {
+        return function(inputArray, data) {
+            if (data.present === undefined) {
+                data.present = true;
+            }
+            inputArray = inputArray || [];
+            var returnArray = [];
+            var registeredIDs = [];
+            if (!(data.event && data.event.persons && data.event.persons.length)) {
+                return inputArray;
+            }
+            for (var x=0; x < data.event.persons.length; x++) {
+                registeredIDs.push(data.event.persons[x].person_id);
+            }
+            for (var x=0; x < inputArray.length; x++) {
+                var found = registeredIDs.indexOf(inputArray[x]._id) != -1;
+                if ((found && data.present) || (!found && !data.present)) {
+                    returnArray.push(inputArray[x]);
+                }
+            }
+            return returnArray;
+        }
+    }]
+);
+