Implement due dates for cards

Signed-off-by: Julius Härtl <jus@bitgrid.net>

js/filters/dateFilters.js

@@ -0,0 +1,57 @@
+/*
+ * @copyright Copyright (c) 2016 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *  
+ *  This program is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Affero General Public License as
+ *  published by the Free Software Foundation, either version 3 of the
+ *  License, or (at your option) any later version.
+ *  
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Affero General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU Affero General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *  
+ */
+
+app.filter('relativeDateFilter', function() {
+	return function (timestamp) {
+		return OC.Util.relativeModifiedDate(timestamp*1000);
+	}
+});
+
+app.filter('relativeDateFilterString', function() {
+	return function (date) {
+		return OC.Util.relativeModifiedDate(Date.parse(date));
+	}
+});
+
+app.filter('dateToTimestamp', function() {
+	return function (date) {
+		return Date.parse(date);
+	}
+});
+
+app.filter('parseDate', function() {
+	return function (date) {
+		if(moment(date).isValid()) {
+			return moment(date).format('YYYY-MM-DD');
+		}
+		return "";
+	}
+});
+
+app.filter('parseTime', function() {
+	return function (date) {
+		if(moment(date).isValid()) {
+			return moment(date).format('HH:mm');
+		}
+		return "";
+	}
+});