new filter: unassigned cards

Signed-off-by: Jakob Röhrl <jakob.roehrl@web.de>

src/store/card.js

@@ -32,9 +32,10 @@ export default {
 	getters: {
 		cardsByStack: (state, getters, rootState) => (id) => {
 			return state.cards.filter((card) => {
-				const { tags, users, due } = rootState.filter
+				const { tags, users, due, unassigned } = rootState.filter
 				let allTagsMatch = true
 				let allUsersMatch = true
+				let allUnassigned = true
 
 				if (tags.length > 0) {
 					tags.forEach((tag) => {
@@ -58,6 +59,16 @@ export default {
 					}
 				}
 
+				if (unassigned) {
+					if (card.assignedUsers.length > 0) {
+						allUnassigned = false
+					}
+
+					if (!allUnassigned) {
+						return false
+					}
+				}
+
 				if (due !== '') {
 					const datediffHour = ((new Date(card.duedate) - new Date()) / 3600 / 1000)
 					switch (due) {