[Feat] Birth dates are now sorted correctly

Gestion/src/views/ApplicationsView.vue

@@ -26,6 +26,7 @@
         :pagination.sync="pagination"
         :select-all="$store.getters['moduleUser/userIsResponsible']"
         :search="$store.state.moduleApplications.filters.search"
+        :custom-sort="customSort"
       >
         <template v-slot:items="props">
           <span></span>
@@ -211,7 +212,36 @@ export default {
       dateTimeParts[1]--
       let date = new Date(...dateTimeParts)
       return date.getDate() + '/' + (date.getMonth() + 1) + '/' + date.getFullYear() + ' à ' + ('0' + date.getHours()).slice(-2) + ':' + ('0' + date.getMinutes()).slice(-2)
-    }
+    },
+    customSort: function (items, index,isDesc) {
+      if (items.length === 0 || index.length === 0) {
+        return items;
+      }
+
+      const column = index;
+      const descending = isDesc;
+      
+      const compareAlphabetically = (a, b) => {
+        return a[column] < b[column] ? (descending ? -1 : 1) : (descending ? 1 : -1);
+      };
+
+      //Sort by date
+      const compareByDate = (a, b) => {
+        const dateA = new Date(a[column].split('/').reverse().join('-'));
+        const dateB = new Date(b[column].split('/').reverse().join('-'));
+        return descending ? dateA - dateB : dateB - dateA;
+      };
+
+      let compareFunction;
+      if (column === 'applicant_birthdate') {
+        compareFunction = compareByDate;
+      } else {
+        compareFunction = compareAlphabetically;
+      }
+
+      items.sort(compareFunction);
+      return items;
+    },
   },
   components: {
     ApplicationsFilters,