Upgrade to v26 (#172)

* A bunch of new updates from icehrm pro

* Push changes to frontend

web/api-common/RequestCache.js

@@ -0,0 +1,69 @@
+/*
+ Copyright (c) 2018 [Glacies UG, Berlin, Germany] (http://glacies.de)
+ Developer: Thilina Hasantha (http://lk.linkedin.com/in/thilinah | https://github.com/thilinah)
+ */
+
+/**
+ * RequestCache
+ */
+
+class RequestCache {
+  getKey(url, params) {
+    let key = `${url}|`;
+    for (const index in params) {
+      key += `${index}=${params[index]}|`;
+    }
+    return key;
+  }
+
+  invalidateTable(table) {
+    let key;
+    for (let i = 0; i < localStorage.length; i++) {
+      key = localStorage.key(i);
+      if (key.indexOf(`t=${table}`) > 0) {
+        localStorage.removeItem(key);
+      }
+    }
+  }
+
+
+  getData(key) {
+    let data;
+
+    if (typeof (Storage) === 'undefined') {
+      return null;
+    }
+
+    const strData = localStorage.getItem(key);
+    if (strData !== undefined && strData != null && strData !== '') {
+      data = JSON.parse(strData);
+      if (data === undefined || data == null) {
+        return null;
+      }
+
+      if (data.status !== undefined && data.status != null && data.status !== 'SUCCESS') {
+        return null;
+      }
+
+      return data;
+    }
+
+    return null;
+  }
+
+  setData(key, data) {
+    if (typeof (Storage) === 'undefined') {
+      return null;
+    }
+
+    if (data.status !== undefined && data.status != null && data.status !== 'SUCCESS') {
+      return null;
+    }
+
+    const strData = JSON.stringify(data);
+    localStorage.setItem(key, strData);
+    return strData;
+  }
+}
+
+export default RequestCache;