feat(web+server): map date filters + small changes (#2565)

server/libs/infra/src/utils/optional-between.util.ts

@@ -0,0 +1,15 @@
+import { Between, LessThanOrEqual, MoreThanOrEqual } from 'typeorm';
+
+/**
+ * Allows optional values unlike the regular Between and uses MoreThanOrEqual
+ * or LessThanOrEqual when only one parameter is specified.
+ */
+export default function OptionalBetween<T>(from?: T, to?: T) {
+  if (from && to) {
+    return Between(from, to);
+  } else if (from) {
+    return MoreThanOrEqual(from);
+  } else if (to) {
+    return LessThanOrEqual(to);
+  }
+}