From eb34aa08994251ebc0c3536d95158293c3a62b0f Mon Sep 17 00:00:00 2001
From: David Schnell-Davis <dschnelldavis@gmail.com>
Date: Wed, 15 Nov 2017 19:33:06 -0800
Subject: [PATCH] Allow Date objects for 'date', 'time', and 'date-time'
 formats.

---
 src/lib/src/shared/format-regex.constants.ts |  4 +++-
 src/lib/src/shared/json.validators.ts        | 14 ++++++++------
 2 files changed, 11 insertions(+), 7 deletions(-)

diff --git a/src/lib/src/shared/format-regex.constants.ts b/src/lib/src/shared/format-regex.constants.ts
index 5bbe35f9..b53b0750 100644
--- a/src/lib/src/shared/format-regex.constants.ts
+++ b/src/lib/src/shared/format-regex.constants.ts
@@ -1,4 +1,4 @@
-// AJV fast format regular expressions from:
+// updated from AJV fast format regular expressions:
 // https://github.com/epoberezkin/ajv/blob/master/lib/compile/formats.js
 
 export const jsonSchemaFormatTests = {
@@ -7,6 +7,8 @@ export const jsonSchemaFormatTests = {
 
   'time': /^[0-2]\d:[0-5]\d:[0-5]\d(?:\.\d+)?(?:z|[+-]\d\d:\d\d)?$/i,
 
+  // Modified to allow incomplete entries, such as
+  // "2000-03-14T01:59:26.535" (needs "Z") or "2000-03-14T01:59" (needs ":00Z")
   'date-time': /^\d\d\d\d-[0-1]\d-[0-3]\d[t\s][0-2]\d:[0-5]\d(?::[0-5]\d)?(?:\.\d+)?(?:z|[+-]\d\d:\d\d)?$/i,
 
   // email (sources from jsen validator):
diff --git a/src/lib/src/shared/json.validators.ts b/src/lib/src/shared/json.validators.ts
index 4fbcb70c..34ebb8e0 100755
--- a/src/lib/src/shared/json.validators.ts
+++ b/src/lib/src/shared/json.validators.ts
@@ -331,19 +331,21 @@ export class JsonValidators {
     return (control: AbstractControl, invert = false): ValidationErrors|null => {
       if (isEmpty(control.value)) { return null; }
       let isValid: boolean;
-      let currentValue: string = control.value;
-      if (!isString(currentValue)) {
-        isValid = false;
-      } else {
+      let currentValue: string|Date = control.value;
+      if (isString(currentValue)) {
         const formatTest: Function|RegExp = jsonSchemaFormatTests[requiredFormat];
         if (typeof formatTest === 'object') {
-          isValid = (<RegExp>formatTest).test(currentValue);
+          isValid = (<RegExp>formatTest).test(<string>currentValue);
         } else if (typeof formatTest === 'function') {
-          isValid = (<Function>formatTest)(currentValue);
+          isValid = (<Function>formatTest)(<string>currentValue);
         } else {
           console.error(`format validator error: "${requiredFormat}" is not a recognized format.`);
           isValid = true;
         }
+      } else {
+        // Allow JavaScript Date objects
+        isValid = ['date', 'time', 'date-time'].includes(requiredFormat) &&
+          Object.prototype.toString.call(currentValue) === '[object Date]';
       }
       return xor(isValid, invert) ?
         null : { 'format': { requiredFormat, currentValue } };