Add support for #2006

app/Rules/IsDateOrTime.php

@@ -0,0 +1,61 @@
+<?php
+declare(strict_types=1);
+
+namespace FireflyIII\Rules;
+
+use Carbon\Carbon;
+use Carbon\Exceptions\InvalidDateException;
+use Illuminate\Contracts\Validation\Rule;
+use Log;
+
+/**
+ * Class IsDateOrTime
+ */
+class IsDateOrTime implements Rule
+{
+
+    /**
+     * Get the validation error message.
+     *
+     * @return string|array
+     */
+    public function message()
+    {
+        return (string)trans('validation.date_or_time');
+    }
+
+    /**
+     * Determine if the validation rule passes.
+     *
+     * @param  string $attribute
+     * @param  mixed  $value
+     *
+     * @return bool
+     */
+    public function passes($attribute, $value): bool
+    {
+        $value = (string)$value;
+        if (10 === \strlen($value)) {
+            // probably a date format.
+            try {
+                Carbon::createFromFormat('Y-m-d', $value);
+            } catch (InvalidDateException $e) {
+                Log::error(sprintf('"%s" is not a valid date: %s', $value, $e->getMessage()));
+
+                return false;
+            }
+
+            return true;
+        }
+        // is an atom string, I hope?
+        try {
+            Carbon::parse($value);
+        } catch (InvalidDateException $e) {
+            Log::error(sprintf('"%s" is not a valid date or time: %s', $value, $e->getMessage()));
+
+            return false;
+        }
+
+        return true;
+    }
+}