set opposite expiry option to null when setting expiry (#93)

Author: Matt-Woz

Couchbase/InsertOptions.php

@@ -77,8 +77,10 @@ public function timeout(int $milliseconds): InsertOptions
     public function expiry($seconds): InsertOptions
     {
         if ($seconds instanceof DateTimeInterface) {
+            $this->expirySeconds = null;
             $this->expiryTimestamp = $seconds->getTimestamp();
         } else {
+            $this->expiryTimestamp = null;
             $this->expirySeconds = (int)$seconds;
         }
         return $this;

Couchbase/MutateInOptions.php

@@ -95,8 +95,10 @@ public function cas(string $cas): MutateInOptions
     public function expiry($seconds): MutateInOptions
     {
         if ($seconds instanceof DateTimeInterface) {
+            $this->expirySeconds = null;
             $this->expiryTimestamp = $seconds->getTimestamp();
         } else {
+            $this->expiryTimestamp = null;
             $this->expirySeconds = (int)$seconds;
         }
         return $this;

Couchbase/ReplaceOptions.php

@@ -78,8 +78,10 @@ public function timeout(int $milliseconds): ReplaceOptions
     public function expiry($seconds): ReplaceOptions
     {
         if ($seconds instanceof DateTimeInterface) {
+            $this->expirySeconds = null;
             $this->expiryTimestamp = $seconds->getTimestamp();
         } else {
+            $this->expiryTimestamp = null;
             $this->expirySeconds = (int)$seconds;
         }
         return $this;

Couchbase/UpsertOptions.php

@@ -77,8 +77,10 @@ public function timeout(int $milliseconds): UpsertOptions
     public function expiry($seconds): UpsertOptions
     {
         if ($seconds instanceof DateTimeInterface) {
+            $this->expirySeconds = null;
             $this->expiryTimestamp = $seconds->getTimestamp();
         } else {
+            $this->expiryTimestamp = null;
             $this->expirySeconds = (int)$seconds;
         }
         return $this;