Merge pull request #23 from alvinjohnsonso/fix/enable-visitor-recognition-undefined-property

Fixed property undefined when checking enable_visitor_recognition from options by changing how $options->enable_visitor_recognition was being checked. Used `isset` instead of `is_null`to properly check if the property was set

Author: alvinjohnsonso

prestashop1.6/config.xml

@@ -2,7 +2,7 @@
 <module>
 	<name>tawkto</name>
 	<displayName><![CDATA[tawk.to]]></displayName>
-	<version><![CDATA[1.2.1]]></version>
+	<version><![CDATA[1.2.2]]></version>
 	<description><![CDATA[tawk.to live chat integration.]]></description>
 	<author><![CDATA[tawk.to]]></author>
 	<tab><![CDATA[front_office_features]]></tab>

prestashop1.6/tawkto.php

@@ -33,7 +33,7 @@ public function __construct()
     {
         $this->name = 'tawkto';
         $this->tab = 'front_office_features';
-        $this->version = '1.2.1';
+        $this->version = '1.2.2';
         $this->author = 'tawk.to';
         $this->need_instance = 0;
         $this->ps_versions_compliancy = array('min' => '1.5', 'max' => '1.6');
@@ -88,7 +88,7 @@ public function hookDisplayFooter()
         if ($result) {
             $options = json_decode($result);
 
-            if (!is_null($options->enable_visitor_recognition)) {
+            if (isset($options->enable_visitor_recognition)) {
                 $enable_visitor_recognition = $options->enable_visitor_recognition;
             }
 

prestashop1.7/config.xml

@@ -2,7 +2,7 @@
 <module>
     <name>tawkto</name>
     <displayName><![CDATA[tawk.to]]></displayName>
-    <version><![CDATA[1.2.1]]></version>
+    <version><![CDATA[1.2.2]]></version>
     <description><![CDATA[tawk.to live chat integration.]]></description>
     <author><![CDATA[tawk.to]]></author>
     <tab><![CDATA[front_office_features]]></tab>

prestashop1.7/tawkto.php

@@ -33,7 +33,7 @@ public function __construct()
     {
         $this->name = 'tawkto';
         $this->tab = 'front_office_features';
-        $this->version = '1.2.1';
+        $this->version = '1.2.2';
         $this->author = 'tawk.to';
         $this->need_instance = 0;
         $this->ps_versions_compliancy = array('min' => '1.5', 'max' => '1.7');
@@ -88,7 +88,7 @@ public function hookDisplayFooter()
             $options = json_decode($result);
             $current_page = (string) $_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'];
 
-            if (!is_null($options->enable_visitor_recognition)) {
+            if (isset($options->enable_visitor_recognition)) {
                 $enable_visitor_recognition = $options->enable_visitor_recognition;
             }