7241 Always add empty option for prefix and/or suffix if optional

Author: avstudnitz

app/code/Magento/Config/Model/Config/Source/Nooptreq.php

@@ -11,15 +11,19 @@
  */
 class Nooptreq implements \Magento\Framework\Option\ArrayInterface
 {
+    const VALUE_NO = '';
+    const VALUE_OPTIONAL = 'opt';
+    const VALUE_REQUIRED = 'req';
+
     /**
      * @return array
      */
     public function toOptionArray()
     {
         return [
-            ['value' => '', 'label' => __('No')],
-            ['value' => 'opt', 'label' => __('Optional')],
-            ['value' => 'req', 'label' => __('Required')]
+            ['value' => self::VALUE_NO, 'label' => __('No')],
+            ['value' => self::VALUE_OPTIONAL, 'label' => __('Optional')],
+            ['value' => self::VALUE_REQUIRED, 'label' => __('Required')]
         ];
     }
 }

app/code/Magento/Customer/Model/Options.php

@@ -5,6 +5,7 @@
  */
 namespace Magento\Customer\Model;
 
+use Magento\Config\Model\Config\Source\Nooptreq as NooptreqSource;
 use Magento\Customer\Helper\Address as AddressHelper;
 use Magento\Framework\Escaper;
 
@@ -42,7 +43,10 @@ public function __construct(
      */
     public function getNamePrefixOptions($store = null)
     {
-        return $this->_prepareNamePrefixSuffixOptions($this->addressHelper->getConfig('prefix_options', $store));
+        return $this->prepareNamePrefixSuffixOptions(
+            $this->addressHelper->getConfig('prefix_options', $store),
+            $this->addressHelper->getConfig('prefix_show', $store) == NooptreqSource::VALUE_OPTIONAL
+        );
     }
 
     /**
@@ -53,23 +57,31 @@ public function getNamePrefixOptions($store = null)
      */
     public function getNameSuffixOptions($store = null)
     {
-        return $this->_prepareNamePrefixSuffixOptions($this->addressHelper->getConfig('suffix_options', $store));
+        return $this->prepareNamePrefixSuffixOptions(
+            $this->addressHelper->getConfig('suffix_options', $store),
+            $this->addressHelper->getConfig('suffix_show', $store) == NooptreqSource::VALUE_OPTIONAL
+        );
     }
 
     /**
      * Unserialize and clear name prefix or suffix options
+     * If field is optional, add an empty first option.
      *
      * @param string $options
+     * @param bool $isOptional
      * @return array|bool
      */
-    protected function _prepareNamePrefixSuffixOptions($options)
+    private function prepareNamePrefixSuffixOptions($options, $isOptional = false)
     {
         $options = trim($options);
         if (empty($options)) {
             return false;
         }
         $result = [];
         $options = explode(';', $options);
+        if ($isOptional && trim(current($options))) {
+            array_unshift($options, '');
+        }
         foreach ($options as $value) {
             $value = $this->escaper->escapeHtml(trim($value));
             $result[$value] = $value;

app/code/Magento/Customer/etc/adminhtml/system.xml

@@ -209,7 +209,7 @@
                 <field id="prefix_options" translate="label comment" sortOrder="30" showInDefault="1" showInWebsite="1" showInStore="0">
                     <label>Prefix Dropdown Options</label>
                     <comment>
-                        <![CDATA[Semicolon (;) separated values.<br/>Put semicolon in the beginning for empty first option.<br/>Leave empty for open text field.]]>
+                        <![CDATA[Semicolon (;) separated values.<br/>Leave empty for open text field.]]>
                     </comment>
                 </field>
                 <field id="middlename_show" translate="label comment" type="select" sortOrder="40" showInDefault="1" showInWebsite="1" showInStore="0">
@@ -227,7 +227,7 @@
                 <field id="suffix_options" translate="label comment" sortOrder="60" showInDefault="1" showInWebsite="1" showInStore="0">
                     <label>Suffix Dropdown Options</label>
                     <comment>
-                        <![CDATA[Semicolon (;) separated values.<br/>Put semicolon in the beginning for empty first option.<br/>Leave empty for open text field.]]>
+                        <![CDATA[Semicolon (;) separated values.<br/>Leave empty for open text field.]]>
                     </comment>
                 </field>
                 <field id="dob_show" translate="label" type="select" sortOrder="70" showInDefault="1" showInWebsite="1" showInStore="0">

app/code/Magento/Customer/i18n/en_US.csv

@@ -479,9 +479,9 @@ Strong,Strong
 "The title that goes before name (Mr., Mrs., etc.)","The title that goes before name (Mr., Mrs., etc.)"
 "Prefix Dropdown Options","Prefix Dropdown Options"
 "
-                        Semicolon (;) separated values.<br/>Put semicolon in the beginning for empty first option.<br/>Leave empty for open text field.
+                        Semicolon (;) separated values.<br/>Leave empty for open text field.
                     ","
-                        Semicolon (;) separated values.<br/>Put semicolon in the beginning for empty first option.<br/>Leave empty for open text field.
+                        Semicolon (;) separated values.<br/>Leave empty for open text field.
                     "
 "Show Middle Name (initial)","Show Middle Name (initial)"
 "Always optional.","Always optional."