Add support for introspecting enum

.github/workflows/ci.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Setup PHP
       uses: shivammathur/setup-php@v2

phpunit.xml.dist

@@ -9,7 +9,7 @@
         <bootstrap class="Cake\TestSuite\Fixture\Extension\PHPUnitExtension"/>
     </extensions>
     <php>
-        <!-- <env name="FIXTURE_SCHEMA_METADATA" value="./tests/schema.php"/> -->
+        <env name="FIXTURE_SCHEMA_METADATA" value="./tests/schema.php"/>
     </php>
     <source>
         <include>

psalm-baseline.xml

@@ -1,17 +1,9 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<files psalm-version="dev-master@">
-  <file src="src/Listener/ViewSearchListener.php">
-    <PossiblyUndefinedArrayOffset occurrences="1">
-      <code>$input['type']</code>
-    </PossiblyUndefinedArrayOffset>
-  </file>
+<files psalm-version="5.23.1@8471a896ccea3526b26d082f4461eeea467f10a4">
   <file src="src/View/Widget/DateTimeWidget.php">
-    <PossiblyNullArrayAccess occurrences="2">
-      <code>$data['name']</code>
-      <code>$data['templateVars']</code>
+    <PossiblyNullArrayAccess>
+      <code><![CDATA[$data['name']]]></code>
+      <code><![CDATA[$data['templateVars']]]></code>
     </PossiblyNullArrayAccess>
-    <PossiblyUndefinedArrayOffset occurrences="1">
-      <code>$data['type']</code>
-    </PossiblyUndefinedArrayOffset>
   </file>
 </files>

src/Dashboard/Module/LinkItem.php

@@ -56,7 +56,7 @@ public function __construct(string|array $title, string|array|null $url, array $
      */
     protected function _setTitle(string|array|null $title): string|array
     {
-        if (empty($title)) {
+        if ($title === null || $title === '') {
             throw new InvalidArgumentException('Missing title for LinkItem action');
         }
 
@@ -72,7 +72,7 @@ protected function _setTitle(string|array|null $title): string|array
      */
     protected function _setUrl(string|array|null $url): string|array
     {
-        if ($url === null || empty($url)) {
+        if ($url === null || $url === '') {
             throw new InvalidArgumentException('Invalid url specified for LinkItem');
         }
 
@@ -87,10 +87,6 @@ protected function _setUrl(string|array|null $url): string|array
      */
     protected function _setOptions(array $options): string|array
     {
-        if (empty($options)) {
-            $options = [];
-        }
-
         $url = $this->get('url');
         if (!is_array($url)) {
             $isHttp = substr($url, 0, 7) === 'http://';

src/Listener/ViewListener.php

@@ -171,7 +171,7 @@ protected function _getPageTitle(): string
         }
 
         $primaryKeyValue = $this->_primaryKeyValue();
-        if (empty($primaryKeyValue)) {
+        if ($primaryKeyValue === null) {
             return sprintf('%s %s', $actionName, $controllerName);
         }
 
@@ -612,7 +612,7 @@ protected function _deriveFieldFromContext(string $field): mixed
         $request = $this->_request();
         $value = $entity->get($field);
 
-        if ($value) {
+        if ($value !== null) {
             return $value;
         }
 

src/Listener/ViewSearchListener.php

@@ -151,6 +151,7 @@ public function fields(): array
                     $input['options'][$input['value']] = $input['value'];
                 }
 
+                /** @psalm-suppress PossiblyInvalidOperand */
                 $input += [
                     'data-input-type' => 'text',
                     'data-tags' => 'true',
@@ -188,6 +189,12 @@ public function fields(): array
         return $fields;
     }
 
+    /**
+     * Get placeholder text for a field.
+     *
+     * @param string $field Field name.
+     * @return string
+     */
     protected function getPlaceholder(string $field): string
     {
         if (str_contains($field, '.')) {

src/View/Cell/TablesListCell.php

@@ -18,13 +18,14 @@ class TablesListCell extends Cell
      */
     public function display(?array $tables = null, ?array $blacklist = null): void
     {
-        if (empty($tables)) {
+        if ($tables === null) {
             /** @var \Cake\Database\Connection $connection */
             $connection = ConnectionManager::get('default');
             $schema = $connection->getSchemaCollection();
             $tables = $schema->listTables();
             ksort($tables);
 
+            /** @psalm-suppress RiskyTruthyFalsyComparison */
             if (!empty($blacklist)) {
                 $tables = array_diff($tables, $blacklist);
             }

src/View/Helper/CrudViewHelper.php

@@ -3,12 +3,15 @@
 
 namespace CrudView\View\Helper;
 
+use BackedEnum;
+use Cake\Database\Type\EnumLabelInterface;
 use Cake\Datasource\EntityInterface;
 use Cake\Datasource\SchemaInterface;
 use Cake\Utility\Inflector;
 use Cake\Utility\Text;
 use Cake\View\Helper;
 use Cake\View\Helper\FormHelper;
+use UnitEnum;
 use function Cake\Core\h;
 use function Cake\I18n\__d;
 
@@ -156,6 +159,10 @@ public function introspect(string $field, mixed $value, array $options = []): ar
             return $this->formatTime($field, $value, $options);
         }
 
+        if ($type !== null && str_starts_with($type, 'enum-')) {
+            return $this->formatEnum($field, $value, $options);
+        }
+
         $value = $this->formatString($field, $value);
 
         if ($field === $this->getViewVar('displayField')) {
@@ -230,6 +237,23 @@ public function formatTime(string $field, mixed $value, array $options): string
         return $value;
     }
 
+    /**
+     * Format an enum for display
+     *
+     * @param string $field Name of field.
+     * @param \UnitEnum|\BackedEnum|string|int $value Value of field.
+     * @return string
+     */
+    public function formatEnum(string $field, UnitEnum|BackedEnum|string|int $value, array $options): string
+    {
+        if (is_scalar($value)) {
+            return (string)$value;
+        }
+
+        return $value instanceof EnumLabelInterface ?
+            $value->label() : Inflector::humanize(Inflector::underscore($value->name));
+    }
+
     /**
      * Format a string for display
      *

tests/Fixture/BlogsFixture.php

@@ -7,16 +7,7 @@
 
 class BlogsFixture extends TestFixture
 {
-    public $fields = [
-        'id' => ['type' => 'integer'],
-        'is_active' => ['type' => 'boolean', 'default' => true, 'null' => false],
-        'name' => ['type' => 'string', 'length' => 255, 'null' => false],
-        'body' => ['type' => 'text', 'null' => false],
-        'user_id' => ['type' => 'integer'],
-        '_constraints' => ['primary' => ['type' => 'primary', 'columns' => ['id']]],
-    ];
-
-    public $records = [
+    public array $records = [
         ['name' => '1st post', 'body' => '1st post body', 'user_id' => 1],
         ['name' => '2nd post', 'body' => '2nd post body', 'user_id' => 1],
         ['name' => '3rd post', 'body' => '3rd post body', 'user_id' => 1],

tests/TestCase/Listener/ViewSearchListenerTest.php

@@ -15,17 +15,17 @@
  */
 class ViewSearchListenerTest extends TestCase
 {
-    protected $fixtures = ['plugin.CrudView.Blogs'];
+    protected array $fixtures = ['plugin.CrudView.Blogs'];
 
     /**
      * @var \Cake\Controller\Controller;
      */
-    protected $controller;
+    protected Controller $controller;
 
     /**
      * @var \CrudView\Listener\ViewSearchListener
      */
-    protected $listener;
+    protected ViewSearchListener $listener;
 
     public function setUp(): void
     {
@@ -39,7 +39,8 @@ public function setUp(): void
             'params' => ['controller' => 'Blogs', 'action' => 'index', 'plugin' => null, '_ext' => null],
         ]);
 
-        $this->controller = new Controller($request, null, 'Blogs');
+        $this->controller = new Controller($request, 'Blogs');
+        $this->controller->loadComponent('Crud.Crud');
 
         $this->listener = new ViewSearchListener($this->controller);
 
@@ -67,6 +68,7 @@ public function testFields()
                 'data-tags' => 'true',
                 'data-allow-clear' => 'true',
                 'data-placeholder' => '',
+                'empty' => 'Name',
             ],
             'is_active' => [
                 'required' => false,

tests/schema.php

@@ -0,0 +1,16 @@
+<?php
+declare(strict_types=1);
+
+return [
+    [
+        'table' => 'blogs',
+        'columns' => [
+            'id' => ['type' => 'integer'],
+            'is_active' => ['type' => 'boolean', 'default' => true, 'null' => false],
+            'name' => ['type' => 'string', 'length' => 255, 'null' => false],
+            'body' => ['type' => 'text', 'null' => false],
+            'user_id' => ['type' => 'integer'],
+        ],
+        'constraints' => ['primary' => ['type' => 'primary', 'columns' => ['id']]],
+    ],
+];