FIX Avoid infinite recursive loop with attributes in schemadata (#312)

src/StringTagField.php

@@ -197,19 +197,6 @@ protected function formatOptions($fieldValue)
         return $formattedValue;
     }
 
-    /**
-     * When not used in a React form factory context, this adds the schema data to SilverStripe template
-     * rendered attributes lists
-     *
-     * @return array
-     */
-    public function getAttributes()
-    {
-        $attributes = parent::getAttributes();
-        $attributes['data-schema'] = json_encode($this->getSchemaData());
-        return $attributes;
-    }
-
     /**
      * @return string
      */

src/TagField.php

@@ -381,7 +381,6 @@ public function getAttributes()
             [
                 'name' => $name,
                 'style' => 'width: 100%',
-                'data-schema' => json_encode($this->getSchemaData()),
             ]
         );
     }

templates/SilverStripe/TagField/TagField.ss

@@ -1 +1 @@
-<div $AttributesHTML></div>
+<div $AttributesHTML $SchemaAttributesHtml></div>

tests/StringTagFieldTest.php

@@ -132,13 +132,6 @@ public function testGetSchemaDataDefaults()
         $this->assertStringContainsString('suggest', $schema['optionUrl']);
     }
 
-    public function testSchemaIsAddedToAttributes()
-    {
-        $field = new StringTagField('TestField');
-        $attributes = $field->getAttributes();
-        $this->assertNotEmpty($attributes['data-schema']);
-    }
-
     public function testPerformReadonlyTransformation()
     {
         $field = new StringTagField('Tags');

tests/TagFieldTest.php

@@ -413,6 +413,8 @@ public function testReadonlyTransformation()
         $field = new TagField('Tags', '', TagFieldTestBlogTag::get());
         $field->setTitleField('Title');
         $field->setValue(['Tag1']);
+        $form = new Form();
+        $field->setForm($form);
 
         // When not read only (and not lazy-loading) all source options are returned
         $htmlText = $field->Field();
@@ -482,13 +484,6 @@ public function testGetSchemaDataDefaults()
         $this->assertStringContainsString('suggest', $schema['optionUrl']);
     }
 
-    public function testSchemaIsAddedToAttributes()
-    {
-        $field = new TagField('TestField');
-        $attributes = $field->getAttributes();
-        $this->assertNotEmpty($attributes['data-schema']);
-    }
-
     /**
      * @param array $options
      * @param string $title