1 files changed, 89 insertions, 0 deletions
diff --git a/library/Director/Web/Form/Element/ExtensibleSet.php b/library/Director/Web/Form/Element/ExtensibleSet.php
new file mode 100644
index 0000000..f3c968f
--- /dev/null
+++ b/library/Director/Web/Form/Element/ExtensibleSet.php
@@ -0,0 +1,89 @@
+<?php
+
+namespace Icinga\Module\Director\Web\Form\Element;
+
+use InvalidArgumentException;
+
+/**
+ * Input control for extensible sets
+ */
+class ExtensibleSet extends FormElement
+{
+    /**
+     * Default form view helper to use for rendering
+     * @var string
+     */
+    public $helper = 'formIplExtensibleSet';
+
+   // private $multiOptions;
+
+    public function getValue()
+    {
+        $value = parent::getValue();
+        if (is_string($value) || is_numeric($value)) {
+            $value = [$value];
+        } elseif ($value === null) {
+            return $value;
+        }
+        if (! is_array($value)) {
+            throw new InvalidArgumentException(sprintf(
+                'ExtensibleSet expects to work with Arrays, got %s',
+                var_export($value, 1)
+            ));
+        }
+        $value = array_filter($value, 'strlen');
+
+        if (empty($value)) {
+            return null;
+        }
+
+        return $value;
+    }
+
+    /**
+     * We do not want one message per entry
+     *
+     * @codingStandardsIgnoreStart
+     */
+    protected function _getErrorMessages()
+    {
+        return $this->_errorMessages;
+        // @codingStandardsIgnoreEnd
+    }
+
+    /**
+     * @codingStandardsIgnoreStart
+     */
+    protected function _filterValue(&$value, &$key)
+    {
+        // @codingStandardsIgnoreEnd
+        if (is_array($value)) {
+            $value = array_filter($value, 'strlen');
+        } elseif (is_string($value) && !strlen($value)) {
+            $value = null;
+        }
+
+        parent::_filterValue($value, $key);
+    }
+
+    public function isValid($value, $context = null)
+    {
+        if ($value === null) {
+            $value = [];
+        }
+
+        $value = array_filter($value, 'strlen');
+        $this->setValue($value);
+        if ($this->isRequired() && empty($value)) {
+            // TODO: translate
+            $this->addError('You are required to choose at least one element');
+            return false;
+        }
+
+        if ($this->hasErrors()) {
+            return false;
+        }
+
+        return parent::isValid($value, $context);
+    }
+}