Add DbResource page

refs #7163

application/forms/Setup/DbResourcePage.php

@@ -0,0 +1,108 @@
+<?php
+// {{{ICINGA_LICENSE_HEADER}}}
+// {{{ICINGA_LICENSE_HEADER}}}
+
+namespace Icinga\Form\Setup;
+
+use PDOException;
+use Icinga\Web\Form;
+use Icinga\Web\Setup\DbTool;
+use Icinga\Form\Config\Resource\DbResourceForm;
+
+/**
+ * Wizard page to define connection details for a database resource
+ */
+class DbResourcePage extends Form
+{
+    /**
+     * Initialize this page
+     */
+    public function init()
+    {
+        $this->setName('setup_db_resource');
+    }
+
+    /**
+     * @see Form::createElements()
+     */
+    public function createElements(array $formData)
+    {
+        $this->addElement(
+            'hidden',
+            'type',
+            array(
+                'required'  => true,
+                'value'     => 'db'
+            )
+        );
+        $this->addElement(
+            'note',
+            'description',
+            array(
+                'value' => t(
+                    'Now please configure your database resource. Note that the database itself does not need'
+                    . ' to exist at this time as it is going to be created when installing Icinga Web 2.'
+                )
+            )
+        );
+
+        if (isset($formData['skip_validation']) && $formData['skip_validation']) {
+            $this->addSkipValidationCheckbox();
+        } else {
+            $this->addElement(
+                'hidden',
+                'skip_validation',
+                array(
+                    'required'  => true,
+                    'value'     => 0
+                )
+            );
+        }
+
+        $resourceForm = new DbResourceForm();
+        $this->addElements($resourceForm->createElements($formData)->getElements());
+    }
+
+    /**
+     * Validate the given form data and check whether it's possible to connect to the database server
+     *
+     * @param   array   $data   The data to validate
+     *
+     * @return  bool
+     */
+    public function isValid($data)
+    {
+        if (false === parent::isValid($data)) {
+            return false;
+        }
+
+        if (false === isset($data['skip_validation']) || $data['skip_validation'] == 0) {
+            try {
+                $db = new DbTool($this->getValues());
+                $db->checkConnectivity();
+            } catch (PDOException $e) {
+                $this->addError($e->getMessage());
+                $this->addSkipValidationCheckbox();
+                return false;
+            }
+        }
+
+        return true;
+    }
+
+    /**
+     * Add a checkbox to the form by which the user can skip the connection validation
+     */
+    protected function addSkipValidationCheckbox()
+    {
+        $this->addElement(
+            'checkbox',
+            'skip_validation',
+            array(
+                'required'      => true,
+                'label'         => t('Skip Validation'),
+                'description'   => t('Check this to not to validate connectivity with the given database server')
+            )
+        );
+    }
+}