From 45ddd15ecf24fac4fad52f7a4383043850867f23 Mon Sep 17 00:00:00 2001
From: Ain <41307858+nero@users.noreply.github.com>
Date: Mon, 9 Sep 2019 12:34:54 +0000
Subject: [PATCH] Allow preseeding form fields from URL parameters

---
 Form.php | 8 ++++++++
 test.php | 1 +
 2 files changed, 9 insertions(+)

diff --git a/Form.php b/Form.php
index bbe39c1..0111c03 100644
--- a/Form.php
+++ b/Form.php
@@ -29,6 +29,14 @@ class Form {
 		}
 	}
 
+	public function preseedFromUrl() {
+		foreach ($this->fields as $name=>$field) {
+			if (isset($_GET[$name])) {
+				$field->setValue($_GET[$name]);
+			}
+		}
+	}
+
 	public function loadFromEnv() {
 		foreach ($this->fields as $name=>$field) {
 			$field->loadFromEnv($name);
diff --git a/test.php b/test.php
index 3dff303..cecfe50 100644
--- a/test.php
+++ b/test.php
@@ -23,6 +23,7 @@ $form = new Post\Form(array(
 		"select" => new Post\SelectField(array("options"=>array("0"=>"false","1"=>"true")))
 	));
 
+$form->preseedFromUrl();
 $form->denyCsrf();
 
 if ($_SERVER["REQUEST_METHOD"]=="POST") {