Create a page edit form on frontend using PW API and fields from the template of the page

## from.php
<?php

// get a page
$editpage = $pages->get("/editme/");
$ignorefields = array("isOld","language_published");

$form = $modules->get("InputfieldForm");
$form->method = 'post';
$form->action = './';

// get the collection of inputs that can populate this page's fields
$inputfields = $editpage->getInputfields();

// make all the fields required and add them to the form
foreach($inputfields as $inputfield) {
    if(in_array($inputfield->name, $ignorefields)) continue;
    $form->add($inputfield);
}

// the inputfields don't already have a submit button, so we'll add one.
$submit = $modules->get("InputfieldSubmit");
$submit->name = "submit";
$submit->value = 'Submit';

// add the submit button the the form
$form->add($submit);

$out = '';

// process the form
if($this->input->post->submit) {
    // now we assume the form has been submitted.
    // tell the form to process input frmo the post vars.
    $form->processInput($this->input->post);

    // see if any errors occurred
    if( count( $form->getErrors() )) {
        // re-render the form, it will include the error messages
        $out .= $form->render();
    } else {
        // successful form submission, so populate the page with the new values.
        $editpage->setOutputFormatting(false);
        foreach($form as $field) {
            $editpage->set($field->name, $field->value);
        }
        // save it
        $editpage->save();
        $out .= "Page saved.";
        $out .= $form->render();
    }
} else {
    $out .= $form->render();
}

include("head.inc"); // where scripts are added needed by the form

echo $out;

## head.php
<script>
<?php
$jsConfig = $config->js();
$jsConfig['urls'] = array(
	'root' => $config->urls->root,
	'admin' => $config->urls->admin,
	'modules' => $config->urls->modules,
	'core' => $config->urls->core,
	'files' => $config->urls->files,
	'templates' => $config->urls->templates,
	'adminTemplates' => $config->urls->adminTemplates,
	'adminTemplates' => $config->urls->adminTemplates,
);
?>
var config = <?php echo json_encode($jsConfig); ?>;
</script>
<?php
$config->styles->prepend($config->urls->adminTemplates . "styles/main.css?v=2");
$config->styles->append($config->urls->adminTemplates . "styles/inputfields.css");
$config->styles->append($config->urls->adminTemplates . "styles/ui.css?v=2");

$config->scripts->append($config->urls->JqueryUI . "JqueryUI.js");
$config->scripts->prepend($config->urls->JqueryCore . "JqueryCore.js");
$config->scripts->append($config->urls->adminTemplates . "scripts/inputfields.js");

foreach($config->styles->unique() as $file) echo "\n\t<link type='text/css' href='$file' rel='stylesheet' />";
foreach($config->scripts->unique() as $file) echo "\n\t<script type='text/javascript' src='$file'></script>";

?>