Can't print to PDF in Slim Framework, Twig, and DomPDF - pdf

I have been struggling with this and I can't get it to work, despite that in some other posts they say you can use the Twig's render() function, I get the folowing error:
Requested HTML document contains no data. Dompdf\Exception
My code so far is:
use Dompdf\Dompdf;
$app->post('/my/path/for/printing',function()use($app){
//echo '<p>printing to pdf ... ☺</p>';
$request=$app->request;
/* code for retrieving data from the database ... done.*/
$variables = [
'param1' => $param1,
'param2' => $param2,
];
$dompdf = new Dompdf();
$content = $app->render('path/for/the/view.print.twig', $variables);
$dompdf->loadHtml($content);
$dompdf->render();
$dompdf->stream('sample.pdf');
})->name('my.path.for.printing');
If I render my view, the data is displayed correctly. But with dompdf is not working.
Does anybody know how to fix this?
Otherwise, can you explain with an example of any other package how to print a Twig view in PDF?

render() doesn't return the HTML. Try:
$content = $app-view->fetch('path/for/the/view.print.twig', $variables);

Related

Markdown not rendering html elements

This is my Markdown variable
#{
Layout="_Layout";
var post =await Orchard.GetContentItemByHandleAsync($"alias:{Slug}");
string markdown=post.Content.MarkdownBodyPart.Markdown;
ViewData["Title"] = post;
ViewData["Description"]=post.Content.Blogpost.Subtitle.Text;
ViewData["Image"]=#Orchard.AssetUrl((string)post.Content.Blogpost.Image.Paths[0]);
}
And this is how I used it within my page
#await Orchard.MarkdownToHtmlAsync(markdown)
But with all this in place, html elements are not rendering (i.e , and more)
here is the link to the page that is failing to render, https://thinkwide.tech/post/blockchain
I finally got it working. I had to put the following code on the start up class under services.
services.AddOrchardCms().ConfigureServices(tenantServices =>
tenantServices.PostConfigure<MarkdownPipelineOptions>(o =>
{
o.Configure.Clear();
}));
More info about markdown pipeline is found here: https://docs.orchardcore.net/en/dev/docs/reference/modules/Markdown/

Html to pdf download in laravel 5

I am usin barryvdh/laravel-dompdf to convert html page to pdf download.
But I have little problem. here is my code.
I would like to download in "show" as /sale/{id}.
In controller
public function pdf(Request $request,$id)
{
$sale = Sale::find($id);
view()->share('sale', $sale);
if ($request->has('download')) {
$pdf = PDF::loadview('sale.slip_out_show');
$pdf->stream();
return $pdf->download('saleslip_out.pdf');
}
return view('sale.slip_out_show');
}
in view
Download PDF
In routes
Route::get('pdf', array('as' => 'pdf', 'uses' => 'SaleController#pdf'));
but this error found
ErrorException in SaleController.php line 105:
Missing argument 2 for App\Http\Controllers\SaleController::pdf()
The problem is the passing argument on pdf(Request $request,$id) method.
You have to pass at least 2 parameter on following href link:
Pass the download Sales ID
Download PDF
In route
Route::get('pdf/{id}', array('as' => 'pdf', 'uses' => 'SaleController#pdf'));
This code will download a pdf file with defined content
*
$pdf = App::make('dompdf.wrapper');
$pdf->loadHTML($message);
return $pdf->download($file_name);
*

why using viewSimple renderer in Phalcon corrupts main renderer

First I declare simple view like this:
$di->set('viewSimple', function() {
$view = new \Phalcon\Mvc\View\Simple();
$view->setViewsDir('../app/views/');
$view->registerEngines(array(
".volt" => 'volt'
));
return $view;
});
then to generate html email, I use it as following:
public function renderHTMLEmail($template_name, $template_params) {
$content = $this->viewSimple->render("emails/$template_name", $template_params);
return $this->viewSimple->render("emails/master", array( 'content' => $content) );
}
My emails are being generated just fine, but whenever I call my renderHTMLEmail function actual page rendering is somehow corrupted and page appears totally blank (I have to use redirect as workaround). This is a mystery to me as main view renderer is completely different object. Can I prevent this?
Or does anybody have recommended method of generating arbitrary pieces of html outside of main view rendering process which would not interfere with it? There is couple of similar questions on SO, but none of solutions work. They either don't generate my email or they corrupt main view.
Found a solution, when registering the "\Phalcon\Mvc\View\Simple" component into the DI container make sure to use a new volt instance otherwise it will join up with the application's \Phalcon\Mvc\View volt instance somehow. This is what lot (https://stackoverflow.com/users/1672165/lot) was suggesting in the comments.
Code sample:
public function getTemplate($name, $params)
{
$parameters = array_merge(array(
'publicUrl' => $this->getDI()->getApp()->url->host . $this->getDI()->getApp()->url->baseUri
), $params);
$app = $this->getDI()->getApp();
$this->getDI()->set('simpleView', function() use ($app) {
$view = new \Phalcon\Mvc\View\Simple();
$view->setViewsDir(APP_DIR . $app->application->viewsDir);
$view->registerEngines(array(
".volt" => function ($view, $di) {
$volt = new \Phalcon\Mvc\View\Engine\Volt($view, $di);
$volt->setOptions(array(
'compiledPath' => APP_DIR . '/cache/volt/',
'compiledSeparator' => '_',
'compiledExtension' => '.compiled'
));
$compiler = $volt->getCompiler();
$compiler->addFunction('is_a', 'is_a');
return $volt;
}
));
return $view;
});
/* #var $simpleView \Phalcon\Mvc\View\Simple */
$simpleView = $this->getDI()->get('simpleView');
foreach ($parameters as $key => $value) {
$simpleView->{$key} = $value;
}
$html = $simpleView->render('emails/' . $name, $parameters);
return $html;
}
Sample was pulled straight from our working app so may need some re-working but should help solve the original issue.
This works for me using \View as the application DI registered view component which renders controller action volt views and the above \View\Simple with fresh volt registration successfully emails and allows the original view with volt to carry on.
This was asked a while ago however i've not seen a working solution anywhere else.
For completeness I've registered a github issue with the findings: https://github.com/phalcon/cphalcon/issues/3096
I recently had to deal with a similar problem, I'm not certain where you're falling short, but one important thing was to use a separate view from the one used by the application – you're already doing this. See if the following works.
protected function renderView($view, $template, array $data = null)
{
return $view
->reset()
->pick('emails/' . $template)
->setVars($data)
->start()
->render(null, null)
->finish()
->getContent();
}
public function renderHTMLEmail($template_name, $template_params)
{
$content = $this->render($template_name, $template_params);
return $this->render('master', array('content' => $content));
}

Is it possible to render custom view (just custom .phtml) template with Phalcon\Mvc\View?

I need to render email templates in variable to send them later (which are stored in .phtml files), and i really don't want to implement my special class for handling this.
Is it possible to render not controller action view, but custom one?
I tried following code, but it outputs NULL :((
// Controller context
$view = new Phalcon\Mvc\View();
$view->setViewsDir('app/views/');
$view->setVar('var1', 'var2');
// Setting some vars...
$view->start();
$view->partial($emailTemplatePath);
$view->finish();
$result = $view->getContent();
var_dump($result); // Gives null
In addition to the response by Nikolaos, you can use $view->getRender() to render a single view returning its output.
$view->setViewsDir('apps/views/');
echo $view->getRender('partials', 'test'); // get apps/views/partials/test.phtml
You need to check the path of the $emailTemplatePath. It should point to the correct file i.e.
// points to app/views/partials/email.phtml
$view->partial('partials/email');
If you are using Volt and have registered that as your engine, then your file will need to be:
// app/views/partials/email.volt
I have a project where I use email and pdf templates and what I did was to have the rendering all take place within components.
Firstly, my folder structure contains (and I will only put here what is relevant) a cache, components and views directory. Let's look at the email setup rather than the PDF as this is more relevant to your situation.
/app
/cache
/email
/components
/views
/email
/elements
Of course there is public, controllers etc but let's not think about them for this.
I'm using Swift mailer for mine but I hope you will be able to use this all the same. In /app/components/Swift.php I have a __construct that calls for this->init_template_engine();
/**
* Create a volt templating engine for generating html
*/
private function init_template_engine() {
$this->_template = new \Phalcon\Mvc\View\Simple();
$di = new \Phalcon\DI\FactoryDefault();
$this->_template->setDI($di);
$this->_template->registerEngines([
'.volt' => function($view, $di) {
$volt = new \Phalcon\Mvc\View\Engine\Volt($view, $di);
$volt->setOptions([
'compiledPath' => APP_DIR."cache".DS."email".DS, // render cache in /app/cache/email/
'compiledSeparator' => '_'
]);
return $volt;
// or use ".phtml" => 'Phalcon\Mvc\View\Engine\Php' if you want,
// both will accept PHP code if ya don't fancy it being a 100% volt.
},
]);
// tell it where your templates are
$this->_template->setViewsDir(APP_DIR.'views'.DS.'email'.DS);
return $this->_template;
}
The constants above (like APP_DIR) are something I have already made in my bootstrap and all they do is store full paths to directories.
Once the $_template variable has a template engine set up I can then use it to render my templates.
/**
* Returns HTML via Phalcon's volt engine.
* #param string $template_name
* #param array $data
*/
private function render_template($template_name = null, $data = null) {
// Check we have some data.
if (empty($data)) {
return false; // or set some default data maybe?
}
// Use the template name given to render the file in views/email
if(is_object($this->_template) && !empty($template_name)) {
return $this->_template->render($template_name, ['data' => $data]);
}
return false;
}
A sample volt email template may look like this:
{{ partial('elements/email_head') }}
<h2>Your Order has been dispatched</h2>
<p>Dear {{ data.name }}</p>
<p>Your order with ACME has now been dispatched and should be with you within a few days.</p>
<p>Do not hesitate to contact us should you have any questions when your waste of money arrives.</p>
<p>Thank you for choosing ACME Inc.</p>
{{ partial('elements/email_foot') }}
All I have to do then is grab the html and use swiftmailer's setBody method and I'm done:
->setBody($this->render_template($template, $data), 'text/html');
You don't need to place separate view engines like this in components, it could become memory hungry like that, but it does show the whole process. Hope that makes sense :)
The easiest way to render a view and return it as a variable is to use the Phalcon\Mvc\View\Simple class. In your controller, declare a new instance of the Simple view class and attach a rendering engine to it. You can then use its render() method to select a view file and pass in variables:
// create a simple view to help render sections of the page
$simple_view = new \Phalcon\Mvc\View\Simple();
$simple_view->setViewsDir( __DIR__ . '/../views/' );
$simple_view->setDI( $this->di );
$simple_view->registerEngines(array(
'.volt' => 'Phalcon\Mvc\View\Engine\Volt'
));
// use the simple view to generate one or more widgets
$widget_html = array();
$widget_objects = $widget_search->getWidgetObjects();
forEach( $widget_objects as $widget ){
$widget_html[] = $simple_view->render('index/widgetview',array('widget'=>$widget));
}
// pass the html snippets as a variable into your regular view
$this->view->setVar('widget_html',$widget_html);
use $view->render('partials/email') instead of calling partial method.
I usually use Volt engine and a simple way is a redefine view in DI container, like that:
$view = $this->view;
$content = $view->getRender('mail', 'show',
array(
"var1" => "some value 1",
"var2" => "some value 2"
),
function($view) {
$view->setRenderLevel(\Phalcon\Mvc\View::LEVEL_LAYOUT);
}
);
echo $content;

How does one add a 'plain text node' to a zend form?

I'm trying to add a plain text node in a zend form - the purpose is to only dispay some static text.
The problem is - im not aware of any such way to do it.
I have used 'description' but that HAS to be attached to a form element.
Is there any way to simply display some text as part of a form? Zend considers everything as a form element so I cannot just print it out.
Eg:
The following will test your ability on so and so.
.
.
.
etc...
Any thoughts?
Zend has a form note view helper (Zend_View_Helper_FormNote), which you can use to add text.
Just create a new form element (/application/forms/Element/Note.php):
class Application_Form_Element_Note extends Zend_Form_Element_Xhtml
{
public $helper = 'formNote';
}
In your form:
$note = new Application_Form_Element_Note(
'test',
array('value' => 'This is a <b>test</b>')
);
$this->addElement($note);
Adding a hidden element with non-escaped description does the thing.
$form->addElement('hidden', 'plaintext', array(
'description' => 'Hello world! Check it out',
'ignore' => true,
'decorators' => array(
array('Description', array('escape'=>false, 'tag'=>'')),
),
));
Works perfectly. It is still attached to an element, which is, however, not rendered this way.
Code taken from: http://paveldubinin.com/2011/04/7-quick-tips-on-zend-form/
There might be a better way, but I created a paragraph by using a custom form element and view helper. Seems like alot of code for something so simple. Please let me know if you've found a more simplistic way to do it.
//From your form, add the MyParagraph element
$this->addElement(new Zend_Form_Element_MyParagraph('myParagraph'));
class Zend_Form_Element_MyParagraph extends Zend_Form_Element
{
public $helper = 'myParagraph';
public function init()
{
$view = $this->getView();
}
}
class Zend_View_Helper_MyParagraph extends Zend_View_Helper_FormElement {
public function init() {
}
public function myParagraph() {
$html = '<p>hello world</p>';
return $html;
}
}
A little late but thought I'd throw it in anyway for the benefit of the community.
Aine has hit the nail on the head. FormNote is what you need if you want to use text in Zend_Form. However, you can use it without needing to extend Zend_Form_Element_Xhtml. See example below:
$text = new Zend_Form_Element_Text('myformnote');
$text->setValue("Text goes here")
->helper = 'formNote';
Note that you can use both text and html with the formNote helper.
This functionality is built into Zend via Zend_Form_Element_Note.
$note = new Zend_Form_Element_Note('forgot_password');
$note->setValue('Forgot Password?');
I faced the same problem and decided is better not to use Zend_Form at all, but to use directly view helpers (like Ruby on Rails does) and validate on the model.
This one-liner works for me:
$objectForm->addElement(new Zend_Form_Element_Note('note', array('value' => 'Hello World')));