Create simple forms using API

[renobird]

Double/triple checked. Images do not resize based on max width / max height of field.

However, it does work to resize image after it is added to the field and the page is saved.

$user_image = $user->images->first();
$newSize = new ImageSizer($user_image->filename);

if ($user_image->width >= $user_image->height){
    $newSize->setUpscaling(false)->resize(1200,0);
}else if ($user_image->height >= $user_image->width){
    $newSize->setUpscaling(false)->resize(0,1200);} 

This will conditionally resize the image (based on orientation) and turns upscaling off.

[Soma]

Yeah this should work. 

I figured out how you could add a image and get resized with the InputfieldImage you have.

Having this as setting 

$field->maxWidth = 100;

$field->maxHeight = 100;

 

Then when adding the image to page field:

// create new page image first
$img = new PageImage($uploadpage->images, $upload_path . $file); 

// add it to page as usual
$uploadpage->images->add($img); 

// trigger the image max size sizing
$form->get("images")->fileAdded($img); 

[Basil]

just want to say thanks guys great tutorial!!

[RyanJ]

This has been extremely helpful for both learning the framework and php in general. I was hoping someone could help explain a few things in further detail as I am really new to Processwire and somewhat new to php other the working with WordPress. I have used Soma's code example which is extremely useful and altered it to my needs. I am attempting to create a simple contact form, but was unsure of a few things. 

Below, she provides a validation check for any hotmail addresses. Are there any other validations required or suggested if you are planning on having the submissions emailed to you? IE, check if is a valid email address with FILTER_VALIDATE_EMAIL or is this done for you

$email = $form->get("email");
    if($email && (strpos($email->value,'@hotmail') !== FALSE)){
        // attach an error to the field
        // and it will get displayed along the field
        $email->error("Sorry we don't accept hotmail addresses for now.");
    }
 

Secondly, any tips on how I would send the values submitted by email to the admin user or any user/email?

$email = $form->get("email")->value;
$name = $form->get("name")->value;
$name = $form->get("text")->value;
 

Thanks in advance for the community support and I am looking forward to working more with Processwire. The form builder is on my to get list and will same me hours of time, but I thought understanding the inside of it will benefit me more. 

Although I would still like to understand the above, I went with a similar solution others may find usefull here

Edited March 29, 2013 by RJay

[ryan]

Below, she provides a validation check for any hotmail addresses. Are there any other validations required or suggested if you are planning on having the submissions emailed to you? IE, check if is a valid email address with FILTER_VALIDATE_EMAIL or is this done for you

InputfieldEmail does this validation for you. 

Secondly, any tips on how I would send the values submitted by email to the admin user or any user/email?

PHP's built-in mail() function makes this pretty simple:

$body = "This is the message body";
$subject = "Web Contact";
$emailFrom = $form->get('email')->value; 
$emailTo = 'you@domain.com';

mail($emailTo, $subject, $body, "From: $emailFrom"); 

[RyanJ]

Truly grateful for the explanation and framework Ryan. Thanks!

[renobird]

Hi Soma (everyone else),

Is it possible to use repeaters with this method?

Any guidance would be appreciated.

[Soma]

I'm not sure if repeaters would work as they're somewhat special. 

[renobird]

Hmm — I figured as much.

What do you do for forms that need to create (and edit) repeaters?

I have a half baked idea:

foreach($pages->get("/config/expense-types/")->children() as $cat) {
   	$fieldset = $modules->get("InputfieldFieldset");
	$fieldset->label = "Expense Type";

	$field = $modules->get("InputfieldText");
	$field->label = $cat->title;
	$field->value = $cat->title;
	$field->attr("name+id",$cat->title);
	$fieldset->add($field);
	
	$field = $modules->get("InputfieldText");
	$field->label = "amount";
	$field->attr("name+id",$cat."-amount");
   	$fieldset->add($field);
	
	$form->add($fieldset);
}

That would create required inputs for all the possible expense types.

I think I can sort out how to foreach() the $input->post(s) and save them to repeaters.

Not sure how I would pull up the page and edit the repeaters, especially if they need to add new ones?

Am I making any sense?

[ryan]

I think I can sort out how to foreach() the $input->post(s) and save them to repeaters.

Looks like you are on the right track there. As for the field name and/or id, I'm guessing you don't want to use the title though. In order to make sure you've got something unique, you might want to use "myfield{$cat->id}" or something like that. 

Not sure how I would pull up the page and edit the repeaters, especially if they need to add new ones?

If you don't need to support images/files in repeaters, then it won't be too difficult. You would add one or more repeater items at the end, but make them hidden or collapsed. You could have a little javascript link that says "add item" and when clicked, it unhides the next one. Make the fields in each follow a different name format, like "myfield_new1" for the first one, "myfield_new2" for the second one, etc. Basically, some name format that your processor would know is referring to a new item it should add. Then it could process them like this:

$n = 1; 
$name = "myfield_new$n";
while($input->post->$name) {
  $item = $mypage->myrepeater->getNewItem()
  // populate any fields in the repeater you want 
  $item->title = $input->post->$name; 
  $item->save();
  $mypage->myrepeater->add($item); 
  $n++; 
  $name = "myfield_new$n";
}
if($n > 1) $mypage->save('myrepeater');  

[renobird]

Excellent post from Soma on repeaters and API.

[lpa]

Just hitting my head to a wall with this:

I have defined a field like this:

$field = $modules->get("InputfieldRadios");
$field->label = "Gender";
$field->addOption('girl', 'Girl');
$field->addOption('boy', 'Boy');
$field->attr("name+id",'gender');
$form->append($field); 

and try to save the field after submit with this:

$form->processInput($input->post);
$uploadpage = new Page();

$uploadpage->gender = $form->gender->value;
//OR 
$uploadpage->set($form->gender->name, $form->gender->value);

But it doesn't save the field value. With Ryans FormTemplateProcessor module this template works, but trying to do the "dirty work" manually, I just can't get radiobuttons or checkboxes to save. 

What is it that I don't understand here?

EDIT:

OK, Soma helped me on IRC:

Change 

$field->addOption('girl','Girl');

to this:

$gender = $pages->get("/options/gender/")->children();
foreach ($gender as $p) {
    $field->addOption($p->id,$p->title);
}

This is because I am using pages as options. Then save the field like this:

$uploadpage->set($form->gender->name, $form->gender->value);

Thanks to Soma!

[renobird]

Is it possible to add additional markup?

I need to have a group of fields display in a tabular format.

[Soma]

Is it possible to add additional markup?

I need to have a group of fields display in a tabular format.

You can use the InputfieldMarkup to add custom markup.

$field = $modules->get("InputfieldMarkup");
$field->markupText = "<p>your html string here</p>";

[renobird]

So the lesson to be learned here, is /wire/modules/Inputfield/ is my friend.

I need to remember to look there before asking my silly questions.

Thanks Soma!

[sakkoulas]

Hi everyone, is it possible to show inputfieldSelect with custom values, 

p.e. i want to search events by current date and get only evetns that they have not closed.

event 1 date: 13/5/2013 time: 9:00

event 2 date: 13/5/2013 time: 9:30

event 3 date: 13/5/2013 time: 10:30

so i want a select input filed with values like

8:00

8:30  // 9:00 until 10:00 is existing events from above

10:00 // 10:30 is existing event from above so go to 11

11:00

11:30

etc

is difficult for me to explained, i hope you have understand.

this is what i have until now, but i cant implemented inside form..

$today = strtotime( date('Y-m-d'));

$day_end = strtotime( "23:59:59" );


$searchDate = wire('pages')->get('/orders/')->children("date>=$today, date<=$day_end");


foreach ($searchDate as $s) {

    $currentTime = substr($s->date,11,5) ;

    $closedTimes[] = $currentTime;


}

echo "<select>";

$orders= $closedTimes;

$start = "08:00";

$end = "15:00";


$tStart = strtotime($start);

$tEnd = strtotime($end);

$tNow = $tStart;


while ($tNow <= $tEnd) {

    $newdate = date("H:i", $tNow);

    if (in_array($newdate, $orders)) {

        echo "something";

    }


    else {

    echo "<option value='time'>" .date("H:i", $tNow). "</option>";

}

    $tNow = strtotime('+30 minutes', $tNow);

}

echo "</select>";


}

[Soma]

This is as simple as:

$field = $modules->get("InputfieldSelect");
$field->attr("name", "myselect");
$field->addOption("myoption1", "My Option 1");
$field->addOption("myoption2", "My Option 2");

[sakkoulas]

thanks soma,

it  works

[sakkoulas]

hi,  can i have some help please;

every time I save the form as page, with random date selected,  page saves the current day,

 

this is my code

$out = '';
$form = $modules->get("InputfieldForm");
$form->action = "./";
$form->method = "post";
$form->attr("id+name",'subscribe-form');
 
$field = $modules->get("InputfieldText");
$field->label = "Ονοματεπώνυμο";
$field->attr('id+name','name');
$field->required = 1;
$form->append($field); // append the field to the form
 
$field = $modules->get("InputfieldEmail");
$field->label = "E-Mail";
$field->attr('id+name','email');
$field->required = 1;
$form->append($field); // append the field

$field = $modules->get("InputfieldDatetime");
$field->label = "Ημ/νια";
// $field->value = $input->post->date;
$field->attr("id+name","datetime");
// $field->attr("readonly", "readonly");
$field->required = 1;
$form->append($field);

$field = $modules->get("InputfieldSelect");
$field->label = "Ώρα";
$field->attr("id+name","time");

$ttoday = strtotime(date('Y/m/d'));
$tday_end = strtotime( "23:59:59" );    
$searchDate = wire('pages')->get('/orders/')->children("date>=$ttoday, date<=$tday_end");
foreach ($searchDate as $s) {
    $currentTime = substr($s->date,11,5);
    $closedTimes[] = $currentTime;
}
$random = $closedTimes;
$start = "08:00";
$end = "15:00";
$tStart = strtotime($start);
$tEnd = strtotime($end);
$tNow = $tStart;
while ($tNow <= $tEnd) {
    $newdate = date("H:i", $tNow);
    if (in_array($newdate, $random)) {  
    }
    else {
    $dateTnow = date("H:i", $tNow);
     $dates[] =  $dateTnow;
}
    $tNow = strtotime('+30 minutes', $tNow);
}
foreach ($dates as $d) {
   $field->addOption($d,$d);
}
$field->required = 1;
$form->append($field);

$field = $modules->get("InputfieldText");
$field->label = "Τηλέφωνο";
$field->attr('id+name','phone');
$field->required = 1;
$form->append($field); // append the field to the form

$submit = $modules->get("InputfieldSubmit");
$submit->attr("value","ΟΚ");
$submit->attr("id+name","submit");
$form->append($submit);
if($input->post->submit) {
    $form->processInput($input->post);
 
    $email = $form->get("email");
    if($email && (strpos($email->value,'@hotmail') !== FALSE)){
        // attach an error to the field
        // and it will get displayed along the field
        $email->error("Sorry we don't accept hotmail addresses for now.");
    }
 
    if($form->getErrors()) {
        // the form is processed and populated
        // but contains errors
        $out .= $form->render();
    } else {
 

         $sName = $form->get("name")->value;
         $sEmail = $form->get("E-Mail")->value;
         $sDate = $form->get("datetime")->value;
         $sTime = $form->get("time")->value;
         $tr = new Page();
         $tr->template = $templates->get("order");
        $tr->parent = $pages->get("/orders/");

  $sEmail = $sanitizer->email($form->get("email")->value);
  // $sDate  = $sanitizer->datetime($form->get("datetime")->value);

        $tr->of(false);
        $tr->name = $sName;
        $tr->title = $sName;
        $tr->body = $sEmail;
        $tr->date =  strtotime('d/m/Y',$sDate).' '.$sTime;
        $tr->time =  $sTime;
        $tr->save();

        $out .= " $name> ";

    }
 
} else {
    // render out form without processing
    $out .= $form->render();
    }

[renobird]

Hi Soma,

I think I'm moving beyond the "simple forms" portion of this topic. 

I'm trying to figure out how to delete files using this method.

I can get a list of the current files to show using $field->value

But can't seem to get my head around how to process the delete()

$field = $modules->get("InputfieldFile");
$field->label = "Attached Files";
$field->required = 0;
$field->value = $p->files;
$field->attr("name+id",'pagefiles');
$field->destinationPath = $upload_path;
$field->extensions = "doc docx pdf xls xlsx png";
$form->add($field);

I see that each file has a checkbox associated, but not sure how to use that to delete the correct file.

<input type="checkbox" name="delete_pagefiles_f86ba9c52a4f9cf4f81c3b8cf22fb6dd" value="1">

Can you nudge me in the right direction?

[Soma]

hi,  can i have some help please;

every time I save the form as page, with random date selected,  page saves the current day,

 

this is my code

...

Sorry, I think I missed this or ignored it because it's very hard to decifer your code and with very little initiative from you trying to find out.

You may already have solved it but after taking a short look at the code I think I found something

$field->addOption($d,$d);

I think the problem is that the $d is a formated date string? Maybe the value (first argument) should be a timestamp... or at least converted to timestamp before assigning to the $page->time. 

Hi Soma,

I think I'm moving beyond the "simple forms" portion of this topic. 

Can you nudge me in the right direction?

You know that's lots of beer there?

[renobird]

Soma,

Haha. So it's complicated then eh?

How much beer are we talking? 

[Alessio Dal Bianco]

Hi all,

i have some trouble trying to do a form on front-end that insert a page of a specific template. In fact the fields are created automagically but when i submit the form, PW throws me an error like: "New page '//' must be saved before files can be accessed from it [...]".

It seems that the files cannot be saved before the page is created. I'm right ? There is a workaround for this ?

This is my code:

$form = $this->modules->get("InputfieldForm");
                        $curriculum = new Page();
                        $curriculum->template = "curriculum";

                        // get all the fields of template "curriculum"
                        $fields = $templates->get('curriculum')->fields;

                        // we add also the submit
                        $submit = $modules->get("InputfieldSubmit");
                        $submit->attr("value","Invia");
                        $submit->attr("id+name","submit");

                        foreach ($fields as $key => $field) {
                            // We must have the Inputfield instance, not the Field.
                            $form->append($field->getInputField($curriculum));
                        }

                        $form->append($submit);

                        if( $input->post->submit ):

                            // validate the form
                            $form->processInput($input->post);

                            // Check if there are some errors
                            if( $form->getErrors() ):

                                echo $form->render();

                            else:

                                $curriculum->title = $form->get('nome')->value;
                                $curriculum->parent = $pages->get('/curriculum/')->id;
                                $curriculum->save();
                                foreach( $fields as $field ):
                                    // now we save all the fields.
                                    $curriculum->set( $field->name, $form->get($field->name)->value );

                                endforeach;
                                $curriculum->save();

                            endif;

                        else:

                          echo $form->render();

                        endif;

[Soma]

Soma,

Haha. So it's complicated then eh?

How much beer are we talking? 

No it's only as complicated as you make it

A ship full of.

This might work....

Its name is "delete_fieldname_hash" and this is how PW does process it

$id = $this->name . '_' . $pagefile->hash;
...
if(isset($input['delete_' . $id])) {
     $this->processInputDeleteFile($pagefile); 
     $changed = true; 
}

So I think you can simply loop the pagefiles you have on page and create the id as above and check for if any checkbox is set and delete the file.

foreach($page->pagefiles as $file) {
    $id = "pagefiles" . "_" . $file->hash;
    if(isset($input["delete_" . $id)) { 
        $page->pagefiles->delete($file);
    }
}

[Soma]

Hi all,

i have some trouble trying to do a form on front-end that insert a page of a specific template. In fact the fields are created automagically but when i submit the form, PW throws me an error like: "New page '//' must be saved before files can be accessed from it [...]".

It seems that the files cannot be saved before the page is created. I'm right ? There is a workaround for this ?

The error says exactly what you have to do: Save the page before files can be accessed...