Kirby Page Builder

This custom field for Kirby CMS (v2.2 and above) lets you predefine content blocks with different field sets that can then be added and arranged inside the panel (Kirby's backend).

Blueprint example

fields:
...
  builder:
    label: Sections
    type: builder
    fieldsets:
      bodytext:
        label: Body Text
        snippet: sections/bodytext
        fields:
          text:
            label: text
            type: textarea
      imageBanner:
        label: Image Banner
        snippet: sections/imagebanner
        fields:
          picture:
            label: Background Image
            type: image
          text:
            label: Headline Text
            type: text
      quote:
        label: Quote
        snippet: sections/quote
        fields:
          text:
            label: Quote Text
            type: textarea
          citation:
            label: Citation
            type: text

The above blueprint will give us a panel field like this:

Previewing the content inside the panel

There are three ways how the content of the builder entries can be displayed inside the panel:

By default the builder entries just show the plain content of the coresponding field set row by row

The builder field, just like the structure field, allows you to define some markup in teh blueprint's entry field to preview the content. The builder field extends this feature with the {{_fileUrl}} variable, to display images in the preview:

 ...
   builder:
     ...
     fieldsets:
       ...
       imageBanner:
         ...
 		    entry: >
 		      <img src="{{_fileUrl}}{{picture}}" height=120px/></br>
 		      {{url}}
 ...

The builder field, however, even gives you the possibility to use snippets to preview the content blocks. Inside these snippets, you have access to the $page and a $data variable. The latter contains all the content and logic of the field's data, i.e. you can render text as kirbytext, iterate over list items, etc.

You can just declare a path to the respective snippet path in a snippet field inside the blueprint:
```
 ...
   builder:
     ...
     fieldsets:
       ...
       imageBanner:
         ...
         snippet: builder/imagebanner
 ...
```
the snippet site/snippets/builder/imageBanner.php from the example above would look like this:
```
 <section class="imageBanner" 
 <?php if ($data->picture()->isNotEmpty()): ?>
   style="background-image: url(<?= $page->image($data->picture())->url() ?>)"
 <?php endif ?>
 >
   <h2 class="imageBanner-headline">
     <?= $data->text() ?>
   </h2>
 </section>
```
With this solution, it is possible to use the same snippet both in the website's frontend and in the panel. You can use a custom panel styling to control the look of the individual previews.

How the content will be stored

----

Builder: 

- 
  picture: forrest.jpg
  text: Hey folks!
  _fieldset: imageBanner
- 
  text: |
    ## Thanks for watching
    Lorem ipsum dolor sit amet, consetetur sadipscing 
    elitr, sed diam nonumy eirmod tempor invidunt ut 
    labore et dolore magna aliquyam erat, sed diam voluptua. 
    [...]
  _fieldset: bodytext
- 
  text: >
    Power is of two kinds. One is obtained
    by the fear of punishment and the other
    by acts of love. Power based on love is
    a thousand times more effective and
    permanent then the one derived from fear
    of punishment.
  citation: Mahadma Gandhi
  _fieldset: quote

Template Usage

There are different ways to use the builder field inside a template. A clean approach for this is to use different snippets inside site/snippets/sections/ that have the same file name like the field set names in the blueprint. Like mentioned above, these snippets could be the same like those used in the panel.

/site/templates/yourtemplate.php

<?php foreach($page->builder()->toStructure() as $section): ?>
  <?php snippet('sections/' . $section->_fieldset(), array('data' => $section)) ?>
<?php endforeach ?>

Don't forget to use toStructure() on the builder field that "gives you a full blown Kirby Collection which makes it possible to use Kirby's chaining syntax" (Kirby Documentation).

/site/snippets/sections/bodytext.php

<section class="bodyText">
  <?= $data->text()->kt() ?>
</section>

/site/snippets/sections/imagebanner.php

<section class="imageBanner" 
<?php if ($data->picture()->isNotEmpty()): ?>
  style="background-image: url(<?= $page->image($data->picture())->url() ?>)"
<?php endif ?>
>
  <h2 class="imageBanner-headline">
    <?= $data->text() ?>
  </h2>
</section>

/site/snippets/sections/quote.php

<section class="quote">
  <blockquote>
    <?= $data->text() ?>
  </blockquote>
  <div class="citation">
    <?= $data->citation() ?>
  </div>
</section>

Setup

git clone https://github.com/TimOetting/kirby-builder.git site/fields/builder From the root of your kirby install.

Alternatively you can download the zip file, unzip it's contents into site/fields/builder.

##Known Issues

Some issues related to the structure field of Kirby Panel do also affect the builder field. Builder fields do not support nested structure fields or other builder fields (on the TODO).

mcbrwr / kirby-builder