Update readme for new current usage
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README.markdown
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Kostache is a [Kohana 3](https://github.com/kohana/kohana) module for using [Mustache](http://defunkt.github.com/mustache/) templates in your application.
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Mustache is a logic-less template class. It is impossible to embed logic into mustache files.
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## Usage
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## Example
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To use, simply create a POPO (Plain Old PHP Object) like so:
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Did you know the pagination view in Kohana is terrible? We are going to fix it:
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```php
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<?php
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### How it exists now:
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class View_Test
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{
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public $hello = 'world';
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<p class="pagination">
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<?php if ($first_page !== FALSE): ?>
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<a href="<?php echo $page->url($first_page) ?>" rel="first"><?php echo __('First') ?></a>
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<?php else: ?>
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<?php echo __('First') ?>
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<?php endif ?>
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<?php if ($previous_page !== FALSE): ?>
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<a href="<?php echo $page->url($previous_page) ?>" rel="prev"><?php echo __('Previous') ?></a>
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<?php else: ?>
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<?php echo __('Previous') ?>
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<?php endif ?>
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<?php for ($i = 1; $i <= $total_pages; $i++): ?>
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<?php if ($i == $current_page): ?>
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<strong><?php echo $i ?></strong>
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<?php else: ?>
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<a href="<?php echo $page->url($i) ?>"><?php echo $i ?></a>
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<?php endif ?>
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<?php endfor ?>
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<?php if ($next_page !== FALSE): ?>
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<a href="<?php echo $page->url($next_page) ?>" rel="next"><?php echo __('Next') ?></a>
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<?php else: ?>
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<?php echo __('Next') ?>
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<?php endif ?>
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<?php if ($last_page !== FALSE): ?>
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<a href="<?php echo $page->url($last_page) ?>" rel="last"><?php echo __('Last') ?></a>
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<?php else: ?>
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<?php echo __('Last') ?>
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<?php endif ?>
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</p><!-- .pagination -->
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Wow, look at all that logic in there! How do you plan on effectively maintaining that?!?
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### Our new View Class (classes/view/pagination/basic.php)
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<?php defined('SYSPATH') or die('No direct script access.');
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class View_Pagination_Basic extends kostache {
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protected $pagination;
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protected function items()
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{
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$items = array();
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// First.
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$first['title'] = 'first';
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$first['name'] = __('first');
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$first['url'] = ($this->pagination->first_page !== FALSE) ? $this->pagination->url($this->pagination->first_page) : FALSE;
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$items[] = $first;
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// Prev.
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$prev['title'] = 'prev';
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$prev['name'] = __('previous');
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$prev['url'] = ($this->pagination->previous_page !== FALSE) ? $this->pagination->url($this->pagination->previous_page) : FALSE;
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$items[] = $prev;
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// Numbers.
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for ($i=1; $i<=$this->pagination->total_pages; $i++)
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{
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$item = array();
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$item['num'] = TRUE;
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$item['name'] = $i;
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$item['url'] = ($i != $this->pagination->current_page) ? $this->pagination->url($i) : FALSE;
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$items[] = $item;
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}
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// Next.
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$next['title'] = 'next';
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$next['name'] = __('next');
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$next['url'] = ($this->pagination->next_page !== FALSE) ? $this->pagination->url($this->pagination->next_page) : FALSE;
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$items[] = $next;
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// Last.
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$last['title'] = 'last';
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$last['name'] = __('last');
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$last['url'] = ($this->pagination->last_page !== FALSE) ? $this->pagination->url($this->pagination->last_page) : FALSE;
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$items[] = $last;
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return $items;
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}
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public function testing()
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{
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return 'foobar';
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}
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}
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```
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Yum, logic in a class, where it belongs :)
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And create a mustache renderer. The parameter to the engine method is the template name to use.
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### Our mustache template (templates/pagination/basic.mustache)
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```php
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<?php
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<p class="pagination">
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{{#items}}
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{{#url}}<a href="{{url}}" {{#title}}rel="{{rel}}"{{/title}}>{{/url}}
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{{#num}}<strong>{{/num}}{{name}}{{#num}}</strong>{{/num}}
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{{#url}}</a>{{/url}}
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{{/items}}
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</p>
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$renderer = Kohana_Kostache::engine('test');
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```
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Holy cow, that's more maintainable :)
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And render it:
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```php
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<?php
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$this->response->body($renderer->render(new View_Test));
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```
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## Templates
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Templates should go in the `templates/` directory in your cascading file system. They should have a .mustache extension.
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## Partials
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To use a partial in your template you use the greater than sign (>) and the name, e.g. {{>header}}.
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You must define partials within the $_partials array in your view class. The key is the name that you use in your template and the value is a path to your partial file.
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protected $_partials = array(
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'header' => 'header', // Loads templates/header.mustache
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'footer' => 'footer/default', // Loads templates/footer/default.mustache
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);
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## Using the Kostache_Layout class
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Kostache comes with a Kostache_Layout class instead of a template controller. This allows your layouts to be more OOP and self contained, and they do not rely on your controllers so much.
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To use it, have your view extend the Kostache_Layout class. You can then specify your own layout file by placing it in templates/layout.mustache. At a minimum, it needs to have a {{>content}} partial defined in it.
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If you have a view that extends the Kostache_Layout class, but wish to render only the template and not the entire layout, you can set the public $render_layout property to FALSE. This is useful if you want to use the same view class for external requests and HMVC requests.
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$view = new View_Post_List;
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if ($this->request !== Request::instance) // Is internal request
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{
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$view->render_layout = FALSE;
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}
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Partials are loaded automatically based on the name used in the template. So if you reference `{{>foobar}}` in your template, it will look for that partial in `templates/partials/foobar.mustache`.
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For specific usage and documentation, see:
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[PHP Mustache](http://github.com/bobthecow/mustache.php)
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[Original Mustache](http://defunkt.github.com/mustache/)
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[Original Mustache](http://defunkt.github.com/mustache/)
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