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Twig Template Engine For Opencart - OCMOD

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# opencart-twig
Twig Template Engine For Opencart

Twig is a modern template engine for PHP

Fast: Twig compiles templates down to plain optimized PHP code. The overhead compared to regular PHP code was reduced to the very minimum.

Secure: Twig has a sandbox mode to evaluate untrusted template code. This allows Twig to be used as a template language for applications where users may modify the template design.

Flexible: Twig is powered by a flexible lexer and parser. This allows the developer to define its own custom tags and filters, and create its own DSL.

## Installation

- Upload the folders and files from the 'upload' directory via FTP to your OpenCart server's main directory. No files will be replaced

- Log into the admin backend,  proceed to Extensions > Installer, click on the Upload button and browse to vanderson_twig_ocmod.xml file.

- Proceed to Extensions > Modifications, and click on the Refresh button located near the top right corner.

- Use $this->load->view('template_path') on controllers to compile with twig, native php templates or both mixed.

- By default, cache is disabled. If you want to use cache, define the path variable on config.php and admin/config.php files:

define('TWIG_CACHE', DIR_CACHE . 'twig');

## Documentation

##Functions##

### link
Shortcut for $this->url->link();

> Params:

> * route
> * args
> * ssl

```twig

{{ link('product/product', { 'foo': 'bar' }, 'SSL') }}
```

* param 'token' is automatically placed

## lang
Loads the corrensponding language string

> Params:

> * key
> * file

```twig

{{ lang('text_stock', 'product/product') }}
```

### config
Gets config value

> Params:

> * key
> * file

```twig

{{ config('custom_config', 'custom_file') }}
```

### image
Resize the image and return its url

> Params:

> * path
> * context
> * width
> * height

```twig

```

### asset
Generate link to the file

> Params:

> * path

```twig

```

### load
Loads a controller

> Params:

> * path

```twig

```

### paginate
Render a pagination view

> Params:

> * total
> * limit
> * route
> * args
> * template

```twig

{{ paginate(50, 5, 'product/category', { 'foo': 'bar' }, 'custom_template/pagination.twig') }}

```

## Admin only

### can_access
Check if the logged user can access the resource

> Params:

> * key

```twig

{% if can_access('user/user_permission') %}

{#  Can access this resource  #}

{% endif %}

```

### can_modify
Check if the logged user can modify the resource

> Params:

> * key

```twig

{% if can_modify('user/user_permission') %}

{# Can modify this resource #}

{% endif %}

```

## Filters

### money
Shortcut for $this->currency->format()

> Params:

> * currency
> * value
> * format

```twig

```

### tax
Shortcut for $this->tax->calculate()

> Params:

> * tax_class_id
> * calculate

```twig

```

### len
Shortcut for $this->length->format()

> Params:

> * length_class_id
> * decimal_point
> * thousand_point

```twig

```

### wei
Shortcut for $this->weight->format()

> Params:

> * weight_class_id
> * decimal_point
> * thousand_point

```twig

```

### truncate
Limits the text based on config 'config_product_description_length'

> Params:

> * suffix
> * limit

```twig

```

### encrypt
Shortcut for Encryption->encrypt()

```twig

```

### decrypt
Shortcut for Encryption->decrypt()

```twig

```

## Globals

This variables are accessible in all twig templates

> * document_title
> * document_description
> * document_keywords
> * document_links
> * document_styles
> * document_scripts
> * route
> * is_logged

### Admin Only

> * user

### Catalog Only

> * customer
> * affiliate
> * is_affiliate_logged
> * cart

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