';
}
/**
* Add a stylesheet asset
*
* @param string $filename Filename
* @return string
*/
function css($filename)
{
return '';
}
/**
* Load a template
*
* @param string $name Template name
* @param array $args Template parameters
* @return string
*/
function template($name, array $args = array())
{
$tpl = new Template;
return $tpl->load($name, $args);
}
/**
* Check if the given user_id is the connected user
*
* @param integer $user_id User id
* @return boolean
*/
function is_current_user($user_id)
{
return $_SESSION['user']['id'] == $user_id;
}
/**
* Check if the current user is administrator
*
* @return boolean
*/
function is_admin()
{
return $_SESSION['user']['is_admin'] == 1;
}
/**
* Return the username
*
* @param array $user User properties (optional)
* @return string
*/
function get_username(array $user = array())
{
return ! empty($user) ? ($user['name'] ?: $user['username'])
: ($_SESSION['user']['name'] ?: $_SESSION['user']['username']);
}
/**
* Get the current user id
*
* @return integer
*/
function get_user_id()
{
return $_SESSION['user']['id'];
}
/**
* Transform a Markdown text to HTML and add some post-processing
*
* @param string $text Markdown content
* @return string
*/
function parse($text)
{
$text = markdown($text);
$text = preg_replace('!#(\d+)!i', '$0', $text);
return $text;
}
/**
* Markdown transformation
*
* @param string $text Markdown content
* @return string
*/
function markdown($text)
{
$parser = new MarkdownExtra;
$parser->no_markup = true;
$parser->no_entities = true;
return $parser->transform($text);
}
/**
* Get the current URL without the querystring
*
* @return string
*/
function get_current_base_url()
{
$url = Tool::isHTTPS() ? 'https://' : 'http://';
$url .= $_SERVER['SERVER_NAME'];
$url .= $_SERVER['SERVER_PORT'] == 80 || $_SERVER['SERVER_PORT'] == 443 ? '' : ':'.$_SERVER['SERVER_PORT'];
$url .= dirname($_SERVER['PHP_SELF']) !== '/' ? dirname($_SERVER['PHP_SELF']).'/' : '/';
return $url;
}
/**
* HTML escaping
*
* @param string $value Value to escape
* @return string
*/
function escape($value)
{
return htmlspecialchars($value, ENT_QUOTES, 'UTF-8', false);
}
/**
* Dispplay the flash session message
*
* @param string $html HTML wrapper
* @return string
*/
function flash($html)
{
$data = '';
if (isset($_SESSION['flash_message'])) {
$data = sprintf($html, escape($_SESSION['flash_message']));
unset($_SESSION['flash_message']);
}
return $data;
}
/**
* Display the flash session error message
*
* @param string $html HTML wrapper
* @return string
*/
function flash_error($html)
{
$data = '';
if (isset($_SESSION['flash_error_message'])) {
$data = sprintf($html, escape($_SESSION['flash_error_message']));
unset($_SESSION['flash_error_message']);
}
return $data;
}
/**
* Format a file size
*
* @param integer $size Size in bytes
* @param integer $precision Precision
* @return string
*/
function format_bytes($size, $precision = 2)
{
$base = log($size) / log(1024);
$suffixes = array('', 'k', 'M', 'G', 'T');
return round(pow(1024, $base - floor($base)), $precision).$suffixes[(int)floor($base)];
}
/**
* Truncate a long text
*
* @param string $value Text
* @param integer $max_length Max Length
* @param string $end Text end
* @return string
*/
function summary($value, $max_length = 85, $end = '[...]')
{
$length = strlen($value);
if ($length > $max_length) {
return substr($value, 0, $max_length).' '.$end;
}
return $value;
}
/**
* Return true if needle is contained in the haystack
*
* @param string $haystack Haystack
* @param string $needle Needle
* @return boolean
*/
function contains($haystack, $needle)
{
return strpos($haystack, $needle) !== false;
}
/**
* Return a value from a dictionary
*
* @param mixed $id Key
* @param array $listing Dictionary
* @param string $default_value Value displayed when the key doesn't exists
* @return string
*/
function in_list($id, array $listing, $default_value = '?')
{
if (isset($listing[$id])) {
return escape($listing[$id]);
}
return $default_value;
}
/**
* Display the form error class
*
* @param array $errors Error list
* @param string $name Field name
* @return string
*/
function error_class(array $errors, $name)
{
return ! isset($errors[$name]) ? '' : ' form-error';
}
/**
* Display a list of form errors
*
* @param array $errors List of errors
* @param string $name Field name
* @return string
*/
function error_list(array $errors, $name)
{
$html = '';
if (isset($errors[$name])) {
$html .= '';
}
return $html;
}
/**
* Get an escaped form value
*
* @param mixed $values Values
* @param string $name Field name
* @return string
*/
function form_value($values, $name)
{
if (isset($values->$name)) {
return 'value="'.escape($values->$name).'"';
}
return isset($values[$name]) ? 'value="'.escape($values[$name]).'"' : '';
}
/**
* Hidden CSRF token field
*
* @return string
*/
function form_csrf()
{
return '';
}
/**
* Display a hidden form field
*
* @param string $name Field name
* @param array $values Form values
* @return string
*/
function form_hidden($name, array $values = array())
{
return '';
}
/**
* Display a select field
*
* @param string $name Field name
* @param array $options Options
* @param array $values Form values
* @param array $errors Form errors
* @param string $class CSS class
* @return string
*/
function form_select($name, array $options, array $values = array(), array $errors = array(), $class = '')
{
$html = '';
$html .= error_list($errors, $name);
return $html;
}
/**
* Display a radio field group
*
* @param string $name Field name
* @param array $options Options
* @param array $values Form values
* @return string
*/
function form_radios($name, array $options, array $values = array())
{
$html = '';
foreach ($options as $value => $label) {
$html .= form_radio($name, $label, $value, isset($values[$name]) && $values[$name] == $value);
}
return $html;
}
/**
* Display a radio field
*
* @param string $name Field name
* @param string $label Form label
* @param string $value Form value
* @param boolean $selected Field selected or not
* @param string $class CSS class
* @return string
*/
function form_radio($name, $label, $value, $selected = false, $class = '')
{
return '';
}
/**
* Display a checkbox field
*
* @param string $name Field name
* @param string $label Form label
* @param string $value Form value
* @param boolean $checked Field selected or not
* @param string $class CSS class
* @return string
*/
function form_checkbox($name, $label, $value, $checked = false, $class = '')
{
return '';
}
/**
* Display a form label
*
* @param string $name Field name
* @param string $label Form label
* @param array $attributes HTML attributes
* @return string
*/
function form_label($label, $name, array $attributes = array())
{
return '';
}
/**
* Display a textarea
*
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_textarea($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
$class .= error_class($errors, $name);
$html = '';
if (in_array('required', $attributes)) $html .= '*';
$html .= error_list($errors, $name);
return $html;
}
/**
* Display a input field
*
* @param string $type HMTL input tag type
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_input($type, $name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
$class .= error_class($errors, $name);
$html = '';
if (in_array('required', $attributes)) $html .= '*';
$html .= error_list($errors, $name);
return $html;
}
/**
* Display a text field
*
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_text($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
return form_input('text', $name, $values, $errors, $attributes, $class);
}
/**
* Display a password field
*
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_password($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
return form_input('password', $name, $values, $errors, $attributes, $class);
}
/**
* Display an email field
*
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_email($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
return form_input('email', $name, $values, $errors, $attributes, $class);
}
/**
* Display a date field
*
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_date($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
return form_input('date', $name, $values, $errors, $attributes, $class);
}
/**
* Display a number field
*
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_number($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
return form_input('number', $name, $values, $errors, $attributes, $class);
}
/**
* Display a numeric field (allow decimal number)
*
* @param string $name Field name
* @param array $values Form values
* @param array $errors Form errors
* @param array $attributes HTML attributes
* @param string $class CSS class
* @return string
*/
function form_numeric($name, $values = array(), array $errors = array(), array $attributes = array(), $class = '')
{
return form_input('text', $name, $values, $errors, $attributes, $class.' form-numeric');
}