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initial commit of laravel!

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Taylor Otwell
2011-06-08 23:45:08 -05:00
commit a188d62105
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system/form.php Normal file
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<?php namespace System;
class Form {
/**
* Open a HTML form.
*
* @param string $action
* @param string $method
* @param array $attributes
* @return string
*/
public static function open($action = null, $method = 'POST', $attributes = array())
{
// -------------------------------------------------------
// If no action was given, use the current URI.
// -------------------------------------------------------
if (is_null($action))
{
$action = Request::uri();
}
// -------------------------------------------------------
// Prepare the action URL.
// -------------------------------------------------------
$action = URL::to($action);
// -------------------------------------------------------
// Set the action attribute.
// -------------------------------------------------------
$attributes['action'] = $action;
// -------------------------------------------------------
// Set the method attribute.
// -------------------------------------------------------
$attributes['method'] = ($method == 'GET' or $method == 'POST') ? $method : 'POST';
// -------------------------------------------------------
// Set the default character set.
// -------------------------------------------------------
if ( ! array_key_exists('accept-charset', $attributes))
{
$attributes['accept-charset'] = 'UTF-8';
}
// -------------------------------------------------------
// Build the form tag.
// -------------------------------------------------------
$html = '<form'.HTML::attributes($attributes).'>';
// -------------------------------------------------------
// If the method is PUT or DELETE, we'll need to spoof it
// using a hidden input field.
//
// For more information, see the Input library.
// -------------------------------------------------------
if ($method == 'PUT' or $method == 'DELETE')
{
$html .= PHP_EOL.static::hidden('request_method', $method);
}
return $html.PHP_EOL;
}
/**
* Generate a hidden field containing the current CSRF token.
*
* @return string
*/
public static function token()
{
return static::hidden('csrf_token', static::raw_token());
}
/**
* Retrieve the current CSRF token.
*
* @return string
*/
public static function raw_token()
{
// -------------------------------------------------------
// Verify that sessions are enabled.
// -------------------------------------------------------
if (Config::get('session.driver') == '')
{
throw new \Exception('Sessions must be enabled to retrieve a CSRF token.');
}
return Session::get('csrf_token');
}
/**
* Create a HTML text input element.
*
* @param string $name
* @param string $value
* @param array $attributes
* @return string
*/
public static function text($name, $value = null, $attributes = array())
{
return static::input('text', $name, $value, $attributes);
}
/**
* Create a HTML password input element.
*
* @param string $name
* @param array $attributes
* @return string
*/
public static function password($name, $attributes = array())
{
return static::input('password', $name, null, $attributes);
}
/**
* Create a HTML hidden input element.
*
* @param string $name
* @param array $attributes
* @return string
*/
public static function hidden($name, $value = null, $attributes = array())
{
return static::input('hidden', $name, $value, $attributes);
}
/**
* Create a HTML file input element.
*
* @param string $name
* @param array $attributes
* @return string
*/
public static function file($name, $attributes = array())
{
return static::input('file', $name, null, $attributes);
}
/**
* Create a HTML submit input element.
*
* @param string $name
* @param array $attributes
* @return string
*/
public static function submit($value, $attributes = array())
{
return static::input('submit', null, $value, $attributes);
}
/**
* Create a HTML button element.
*
* @param string $name
* @param string $value
* @param array $attributes
* @return string
*/
public static function button($value, $attributes = array())
{
return '<button'.HTML::attributes($attributes).'>'.$value.'</button>'.PHP_EOL;
}
/**
* Create a HTML checkbox input element.
*
* @param string $name
* @param string $value
* @param bool $checked
* @param array $attributes
* @return string
*/
public static function checkbox($name, $value = null, $checked = false, $attributes = array())
{
return static::checkable('checkbox', $name, $value, $checked, $attributes);
}
/**
* Create a HTML radio button input element.
*
* @param string $name
* @param string $value
* @param bool $checked
* @param array $attributes
* @return string
*/
public static function radio($name, $value = null, $checked = false, $attributes = array())
{
return static::checkable('radio', $name, $value, $checked, $attributes);
}
/**
* Create a checkable input element.
*
* @param string $type
* @param string $name
* @param string $value
* @param bool $checked
* @param array $attributes
* @return string
*/
private static function checkable($type, $name, $value, $checked, $attributes)
{
// -------------------------------------------------------
// Set the checked attribute.
// -------------------------------------------------------
if ($checked === true)
{
$attributes['checked'] = 'checked';
}
return static::input($type, $name, $value, $attributes);
}
/**
* Create a HTML textarea element.
*
* @param string $name
* @param string $value
* @param array $attributes
* @return string
*/
public static function textarea($name, $value = '', $attributes = array())
{
// -------------------------------------------------------
// Add the name to the attributes.
// -------------------------------------------------------
$attributes['name'] = $name;
// -------------------------------------------------------
// Set the default number of rows.
// -------------------------------------------------------
if ( ! isset($attributes['rows']))
{
$attributes['rows'] = 10;
}
// -------------------------------------------------------
// Set the default number of columns.
// -------------------------------------------------------
if ( ! isset($attributes['cols']))
{
$attributes['cols'] = 50;
}
return '<textarea'.HTML::attributes($attributes).'>'.Str::entities($value).'</textarea>'.PHP_EOL;
}
/**
* Create a HTML select element.
*
* @param string $name
* @param array $options
* @param string $selected
* @param array $attributes
* @return string
*/
public static function select($name, $options = array(), $selected = null, $attributes = array())
{
// -------------------------------------------------------
// Set the name attribute.
// -------------------------------------------------------
$attributes['name'] = $name;
// -------------------------------------------------------
// Initialize the options array.
// -------------------------------------------------------
$html_options = array();
// -------------------------------------------------------
// Build the options in HTML.
// -------------------------------------------------------
foreach ($options as $value => $display)
{
$option_attributes = array();
// -------------------------------------------------------
// Set the value attribute.
// -------------------------------------------------------
$option_attributes['value'] = $value;
// -------------------------------------------------------
// Set the selected attribute.
// -------------------------------------------------------
$option_attributes['selected'] = ($value == $selected) ? 'selected' : null;
// -------------------------------------------------------
// Add the option HTML to the array of options.
// -------------------------------------------------------
$html_options[] = '<option'.HTML::attributes($option_attributes).'>'.$display.'</option>';
}
return '<select'.HTML::attributes($attributes).'>'.implode('', $html_options).'</select>'.PHP_EOL;
}
/**
* Create a HTML input element.
*
* @param string $name
* @param mixed $value
* @param array $attributes
* @return string
*/
private static function input($type, $name, $value = null, $attributes = array())
{
// -------------------------------------------------------
// Set the type attribute.
// -------------------------------------------------------
$attributes['type'] = $type;
// -------------------------------------------------------
// Set the name attribute.
// -------------------------------------------------------
$attributes['name'] = $name;
// -------------------------------------------------------
// Set the value attribute.
// -------------------------------------------------------
$attributes['value'] = $value;
return '<input'.HTML::attributes($attributes).' />'.PHP_EOL;
}
}