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freenetis-github/application/libraries/Grid.php @ 8d0578dc

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<?php defined('SYSPATH') or die('No direct script access.');
/*
* This file is part of open source system FreenetIS
* and it is released under GPLv3 licence.
*
* More info about licence can be found:
* http://www.gnu.org/licenses/gpl-3.0.html
*
* More info about project can be found:
* http://www.freenetis.org/
*
*/

require_once dirname(__FILE__) . '/grid/Field.php';
require_once dirname(__FILE__) . '/grid/Action_field.php';
require_once dirname(__FILE__) . '/grid/Action_conditional_field.php';
require_once dirname(__FILE__) . '/grid/Callback_field.php';
require_once dirname(__FILE__) . '/grid/Grouped_action_field.php';
require_once dirname(__FILE__) . '/grid/Order_field.php';
require_once dirname(__FILE__) . '/grid/Order_callback_field.php';
require_once dirname(__FILE__) . '/grid/Link_field.php';
require_once dirname(__FILE__) . '/grid/Order_link_field.php';
require_once dirname(__FILE__) . '/grid/Form_field.php';
require_once dirname(__FILE__) . '/grid/Order_form_field.php';

/**
* Grid for display data
*
* @method Field Field(string $column)
* @method Action_Field action_field(string $column)
* @method Link_Field link_field(string $column, string $column2)
* @method Order_Link_Field order_link_field(string $column, string $column2)
* @method Order_Field order_field(string $column)
* @method Order_callback_Field order_callback_field(string $column)
* @method Callback_Field callback_field(string $column)
* @method Grouped_Action_Field grouped_action_field(string $column)
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* @method Order_Form_Field order_form_field(string $column)
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*/
class Grid
{

protected $fields;
protected $action_fields;
protected $add_button = FALSE;
protected $back_button = FALSE;
protected $base_uri;
protected $template = 'grid_template';
protected $title;
protected $label = NULL;
protected $use_paginator = true;
protected $use_selector = true;
protected $separator = '<br /><br />';
protected $show_labels = true;
protected $selector_increace = 30;
protected $selector_min = 10;
protected $selector_max_multiplier = 5;
protected $current = 10;
protected $style = 'classic';
protected $uri_segment = 3;
protected $items_per_page = 10;
protected $total_items = 0;
protected $base_url = '';
protected $order_by;
protected $a_rec_per_page;
protected $variables;
protected $order_by_direction;
protected $limit_results;
protected $record_per_page = NULL;
protected $url_array_ofset = 0;
protected $query_string;
protected $filter = '';
protected $form = FALSE;
protected $form_submit_value = '';
protected $form_extra_buttons = array();
protected $buttons = array();
protected $id = NULL;
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protected $method = 'post';
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private $first_add_button;

/**
* Grid construct
*
* @param type $base_uri
* @param type $title
* @param type $config
* @param type $template
*/
public function __construct($base_uri, $title, $config = NULL, $template = FALSE)
{
if ($template)
{
$this->template = $template;
}
if (!text::starts_with($base_uri, url::base()))
{
$base_uri = url_lang::base() . $base_uri;
}
$this->template = new View($this->template);
$this->template->base_uri = $this->base_uri = $base_uri;
$this->template->title = $title;
$this->template->label = (isset($config['total_items'])) ? __('Total items') . ': ' . $config['total_items'] : '';
if (is_array($config))
{
$this->initialize($config);
}
// autoset id from url if empty
if (!$this->id)
$this->id = str_replace(array('/','_'), '-', url_lang::current(2)).'-grid';

$this->first_add_button = true;
}

/**
* Initialize grid with given config
*
* @param array $config
*/
public function initialize($config = array())
{
// Assign config values to the object
foreach ($config as $key => $value)
{
if (property_exists($this, $key))
{
$this->$key = $value;
}
}

if ($this->use_paginator)
{
$this->pagination = new Pagination(array
(
'base_url' => $this->base_url,
'uri_segment' => $this->uri_segment,
'total_items' => $this->total_items,
'items_per_page' => $this->items_per_page,
'style' => $this->style
));
}

if ($this->use_selector)
{
$this->selector = new Selector(array
(
'current' => $this->current,
'selector_increace' => $this->selector_increace,
'selector_min' => $this->selector_min,
'selector_max_multiplier' => $this->selector_max_multiplier
));
}

$this->template->show_labels = $this->show_labels;
}

/**
* Sets values
*
* @param string $key
* @param mixed $value
*/
public function __set($key, $value)
{
$this->$key = $value;
}

/**
* Adds new button to the top of grid
*
* @param type $uri URI of button
* @param type $label Label of button
* @param type $options Options
* @param type $help Help hint
*/
public function add_new_button($uri, $label, $options = array(), $help = '')
{
$this->buttons[] = html::anchor(
$uri, __($label), $options
) . (($help == '') ? '' : '&nbsp;' . $help);
}

/**
* Adds back button to the top of grid
*
* @param string $label Label of button
*/
public function add_back_button($label)
{
$this->template->back_button = "<a href=\"javascript:history.go(-1)\">" . $label . "</a>";
}

/**
* Magic __call method. Creates a new form element object.
*
* @throws Kohana_Exception
* @param string input type
* @param string input name
* @return object
*/
public function __call($method, $args)
{
// Class name
$field = ucfirst($method);
// Create the input
if ($field == 'Order_field' || $field == 'Order_callback_field' ||
$field == 'Order_form_field' || $field == 'Order_link_field')
{
$arguments = array
(
'order_by' => $this->order_by,
'order_by_direction' => $this->order_by_direction,
'limit_results' => $this->limit_results,
'record_per_page' => $this->record_per_page,
'url_array_ofset' => $this->url_array_ofset,
'variables' => $this->variables,
'query_string' => $this->query_string,
'use_selector' => $this->use_selector,
'use_paginator' => $this->use_paginator
);
if (!isset($args[1]))
{
$args[1] = NULL;
}
$field = new $field($args[0], $args[1], $arguments);
}
else if ($field == 'Grouped_action_field')
{
$field = new Grouped_action_field(isset($args[0]) ? $args[0] : NULL);
}
else if ($field == 'Link_field')
{
$field = new $field($args[0], @$args[1]);
}
else
{
$field = new $field($args[0]);
}

if (!($field instanceof Field))
{
throw new Kohana_Exception('grige.unknown_field', get_class($field));
}

if ($field instanceof Grid_Actionfield)
{
$this->action_fields[] = $field;
}
else
{
$this->fields[] = $field;
}

if ($field instanceof Form_Field || $field instanceof Order_Form_Field)
{
$this->form = TRUE;
}

return $field;
}

/**
* Load satasource
*
* @param object $items
*/
public function datasource($items)
{
$this->template->items = $items;
}

/**
* Renders grid
*
* @return string
*/
public function render()
{
$this->template->buttons = $this->buttons;
$this->template->filter = $this->filter;
$this->template->fields = $this->fields;
$this->template->action_fields = $this->action_fields;
$this->template->paginator = ($this->use_paginator) ? $this->pagination->create_links('digg') : '';
$this->template->selector = ($this->use_selector) ? $this->selector->create() : '';
$this->template->separator = $this->separator;
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$this->template->method = $this->method;
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$this->template->form = $this->form;
$this->template->form_extra_buttons = $this->form_extra_buttons;
$this->template->form_submit_value = ($this->form_submit_value != '') ? $this->form_submit_value : __('Update');
$this->template->id = $this->id;
return $this->template->render();
}

/**
* Renders grid
*
* @return string
*/
public function __toString()
{
return $this->render();
}

}