FilterHelper.php

<?php
	class FilterHelper extends AppHelper{
		public $helpers = array(
			'Form', 'Html'
		);

		public $count = 0;

		public function form($model, $filter = array()) {
			if (empty($filter) || !isset($filter['fields'])) {
				$this->errors[] = 'There is no filters';
				return false;
			}

			$output = '<div class="filter-form"><h1>'.__('Search').'</h1>';
			foreach($filter['fields'] as $field => $options) {
				if (is_array($options)) {
					switch($field) {
						case 'active':
							$emptyText = __('status');
							break;

						default:
							$emptyText = __($field);
							break;
					}

					$emptyText = sprintf(__('Select the %s'), Inflector::humanize(str_replace('_id', '', $emptyText)));
					$output .= $this->Form->input(
						$field,
						array(
							'type' => 'select',
							'div' => false,
							'options' => $options,
							'empty' => $emptyText,
							'label' => false
						)
					);
				}
				else if(strstr($options, 'date')) {
					$output .= $this->Html->datePicker(array($options));
				}
				else{
					$output .= $this->Form->input(
						$options,
						array(
							'type' => 'text',
							'div' => false,
							'label' => false,
							'placeholder' => Inflector::humanize($options)
						)
					);
				}
	   		}

			$output .= $this->Form->button(
				$this->Image->image(
					'actions',
					'filter',
					array(
						'width' => '16px'
					)
				),
				array(
					'value' => 'filter',
					'name' => 'action',
					'title' => $this->niceTitleText('Filter results'),
					'div' => false
				)
			);
			$output .= '</div>';
			return $output;
		}

		/**
		 * Comment Template.
		 *
		 * @todo -c Implement .this needs to be sorted out.
		 *
		 * Copyright (c) 2009 Carl Sutton ( dogmatic69 )
		 *
		 * Licensed under The MIT License
		 * Redistributions of files must retain the above copyright notice.
		 *
		 * @filesource
		 * @copyright	 Copyright (c) 2009 Carl Sutton ( dogmatic69 )
		 * @link		  http://infinitas-cms.org
		 * @package	   sort
		 * @subpackage	sort.comments
		 * @license	   http://www.opensource.org/licenses/mit-license.php The MIT License
		 * @since		 0.5a
		 */
		public function clear($filter, $div = false) {
			if (!isset($filter['url'][0]) || empty($filter['url'][0]) || $filter['url'][0] == '/') {
				$filter['url'][0] = '/';
			}

			$out = '';
			if ($div) {
				$out .= '<div class="filter">';
			}

			$out .= '<div class="wrap">';
			$parts = explode( '/', $filter['url'][0] );
			$done = array();

			foreach($parts as $_f) {
				if (empty($_f) || in_array($_f, $done)) {
					continue;
				}

				$done[] = $_f;

				$text = explode('.', current(explode(':', $_f)));
				$text = (count($text ) > 1) ? $text[1] : $text[0];

				$text = $this->stripPluginName($text);
				if(substr($text, -3) == '_id') {
					$text = substr($text, 0, -3);
				}
				$out .= '<div class="left">'.
							'<div class="remove">'.
									$this->Html->link(
									Inflector::humanize($text),
									str_replace($_f, '', '/' . $this->request->url)
								).
							'</div>'.
						'</div>';
			}
			$out .= '</div>';
			if ($div) {
				$out .= '</div>';
			}

			return $out;
		}

		/**
		 * bulid a list of leters and numbers with filtered links to rows that
		 * start with that letter or number
		 *
		 * @return string ul->li list of things found
		 */
		public function alphabetFilter() {
			if(empty($this->request->params['models'])) {
				return false;
			}

			$model = implode('.', current($this->request->params['models']));
			$letters = ClassRegistry::init($model)->getLetterList();

			$return = array();
			foreach($letters as $key => $value) {
				$url = ($value == true) ? $this->__filterLink($key) : $key;
				if(is_array($url)) {
					$url = $this->Html->link(
						$key,
						InfinitasRouter::url($url),
						array(
							'title' => sprintf(__('Rows starting with "%s"'), $key)
						)
					);
				}
				$return[] = sprintf('<li>%s</li>', $url);
			}

			$return[] = sprintf('<li>%s</li>', $this->Html->link('All', $this->cleanCurrentUrl()));

			return '<div class="alphabet-filter"><ul>' . implode('', $return) . '</ul></div>';
		}

		/**
		 * create a link for some text against the display field
		 *
		 * @param string $text the text to show/filter with
		 * @return array the url cake style
		 */
		private function __filterLink($text = null) {
			if(!$text) {
				return false;
			}
			$model = implode('.', current($this->request->params['models']));

			$filter = array(
				ClassRegistry::init($model)->alias . '.' . ClassRegistry::init($model)->displayField => $text
			);

			$params = array_merge(parent::cleanCurrentUrl(), $this->request->params['named'], $this->request->params['pass'], $filter);

			return $params;
		}
	}