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Adding Paginator helper
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@3629 3807eeeb-6ff5-0310-8944-8be069107fe0
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251
cake/libs/view/helpers/paginator.php
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251
cake/libs/view/helpers/paginator.php
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<?php
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/* SVN FILE: $Id$ */
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/**
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* Pagination Helper class file.
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*
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* Generates pagination links
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*
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* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright (c) 2006, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright (c) 2006, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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* @since CakePHP v 1.2.0
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Html Helper class for easy use of HTML widgets.
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*
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* HtmlHelper encloses all methods needed while working with HTML pages.
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*
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* @package cake
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* @subpackage cake.cake.libs.view.helpers
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*/
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class PaginatorHelper extends Helper {
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/**
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* Helper dependencies
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*
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* @var array
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*/
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var $helpers = array('Html', 'Ajax');
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/**
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* Holds the default model for paged recordsets
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*
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* @var string
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*/
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var $__defaultModel = null;
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function __params($model = null) {
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if ($model == null) {
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$model = $this->defaultModel();
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}
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if (!isset($this->params['paging']) || empty($this->params['paging'][$model])) {
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return null;
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}
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return $this->params['paging'][$model];
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}
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/**
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* Gets the current page of the in the recordset for the given model
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*
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* @param string $model
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* @return string
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*/
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function current($model = null) {
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if ($model == null) {
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$model = $this->defaultModel();
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}
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$params = $this->__params[$model];
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if (isset($params['options']['page'])) {
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return $params['options']['page'];
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}
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return null;
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}
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/**
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* Generates a "previous" link for a set of paged records
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*
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* @param string $title
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* @param array $options
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* @param string $disabledTitle
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* @param array $disabledOptions
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* @return string
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*/
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function prev($title = '<< Previous', $options = array(), $disabledTitle = null, $disabledOptions = array()) {
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return $this->__pagingLink('Prev', $title, $options, $disabledTitle, $disabledOptions);
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}
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/**
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* Generates a "next" link for a set of paged records
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*
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* @param string $title
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* @param array $options
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* @param string $disabledTitle
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* @param array $disabledOptions
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* @return string
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*/
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function next($title = 'Next >>', $options = array(), $disabledTitle = null, $disabledOptions = array()) {
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return $this->__pagingLink('Next', $title, $options, $disabledTitle, $disabledOptions);
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}
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/**
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* Protected method
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*
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*/
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function __pagingLink($which, $title = null, $options = array(), $disabledTitle = null, $disabledOptions = array()) {
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$check = 'has' . $which;
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$options = am(
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array(
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'model' => $this->defaultModel(),
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'step' => 1,
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'url' => array(),
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'escape' => true
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),
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$options
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);
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$paging = $this->__params($options['model']);
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if ($this->{$check}() || $disabledTitle !== null || !empty($disabledOptions)) {
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if (!$this->{$check}()) {
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$options = am($options, $disabledOptions);
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if (!empty($disabledTitle) && $disabledTitle !== true) {
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$title = $disabledTitle;
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}
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}
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$keys = array('url', 'model', 'escape');
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foreach ($keys as $key) {
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${$key} = null;
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if (isset($options[$key])) {
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${$key} = $options[$key];
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unset($options[$key]);
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}
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}
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} else {
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return null;
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}
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if (is_array($url)) {
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if ($which == 'Prev') {
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$options['step'] *= -1;
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}
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$url = am(
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array_diff_assoc($paging['options'], $paging['defaults']),
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array('page' => ($paging['options']['page'] + $options['step'])),
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$url
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);
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} elseif (is_string($url)) {
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$url .= '/' . ($paging['options']['page'] + $options['step']);
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}
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if ($this->{$check}()) {
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$obj = 'Html';
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if (isset($options['update'])) {
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$obj = 'Ajax';
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}
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return $this->{$obj}->link($title, $url, $options, false, $escape);
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} else {
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return $this->Html->div(null, $title, $options, $escape);
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}
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}
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/**
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* Returns true if the given result set is not at the first page
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*
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* @param string $model
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* @return return boolean
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*/
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function hasPrev($model = null) {
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return $this->__hasPage($model, 'prev');
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}
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/**
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* Returns true if the given result set is not at the last page
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*
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* @param string $model
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* @return return boolean
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*/
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function hasNext($model = null) {
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return $this->__hasPage($model, 'next');
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}
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/**
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* Protected method
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*
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*/
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function __hasPage($model, $page) {
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if ($model == null) {
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$model = $this->defaultModel();
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}
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if (is_array($this->params['paging'][$model])) {
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if ($this->params['paging'][$model]["{$page}Page"] == true) {
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return true;
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}
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}
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return false;
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}
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/**
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* Gets the default model of the paged sets
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*
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* @return string
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*/
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function defaultModel() {
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if ($this->__defaultModel != null) {
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return $this->__defaultModel;
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}
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$models = array_keys($this->params['paging']);
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$this->__defaultModel = $models[0];
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return $this->__defaultModel;
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}
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/**
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* Returns a counter string for the paged result set
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*
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* @param array $options
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* @return string
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*/
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function counter($options = array()) {
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$options = am(
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array(
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'model' => $this->defaultModel(),
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'format' => 'pages',
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'separator' => ' of '
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),
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$options
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);
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$paging = $this->__params($options['model']);
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$start = $paging['options']['page'] > 1 ? ($paging['options']['page'] - 1) * ($paging['options']['limit']) + 1 : '1';
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$end = ($paging['count'] < ($start + $paging['options']['limit'] - 1)) ? $paging['count'] : ($start + $paging['options']['limit'] - 1);
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switch ($options['format']) {
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case 'range':
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if (!is_array($options['separator'])) {
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$options['separator'] = array(' - ', $options['separator']);
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}
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$out = $start . $options['separator'][0] . $end . $options['separator'][1] . $paging['count'];
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break;
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case 'pages':
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$out = $paging['options']['page'] . $options['separator'] . $paging['pageCount'];
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break;
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default:
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$replace = array(
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'%page%' => $paging['options']['page'],
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'%pages%' => $paging['pageCount'],
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'%current%' => $paging['current'],
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'%count%' => $paging['count'],
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'%start%' => $start,
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'%end%' => $end
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);
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$out = r(array_keys($replace), array_values($replace), $options['format']);
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break;
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}
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return $this->output($out);
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}
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}
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?>
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