540 lines
12 KiB
PHP
540 lines
12 KiB
PHP
<?php
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/**
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* CodeIgniter
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*
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* An open source application development framework for PHP
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*
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* This content is released under the MIT License (MIT)
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*
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* Copyright (c) 2019 - 2022, CodeIgniter Foundation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* @package CodeIgniter
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* @author EllisLab Dev Team
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* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/)
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* @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/)
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* @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/)
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* @license https://opensource.org/licenses/MIT MIT License
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* @link https://codeigniter.com
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* @since Version 1.3.1
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* @filesource
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*/
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defined('BASEPATH') OR exit('No direct script access allowed');
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/**
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* HTML Table Generating Class
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*
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* Lets you create tables manually or from database result objects, or arrays.
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*
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* @package CodeIgniter
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* @subpackage Libraries
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* @category HTML Tables
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* @author EllisLab Dev Team
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* @link https://codeigniter.com/userguide3/libraries/table.html
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*/
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class CI_Table {
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/**
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* Data for table rows
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*
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* @var array
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*/
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public $rows = array();
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/**
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* Data for table heading
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*
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* @var array
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*/
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public $heading = array();
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/**
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* Whether or not to automatically create the table header
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*
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* @var bool
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*/
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public $auto_heading = TRUE;
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/**
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* Table caption
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*
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* @var string
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*/
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public $caption = NULL;
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/**
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* Table layout template
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*
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* @var array
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*/
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public $template = NULL;
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/**
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* Newline setting
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*
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* @var string
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*/
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public $newline = "\n";
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/**
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* Contents of empty cells
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*
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* @var string
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*/
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public $empty_cells = '';
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/**
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* Callback for custom table layout
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*
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* @var function
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*/
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public $function = NULL;
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/**
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* Set the template from the table config file if it exists
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*
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* @param array $config (default: array())
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* @return void
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*/
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public function __construct($config = array())
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{
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// initialize config
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foreach ($config as $key => $val)
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{
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$this->template[$key] = $val;
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}
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log_message('info', 'Table Class Initialized');
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}
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// --------------------------------------------------------------------
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/**
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* Set the template
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*
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* @param array $template
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* @return bool
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*/
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public function set_template($template)
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{
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if ( ! is_array($template))
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{
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return FALSE;
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}
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$this->template = $template;
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return TRUE;
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}
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// --------------------------------------------------------------------
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/**
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* Set the table heading
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*
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* Can be passed as an array or discreet params
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*
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* @param mixed
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* @return CI_Table
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*/
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public function set_heading($args = array())
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{
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$this->heading = $this->_prep_args(func_get_args());
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return $this;
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}
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// --------------------------------------------------------------------
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/**
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* Set columns. Takes a one-dimensional array as input and creates
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* a multi-dimensional array with a depth equal to the number of
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* columns. This allows a single array with many elements to be
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* displayed in a table that has a fixed column count.
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*
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* @param array $array
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* @param int $col_limit
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* @return array
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*/
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public function make_columns($array = array(), $col_limit = 0)
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{
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if ( ! is_array($array) OR count($array) === 0 OR ! is_int($col_limit))
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{
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return FALSE;
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}
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// Turn off the auto-heading feature since it's doubtful we
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// will want headings from a one-dimensional array
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$this->auto_heading = FALSE;
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if ($col_limit === 0)
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{
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return $array;
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}
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$new = array();
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do
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{
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$temp = array_splice($array, 0, $col_limit);
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if (count($temp) < $col_limit)
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{
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for ($i = count($temp); $i < $col_limit; $i++)
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{
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$temp[] = ' ';
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}
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}
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$new[] = $temp;
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}
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while (count($array) > 0);
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return $new;
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}
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// --------------------------------------------------------------------
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/**
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* Set "empty" cells
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*
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* Can be passed as an array or discreet params
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*
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* @param mixed $value
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* @return CI_Table
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*/
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public function set_empty($value)
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{
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$this->empty_cells = $value;
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return $this;
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}
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// --------------------------------------------------------------------
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/**
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* Add a table row
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*
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* Can be passed as an array or discreet params
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*
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* @param mixed
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* @return CI_Table
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*/
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public function add_row($args = array())
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{
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$this->rows[] = $this->_prep_args(func_get_args());
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return $this;
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}
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// --------------------------------------------------------------------
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/**
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* Prep Args
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*
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* Ensures a standard associative array format for all cell data
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*
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* @param array
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* @return array
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*/
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protected function _prep_args($args)
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{
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// If there is no $args[0], skip this and treat as an associative array
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// This can happen if there is only a single key, for example this is passed to table->generate
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// array(array('foo'=>'bar'))
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if (isset($args[0]) && count($args) === 1 && is_array($args[0]) && ! isset($args[0]['data']))
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{
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$args = $args[0];
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}
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foreach ($args as $key => $val)
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{
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is_array($val) OR $args[$key] = array('data' => $val);
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}
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return $args;
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}
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// --------------------------------------------------------------------
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/**
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* Add a table caption
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*
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* @param string $caption
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* @return CI_Table
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*/
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public function set_caption($caption)
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{
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$this->caption = $caption;
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return $this;
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}
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// --------------------------------------------------------------------
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/**
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* Generate the table
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*
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* @param mixed $table_data
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* @return string
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*/
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public function generate($table_data = NULL)
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{
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// The table data can optionally be passed to this function
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// either as a database result object or an array
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if ( ! empty($table_data))
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{
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if ($table_data instanceof CI_DB_result)
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{
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$this->_set_from_db_result($table_data);
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}
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elseif (is_array($table_data))
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{
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$this->_set_from_array($table_data);
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}
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}
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// Is there anything to display? No? Smite them!
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if (empty($this->heading) && empty($this->rows))
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{
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return 'Undefined table data';
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}
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// Compile and validate the template date
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$this->_compile_template();
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// Validate a possibly existing custom cell manipulation function
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if (isset($this->function) && ! is_callable($this->function))
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{
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$this->function = NULL;
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}
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// Build the table!
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$out = $this->template['table_open'].$this->newline;
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// Add any caption here
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if ($this->caption)
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{
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$out .= '<caption>'.$this->caption.'</caption>'.$this->newline;
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}
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// Is there a table heading to display?
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if ( ! empty($this->heading))
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{
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$out .= $this->template['thead_open'].$this->newline.$this->template['heading_row_start'].$this->newline;
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foreach ($this->heading as $heading)
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{
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$temp = $this->template['heading_cell_start'];
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foreach ($heading as $key => $val)
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{
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if ($key !== 'data')
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{
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$temp = str_replace('<th', '<th '.$key.'="'.$val.'"', $temp);
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}
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}
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$out .= $temp.(isset($heading['data']) ? $heading['data'] : '').$this->template['heading_cell_end'];
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}
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$out .= $this->template['heading_row_end'].$this->newline.$this->template['thead_close'].$this->newline;
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}
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// Build the table rows
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if ( ! empty($this->rows))
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{
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$out .= $this->template['tbody_open'].$this->newline;
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$i = 1;
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foreach ($this->rows as $row)
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{
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if ( ! is_array($row))
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{
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break;
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}
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// We use modulus to alternate the row colors
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$name = fmod($i++, 2) ? '' : 'alt_';
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$out .= $this->template['row_'.$name.'start'].$this->newline;
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foreach ($row as $cell)
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{
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$temp = $this->template['cell_'.$name.'start'];
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foreach ($cell as $key => $val)
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{
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if ($key !== 'data')
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{
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$temp = str_replace('<td', '<td '.$key.'="'.$val.'"', $temp);
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}
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}
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$cell = isset($cell['data']) ? $cell['data'] : '';
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$out .= $temp;
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if ($cell === '' OR $cell === NULL)
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{
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$out .= $this->empty_cells;
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}
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elseif (isset($this->function))
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{
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$out .= call_user_func($this->function, $cell);
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}
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else
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{
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$out .= $cell;
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}
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$out .= $this->template['cell_'.$name.'end'];
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}
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$out .= $this->template['row_'.$name.'end'].$this->newline;
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}
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$out .= $this->template['tbody_close'].$this->newline;
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}
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$out .= $this->template['table_close'];
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// Clear table class properties before generating the table
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$this->clear();
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return $out;
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}
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// --------------------------------------------------------------------
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/**
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* Clears the table arrays. Useful if multiple tables are being generated
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*
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* @return CI_Table
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*/
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public function clear()
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{
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$this->rows = array();
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$this->heading = array();
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$this->auto_heading = TRUE;
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return $this;
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}
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// --------------------------------------------------------------------
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/**
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* Set table data from a database result object
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*
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* @param CI_DB_result $object Database result object
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* @return void
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*/
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protected function _set_from_db_result($object)
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{
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// First generate the headings from the table column names
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if ($this->auto_heading === TRUE && empty($this->heading))
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{
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$this->heading = $this->_prep_args($object->list_fields());
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}
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foreach ($object->result_array() as $row)
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{
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$this->rows[] = $this->_prep_args($row);
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}
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}
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// --------------------------------------------------------------------
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/**
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* Set table data from an array
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*
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* @param array $data
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* @return void
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*/
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protected function _set_from_array($data)
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{
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if ($this->auto_heading === TRUE && empty($this->heading))
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{
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$this->heading = $this->_prep_args(array_shift($data));
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}
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foreach ($data as &$row)
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{
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$this->rows[] = $this->_prep_args($row);
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}
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}
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// --------------------------------------------------------------------
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/**
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* Compile Template
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*
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* @return void
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*/
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protected function _compile_template()
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{
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if ($this->template === NULL)
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{
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$this->template = $this->_default_template();
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return;
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}
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$this->temp = $this->_default_template();
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foreach (array('table_open', 'thead_open', 'thead_close', 'heading_row_start', 'heading_row_end', 'heading_cell_start', 'heading_cell_end', 'tbody_open', 'tbody_close', 'row_start', 'row_end', 'cell_start', 'cell_end', 'row_alt_start', 'row_alt_end', 'cell_alt_start', 'cell_alt_end', 'table_close') as $val)
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{
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if ( ! isset($this->template[$val]))
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{
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$this->template[$val] = $this->temp[$val];
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}
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}
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}
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// --------------------------------------------------------------------
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/**
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* Default Template
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*
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* @return array
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*/
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protected function _default_template()
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{
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return array(
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'table_open' => '<table border="0" cellpadding="4" cellspacing="0">',
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'thead_open' => '<thead>',
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'thead_close' => '</thead>',
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'heading_row_start' => '<tr>',
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'heading_row_end' => '</tr>',
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'heading_cell_start' => '<th>',
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'heading_cell_end' => '</th>',
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'tbody_open' => '<tbody>',
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'tbody_close' => '</tbody>',
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'row_start' => '<tr>',
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'row_end' => '</tr>',
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'cell_start' => '<td>',
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'cell_end' => '</td>',
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'row_alt_start' => '<tr>',
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'row_alt_end' => '</tr>',
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'cell_alt_start' => '<td>',
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'cell_alt_end' => '</td>',
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'table_close' => '</table>'
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);
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}
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}
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