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<?php
/**
* CodeIgniter
*
* An open source application development framework for PHP
*
* This content is released under the MIT License (MIT)
*
* Copyright (c) 2014 - 2015, British Columbia Institute of Technology
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
* @package CodeIgniter
* @author EllisLab Dev Team
* @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (http://ellislab.com/)
* @copyright Copyright (c) 2014 - 2015, British Columbia Institute of Technology (http://bcit.ca/)
* @license http://opensource.org/licenses/MIT MIT License
* @link http://codeigniter.com
* @since Version 1.3.1
* @filesource
*/
defined('BASEPATH') OR exit('No direct script access allowed');
/**
* HTML Table Generating Class
*
* Lets you create tables manually or from database result objects, or arrays.
*
* @package CodeIgniter
* @subpackage Libraries
* @category HTML Tables
* @author EllisLab Dev Team
* @link http://codeigniter.com/user_guide/libraries/table.html
*/
class CI_Table {
/**
* Data for table rows
*
* @var array
*/
public $rows = array();
/**
* Data for table heading
*
* @var array
*/
public $heading = array();
/**
* Whether or not to automatically create the table header
*
* @var bool
*/
public $auto_heading = TRUE;
/**
* Table caption
*
* @var string
*/
public $caption = NULL;
/**
* Table layout template
*
* @var array
*/
public $template = NULL;
/**
* Newline setting
*
* @var string
*/
public $newline = "\n";
/**
* Contents of empty cells
*
* @var string
*/
public $empty_cells = '';
/**
* Callback for custom table layout
*
* @var function
*/
public $function = NULL;
/**
* Set the template from the table config file if it exists
*
* @param array $config (default: array())
* @return void
*/
public function __construct($config = array())
{
// initialize config
foreach ($config as $key => $val)
{
$this->template[$key] = $val;
}
log_message('info', 'Table Class Initialized');
}
// --------------------------------------------------------------------
/**
* Set the template
*
* @param array $template
* @return bool
*/
public function set_template($template)
{
if ( ! is_array($template))
{
return FALSE;
}
$this->template = $template;
return TRUE;
}
// --------------------------------------------------------------------
/**
* Set the table heading
*
* Can be passed as an array or discreet params
*
* @param mixed
* @return CI_Table
*/
public function set_heading($args = array())
{
$this->heading = $this->_prep_args(func_get_args());
return $this;
}
// --------------------------------------------------------------------
/**
* Set columns. Takes a one-dimensional array as input and creates
* a multi-dimensional array with a depth equal to the number of
* columns. This allows a single array with many elements to be
* displayed in a table that has a fixed column count.
*
* @param array $array
* @param int $col_limit
* @return array
*/
public function make_columns($array = array(), $col_limit = 0)
{
if ( ! is_array($array) OR count($array) === 0 OR ! is_int($col_limit))
{
return FALSE;
}
// Turn off the auto-heading feature since it's doubtful we
// will want headings from a one-dimensional array
$this->auto_heading = FALSE;
if ($col_limit === 0)
{
return $array;
}
$new = array();
do
{
$temp = array_splice($array, 0, $col_limit);
if (count($temp) < $col_limit)
{
for ($i = count($temp); $i < $col_limit; $i++)
{
$temp[] = ' ';
}
}
$new[] = $temp;
}
while (count($array) > 0);
return $new;
}
// --------------------------------------------------------------------
/**
* Set "empty" cells
*
* Can be passed as an array or discreet params
*
* @param mixed $value
* @return CI_Table
*/
public function set_empty($value)
{
$this->empty_cells = $value;
return $this;
}
// --------------------------------------------------------------------
/**
* Add a table row
*
* Can be passed as an array or discreet params
*
* @param mixed
* @return CI_Table
*/
public function add_row($args = array())
{
$this->rows[] = $this->_prep_args(func_get_args());
return $this;
}
// --------------------------------------------------------------------
/**
* Prep Args
*
* Ensures a standard associative array format for all cell data
*
* @param array
* @return array
*/
protected function _prep_args($args)
{
// If there is no $args[0], skip this and treat as an associative array
// This can happen if there is only a single key, for example this is passed to table->generate
// array(array('foo'=>'bar'))
if (isset($args[0]) && count($args) === 1 && is_array($args[0]) && ! isset($args[0]['data']))
{
$args = $args[0];
}
foreach ($args as $key => $val)
{
is_array($val) OR $args[$key] = array('data' => $val);
}
return $args;
}
// --------------------------------------------------------------------
/**
* Add a table caption
*
* @param string $caption
* @return CI_Table
*/
public function set_caption($caption)
{
$this->caption = $caption;
}
// --------------------------------------------------------------------
/**
* Generate the table
*
* @param mixed $table_data
* @return string
*/
public function generate($table_data = NULL)
{
// The table data can optionally be passed to this function
// either as a database result object or an array
if ( ! empty($table_data))
{
if ($table_data instanceof CI_DB_result)
{
$this->_set_from_db_result($table_data);
}
elseif (is_array($table_data))
{
$this->_set_from_array($table_data);
}
}
// Is there anything to display? No? Smite them!
if (empty($this->heading) && empty($this->rows))
{
return 'Undefined table data';
}
// Compile and validate the template date
$this->_compile_template();
// Validate a possibly existing custom cell manipulation function
if (isset($this->function) && ! is_callable($this->function))
{
$this->function = NULL;
}
// Build the table!
$out = $this->template['table_open'].$this->newline;
// Add any caption here
if ($this->caption)
{
$out .= '<caption>'.$this->caption.'</caption>'.$this->newline;
}
// Is there a table heading to display?
if ( ! empty($this->heading))
{
$out .= $this->template['thead_open'].$this->newline.$this->template['heading_row_start'].$this->newline;
foreach ($this->heading as $heading)
{
$temp = $this->template['heading_cell_start'];
foreach ($heading as $key => $val)
{
if ($key !== 'data')
{
$temp = str_replace('<th', '<th '.$key.'="'.$val.'"', $temp);
}
}
$out .= $temp.(isset($heading['data']) ? $heading['data'] : '').$this->template['heading_cell_end'];
}
$out .= $this->template['heading_row_end'].$this->newline.$this->template['thead_close'].$this->newline;
}
// Build the table rows
if ( ! empty($this->rows))
{
$out .= $this->template['tbody_open'].$this->newline;
$i = 1;
foreach ($this->rows as $row)
{
if ( ! is_array($row))
{
break;
}
// We use modulus to alternate the row colors
$name = fmod($i++, 2) ? '' : 'alt_';
$out .= $this->template['row_'.$name.'start'].$this->newline;
foreach ($row as $cell)
{
$temp = $this->template['cell_'.$name.'start'];
foreach ($cell as $key => $val)
{
if ($key !== 'data')
{
$temp = str_replace('<td', '<td '.$key.'="'.$val.'"', $temp);
}
}
$cell = isset($cell['data']) ? $cell['data'] : '';
$out .= $temp;
if ($cell === '' OR $cell === NULL)
{
$out .= $this->empty_cells;
}
elseif (isset($this->function))
{
$out .= call_user_func($this->function, $cell);
}
else
{
$out .= $cell;
}
$out .= $this->template['cell_'.$name.'end'];
}
$out .= $this->template['row_'.$name.'end'].$this->newline;
}
$out .= $this->template['tbody_close'].$this->newline;
}
$out .= $this->template['table_close'];
// Clear table class properties before generating the table
$this->clear();
return $out;
}
// --------------------------------------------------------------------
/**
* Clears the table arrays. Useful if multiple tables are being generated
*
* @return CI_Table
*/
public function clear()
{
$this->rows = array();
$this->heading = array();
$this->auto_heading = TRUE;
return $this;
}
// --------------------------------------------------------------------
/**
* Set table data from a database result object
*
* @param CI_DB_result $db_result Database result object
* @return void
*/
protected function _set_from_db_result($object)
{
// First generate the headings from the table column names
if ($this->auto_heading === TRUE && empty($this->heading))
{
$this->heading = $this->_prep_args($object->list_fields());
}
foreach ($object->result_array() as $row)
{
$this->rows[] = $this->_prep_args($row);
}
}
// --------------------------------------------------------------------
/**
* Set table data from an array
*
* @param array $data
* @return void
*/
protected function _set_from_array($data)
{
if ($this->auto_heading === TRUE && empty($this->heading))
{
$this->heading = $this->_prep_args(array_shift($data));
}
foreach ($data as &$row)
{
$this->rows[] = $this->_prep_args($row);
}
}
// --------------------------------------------------------------------
/**
* Compile Template
*
* @return void
*/
protected function _compile_template()
{
if ($this->template === NULL)
{
$this->template = $this->_default_template();
return;
}
$this->temp = $this->_default_template();
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 $val)
{
if ( ! isset($this->template[$val]))
{
$this->template[$val] = $this->temp[$val];
}
}
}
// --------------------------------------------------------------------
/**
* Default Template
*
* @return array
*/
protected function _default_template()
{
return array(
'table_open' => '<table border="0" cellpadding="4" cellspacing="0">',
'thead_open' => '<thead>',
'thead_close' => '</thead>',
'heading_row_start' => '<tr>',
'heading_row_end' => '</tr>',
'heading_cell_start' => '<th>',
'heading_cell_end' => '</th>',
'tbody_open' => '<tbody>',
'tbody_close' => '</tbody>',
'row_start' => '<tr>',
'row_end' => '</tr>',
'cell_start' => '<td>',
'cell_end' => '</td>',
'row_alt_start' => '<tr>',
'row_alt_end' => '</tr>',
'cell_alt_start' => '<td>',
'cell_alt_end' => '</td>',
'table_close' => '</table>'
);
}
}
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