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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 - 2019, 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. (https://ellislab.com/) * @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/) * @license https://opensource.org/licenses/MIT MIT License * @link https://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 https://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; return $this; } // -------------------------------------------------------------------- /** * 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 $object Database result object * @return void */ protected function _set_from_db_result($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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