var $rows = array();

var $heading = array();

var $auto_heading = TRUE;

var $caption = NULL;

var $template = NULL;

var $newline = "\n";

var $empty_cells = "";

var $function = FALSE;

public function __construct()

{

log_message('debug', "Table Class Initialized");

}

// --------------------------------------------------------------------

/**

function set_template($template)

{

if ( ! is_array($template))

{

return FALSE;

}

$this->template = $template;

}

// --------------------------------------------------------------------

/**

function set_heading()

{

$args = func_get_args();

$this->heading = $this->_prep_args($args);

}

// --------------------------------------------------------------------

/**

function make_columns($array = array(), $col_limit = 0)

{

if ( ! is_array($array) OR count($array) == 0)

{

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();

while (count($array) > 0)

{

$temp = array_splice($array, 0, $col_limit);

if (count($temp) < $col_limit)

{

for ($i = count($temp); $i < $col_limit; $i++)

{

$temp[] = '&nbsp;';

}

}

$new[] = $temp;

}

return $new;

}

// --------------------------------------------------------------------

/**

function set_empty($value)

{

$this->empty_cells = $value;

}

// --------------------------------------------------------------------

/**

function add_row()

{

$args = func_get_args();

$this->rows[] = $this->_prep_args($args);

}

// --------------------------------------------------------------------

/**

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($args[0]) AND (count($args) == 1 && is_array($args[0])))

{

// args sent as indexed array

if ( ! isset($args[0]['data']))

{

foreach ($args[0] as $key => $val)

{

if (is_array($val) && isset($val['data']))

{

$args[$key] = $val;

}

else

{

$args[$key] = array('data' => $val);

}

}

}

}

else

{

foreach ($args as $key => $val)

{

if ( ! is_array($val))

{

$args[$key] = array('data' => $val);

}

}

}

return $args;

}

// --------------------------------------------------------------------

/**

function set_caption($caption)

{

$this->caption = $caption;

}

// --------------------------------------------------------------------

/**

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 ( ! is_null($table_data))

{

if (is_object($table_data))

{

$this->_set_from_object($table_data);

}

elseif (is_array($table_data))

{

$set_heading = (count($this->heading) == 0 AND $this->auto_heading == FALSE) ? FALSE : TRUE;

$this->_set_from_array($table_data, $set_heading);

}

}

// Is there anything to display? No? Smite them!

if (count($this->heading) == 0 AND count($this->rows) == 0)

{

return 'Undefined table data';

}

// Compile and validate the template date

$this->_compile_template();

// set a custom cell manipulation function to a locally scoped variable so its callable

$function = $this->function;

// Build the table!

$out = $this->template['table_open'];

$out .= $this->newline;

// Add any caption here

if ($this->caption)

{

$out .= $this->newline;

$out .= '<caption>' . $this->caption . '</caption>';

$out .= $this->newline;

}

// Is there a table heading to display?

if (count($this->heading) > 0)

{

$out .= $this->template['thead_open'];

$out .= $this->newline;

$out .= $this->template['heading_row_start'];

$out .= $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;

$out .= isset($heading['data']) ? $heading['data'] : '';

$out .= $this->template['heading_cell_end'];

}

$out .= $this->template['heading_row_end'];

$out .= $this->newline;

$out .= $this->template['thead_close'];

$out .= $this->newline;

}

// Build the table rows

if (count($this->rows) > 0)

{

$out .= $this->template['tbody_open'];

$out .= $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'];

$out .= $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;

}

else

{

if ($function !== FALSE && is_callable($function))

{

$out .= call_user_func($function, $cell);

}

else

{

$out .= $cell;

}

}

$out .= $this->template['cell_'.$name.'end'];

}

$out .= $this->template['row_'.$name.'end'];

$out .= $this->newline;

}

$out .= $this->template['tbody_close'];

$out .= $this->newline;

}

$out .= $this->template['table_close'];

// Clear table class properties before generating the table

$this->clear();

return $out;

}

// --------------------------------------------------------------------

/**

function clear()

{

$this->rows = array();

$this->heading = array();

$this->auto_heading = TRUE;

}

// --------------------------------------------------------------------

/**

function _set_from_object($query)

{

if ( ! is_object($query))

{

return FALSE;

}

// First generate the headings from the table column names

if (count($this->heading) == 0)

{

if ( ! method_exists($query, 'list_fields'))

{

return FALSE;

}

$this->heading = $this->_prep_args($query->list_fields());

}

// Next blast through the result array and build out the rows

if ($query->num_rows() > 0)

{

foreach ($query->result_array() as $row)

{

$this->rows[] = $this->_prep_args($row);

}

}

}

// --------------------------------------------------------------------

/**

function _set_from_array($data, $set_heading = TRUE)

{

if ( ! is_array($data) OR count($data) == 0)

{

return FALSE;

}

$i = 0;

foreach ($data as $row)

{

// If a heading hasn't already been set we'll use the first row of the array as the heading

if ($i == 0 AND count($data) > 1 AND count($this->heading) == 0 AND $set_heading == TRUE)

{

$this->heading = $this->_prep_args($row);

}

else

{

$this->rows[] = $this->_prep_args($row);

}

$i++;

}

}

// --------------------------------------------------------------------

/**

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];

}

}

}

// --------------------------------------------------------------------

/**

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>'

);

}