pics/models/GenericTable.php

264 lines
7.5 KiB
PHP

<?php
/*****************************************************************************
* GenericTable.php
* Contains key class GenericTable.
*
* Kabuki CMS (C) 2013-2015, Aaron van Geffen
*****************************************************************************/
class GenericTable
{
private $header = [];
private $body = [];
private $pageIndex = null;
private $currentPage = 1;
private $title;
private $title_class;
private $tableIsSortable = false;
public $form_above;
public $form_below;
public function __construct($options)
{
// Make sure we're actually sorting on something sortable.
if (!isset($options['sort_order']) || (!empty($options['sort_order']) && empty($options['columns'][$options['sort_order']]['is_sortable'])))
$options['sort_order'] = '';
// Order in which direction?
if (!empty($options['sort_direction']) && !in_array($options['sort_direction'], ['up', 'down']))
$options['sort_direction'] = 'up';
// Make sure we know whether we can actually sort on something.
$this->tableIsSortable = !empty($options['base_url']);
// How much data do we have?
$this->recordCount = $options['get_count'](...(!empty($options['get_count_params']) ? $options['get_count_params'] : []));
// How much data do we need to retrieve?
$this->items_per_page = !empty($options['items_per_page']) ? $options['items_per_page'] : 30;
// Figure out where to start.
$this->start = empty($options['start']) || !is_numeric($options['start']) || $options['start'] < 0 || $options['start'] > $this->recordCount ? 0 : $options['start'];
// Figure out where we are on the whole, too.
$numPages = ceil($this->recordCount / $this->items_per_page);
$this->currentPage = min(ceil($this->start / $this->items_per_page) + 1, $numPages);
// Let's bear a few things in mind...
$this->base_url = $options['base_url'];
// Gather parameters for the data gather function first.
$parameters = [$this->start, $this->items_per_page, $options['sort_order'], $options['sort_direction']];
if (!empty($options['get_data_params']) && is_array($options['get_data_params']))
$parameters = array_merge($parameters, $options['get_data_params']);
// Okay, let's fetch the data!
$data = $options['get_data'](...$parameters);
// Extract data into local variables.
$rawRowData = $data['rows'];
$this->sort_order = $data['order'];
$this->sort_direction = $data['direction'];
unset($data);
// Okay, now for the column headers...
$this->generateColumnHeaders($options);
// Should we create a page index?
$needsPageIndex = !empty($this->items_per_page) && $this->recordCount > $this->items_per_page;
if ($needsPageIndex)
$this->generatePageIndex($options);
// Process the data to be shown into rows.
if (!empty($rawRowData))
$this->processAllRows($rawRowData, $options);
else
$this->body = $options['no_items_label'] ?? '';
// Got a title?
$this->title = $options['title'] ?? '';
$this->title_class = $options['title_class'] ?? '';
// Maybe even a form or two?
$this->form_above = $options['form_above'] ?? $options['form'] ?? null;
$this->form_below = $options['form_below'] ?? $options['form'] ?? null;
}
private function generateColumnHeaders($options)
{
foreach ($options['columns'] as $key => $column)
{
if (empty($column['header']))
continue;
$isSortable = $this->tableIsSortable && !empty($column['is_sortable']);
$sortDirection = $key == $this->sort_order && $this->sort_direction === 'up' ? 'down' : 'up';
$header = [
'class' => isset($column['class']) ? $column['class'] : '',
'colspan' => !empty($column['header_colspan']) ? $column['header_colspan'] : 1,
'href' => $isSortable ? $this->getLink($this->start, $key, $sortDirection) : null,
'label' => $column['header'],
'scope' => 'col',
'sort_mode' => $key == $this->sort_order ? $this->sort_direction : null,
'width' => !empty($column['header_width']) && is_int($column['header_width']) ? $column['header_width'] : null,
];
$this->header[] = $header;
}
}
private function generatePageIndex($options)
{
$this->pageIndex = new PageIndex([
'base_url' => $this->base_url,
'index_class' => $options['index_class'] ?? '',
'items_per_page' => $this->items_per_page,
'linkBuilder' => [$this, 'getLink'],
'recordCount' => $this->recordCount,
'sort_direction' => $this->sort_direction,
'sort_order' => $this->sort_order,
'start' => $this->start,
]);
}
public function getLink($start = null, $order = null, $dir = null)
{
if ($start === null)
$start = $this->start;
if ($order === null)
$order = $this->sort_order;
if ($dir === null)
$dir = $this->sort_direction;
return $this->base_url . (strpos($this->base_url, '?') ? '&' : '?') . 'start=' . $start . '&order=' . $order. '&dir=' . $dir;
}
public function getOffset()
{
return $this->start;
}
public function getHeader()
{
return $this->header;
}
public function getBody()
{
return $this->body;
}
public function getCurrentPage()
{
return $this->currentPage;
}
public function getPageIndex()
{
return $this->pageIndex;
}
public function getTitle()
{
return $this->title;
}
public function getTitleClass()
{
return $this->title_class;
}
private function processAllRows($rows, $options)
{
foreach ($rows as $i => $row)
{
$newRow = [
'cells' => [],
];
foreach ($options['columns'] as $column)
{
// Process data for this particular cell.
if (isset($column['parse']))
$value = self::processCell($column['parse'], $row);
else
$value = $row[$column['value']];
// Append the cell to the row.
$newRow['cells'][] = [
'value' => $value,
];
}
// Append the new row in the body.
$this->body[] = $newRow;
}
}
private function processCell($options, $rowData)
{
if (!isset($options['type']))
$options['type'] = 'value';
// Parse the basic value first.
switch ($options['type'])
{
// Basic option: simply take a use a particular data property.
case 'value':
$value = htmlspecialchars($rowData[$options['data']]);
break;
// Processing via a lambda function.
case 'function':
$value = $options['data']($rowData);
break;
// Using sprintf to fill out a particular pattern.
case 'sprintf':
$parameters = [$options['data']['pattern']];
foreach ($options['data']['arguments'] as $identifier)
$parameters[] = $rowData[$identifier];
$value = sprintf(...$parameters);
break;
// Timestamps get custom treatment.
case 'timestamp':
if (empty($options['data']['pattern']) || $options['data']['pattern'] === 'long')
$pattern = '%F %H:%M';
elseif ($options['data']['pattern'] === 'short')
$pattern = '%F';
else
$pattern = $options['data']['pattern'];
if (!is_numeric($rowData[$options['data']['timestamp']]))
$timestamp = strtotime($rowData[$options['data']['timestamp']]);
else
$timestamp = (int) $rowData[$options['data']['timestamp']];
if (isset($options['data']['if_null']) && $timestamp == 0)
$value = $options['data']['if_null'];
else
$value = strftime($pattern, $timestamp);
break;
}
// Generate a link, if requested.
if (!empty($options['link']))
{
// First, generate the replacement variables.
$keys = array_keys($rowData);
$values = array_values($rowData);
foreach ($keys as $keyKey => $keyValue)
$keys[$keyKey] = '{' . strtoupper($keyValue) . '}';
$value = '<a href="' . str_replace($keys, $values, $options['link']) . '">' . $value . '</a>';
}
return $value;
}
}