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<?php |
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/** |
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* @copyright Copyright (c) 2015 ublaboo <[email protected]> |
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* @author Pavel Janda <[email protected]> |
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* @package Ublaboo |
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*/ |
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namespace Ublaboo\DataGrid; |
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use Ublaboo\DataGrid\Column\ColumnNumber; |
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use Ublaboo\DataGrid\Column\Renderer; |
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use Ublaboo\DataGrid\Exception\DataGridColumnRendererException; |
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class ColumnsSummary |
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{ |
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/** |
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* @var DataGrid |
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*/ |
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protected $datagrid; |
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/** |
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* @var array |
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*/ |
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protected $summary; |
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/** |
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* @var array |
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*/ |
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protected $format = []; |
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/** |
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* @var NULL|callable |
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*/ |
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protected $rowCallback; |
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/** |
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* @var Renderer|NULL |
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*/ |
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protected $renderer; |
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/** |
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* @param DataGrid $datagrid |
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* @param array $columns |
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*/ |
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public function __construct(DataGrid $datagrid, array $columns, $rowCallback) |
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{ |
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$this->summary = array_fill_keys(array_values($columns), 0); |
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$this->datagrid = $datagrid; |
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$this->rowCallback = $rowCallback; |
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foreach ($this->summary as $key => $sum) { |
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$column = $this->datagrid->getColumn($key); |
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if ($column instanceof ColumnNumber) { |
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$arg = $column->getFormat(); |
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array_unshift($arg, $key); |
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call_user_func_array([$this, 'setFormat'], $arg); |
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} |
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} |
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} |
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/** |
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* Get value from column using Row::getValue() or custom callback |
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* @param Row $row |
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* @param Column\Column $column |
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* @return bool |
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*/ |
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private function getValue(Row $row, $column) |
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{ |
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if (!$this->rowCallback) { |
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return $row->getValue($column->getColumn()); |
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} |
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return call_user_func_array($this->rowCallback, [$row->getItem(), $column->getColumn()]); |
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} |
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/** |
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* @param Row $row |
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*/ |
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public function add(Row $row) |
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{ |
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foreach ($this->summary as $key => $sum) { |
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$column = $this->datagrid->getColumn($key); |
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$value = $this->getValue($row, $column); |
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$this->summary[$key] += $value; |
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} |
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} |
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/** |
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* @param string $key |
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* @return mixed |
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*/ |
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public function render($key) |
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{ |
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/** |
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* Renderer function may be used |
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*/ |
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try { |
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return $this->useRenderer($key); |
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} catch (DataGridColumnRendererException $e) { |
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/** |
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* Do not use renderer |
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*/ |
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} |
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if (!isset($this->summary[$key])) { |
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return null; |
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} |
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return number_format( |
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$this->summary[$key], |
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$this->format[$key][0], |
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$this->format[$key][1], |
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$this->format[$key][2] |
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); |
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} |
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/** |
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* Try to render summary with custom renderer |
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* @param string $key |
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* @return mixed |
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*/ |
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public function useRenderer($key) |
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{ |
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if (!isset($this->summary[$key])) { |
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return null; |
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} |
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$renderer = $this->getRenderer(); |
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if (!$renderer) { |
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throw new DataGridColumnRendererException; |
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} |
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return call_user_func_array($renderer->getCallback(), [$this->summary[$key], $key]); |
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} |
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/** |
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* Return custom renderer callback |
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* @return Renderer|null |
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*/ |
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public function getRenderer() |
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{ |
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return $this->renderer; |
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} |
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/** |
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* Set renderer callback |
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* @param callable $renderer |
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*/ |
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public function setRenderer(callable $renderer) |
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{ |
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$this->renderer = new Renderer($renderer, NULL); |
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return $this; |
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} |
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/** |
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* Set number format |
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* @param string $key |
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* @param int $decimals |
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* @param string $dec_point |
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* @param string $thousands_sep |
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*/ |
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public function setFormat($key, $decimals = 0, $dec_point = '.', $thousands_sep = ' ') |
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{ |
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$this->format[$key] = [$decimals, $dec_point, $thousands_sep]; |
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return $this; |
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} |
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/** |
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* @param array $columns |
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* @return bool |
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*/ |
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public function someColumnsExist(array $columns) |
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{ |
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foreach ($columns as $key => $column) { |
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if (isset($this->summary[$key])) { |
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return true; |
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} |
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} |
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return false; |
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} |
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} |
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ublaboo /
datagrid
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