499 lines
13 KiB
PHP
499 lines
13 KiB
PHP
<?php
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namespace PhpOffice\PhpSpreadsheet\Collection;
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use Generator;
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use PhpOffice\PhpSpreadsheet\Cell\Cell;
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use PhpOffice\PhpSpreadsheet\Cell\Coordinate;
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use PhpOffice\PhpSpreadsheet\Exception as PhpSpreadsheetException;
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use PhpOffice\PhpSpreadsheet\Worksheet\Worksheet;
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use Psr\SimpleCache\CacheInterface;
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class Cells
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{
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/**
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* @var \Psr\SimpleCache\CacheInterface
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*/
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private $cache;
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/**
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* Parent worksheet.
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*
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* @var Worksheet
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*/
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private $parent;
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/**
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* The currently active Cell.
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*
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* @var Cell
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*/
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private $currentCell;
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/**
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* Coordinate of the currently active Cell.
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*
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* @var string
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*/
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private $currentCoordinate;
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/**
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* Flag indicating whether the currently active Cell requires saving.
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*
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* @var bool
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*/
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private $currentCellIsDirty = false;
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/**
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* An index of existing cells. Booleans indexed by their coordinate.
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*
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* @var bool[]
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*/
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private $index = [];
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/**
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* Prefix used to uniquely identify cache data for this worksheet.
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*
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* @var string
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*/
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private $cachePrefix;
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/**
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* Initialise this new cell collection.
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*
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* @param Worksheet $parent The worksheet for this cell collection
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*/
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public function __construct(Worksheet $parent, CacheInterface $cache)
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{
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// Set our parent worksheet.
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// This is maintained here to facilitate re-attaching it to Cell objects when
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// they are woken from a serialized state
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$this->parent = $parent;
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$this->cache = $cache;
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$this->cachePrefix = $this->getUniqueID();
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}
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/**
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* Return the parent worksheet for this cell collection.
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*
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* @return Worksheet
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*/
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public function getParent()
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{
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return $this->parent;
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}
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/**
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* Whether the collection holds a cell for the given coordinate.
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*
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* @param string $pCoord Coordinate of the cell to check
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*
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* @return bool
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*/
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public function has($pCoord)
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{
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if ($pCoord === $this->currentCoordinate) {
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return true;
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}
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// Check if the requested entry exists in the index
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return isset($this->index[$pCoord]);
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}
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/**
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* Add or update a cell in the collection.
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*
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* @param Cell $cell Cell to update
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*
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* @return Cell
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*/
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public function update(Cell $cell)
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{
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return $this->add($cell->getCoordinate(), $cell);
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}
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/**
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* Delete a cell in cache identified by coordinate.
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*
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* @param string $pCoord Coordinate of the cell to delete
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*/
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public function delete($pCoord): void
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{
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if ($pCoord === $this->currentCoordinate && $this->currentCell !== null) {
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$this->currentCell->detach();
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$this->currentCoordinate = null;
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$this->currentCell = null;
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$this->currentCellIsDirty = false;
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}
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unset($this->index[$pCoord]);
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// Delete the entry from cache
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$this->cache->delete($this->cachePrefix . $pCoord);
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}
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/**
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* Get a list of all cell coordinates currently held in the collection.
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*
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* @return string[]
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*/
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public function getCoordinates()
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{
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return array_keys($this->index);
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}
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/**
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* Get a sorted list of all cell coordinates currently held in the collection by row and column.
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*
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* @return string[]
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*/
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public function getSortedCoordinates()
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{
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$sortKeys = [];
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foreach ($this->getCoordinates() as $coord) {
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$column = '';
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$row = 0;
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sscanf($coord, '%[A-Z]%d', $column, $row);
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$sortKeys[sprintf('%09d%3s', $row, $column)] = $coord;
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}
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ksort($sortKeys);
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return array_values($sortKeys);
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}
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/**
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* Get highest worksheet column and highest row that have cell records.
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*
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* @return array Highest column name and highest row number
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*/
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public function getHighestRowAndColumn()
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{
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// Lookup highest column and highest row
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$col = ['A' => '1A'];
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$row = [1];
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foreach ($this->getCoordinates() as $coord) {
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$c = '';
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$r = 0;
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sscanf($coord, '%[A-Z]%d', $c, $r);
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$row[$r] = $r;
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$col[$c] = strlen($c) . $c;
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}
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// Determine highest column and row
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$highestRow = max($row);
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$highestColumn = substr(max($col), 1);
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return [
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'row' => $highestRow,
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'column' => $highestColumn,
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];
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}
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/**
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* Return the cell coordinate of the currently active cell object.
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*
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* @return string
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*/
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public function getCurrentCoordinate()
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{
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return $this->currentCoordinate;
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}
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/**
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* Return the column coordinate of the currently active cell object.
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*
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* @return string
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*/
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public function getCurrentColumn()
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{
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$column = '';
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$row = 0;
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sscanf($this->currentCoordinate, '%[A-Z]%d', $column, $row);
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return $column;
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}
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/**
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* Return the row coordinate of the currently active cell object.
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*
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* @return int
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*/
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public function getCurrentRow()
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{
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$column = '';
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$row = 0;
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sscanf($this->currentCoordinate, '%[A-Z]%d', $column, $row);
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return (int) $row;
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}
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/**
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* Get highest worksheet column.
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*
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* @param string $row Return the highest column for the specified row,
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* or the highest column of any row if no row number is passed
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*
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* @return string Highest column name
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*/
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public function getHighestColumn($row = null)
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{
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if ($row === null) {
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$colRow = $this->getHighestRowAndColumn();
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return $colRow['column'];
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}
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$columnList = [1];
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foreach ($this->getCoordinates() as $coord) {
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$c = '';
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$r = 0;
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sscanf($coord, '%[A-Z]%d', $c, $r);
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if ($r != $row) {
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continue;
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}
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$columnList[] = Coordinate::columnIndexFromString($c);
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}
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return Coordinate::stringFromColumnIndex(max($columnList));
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}
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/**
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* Get highest worksheet row.
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*
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* @param string $column Return the highest row for the specified column,
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* or the highest row of any column if no column letter is passed
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*
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* @return int Highest row number
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*/
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public function getHighestRow($column = null)
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{
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if ($column === null) {
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$colRow = $this->getHighestRowAndColumn();
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return $colRow['row'];
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}
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$rowList = [0];
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foreach ($this->getCoordinates() as $coord) {
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$c = '';
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$r = 0;
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sscanf($coord, '%[A-Z]%d', $c, $r);
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if ($c != $column) {
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continue;
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}
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$rowList[] = $r;
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}
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return max($rowList);
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}
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/**
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* Generate a unique ID for cache referencing.
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*
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* @return string Unique Reference
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*/
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private function getUniqueID()
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{
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return uniqid('phpspreadsheet.', true) . '.';
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}
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/**
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* Clone the cell collection.
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*
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* @param Worksheet $parent The new worksheet that we're copying to
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*
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* @return self
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*/
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public function cloneCellCollection(Worksheet $parent)
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{
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$this->storeCurrentCell();
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$newCollection = clone $this;
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$newCollection->parent = $parent;
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if (($newCollection->currentCell !== null) && (is_object($newCollection->currentCell))) {
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$newCollection->currentCell->attach($this);
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}
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// Get old values
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$oldKeys = $newCollection->getAllCacheKeys();
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$oldValues = $newCollection->cache->getMultiple($oldKeys);
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$newValues = [];
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$oldCachePrefix = $newCollection->cachePrefix;
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// Change prefix
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$newCollection->cachePrefix = $newCollection->getUniqueID();
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foreach ($oldValues as $oldKey => $value) {
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$newValues[str_replace($oldCachePrefix, $newCollection->cachePrefix, $oldKey)] = clone $value;
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}
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// Store new values
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$stored = $newCollection->cache->setMultiple($newValues);
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if (!$stored) {
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$newCollection->__destruct();
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throw new PhpSpreadsheetException('Failed to copy cells in cache');
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}
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return $newCollection;
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}
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/**
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* Remove a row, deleting all cells in that row.
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*
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* @param string $row Row number to remove
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*/
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public function removeRow($row): void
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{
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foreach ($this->getCoordinates() as $coord) {
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$c = '';
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$r = 0;
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sscanf($coord, '%[A-Z]%d', $c, $r);
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if ($r == $row) {
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$this->delete($coord);
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}
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}
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}
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/**
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* Remove a column, deleting all cells in that column.
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*
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* @param string $column Column ID to remove
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*/
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public function removeColumn($column): void
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{
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foreach ($this->getCoordinates() as $coord) {
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$c = '';
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$r = 0;
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sscanf($coord, '%[A-Z]%d', $c, $r);
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if ($c == $column) {
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$this->delete($coord);
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}
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}
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}
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/**
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* Store cell data in cache for the current cell object if it's "dirty",
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* and the 'nullify' the current cell object.
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*/
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private function storeCurrentCell(): void
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{
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if ($this->currentCellIsDirty && !empty($this->currentCoordinate)) {
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$this->currentCell->detach();
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$stored = $this->cache->set($this->cachePrefix . $this->currentCoordinate, $this->currentCell);
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if (!$stored) {
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$this->__destruct();
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throw new PhpSpreadsheetException("Failed to store cell {$this->currentCoordinate} in cache");
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}
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$this->currentCellIsDirty = false;
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}
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$this->currentCoordinate = null;
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$this->currentCell = null;
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}
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/**
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* Add or update a cell identified by its coordinate into the collection.
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*
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* @param string $pCoord Coordinate of the cell to update
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* @param Cell $cell Cell to update
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*
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* @return \PhpOffice\PhpSpreadsheet\Cell\Cell
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*/
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public function add($pCoord, Cell $cell)
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{
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if ($pCoord !== $this->currentCoordinate) {
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$this->storeCurrentCell();
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}
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$this->index[$pCoord] = true;
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$this->currentCoordinate = $pCoord;
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$this->currentCell = $cell;
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$this->currentCellIsDirty = true;
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return $cell;
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}
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/**
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* Get cell at a specific coordinate.
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*
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* @param string $pCoord Coordinate of the cell
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*
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* @return null|\PhpOffice\PhpSpreadsheet\Cell\Cell Cell that was found, or null if not found
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*/
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public function get($pCoord)
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{
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if ($pCoord === $this->currentCoordinate) {
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return $this->currentCell;
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}
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$this->storeCurrentCell();
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// Return null if requested entry doesn't exist in collection
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if (!$this->has($pCoord)) {
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return null;
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}
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// Check if the entry that has been requested actually exists
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$cell = $this->cache->get($this->cachePrefix . $pCoord);
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if ($cell === null) {
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throw new PhpSpreadsheetException("Cell entry {$pCoord} no longer exists in cache. This probably means that the cache was cleared by someone else.");
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}
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// Set current entry to the requested entry
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$this->currentCoordinate = $pCoord;
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$this->currentCell = $cell;
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// Re-attach this as the cell's parent
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$this->currentCell->attach($this);
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// Return requested entry
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return $this->currentCell;
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}
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/**
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* Clear the cell collection and disconnect from our parent.
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*/
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public function unsetWorksheetCells(): void
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{
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if ($this->currentCell !== null) {
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$this->currentCell->detach();
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$this->currentCell = null;
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$this->currentCoordinate = null;
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}
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// Flush the cache
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$this->__destruct();
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$this->index = [];
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// detach ourself from the worksheet, so that it can then delete this object successfully
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$this->parent = null;
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}
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/**
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* Destroy this cell collection.
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*/
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public function __destruct()
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{
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$this->cache->deleteMultiple($this->getAllCacheKeys());
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}
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/**
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* Returns all known cache keys.
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*
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* @return Generator|string[]
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*/
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private function getAllCacheKeys()
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{
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foreach ($this->getCoordinates() as $coordinate) {
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yield $this->cachePrefix . $coordinate;
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}
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}
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}
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