PhpSpreadsheet/docs/topics/migration-from-PHPExcel.md
Adrien Crivelli fd9c925a7b
Refactor CachedObjectStorage to PSR-16
This drop a lot of non-core features code and delegate their maintainance
to third parties. Also it open the door to any missing implementation
out of the box, such as Redis for the moment.

Finally this consistently enforce a constraint where there can be one and
only one active cell at any point in time in code. This used to be true for
non-default implementation of cache, but it was not true for default
implementation where all cells were kept in-memory and thus were never
detached from their worksheet and thus were all kept functionnal at any
point in time.

This inconsistency of behavior between in-memory and off-memory could
lead to bugs when changing cache system if the end-user code was badly
written. Now end-user will never be able to write buggy code in the first
place, avoiding future headache when introducing caching.

Closes #3
2017-04-14 16:56:27 +09:00

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Markdown

# Migration from PHPExcel
PhpSpreadsheet introduced many breaking changes by introducing
namespaces and renaming some classes. To help you migrate existing
project, a tool was written to replace all references to PHPExcel
classes to their new names.
The tool is included in PhpSpreadsheet. It scans recursively all files
and directories, starting from the current directory. Assuming it was
installed with composer, it can be run like so:
``` sh
cd /project/to/migrate/src
/project/to/migrate/vendor/phpoffice/phpspreadsheet/bin/migrate-from-phpexcel
```
**Important** The tool will irreversibly modify your sources, be sure to
backup everything, and double check the result before committing.
## Removed deprecated things
In addition to automated changes, usage of deprecated methods must be migrated
manually.
### Worksheet::duplicateStyleArray()
``` php
// Before
$worksheet->duplicateStyleArray($styles, $range, $advanced);
// After
$worksheet->getStyle($range)->applyFromArray($styles, $advanced);
```
### DataType::dataTypeForValue()
``` php
// Before
DataType::dataTypeForValue($value);
// After
DefaultValueBinder::dataTypeForValue($value);
```
### Conditional::getCondition()
``` php
// Before
$conditional->getCondition();
// After
$conditional->getConditions()[0];
```
### Conditional::setCondition()
``` php
// Before
$conditional->setCondition($value);
// After
$conditional->setConditions($value);
```
### Worksheet::getDefaultStyle()
``` php
// Before
$worksheet->getDefaultStyle();
// After
$worksheet->getParent()->getDefaultStyle();
```
### Worksheet::setDefaultStyle()
``` php
// Before
$worksheet->setDefaultStyle($value);
// After
$worksheet->getParent()->getDefaultStyle()->applyFromArray([
'font' => [
'name' => $pValue->getFont()->getName(),
'size' => $pValue->getFont()->getSize(),
],
]);
```
### Worksheet::setSharedStyle()
``` php
// Before
$worksheet->setSharedStyle($sharedStyle, $range);
// After
$worksheet->duplicateStyle($sharedStyle, $range);
```
### Worksheet::getSelectedCell()
``` php
// Before
$worksheet->getSelectedCell();
// After
$worksheet->getSelectedCells();
```
### Writer\Xls::setTempDir()
``` php
// Before
$writer->setTempDir();
// After, there is no way to set temporary storage directory anymore
```
## Autoloader
The class `PHPExcel_Autoloader` was removed entirely and is replaced by composer
autoloading mechanism.
## Writing PDF
`PHPExcel_Settings::setPdfRenderer()` and `PHPExcel_Settings::setPdfRenderer()`
were removed and PDF libraries must be installed via composer. So the only thing
to do is to specify a renderer like so:
```php
$rendererName = \PhpOffice\PhpSpreadsheet\Settings::PDF_RENDERER_MPDF;
\PhpOffice\PhpSpreadsheet\Settings::setPdfRendererName($rendererName);
```
## PclZip and ZipArchive
Support for PclZip were dropped in favor of the more complete and modern
[PHP extension ZipArchive](http://php.net/manual/en/book.zip.php).
So the following were removed:
- `PclZip`
- `PHPExcel_Settings::setZipClass()`
- `PHPExcel_Settings::getZipClass()`
- `PHPExcel_Shared_ZipArchive`
- `PHPExcel_Shared_ZipStreamWrapper`
## Cell caching
Cell caching was heavily refactored to leverage
[PSR-16](http://www.php-fig.org/psr/psr-16/). That means most classes
related to that feature were removed:
- `PHPExcel_CachedObjectStorage_APC`
- `PHPExcel_CachedObjectStorage_DiscISAM`
- `PHPExcel_CachedObjectStorage_ICache`
- `PHPExcel_CachedObjectStorage_Igbinary`
- `PHPExcel_CachedObjectStorage_Memcache`
- `PHPExcel_CachedObjectStorage_Memory`
- `PHPExcel_CachedObjectStorage_MemoryGZip`
- `PHPExcel_CachedObjectStorage_MemorySerialized`
- `PHPExcel_CachedObjectStorage_PHPTemp`
- `PHPExcel_CachedObjectStorage_SQLite`
- `PHPExcel_CachedObjectStorage_SQLite3`
- `PHPExcel_CachedObjectStorage_Wincache`
In addition to that, `\PhpOffice\PhpSpreadsheet::getCellCollection()` was renamed
to `\PhpOffice\PhpSpreadsheet::getCoordinates()` and
`\PhpOffice\PhpSpreadsheet::getCellCacheController()` to
`\PhpOffice\PhpSpreadsheet::getCellCollection()` for clarity.
Refer to [the new documentation](./memory_saving.md) to see how to migrate.