Implement per cell styling for openspout

composer.json

@@ -12,7 +12,7 @@
     "require": {
         "php": "^8.0",
         "illuminate/support": "^6.0 || ^7.0 || ^8.0 || ^9.0 || ^10.0 || ^11.0",
-        "openspout/openspout": "^4.1.1"
+        "openspout/openspout": "^4.24"
     },
     "require-dev": {
         "illuminate/database": "^6.20.12 || ^7.30.4 || ^8.24.0 || ^9.0 || ^10.0 || ^11.0",

src/Exportable.php

@@ -2,6 +2,7 @@
 
 namespace Rap2hpoutre\FastExcel;
 
+use DateTimeInterface;
 use Generator;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Str;
@@ -26,13 +27,24 @@ trait Exportable
     private $header_style;
     private $rows_style;
 
+    /** @var Style[] */
+    private $column_styles = [];
+
     /**
      * @param AbstractOptions $options
      *
      * @return mixed
      */
     abstract protected function setOptions(&$options);
 
+    /** @param Style[] $styles */
+    public function setColumnStyles($styles): static
+    {
+        $this->column_styles = $styles;
+
+        return $this;
+    }
+
     /**
      * @param string        $path
      * @param callable|null $callback
@@ -182,19 +194,19 @@ private function writeRowsFromCollection($writer, Collection $collection, ?calla
         $all_rows = $collection->map(function ($value) {
             return Row::fromValues($value);
         })->toArray();
-        if ($this->rows_style) {
-            $this->addRowsWithStyle($writer, $all_rows, $this->rows_style);
+        if ($this->rows_style || count($this->column_styles)) {
+            $this->addRowsWithStyle($writer, $all_rows, $this->rows_style, $this->column_styles);
         } else {
             $writer->addRows($all_rows);
         }
     }
 
-    private function addRowsWithStyle($writer, $all_rows, $rows_style)
+    private function addRowsWithStyle($writer, $all_rows, $rows_style, $column_styles)
     {
         $styled_rows = [];
         // Style rows one by one
         foreach ($all_rows as $row) {
-            $styled_rows[] = Row::fromValues($row->toArray(), $rows_style);
+            $styled_rows[] = $this->createRow($row->toArray(), $rows_style, $column_styles);
         }
         $writer->addRows($styled_rows);
     }
@@ -215,7 +227,7 @@ private function writeRowsFromGenerator($writer, Generator $generator, ?callable
                 $this->writeHeader($writer, $item);
             }
             // Write rows (one by one).
-            $writer->addRow(Row::fromValues($item->toArray(), $this->rows_style));
+            $writer->addRow($this->createRow($item->toArray(), $this->rows_style, $this->column_styles));
         }
     }
 
@@ -236,7 +248,7 @@ private function writeHeader($writer, $first_row)
         }
 
         $keys = array_keys(is_array($first_row) ? $first_row : $first_row->toArray());
-        $writer->addRow(Row::fromValues($keys, $this->header_style));
+        $writer->addRow($this->createRow($keys, $this->header_style));
 //        $writer->addRow(WriterEntityFactory::createRowFromArray($keys, $this->header_style));
     }
 
@@ -280,7 +292,7 @@ private function transformRow($data)
         return collect($data)->map(function ($value) {
             return is_null($value) ? (string) $value : $value;
         })->filter(function ($value) {
-            return is_string($value) || is_int($value) || is_float($value);
+            return is_string($value) || is_int($value) || is_float($value) || $value instanceof DateTimeInterface;
         });
     }
 
@@ -307,4 +319,14 @@ public function rowsStyle(Style $style)
 
         return $this;
     }
+
+    /**
+     * Create openspout row from values with optional row and cell styling.
+     *
+     * @SuppressWarnings(PHPMD.StaticAccess)
+     */
+    private function createRow(array $values = [], ?Style $rows_style = null, array $column_styles = []): Row
+    {
+        return Row::fromValuesWithStyles($values, $rows_style, $column_styles);
+    }
 }

tests/FastExcelTest.php

@@ -4,6 +4,7 @@
 
 use OpenSpout\Common\Entity\Style\Color;
 use OpenSpout\Common\Entity\Style\Style;
+use OpenSpout\Common\Exception\IOException;
 use OpenSpout\Reader\XLSX\Options;
 use Rap2hpoutre\FastExcel\FastExcel;
 use Rap2hpoutre\FastExcel\SheetCollection;
@@ -13,6 +14,31 @@
  */
 class FastExcelTest extends TestCase
 {
+    /**
+     * @throws IOException
+     * @throws \OpenSpout\Writer\Exception\WriterNotOpenedException
+     * @throws \OpenSpout\Reader\Exception\ReaderNotOpenedException
+     * @throws \OpenSpout\Common\Exception\UnsupportedTypeException
+     * @throws \OpenSpout\Common\Exception\InvalidArgumentException
+     */
+    public function testExportXlsxWithDates()
+    {
+        $collection = collect([
+            ['col1' => new \DateTimeImmutable('1980-09-18 00:00:00.000000')],
+            ['col1' => new \DateTimeImmutable('2018-07-02 00:00:00.000000')],
+        ]);
+
+        $file = __DIR__.'/test-dates-export.xlsx';
+        (new FastExcel(clone $collection))
+            ->setColumnStyles([
+                0 => (new Style())->setFormat('mm/dd/yyyy'),
+            ])
+            ->export($file);
+
+        $this->assertEquals($collection, (new FastExcel())->import($file));
+        unlink($file);
+    }
+
     /**
      * @throws \OpenSpout\Common\Exception\IOException
      * @throws \OpenSpout\Common\Exception\UnsupportedTypeException