Add support for cells in error when writing XLSX and ODS

When appending data to an existing sheet, it was possible to get cells in error when reading (DIV/0 for instance). When trying to write them back, `addRow` would throw because `Cell`s in error were not supported by the writers.

src/Spout/Common/Entity/Cell.php

@@ -91,6 +91,14 @@ public function getValue()
         return !$this->isError() ? $this->value : null;
     }
 
+    /**
+     * @return mixed
+     */
+    public function getValueEvenIfError()
+    {
+        return $this->value;
+    }
+
     /**
      * @param Style|null $style
      */

src/Spout/Writer/ODS/Manager/WorksheetManager.php

@@ -204,6 +204,11 @@ private function getCellXML(Cell $cell, $styleIndex, $numTimesValueRepeated)
             $data .= ' office:value-type="float" calcext:value-type="float" office:value="' . $cell->getValue() . '">';
             $data .= '<text:p>' . $cell->getValue() . '</text:p>';
             $data .= '</table:table-cell>';
+        } elseif ($cell->isError() && is_string($cell->getValueEvenIfError())) {
+            // only writes the error value if it's a string
+            $data .= ' office:value-type="string" calcext:value-type="error" office:value="">';
+            $data .= '<text:p>' . $cell->getValueEvenIfError() . '</text:p>';
+            $data .= '</table:table-cell>';
         } elseif ($cell->isEmpty()) {
             $data .= '/>';
         } else {

src/Spout/Writer/XLSX/Manager/WorksheetManager.php

@@ -218,6 +218,9 @@ private function getCellXML($rowIndexOneBased, $columnIndexZeroBased, Cell $cell
             $cellXML .= ' t="b"><v>' . (int) ($cell->getValue()) . '</v></c>';
         } elseif ($cell->isNumeric()) {
             $cellXML .= '><v>' . $cell->getValue() . '</v></c>';
+        } elseif ($cell->isError() && is_string($cell->getValueEvenIfError())) {
+            // only writes the error value if it's a string
+            $cellXML .= ' t="e"><v>' . $cell->getValueEvenIfError() . '</v></c>';
         } elseif ($cell->isEmpty()) {
             if ($this->styleManager->shouldApplyStyleOnEmptyCell($styleId)) {
                 $cellXML .= '/>';

tests/Spout/Writer/ODS/WriterTest.php

@@ -2,6 +2,7 @@
 
 namespace Box\Spout\Writer\ODS;
 
+use Box\Spout\Common\Entity\Cell;
 use Box\Spout\Common\Entity\Row;
 use Box\Spout\Common\Exception\InvalidArgumentException;
 use Box\Spout\Common\Exception\IOException;
@@ -321,6 +322,24 @@ public function testAddRowShouldUseNumberColumnsRepeatedForRepeatedValues($dataR
         }
     }
 
+    /**
+     * @return void
+     */
+    public function testAddRowShouldSupportCellInError()
+    {
+        $fileName = 'test_add_row_should_support_cell_in_error.ods';
+
+        $cell = WriterEntityFactory::createCell('#DIV/0');
+        $cell->setType(Cell::TYPE_ERROR);
+
+        $row = WriterEntityFactory::createRow([$cell]);
+
+        $this->writeToODSFile([$row], $fileName);
+
+        $this->assertValueWasWritten($fileName, 'calcext:value-type="error"');
+        $this->assertValueWasWritten($fileName, '<text:p>#DIV/0</text:p>');
+    }
+
     /**
      * @return void
      */

tests/Spout/Writer/XLSX/WriterTest.php

@@ -2,6 +2,7 @@
 
 namespace Box\Spout\Writer\XLSX;
 
+use Box\Spout\Common\Entity\Cell;
 use Box\Spout\Common\Entity\Row;
 use Box\Spout\Common\Exception\InvalidArgumentException;
 use Box\Spout\Common\Exception\IOException;
@@ -375,6 +376,23 @@ public function testAddRowShouldSupportMultipleTypesOfData()
         $this->assertInlineDataWasWrittenToSheet($fileName, 1, 10.2);
     }
 
+    /**
+     * @return void
+     */
+    public function testAddRowShouldSupportCellInError()
+    {
+        $fileName = 'test_add_row_should_support_cell_in_error.xlsx';
+
+        $cell = WriterEntityFactory::createCell('#DIV/0');
+        $cell->setType(Cell::TYPE_ERROR);
+
+        $row = WriterEntityFactory::createRow([$cell]);
+
+        $this->writeToXLSXFile([$row], $fileName);
+
+        $this->assertInlineDataWasWrittenToSheet($fileName, 1, 't="e"><v>#DIV/0</v>');
+    }
+
     /**
      * @return void
      */