Enable support for dates and percentages in Excel Database functions

CHANGELOG.md

@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org).
 
 ### Added
 
+- Support for date values and percentages in query parameters for Database functions, and the IF expressions in functions like COUNTIF() and AVERAGEIF(). [#1875](https://github.com/PHPOffice/PhpSpreadsheet/pull/1875)
 - Implemented DataBar for conditional formatting in Xlsx, providing read/write and creation of (type, value, direction, fills, border, axis position, color settings) as DataBar options in Excel. [#1754](https://github.com/PHPOffice/PhpSpreadsheet/pull/1754)
 - Alignment for ODS Writer [#1796](https://github.com/PHPOffice/PhpSpreadsheet/issues/1796)
 - Basic implementation of the PERMUTATIONA() Statistical Function

src/PhpSpreadsheet/Calculation/Database/DatabaseAbstract.php

@@ -83,8 +83,6 @@ protected static function getFilteredColumn(array $database, $field, array $crit
     }
 
     /**
-     * @TODO Support for Dates (including handling for >, <=, etc)
-     * @TODO Suport for formatted numerics (e.g. '>12.5%' => '>0.125')
      * @TODO Suport for wildcard ? and * in strings (includng escaping)
      */
     private static function buildQuery(array $criteriaNames, array $criteria): string
@@ -121,15 +119,16 @@ private static function executeQuery(array $database, string $query, $criteriaNa
             $testConditionList = $query;
             foreach ($criteriaNames as $key => $criteriaName) {
                 $key = array_search($criteriaName, $fieldNames, true);
-                if (isset($dataValues[$key])) {
+                if (is_bool($dataValues[$key])) {
+                    $dataValue = ($dataValues[$key]) ? 'TRUE' : 'FALSE';
+                } elseif ($dataValues[$key] !== null) {
                     $dataValue = $dataValues[$key];
                     $dataValue = (is_string($dataValue)) ? Calculation::wrapResult(strtoupper($dataValue)) : $dataValue;
                 } else {
                     $dataValue = 'NULL';
                 }
                 $testConditionList = str_replace('[:' . $criteriaName . ']', $dataValue, $testConditionList);
             }
-
             //    evaluate the criteria against the row data
             $result = Calculation::getInstance()->_calculateFormulaValue('=' . $testConditionList);
             //    If the row failed to meet the criteria, remove it from the database

src/PhpSpreadsheet/Calculation/Functions.php

@@ -3,6 +3,7 @@
 namespace PhpOffice\PhpSpreadsheet\Calculation;
 
 use PhpOffice\PhpSpreadsheet\Cell\Cell;
+use PhpOffice\PhpSpreadsheet\Shared\Date;
 
 class Functions
 {
@@ -252,9 +253,11 @@ public static function ifCondition($condition)
         if ($condition === '') {
             $condition = '=""';
         }
-
         if (!is_string($condition) || !in_array($condition[0], ['>', '<', '='])) {
-            if (!is_numeric($condition)) {
+            $condition = self::operandSpecialHandling($condition);
+            if (is_bool($condition)) {
+                return '=' . ($condition ? 'TRUE' : 'FALSE');
+            } elseif (!is_numeric($condition)) {
                 $condition = Calculation::wrapResult(strtoupper($condition));
             }
 
@@ -263,16 +266,38 @@ public static function ifCondition($condition)
         preg_match('/(=|<[>=]?|>=?)(.*)/', $condition, $matches);
         [, $operator, $operand] = $matches;
 
+        $operand = self::operandSpecialHandling($operand);
         if (is_numeric(trim($operand, '"'))) {
             $operand = trim($operand, '"');
-        } elseif (!is_numeric($operand)) {
+        } elseif (!is_numeric($operand) && $operand !== 'FALSE' && $operand !== 'TRUE') {
             $operand = str_replace('"', '""', $operand);
             $operand = Calculation::wrapResult(strtoupper($operand));
         }
 
         return str_replace('""""', '""', $operator . $operand);
     }
 
+    private static function operandSpecialHandling($operand)
+    {
+        if (is_numeric($operand) || is_bool($operand)) {
+            return $operand;
+        } elseif (strtoupper($operand) === Calculation::getTRUE() || strtoupper($operand) === Calculation::getFALSE()) {
+            return strtoupper($operand);
+        }
+
+        // Check for percentage
+        if (preg_match('/^\-?\d*\.?\d*\s?\%$/', $operand)) {
+            return ((float) rtrim($operand, '%')) / 100;
+        }
+
+        // Check for dates
+        if (($dateValueOperand = Date::stringToExcel($operand)) !== false) {
+            return $dateValueOperand;
+        }
+
+        return $operand;
+    }
+
     /**
      * ERROR_TYPE.
      *

tests/PhpSpreadsheetTests/Calculation/Functions/Database/DCountATest.php

@@ -100,7 +100,7 @@ public function providerDCountA()
                 'Score',
                 [
                     ['Subject', 'Score'],
-                    ['English', '>0.60'],
+                    ['English', '>60%'],
                 ],
             ],
         ];

tests/PhpSpreadsheetTests/Calculation/Functions/Database/DCountTest.php

@@ -59,6 +59,21 @@ protected function database2()
         ];
     }
 
+    protected function database3()
+    {
+        return [
+            ['Status', 'Value'],
+            [false, 1],
+            [true, 2],
+            [true, 4],
+            [false, 8],
+            [true, 16],
+            [false, 32],
+            [false, 64],
+            [false, 128],
+        ];
+    }
+
     public function providerDCount()
     {
         return [
@@ -95,7 +110,25 @@ public function providerDCount()
                 null,
                 [
                     ['Subject', 'Score'],
-                    ['English', '>0.63'],
+                    ['English', '>63%'],
+                ],
+            ],
+            [
+                3,
+                $this->database3(),
+                'Value',
+                [
+                    ['Status'],
+                    [true],
+                ],
+            ],
+            [
+                5,
+                $this->database3(),
+                'Value',
+                [
+                    ['Status'],
+                    ['<>true'],
                 ],
             ],
         ];

tests/PhpSpreadsheetTests/Calculation/Functions/Database/DProductTest.php

@@ -73,8 +73,6 @@ public function providerDProduct()
                     ['=Pear', null, null],
                 ],
             ],
-            /*
-             * We don't yet support date handling in the search query
             [
                 36,
                 $this->database2(),
@@ -93,7 +91,6 @@ public function providerDProduct()
                     ['Test1', '<05-Jan-2017'],
                 ],
             ],
-             */
             [
                 null,
                 $this->database1(),

tests/PhpSpreadsheetTests/Calculation/Functions/Database/DSumTest.php

@@ -95,7 +95,7 @@ public function providerDSum()
                 ],
             ],
             /*
-             * We don't yet support woldcards in text search fields
+             * We don't yet support wildcards in text search fields
             [
                 710000,
                 $this->database2(),