Refactor insert default values

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## 1.0.2 under development
 
 - Chg #297: Remove `QueryBuilder::getColumnType()` child method as legacy code (@Tigrov)
+- Enh #300: Refactor insert default values (@Tigrov)
 
 ## 1.0.1 July 24, 2023
 

src/DMLQueryBuilder.php

@@ -119,30 +119,10 @@ public function upsert(
      */
     protected function prepareInsertValues(string $table, QueryInterface|array $columns, array $params = []): array
     {
-        /**
-         * @psalm-var array $names
-         * @psalm-var array $placeholders
-         */
-        [$names, $placeholders, $values, $params] = parent::prepareInsertValues($table, $columns, $params);
-
-        if (!$columns instanceof QueryInterface && empty($names)) {
-            $tableSchema = $this->schema->getTableSchema($table);
-
-            if ($tableSchema !== null) {
-                if (!empty($tableSchema->getPrimaryKey())) {
-                    $columns = $tableSchema->getPrimaryKey();
-                    $defaultValue = 'NULL';
-                } else {
-                    $columns = [current($tableSchema->getColumns())->getName()];
-                    $defaultValue = 'DEFAULT';
-                }
-                foreach ($columns as $name) {
-                    $names[] = $this->quoter->quoteColumnName($name);
-                    $placeholders[] = $defaultValue;
-                }
-            }
+        if (empty($columns)) {
+            return [[], [], ' VALUES ()', []];
         }
 
-        return [$names, $placeholders, $values, $params];
+        return parent::prepareInsertValues($table, $columns, $params);
     }
 }

tests/Provider/QueryBuilderProvider.php

@@ -105,7 +105,7 @@ public static function insert(): array
         $insert = parent::insert();
 
         $insert['empty columns'][3] = <<<SQL
-        INSERT INTO `customer` (`id`) VALUES (NULL)
+        INSERT INTO `customer` VALUES ()
         SQL;
 
         return $insert;

tests/QueryBuilderTest.php

@@ -320,15 +320,15 @@ public function testDefaultValues(): void
         // Primary key columns should have NULL as value
         $this->assertSame(
             <<<SQL
-            INSERT INTO `null_values` (`id`) VALUES (NULL)
+            INSERT INTO `null_values` VALUES ()
             SQL,
             $qb->insert('null_values', []),
         );
 
         // Non-primary key columns should have DEFAULT as value
         $this->assertSame(
             <<<SQL
-            INSERT INTO `negative_default_values` (`tinyint_col`) VALUES (DEFAULT)
+            INSERT INTO `negative_default_values` VALUES ()
             SQL,
             $qb->insert('negative_default_values', []),
         );

tests/SchemaTest.php

@@ -18,6 +18,7 @@
 use Yiisoft\Db\Mysql\ColumnSchema;
 use Yiisoft\Db\Mysql\Schema;
 use Yiisoft\Db\Mysql\Tests\Support\TestTrait;
+use Yiisoft\Db\Query\Query;
 use Yiisoft\Db\Schema\SchemaInterface;
 use Yiisoft\Db\Tests\Common\CommonSchemaTest;
 use Yiisoft\Db\Tests\Support\Assert;
@@ -537,4 +538,23 @@ public function testNotConnectionPDO(): void
 
         $schema->refreshTableSchema('customer');
     }
+
+    public function testInsertDefaultValues()
+    {
+        $db = $this->getConnection(true);
+        $command = $db->createCommand();
+
+        $command->insert('negative_default_values', [])->execute();
+
+        $row = (new Query($db))->from('negative_default_values')->one();
+
+        $this->assertSame([
+            'tinyint_col' => '-123',
+            'smallint_col' => '-123',
+            'int_col' => '-123',
+            'bigint_col' => '-123',
+            'float_col' => '-12345.6789',
+            'numeric_col' => '-33.22',
+        ], $row);
+    }
 }