fix: default value for boolean

Author: yajra

src/SQLLoader.php

@@ -103,7 +103,7 @@ public function createColumnsFromHeaders(string $table, array $columns): array
         ]))->pluck('name')->toArray();
 
         $booleans = $schemaColumns->filter(
-            fn ($column) => $column['nullable'] === false && $column['type'] === 'char'
+            fn ($column) => $column['nullable'] === false && $column['type'] === 'char' && $column['length'] === 1
         )->pluck('name')->toArray();
 
         foreach ($columns as $key => $column) {
@@ -117,6 +117,7 @@ public function createColumnsFromHeaders(string $table, array $columns): array
 
             if (in_array($column, $booleans)) {
                 $default = trim((string) $schemaColumns->where('name', $column)->first()['default']);
+                $default = $default ?: "'0'"; // set value to 0 if default is empty since column is not nullable
                 $columns[$key] = "{$escapedColumn} \"DECODE(:{$column}, '', {$default}, :{$column})\"";
 
                 continue;

tests/Feature/SQLLoaderTest.php

@@ -155,7 +155,25 @@
     assertStringContainsString("\"EMAIL\",\n", $controlFile);
     assertStringContainsString('"PHONE" FILLER', $controlFile);
     assertStringContainsString('"CREATED_AT" DATE', $controlFile);
-    assertStringContainsString("\"IS_ACTIVE\" \"DECODE(:is_active, '', '1', :is_active)\"\n", $controlFile);
+    assertStringContainsString("\"IS_ACTIVE\" \"DECODE(:is_active, '', '1', :is_active)\"", $controlFile);
+});
+
+test('it can detect BOOLEAN columns and set the default value to 0 if no default was defined', function () {
+    Process::fake();
+
+    $loader = new SQLLoader();
+    $loader->inFile(__DIR__.'/../data/filler.dat')
+        ->as('users.ctl')
+        ->withHeaders()
+        ->into('users_bool_no_default')
+        ->execute();
+
+    $controlFile = $loader->buildControlFile();
+    assertStringContainsString("\"NAME\",\n", $controlFile);
+    assertStringContainsString("\"EMAIL\",\n", $controlFile);
+    assertStringContainsString('"PHONE" FILLER', $controlFile);
+    assertStringContainsString('"CREATED_AT" DATE', $controlFile);
+    assertStringContainsString("\"IS_ACTIVE\" \"DECODE(:is_active, '', '0', :is_active)\"", $controlFile);
 });
 
 test('it accepts withHeader on input file with wildcard', function () {