fix: alias with dotted names did not work

Author: tpetry

src/Language/Alias.php

@@ -6,10 +6,12 @@
 
 use Illuminate\Contracts\Database\Query\Expression;
 use Illuminate\Database\Grammar;
+use Tpetry\QueryExpressions\Concerns\IdentifiesDriver;
 use Tpetry\QueryExpressions\Concerns\StringizeExpression;
 
 class Alias implements Expression
 {
+    use IdentifiesDriver;
     use StringizeExpression;
 
     public function __construct(
@@ -18,10 +20,14 @@ public function __construct(
     ) {
     }
 
-    public function getValue(Grammar $grammar)
+    public function getValue(Grammar $grammar): string
     {
         $expression = $this->stringize($grammar, $this->expression);
-        $name = $grammar->wrap($this->name);
+        $name = match ($this->identify($grammar)) {
+            'mysql' => '`'.str_replace('`', '``', $this->name).'`',
+            'pgsql', 'sqlite' => '"'.str_replace('"', '""', $this->name).'"',
+            'sqlsrv' => '['.str_replace(']', ']]', $this->name).']',
+        };
 
         return "{$expression} as {$name}";
     }

tests/Language/AliasTest.php

@@ -15,8 +15,16 @@
 
 it('can alias an expression')
     ->expect(new Alias(new Expression(1), 'num'))
-    ->toBeExecutable(['val int'])
+    ->toBeExecutable()
     ->toBeMysql('1 as `num`')
     ->toBePgsql('1 as "num"')
     ->toBeSqlite('1 as "num"')
     ->toBeSqlsrv('1 as [num]');
+
+it('can alias dotted names')
+    ->expect(new Alias(new Expression(1), 'dotted.dotted'))
+    ->toBeExecutable()
+    ->toBeMysql('1 as `dotted.dotted`')
+    ->toBePgsql('1 as "dotted.dotted"')
+    ->toBeSqlite('1 as "dotted.dotted"')
+    ->toBeSqlsrv('1 as [dotted.dotted]');