[8.x] Add invisible modifier for MySQL columns (#40002)

* add invisible modifier for MySQL columns.

* Update ColumnDefinition.php

Co-authored-by: Taylor Otwell <taylor@laravel.com>

src/Illuminate/Database/Schema/ColumnDefinition.php

@@ -17,6 +17,7 @@
  * @method $this from(int $startingValue) Set the starting value of an auto-incrementing field (MySQL / PostgreSQL)
  * @method $this generatedAs(string|Expression $expression = null) Create a SQL compliant identity column (PostgreSQL)
  * @method $this index(string $indexName = null) Add an index
+ * @method $this invisible() Specify that the column should be invisible to "SELECT *" (MySQL)
  * @method $this nullable(bool $value = true) Allow NULL values to be inserted into the column
  * @method $this persisted() Mark the computed generated column as persistent (SQL Server)
  * @method $this primary() Add a primary index

src/Illuminate/Database/Schema/Grammars/MySqlGrammar.php

@@ -15,7 +15,7 @@ class MySqlGrammar extends Grammar
      * @var string[]
      */
     protected $modifiers = [
-        'Unsigned', 'Charset', 'Collate', 'VirtualAs', 'StoredAs', 'Nullable',
+        'Unsigned', 'Charset', 'Collate', 'VirtualAs', 'StoredAs', 'Nullable', 'Invisible',
         'Srid', 'Default', 'Increment', 'Comment', 'After', 'First',
     ];
 
@@ -1038,6 +1038,20 @@ protected function modifyNullable(Blueprint $blueprint, Fluent $column)
         }
     }
 
+    /**
+     * Get the SQL for an invisible column modifier.
+     *
+     * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
+     * @param  \Illuminate\Support\Fluent  $column
+     * @return string|null
+     */
+    protected function modifyInvisible(Blueprint $blueprint, Fluent $column)
+    {
+        if (! is_null($column->invisible)) {
+            return ' invisible';
+        }
+    }
+
     /**
      * Get the SQL for a default column modifier.
      *

tests/Database/DatabaseMySqlSchemaGrammarTest.php

@@ -560,6 +560,16 @@ public function testAddingGeneratedColumnWithCharset()
         $this->assertSame('alter table `links` add `url` varchar(2083) character set ascii not null, add `url_hash_virtual` varchar(64) character set ascii as (sha2(url, 256)), add `url_hash_stored` varchar(64) character set ascii as (sha2(url, 256)) stored', $statements[0]);
     }
 
+    public function testAddingInvisibleColumn()
+    {
+        $blueprint = new Blueprint('users');
+        $blueprint->string('secret', 64)->nullable(false)->invisible();
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
+
+        $this->assertCount(1, $statements);
+        $this->assertSame('alter table `users` add `secret` varchar(64) not null invisible', $statements[0]);
+    }
+
     public function testAddingString()
     {
         $blueprint = new Blueprint('users');