[8.x] Adds "asRowid" modifier, making a column an alias of "rowid"

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

@@ -55,6 +55,8 @@ public function compileColumnListing($table)
      */
     public function compileCreate(Blueprint $blueprint, Fluent $command)
     {
+        $this->processRowid($blueprint);
+
         return sprintf('%s table %s (%s%s%s)',
             $blueprint->temporary ? 'create temporary' : 'create',
             $this->wrapTable($blueprint),
@@ -135,6 +137,8 @@ protected function addPrimaryKeys(Blueprint $blueprint)
      */
     public function compileAdd(Blueprint $blueprint, Fluent $command)
     {
+        $this->processRowid($blueprint);
+
         $columns = $this->prefixArray('add column', $this->getColumns($blueprint));
 
         return collect($columns)->reject(function ($column) {
@@ -907,7 +911,30 @@ protected function modifyDefault(Blueprint $blueprint, Fluent $column)
     protected function modifyIncrement(Blueprint $blueprint, Fluent $column)
     {
         if (in_array($column->type, $this->serials) && $column->autoIncrement) {
-            return ' primary key autoincrement';
+            $modifier = ' primary key';
+
+            if (! $column->asRowid) {
+                $modifier .= ' autoincrement';
+            }
+
+            return $modifier;
         }
     }
+
+    /**
+     * Modify blueprint's columns marked as rowid.
+     *
+     * @param  \Illuminate\Database\Schema\Blueprint  $blueprint
+     * @return void
+     */
+    protected function processRowid(Blueprint $blueprint)
+    {
+        collect($blueprint->getAddedColumns())->filter(function ($column) {
+            return $column->asRowid === true;
+        })->each(function ($column) {
+            $column->autoIncrement();
+            $column->nullable();
+            unset($column->unsigned);
+        });
+    }
 }

tests/Database/DatabaseSQLiteSchemaGrammarTest.php

@@ -43,6 +43,30 @@ public function testBasicCreateTable()
         $this->assertEquals($expected, $statements);
     }
 
+    public function testBasicCreateTableWithRowid()
+    {
+        $blueprint = new Blueprint('users');
+        $blueprint->create();
+        $blueprint->increments('id')->asRowid();
+        $blueprint->string('email');
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
+
+        $this->assertCount(1, $statements);
+        $this->assertSame('create table "users" ("id" integer primary key, "email" varchar not null)', $statements[0]);
+
+        $blueprint = new Blueprint('users');
+        $blueprint->increments('id')->asRowid();
+        $blueprint->string('email');
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
+
+        $this->assertCount(2, $statements);
+        $expected = [
+            'alter table "users" add column "id" integer primary key',
+            'alter table "users" add column "email" varchar not null',
+        ];
+        $this->assertEquals($expected, $statements);
+    }
+
     public function testCreateTemporaryTable()
     {
         $blueprint = new Blueprint('users');
@@ -56,6 +80,19 @@ public function testCreateTemporaryTable()
         $this->assertSame('create temporary table "users" ("id" integer not null primary key autoincrement, "email" varchar not null)', $statements[0]);
     }
 
+    public function testCreateTemporaryTableWithRowid()
+    {
+        $blueprint = new Blueprint('users');
+        $blueprint->create();
+        $blueprint->temporary();
+        $blueprint->increments('id')->asRowid();
+        $blueprint->string('email');
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
+
+        $this->assertCount(1, $statements);
+        $this->assertSame('create temporary table "users" ("id" integer primary key, "email" varchar not null)', $statements[0]);
+    }
+
     public function testDropTable()
     {
         $blueprint = new Blueprint('users');
@@ -199,6 +236,17 @@ public function testAddingPrimaryKey()
         $this->assertSame('create table "users" ("foo" varchar not null, primary key ("foo"))', $statements[0]);
     }
 
+    public function testAddingPrimaryKeyAsRowid()
+    {
+        $blueprint = new Blueprint('users');
+        $blueprint->create();
+        $blueprint->string('foo')->primary()->asRowid();
+        $statements = $blueprint->toSql($this->getConnection(), $this->getGrammar());
+
+        $this->assertCount(1, $statements);
+        $this->assertSame('create table "users" ("foo" varchar, primary key ("foo"))', $statements[0]);
+    }
+
     public function testAddingForeignKey()
     {
         $blueprint = new Blueprint('users');