feat: add support for GENERATE_UUID

CHANGELOG.md

@@ -6,6 +6,7 @@ Added
 - `Schema\Builder::dropAllTables` works properly, dropping foreign keys, indexes, then tables in order of interleaving (#161)
 - Support for inserting and selecting array of DateTime/Numeric objects (#168)
 - Allow pretending for DDL statements (#170) 
+- Support for GENERATE_UUID() in migrations (#174)
 
 Changed
 - `Query\Builder::lock()` no longer throw an error and will be ignored instead (#156)

src/Schema/Blueprint.php

@@ -20,6 +20,7 @@
 use Colopl\Spanner\Concerns\MarksAsNotSupported;
 use Illuminate\Database\Schema\Blueprint as BaseBlueprint;
 use Illuminate\Database\Schema\ColumnDefinition;
+use Colopl\Spanner\Schema\ColumnDefinition as SpannerColumnDefinition;
 use Illuminate\Support\Fluent;
 
 /**
@@ -93,7 +94,16 @@ public function tinyIncrements($column)
         $this->markAsNotSupported('AUTO_INCREMENT');
     }
 
-    // region Spanner Specific Types
+    /**
+     * @inheritDoc
+     * @return SpannerColumnDefinition
+     */
+    public function uuid($column = 'uuid')
+    {
+        $definition = new SpannerColumnDefinition(['type' => 'uuid', 'name' => $column]);
+        $this->addColumnDefinition($definition);
+        return $definition;
+    }
 
     /**
      * @param  string  $column

src/Schema/ColumnDefinition.php

@@ -0,0 +1,14 @@
+<?php
+
+namespace Colopl\Spanner\Schema;
+
+use Illuminate\Database\Query\Expression;
+use Illuminate\Database\Schema\ColumnDefinition as BaseColumnDefinition;
+
+class ColumnDefinition extends BaseColumnDefinition
+{
+    public function generateUuid(): static
+    {
+        return $this->default(new Expression('generate_uuid()'));
+    }
+}

tests/Schema/BlueprintTest.php

@@ -28,7 +28,7 @@
 
 class BlueprintTest extends TestCase
 {
-    public function testCreateTable(): void
+    public function test_create(): void
     {
         $conn = $this->getDefaultConnection();
 
@@ -37,7 +37,7 @@ public function testCreateTable(): void
             $table->integer('int');
             $table->float('float');
             $table->decimal('decimal');
-            $table->string('name');
+            $table->string('string');
             $table->char('char');
             $table->text('text');
             $table->mediumText('medium_text');
@@ -58,7 +58,7 @@ public function testCreateTable(): void
                 '`int` int64 not null',
                 '`float` float64 not null',
                 '`decimal` numeric not null',
-                '`name` string(255) not null',
+                '`string` string(255) not null',
                 '`char` string(255) not null',
                 '`text` string(max) not null',
                 '`medium_text` string(max) not null',
@@ -72,7 +72,33 @@ public function testCreateTable(): void
         );
     }
 
-    public function test_dropTable(): void
+    public function test_create_with_generateUuid(): void
+    {
+        $conn = $this->getDefaultConnection();
+
+        $blueprint = new Blueprint('t', function (Blueprint $table) {
+            $table->uuid('id')->primary()->generateUuid();
+            $table->string('name');
+        });
+        $blueprint->create();
+
+        $queries = $blueprint->toSql($conn, new Grammar());
+        $this->assertSame(
+            'create table `t` (' . implode(', ', [
+                '`id` string(36) not null default (generate_uuid())',
+                '`name` string(255) not null',
+            ]) . ') primary key (`id`)',
+            $queries[0]
+        );
+
+        $conn->runDdlBatch($queries);
+        $conn->table('t')->insert(['name' => 't']);
+        $row = $conn->table('t')->first();
+        $this->assertSame(36, strlen($row['id']));
+        $this->assertSame('t', $row['name']);
+    }
+
+    public function test_drop(): void
     {
         $conn = $this->getDefaultConnection();