Do not generate foreign key for simple UUID column

src/Generators/MigrationGenerator.php

@@ -400,6 +400,7 @@ private function shouldAddForeignKeyConstraint(\Blueprint\Models\Column $column)
             return true;
         }
 
-        return in_array($column->dataType(), ['id', 'uuid']) && config('blueprint.use_constraints');
+        return config('blueprint.use_constraints')
+            && ($column->dataType() === 'id' || $column->dataType() === 'uuid' && Str::endsWith($column->name(), '_id'));
     }
 }

src/Lexers/ModelLexer.php

@@ -187,7 +187,10 @@ private function buildModel(string $name, array $columns)
                 return collect($modifier)->containsStrict('foreign') || collect($modifier)->has('foreign');
             })->flatten()->first();
 
-            if (($column->name() !== 'id') && ($column->dataType() === 'id') || $foreign) {
+            if (($column->name() !== 'id' && $column->dataType() === 'id')
+                || ($column->dataType() === 'uuid' && Str::endsWith($column->name(), '_id'))
+                || $foreign
+            ) {
                 $reference = $column->name();
 
                 if ($foreign && $foreign !== 'foreign') {

tests/Feature/BlueprintTest.php

@@ -130,6 +130,7 @@ public function it_parses_uuid_shorthand()
                 'Person' => [
                     'id' => 'uuid primary',
                     'timestamps' => 'timestamps',
+                    'company_id' => 'uuid',
                 ],
             ],
         ], $this->subject->parse($blueprint));

tests/Feature/Generators/MigrationGeneratorTest.php

@@ -780,6 +780,64 @@ public function output_works_with_polymorphic_relationships_laravel6()
         $this->assertEquals(['created' => [$post_migration, $user_migration, $image_migration]], $this->subject->output($tree));
     }
 
+    /**
+     * @test
+     */
+    public function output_does_not_generate_relationship_for_uuid()
+    {
+        $this->app->config->set('blueprint.use_constraints', true);
+
+        $this->files->expects('stub')
+            ->with('migration.stub')
+            ->andReturn($this->stub('migration.stub'));
+
+        $now = Carbon::now();
+        Carbon::setTestNow($now);
+
+        $timestamp_path = 'database/migrations/' . $now->format('Y_m_d_His') . '_create_vats_table.php';
+
+        $this->files->expects('exists')
+            ->with($timestamp_path)
+            ->andReturn(false);
+
+        $this->files->expects('put')
+            ->with($timestamp_path, $this->fixture('migrations/uuid-without-relationship.php'));
+
+        $tokens = $this->blueprint->parse($this->fixture('drafts/uuid-without-relationship.yaml'));
+        $tree = $this->blueprint->analyze($tokens);
+
+        $this->assertEquals(['created' => [$timestamp_path]], $this->subject->output($tree));
+    }
+
+    /**
+     * @test
+     */
+    public function output_generates_constraint_for_uuid()
+    {
+        $this->app->config->set('blueprint.use_constraints', true);
+
+        $this->files->expects('stub')
+            ->with('migration.stub')
+            ->andReturn($this->stub('migration.stub'));
+
+        $now = Carbon::now();
+        Carbon::setTestNow($now);
+
+        $timestamp_path = 'database/migrations/' . $now->format('Y_m_d_His') . '_create_people_table.php';
+
+        $this->files->expects('exists')
+            ->with($timestamp_path)
+            ->andReturn(false);
+
+        $this->files->expects('put')
+            ->with($timestamp_path, $this->fixture('migrations/uuid-shorthand-constraint.php'));
+
+        $tokens = $this->blueprint->parse($this->fixture('drafts/uuid-shorthand.yaml'));
+        $tree = $this->blueprint->analyze($tokens);
+
+        $this->assertEquals(['created' => [$timestamp_path]], $this->subject->output($tree));
+    }
+
     public function modelTreeDataProvider()
     {
         return [
@@ -797,6 +855,7 @@ public function modelTreeDataProvider()
             ['drafts/disable-auto-columns.yaml', 'database/migrations/timestamp_create_states_table.php', 'migrations/disable-auto-columns.php'],
             ['drafts/uuid-shorthand.yaml', 'database/migrations/timestamp_create_people_table.php', 'migrations/uuid-shorthand.php'],
             ['drafts/uuid-shorthand-invalid-relationship.yaml', 'database/migrations/timestamp_create_age_cohorts_table.php', 'migrations/uuid-shorthand-invalid-relationship.php'],
+            ['drafts/uuid-without-relationship.yaml', 'database/migrations/timestamp_create_vats_table.php', 'migrations/uuid-without-relationship.php'],
             ['drafts/unconventional-foreign-key.yaml', 'database/migrations/timestamp_create_states_table.php', 'migrations/unconventional-foreign-key.php'],
             ['drafts/resource-statements.yaml', 'database/migrations/timestamp_create_users_table.php', 'migrations/resource-statements.php'],
             ['drafts/enum-options.yaml', 'database/migrations/timestamp_create_messages_table.php', 'migrations/enum-options.php'],

tests/fixtures/drafts/model-relationships.yaml

@@ -1,6 +1,7 @@
 models:
   Subscription:
     user_id: id
+    product_id: uuid
     relationships:
       belongsToMany: Team
       hasMany: Order

tests/fixtures/drafts/uuid-shorthand.yaml

@@ -1,4 +1,5 @@
 models:
   Person:
     uuid
+    company_id: uuid
     timestamps

tests/fixtures/drafts/uuid-without-relationship.yaml

@@ -0,0 +1,3 @@
+models:
+  Vat:
+    uuid: uuid

tests/fixtures/migrations/uuid-shorthand-constraint.php

@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreatePeopleTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::disableForeignKeyConstraints();
+
+        Schema::create('people', function (Blueprint $table) {
+            $table->uuid('id')->primary();
+            $table->uuid('company_id');
+            $table->foreign('company_id')->references('id')->on('companies')->onDelete('cascade');
+            $table->timestamps();
+        });
+
+        Schema::enableForeignKeyConstraints();
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('people');
+    }
+}

tests/fixtures/migrations/uuid-shorthand.php

@@ -15,6 +15,7 @@ public function up()
     {
         Schema::create('people', function (Blueprint $table) {
             $table->uuid('id')->primary();
+            $table->uuid('company_id');
             $table->timestamps();
         });
     }

tests/fixtures/migrations/uuid-without-relationship.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+class CreateVatsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('vats', function (Blueprint $table) {
+            $table->id();
+            $table->uuid('uuid');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('vats');
+    }
+}

tests/fixtures/models/model-relationships-laravel8.php

@@ -16,6 +16,7 @@ class Subscription extends Model
      */
     protected $fillable = [
         'user_id',
+        'product_id',
     ];
 
     /**
@@ -53,4 +54,9 @@ public function user()
     {
         return $this->belongsTo(\App\User::class);
     }
+
+    public function product()
+    {
+        return $this->belongsTo(\App\Product::class);
+    }
 }