first upload all files

Modules/Category/Database/Factories/ModelFactory.php

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+<?php
+
+use Modules\Category\Entities\Category;
+
+$factory->define(Category::class, function (Faker\Generator $faker) {
+    return [
+        'name' => $faker->word(),
+        'slug' => $faker->slug(),
+        'on_navigation' => $faker->boolean(),
+        'is_active' => $faker->boolean(),
+    ];
+});

Modules/Category/Database/Migrations/2017_11_09_141332910964_create_categories_table.php

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+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateCategoriesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('categories', function (Blueprint $table) {
+            $table->increments('id');
+            $table->integer('parent_id')->unsigned()->nullable();
+            $table->string('slug')->unique();
+            $table->integer('position')->unsigned()->nullable();
+            $table->boolean('is_searchable');
+            $table->boolean('is_active');
+            $table->timestamps();
+
+            $table->foreign('parent_id')->references('id')->on('categories')->onDelete('cascade');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('categories');
+    }
+}

Modules/Category/Database/Migrations/2017_11_09_141332931539_create_category_translations_table.php

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+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateCategoryTranslationsTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('category_translations', function (Blueprint $table) {
+            $table->increments('id');
+            $table->integer('category_id')->unsigned();
+            $table->string('locale');
+            $table->string('name');
+
+            $table->unique(['category_id', 'locale']);
+            $table->foreign('category_id')->references('id')->on('categories')->onDelete('cascade');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('category_translations');
+    }
+}

Modules/Category/Database/Seeders/CategoryDatabaseSeeder.php

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+<?php
+
+namespace Modules\Category\Database\Seeders;
+
+use Illuminate\Database\Seeder;
+use Modules\Category\Entities\Category;
+
+class CategoryDatabaseSeeder extends Seeder
+{
+    /**
+     * Run the database seeds.
+     *
+     * @return void
+     */
+    public function run()
+    {
+        factory(Category::class, 20)->create();
+    }
+}