first upload all files

Modules/Media/Database/Migrations/2014_10_26_162751_create_files_table.php

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+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateFilesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('files', function (Blueprint $table) {
+            $table->increments('id');
+            $table->integer('user_id')->unsigned()->index();
+            $table->string('filename')->index();
+            $table->string('disk');
+            $table->string('path');
+            $table->string('extension');
+            $table->string('mime');
+            $table->string('size');
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('files');
+    }
+}

Modules/Media/Database/Migrations/2015_02_27_105241_create_entity_files_table.php

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+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class CreateEntityFilesTable extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::create('entity_files', function (Blueprint $table) {
+            $table->increments('id');
+            $table->integer('file_id')->unsigned()->index();
+            $table->morphs('entity');
+            $table->string('zone')->index();
+            $table->timestamps();
+
+            $table->foreign('file_id')->references('id')->on('files')->onDelete('cascade');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::dropIfExists('entity_files');
+    }
+}