View file hrm-saas-2.5.7/script/database/migrations/2015_06_07_112126_add_employeeID_to_expense_table.php

<?php

use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class AddEmployeeIDToExpenseTable extends Migration {

	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up()
	{
		Schema::table('expenses', function(Blueprint $table)
		{
            $table->unsignedInteger("company_id");
            $table->foreign("company_id")->references("id")->on("companies")->onUpdate("cascade")->onDelete("cascade");

			$table->unsignedInteger("employee_id");
			
			$table->foreign('employee_id')
			      ->references('id')->on('employees')
			      ->onUpdate('cascade')
			      ->onDelete('cascade');

			$table->enum('status',['pending','approved','rejected']);
		});
	}

	/**
	 * Reverse the migrations.
	 *
	 * @return void
	 */
	public function down()
	{
		Schema::table('expenses', function(Blueprint $table)
		{
			$table->dropForeign('expenses_employeeid_foreign');
			$table->dropColumn('employeeID');
			$table->dropColumn('status');
		});
	}

}