snipe-it/app/controllers/admin/SettingsController.php

<?php namespace Controllers\Admin;

use AdminController;
use Input;
use Lang;
use Setting;
use Redirect;
use DB;
use Sentry;
use Str;
use Validator;
use View;

class SettingsController extends AdminController
{
    /**
     * Show a list of all the settings.
     *
     * @return View
     */

    public function getIndex()
    {
        // Grab all the settings
        $settings = Setting::all();

        // Show the page
        return View::make('backend/settings/index', compact('settings'));
    }


    /**
     * Setting update.
     *
     * @param  int  $settingId
     * @return View
     */
    public function getEdit()
    {
        $settings = Setting::orderBy('created_at', 'DESC')->paginate(10);
        $is_gd_installed = extension_loaded('gd');
        return View::make('backend/settings/edit', compact('settings', 'is_gd_installed'));
    }


    /**
     * Setting update form processing page.
     *
     * @param  int  $settingId
     * @return Redirect
     */
    public function postEdit()
    {

        // Check if the asset exists
        if (is_null($setting = Setting::find(1))) {
            // Redirect to the asset management page with error
            return Redirect::to('admin')->with('error', Lang::get('admin/settings/message.update.error'));
        }

        $new = Input::all();


        // Declare the rules for the form validation
        $rules = array(
        "site_name" 	=> 'required|min:3',
        "per_page"   		=> 'required|min:1|numeric',
        "qr_text"		=> 'min:1|max:31'
        );

        // Create a new validator instance from our validation rules
        $validator = Validator::make(Input::all(), $rules);


        // If validation fails, we'll exit the operation now.
        if ($validator->fails()) {
            // Ooops.. something went wrong
            return Redirect::back()->withInput()->withErrors($validator);
        }

        // Update the asset data
            $setting->id = '1';
            $setting->site_name = e(Input::get('site_name'));
            $setting->display_asset_name = e(Input::get('display_asset_name', '0'));
            $setting->display_checkout_date = e(Input::get('display_checkout_date', '0'));
            $setting->per_page = e(Input::get('per_page'));
            $setting->qr_code = e(Input::get('qr_code', '0'));
            $setting->qr_text = e(Input::get('qr_text'));

            // Was the asset updated?
            if($setting->save()) {
                // Redirect to the settings page
                return Redirect::to("admin/settings/app")->with('success', Lang::get('admin/settings/message.update.success'));
            }

            // Redirect to the setting management page
            return Redirect::to("admin/settings/app/edit")->with('error', Lang::get('admin/settings/message.update.error'));

    }




}