public function editLimitTrade($wallet_id = '')
 {
     if ($wallet_id == '') {
         return Redirect::to('admin/setting/limit-trade');
     }
     $limit_trade = WalletLimitTrade::leftjoin('wallets', 'wallet_limittrade.wallet_id', '=', 'wallets.id')->select('wallet_limittrade.*', 'wallets.type as wallet_type', 'wallets.name as wallet_name')->where('wallet_id', $wallet_id)->first();
     if (!isset($limit_trade->id)) {
         return Redirect::to('admin/setting/limit-trade')->with('error', Lang::get('admin_messages.limit_trade_not_exist'));
     }
     $data['limit_trade'] = $limit_trade;
     return View::make('admin.limittrade.edit_limittrade', $data);
 }