Codeigniter Having undefined index

I need to access a table by referencing another table ID and by doing so I created first a foreach loop to retrieve the first table data then give its ID reference to the second table. I have done it in my other function but I don’t know in this function prompts me that it’s undefined index. Here is my model:

function retrieve_Sched($id)
{
    $this->db->select('*');
    $this->db->from('schedule');
    $this->db->where('EmpID',$id);
    $query = $this->db->get();

    if($query->num_rows() == 0)
    {
        return false;
    }
    else
    {
        return $query->result_array();
    }
}

and here is the controller function:

foreach($data['result'] as $val)
{
    $data['schedule'] = $this->DBmodel->retrieve_Sched($val['EmpID']);

    if($data['schedule'] == false)
    {
        $consTimeIn = '05:30';
        $consLunchOut = '10:50';
        $consLunchIn = '13:00';
        $consTimeOut = '17:00';
    }
    else
    {
        $consTimeIn = $data['schedule']['TimeFrom'];
        $consLunchOut = $data['schedule']['LunchOut'];
        $consLunchIn = $data['schedule']['LunchIn'];
        $consTimeOut = $data['schedule']['TimeTo']; 
    }
}

This is the error that I get:

ERROR – 2016-05-23 09:57:02 –> Severity: Notice –> Undefined index: TimeFrom C:xampphtdocsTMSapplicationcontrollerstms.php 482
ERROR – 2016-05-23 09:57:02 –> Severity: Notice –> Undefined index: LunchOut C:xampphtdocsTMSapplicationcontrollerstms.php 483
ERROR – 2016-05-23 09:57:02 –> Severity: Notice –> Undefined index: LunchIn C:xampphtdocsTMSapplicationcontrollerstms.php 484
ERROR – 2016-05-23 09:57:02 –> Severity: Notice –> Undefined index: TimeTo C:xampphtdocsTMSapplicationcontrollerstms.php 485
ERROR – 2016-05-23 09:58:41 –> Severity: Notice –> Undefined index: TimeFrom C:xampphtdocsTMSapplicationcontrollerstms.php 482
ERROR – 2016-05-23 09:58:41 –> Severity: Notice –> Undefined index: LunchOut C:xampphtdocsTMSapplicationcontrollerstms.php 483
ERROR – 2016-05-23 09:58:41 –> Severity: Notice –> Undefined index: LunchIn C:xampphtdocsTMSapplicationcontrollerstms.php 484
ERROR – 2016-05-23 09:58:41 –> Severity: Notice –> Undefined index: TimeTo C:xampphtdocsTMSapplicationcontrollerstms.php 485

Answer

This solves my problem:

if($data['result'] == false)
    {
        echo 'Sorry files have already been processed';
    }
    else
    {
        foreach($data['result'] as $val)
        {
            $data['check'] = $this->DBmodel->check_Sked($val['EmpID']);

            if($data['check'] == false)
            {
                $consTimeIn = "05:30";
                $consLunchOut = "10:50";
                $consLunchIn = "13:00";
                $consTimeOut = "17:00";
            }
            else
            {
                $data['schedule'] = $this->DBmodel->retrieve_sched($val['EmpID'],$val['ValidDate']);

                if($data['schedule'] == false)
                {
                    $consTimeIn = "05:30";
                    $consLunchOut = "10:50";
                    $consLunchIn = "13:00";
                    $consTimeOut = "17:00";
                }
                else
                {
                    foreach($data['schedule'] as $value)
                    {
                        $conTimeIn = $value['TimeFrom'];
                        $consTimeOut = $value['TimeTo'];

                        if($value['LunchOut'] == NULL || $value['LunchOut'] == "")
                        {
                            $consLunchOut = @date('H:i',@strtotime($consTimeIn,'+4 hour'));
                        }
                        else
                        {
                            $consLunchOut = $value['LunchOut'];
                        }

                        if($value['LunchIn'] == NULL || $value['LunchIn'] == "")
                        {
                            $consLunchIn = @date('H:i',@strtotime($consTimeIn,'+6 hour'));
                        }
                        else
                        {
                            $consLunchIn = $value['LunchIn'];
                        }
                    }
                }
            }