Inserting session user data in php - php

Question

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I added the session in the code and did not logout then login to refresh the variable .. my bad, thanks guy.
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I am using Codeigniter 3.0, I can read the session data, I have tested this by a echo. however when i try to insert into the table I get this error.
Error
Error Number: 1054
Unknown column 'LoginID' in 'field list'
INSERT INTO `Report_Comments` (`Comments`, `ReportID`, `LoginID`) VALUES (',l;', '53', NULL)
Filename: models/report/Report_model.php
Line Number: 58
Code (Model)
function create_comment()
{
$new_comment = array(
'Comments' => $this->input->post('Comments'),
'ReportID' => $this->input->post('ReportID'),
'UserID' => $this->session->userdata('LoginID')
);
$insert = $this->db->insert('Report_Comments', $new_comment);
return $insert;
}

Answer 1

It is always a good idea to double check that you have values assigned to variables before you use them. This revised model function provides some checking.
function create_comment()
{
$comments = $this->input->post('Comments');
$reportID = $this->input->post('ReportID');
$userID = $this->session->userdata('LoginID');
if(isset($reportID) && isset($userID))
{
$new_comment = array(
'Comments' => isset($comments) ? $comments : "",
'ReportID' => $reportID,
'UserID' => $userID
);
return $this->db->insert('Report_Comments', $new_comment);
}
return FALSE;
}
The above operates with the idea that the insert should not be attempted unless the ReportID and UserID values are set with some value. If no comments are present then an empty string will be save to the db.