Prevent inserting to database If total value is equal to 0, - php

Question

When adding scores for students, I would like those with a total score of 0 not to be inserted into the database at all.
Controller:
public function entrymarks()
{
$this->form_validation->set_error_delimiters('', '');
$this->form_validation->set_rules('exam_group_class_batch_exam_subject_id', 'Subject', 'required|trim|xss_clean');
if ($this->form_validation->run() == false) {
$data = array(
'exam_group_class_batch_exam_subject_id' => form_error('exam_group_class_batch_exam_subject_id'),
);
$array = array('status' => 0, 'error' => $data);
echo json_encode($array);
} else {
$exam_group_student_id = $this->input->post('exam_group_student_id');
$insert_array = array();
$update_array = array();
if (!empty($exam_group_student_id)) {
foreach ($exam_group_student_id as $exam_group_student_key => $exam_group_student_value) {
$attendance_post = $this->input->post('exam_group_student_attendance_' . $exam_group_student_value);
if (isset($attendance_post)) {
$attendance = $this->input->post('exam_group_student_attendance_' . $exam_group_student_value);
} else {
$attendance = "present";
}
$array = array(
'exam_group_class_batch_exam_subject_id' => $this->input->post('exam_group_class_batch_exam_subject_id'),
'exam_group_class_batch_exam_student_id' => $exam_group_student_value,
'attendence' => $attendance,
'get_ca1' => $this->input->post('exam_group_student_ca1_' . $exam_group_student_value),
'get_ca2' => $this->input->post('exam_group_student_ca2_' . $exam_group_student_value),
'get_ca3' => $this->input->post('exam_group_student_ca3_' . $exam_group_student_value),
'get_ca4' => $this->input->post('exam_group_student_ca4_' . $exam_group_student_value),
'get_exam' => $this->input->post('exam_group_student_exam_' . $exam_group_student_value),
'note' => $this->input->post('exam_group_student_note_' . $exam_group_student_value),
);
$insert_array[] = $array;
}
}
if ( intval($array['get_ca1'] +$array['get_ca2']+$array['get_ca3']+$array['get_ca4']+$array['get_exam'] ) > 0 ) {
$this->examgroupstudent_model->add_result($insert_array);
}
}
$array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('success_message'));
echo json_encode($array);
}
}
I will like to first get the sum total of get_ca1+get_ca2+get_ca3+get_ca4+get_exam then if it is 0, don't insert.
Please how do I do this?

Answer 1

I don't think you can access the array value on the fly without any workaround, and you've placed the insert outside the foreach.
It would be best if you spent more time on these.
Code Indexing
Use proper IDE. Not like notepad.
Debug all and every line for errors.
Do like this.
Since you're not using batch insert, you can do it one by one.
$cal1 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$cal2 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$cal3 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$cal4 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$exam = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$total = $cal1 + $cal2 + $cal3 + $cal4 + $exam;
$array = array(
'exam_group_class_batch_exam_subject_id' => $this->input->post('exam_group_class_batch_exam_subject_id'),
'exam_group_class_batch_exam_student_id' => $exam_group_student_value,
'attendence' => $attendance,
'get_ca1' => $cal1,
'get_ca2' => $cal2,
'get_ca3' => $cal3,
'get_ca4' => $cal4,
'get_exam' => $exam,
'note' => $this->input->post('exam_group_student_note_' . $exam_group_student_value)
);
if ($total > 0) {
$this->examgroupstudent_model->add_result($array);
}
So final code will be
public function entrymarks()
{
$this->form_validation->set_error_delimiters('', '');
$this->form_validation->set_rules('exam_group_class_batch_exam_subject_id', 'Subject', 'required|trim|xss_clean');
if ($this->form_validation->run() == false) {
$data = array(
'exam_group_class_batch_exam_subject_id' => form_error('exam_group_class_batch_exam_subject_id'),
);
$array = array('status' => 0, 'error' => $data);
echo json_encode($array);
} else {
$exam_group_student_id = $this->input->post('exam_group_student_id');
$insert_array = array();
$update_array = array();
if (!empty($exam_group_student_id)) {
foreach ($exam_group_student_id as $exam_group_student_key => $exam_group_student_value) {
$attendance_post = $this->input->post('exam_group_student_attendance_' . $exam_group_student_value);
if (isset($attendance_post)) {
$attendance = $this->input->post('exam_group_student_attendance_' . $exam_group_student_value);
} else {
$attendance = "present";
}
$cal1 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$cal2 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$cal3 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$cal4 = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$exam = $this->input->post('exam_group_student_ca1_' . $exam_group_student_value);
$total = $cal1 + $cal2 + $cal3 + $cal4 + $exam;
$array = array(
'exam_group_class_batch_exam_subject_id' => $this->input->post('exam_group_class_batch_exam_subject_id'),
'exam_group_class_batch_exam_student_id' => $exam_group_student_value,
'attendence' => $attendance,
'get_ca1' => $cal1,
'get_ca2' => $cal2,
'get_ca3' => $cal3,
'get_ca4' => $cal4,
'get_exam' => $exam,
'note' => $this->input->post('exam_group_student_note_' . $exam_group_student_value)
);
if ($total > 0) {
$this->examgroupstudent_model->add_result($array);
}
}
}
}
$array = array('status' => '1', 'error' => '', 'message' => $this->lang->line('success_message'));
echo json_encode($array);
}