插入具有相同文本字段值的多个复选框值（codeigniter）

Question

I'm trying to put values into a MySQL table like this one:

|---sbjct_name---|---level---|

|---------- Physics ----------|----Level 1-----|

|---------- Physics ----------|----Level 2-----|

|---------- Physics ----------|----Level 3-----|

|---------- Calculus ---------|----Level 1-----|

|---------- Calculus ---------|----Level 2-----|

(I don't know how to make table but I guess u get the idea)

Let say I'm going to put "Math" into sbjct_name column alongside with "Level 1", "Level 2", "Level 3" values into the level column.

The basic idea is from this pict (selecting value for a same input text value).

Instead of inserting "Math" multiple times for each level, I'm trying to make it one time submit with checkbox tag. It will be something like this pict (with checkbox).

I don't have any idea how to make this happen (or if it possible in CI).

This is some code from my Controller,

public function add_subject()
{
    $data = array();

    if ($this->input->post('savebttn'))
    {
        $this->form_validation->set_rules('sbjct_name', 'Subject Name', 'trim|required|xss_clean');
        $this->form_validation->set_rules('level', 'Level', '|required|is_natural');
        $this->form_validation->set_error_delimiters('<span class="fielderror">','</span>');

        if ($this->form_validation->run() == FALSE)
        {
            $data['reset'] = FALSE;
        }
        else
        {
           //I don't know what to do here
           //I don't know what to do here
           //I don't know what to do here
           //I don't know what to do here
        }
    }
    $data['level'] = $this->admin_model->get_checkbox_option('level', 'lvl_id', 'lvl_name');
    $data['page'] = 'createsubject';
    $this->load->view('admin/main', $data);
}

This is a checkbox view function in the Model,

public function get_checkbox_option($table, $id, $name, $selected=0)
{
    $query = $this->db->get($table);
    $select= '';
    if ($query->num_rows() > 0)
    {
        foreach ($query->result_array() as $row)
        {
            $selected_option = ($selected == $row[$id]) ? 'selected = "selected" ':' ';
            $select .='<input type="checkbox" name="level" value="'.$row[$id].'" '.$selected_option.'>'.$row[$name].'<br>';
        }
    }
    return $select;
}

This is the form on the View,

    <form action="" method="post" id="createcategoryform">
        <table>
            <tbody>
                <tr>
                    <td><div class="label">Subject Name</div></td>
                    <td><div class="input">
                        <input type="text" name="sbjct_name" size="39" class="ui-corner-all input-text validate[required]">
                        <?=form_error('sbjct_name');?>
                    </div></td>
                </tr>
                <tr>
                    <td><div class="label">Level</div></td>
                    <td><div class="input-text ui-corner-all validate[required]">
                        <?=(isset($level)) ? $level: '';?>
                    </div><?=form_error('level');?></td>
                </tr>
                <tr>
                    <td>&nbsp;</td>
                    <td><input type="submit" value="Save" name="savebttn" class="input-button ui-corner-all ui-state-default"></td>
                </tr>
            </tbody>
        </table>
    </form>

I will be grateful if you can give any clue. :D

Answer 1

first

make your checkbox as an array so it look like this

$select .='<input type="checkbox" name="level[]" value="'.$row[$id].'" '.$selected_option.'>'.$row[$name].'<br>';

give attention to the name. yours name="level" and mine name="level[]" , then you can grab all level as one variable

second

make your controller like this

if ($this->form_validation->run() == FALSE)
        {
            $data['reset'] = FALSE;
        }
        else
        {
          // make array container for input batch
          $insertData = array();
          if(!empty($this->input->post('level'))) {
              foreach($this->input->post('level') as $level) {
                    $tempArray = array(
                      'sbjct_name' => $this->input->post('sbjct_name'),
                      'level' => $level
                    );

                    array_push($insertData, $tempArray);
              }

              // it's better to put this in model
              // but for example purpose I put it there
              $this->db->insert_batch('table', $insertData);

              //do what you want to do here
          }
        }

hope you get the point @nasamikhail