How to insert corporate details into database

You used and alias when you initiated your model.

PHP Code:

---------------------> Model -----------------------> Model Alias Name.
$this->load->model('Afghanistancorporate_model', 'afghanistancorporate_model'); 


You only need the first one the alias is if you want to use a different name for your model.

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Yes that is the correct way of doing it.

On your model calls you can assigning a result from the insert and delete.
All the model methods and QueryBuilder return a result from the methods.

Im almost at the my destination. But cant get the $product to enter temp_1

The first line of this coding is in the Controller and other lines in the Model;

PHP Code:

    $this->username_model->update_product($product);

public function update_product($product)
    {
    $this->db->where('user_name', $lcuser);
    $data = array('temp_1'=> $product);
    $this->db->update('tbl_members', $data);
    } 


If I use "insert" it creates a new line & I dont want that. Im assuming I wont need delete coz a new entry should replace the old.

What can be wrong with the above?