student 的 controller 和 view

<?php

class Student extends MY_Controller {

   public function __construct() {

        parent::__construct();

   }

   public function index() {

    // redirect to the listing page

    $this->listing();

   }

   public function add() {

    $this->load->helper('form');

    // display information for the view

    $data['title'] = "Classroom: Add Student";

    $data['headline'] = "Add a New Student";

    $data['include'] = 'student_add';

    $data['uid'] = $this->session->userdata('uid');

    $data['is_admin'] = $this->session->userdata('is_admin');

    $this->load->view('template', $data);

   }

   public function create() {

    $this->load->helper('url');

    $this->load->model('MStudent','',TRUE);

    $this->MStudent->add_student($_POST);

    redirect('student/listing','refresh');

   }

    public function listing()

    {

        $this->load->library('table');

        $this->load->model('MStudent','',TRUE);

        if ($this->session->userdata('is_admin')) {

            $students = $this->MStudent->list_all_students();

        } else {

            $students = $this->MStudent->list_students($this->session->userdata('uid'));

        }

        // display information for the view

        $data['title'] = "Classroom: Student Listing";

        $data['headline'] = "Student Listing";

        $data['include'] = 'student_listing';

        $data['uid'] = $this->session->userdata('uid');

        $data['is_admin'] = $this->session->userdata('is_admin');

        $data['students'] = $students;

        $this->load->view('template', $data);

    }

    public function edit()

    {

        $this->load->helper('form');

        $id = $this->uri->segment(3);

        $this->load->model('MStudent','',TRUE);

        $data['row'] = $this->MStudent->get_student($id)->result();

        // display information for the view

        $data['title'] = "Classroom: Edit Student";

        $data['headline'] = "Edit Student Information";

        $data['include'] = 'student_edit';

        $data['uid'] = $this->session->userdata('uid');

        $data['is_admin'] = $this->session->userdata('is_admin');

        $this->load->view('template', $data);

    }

    public function update()

    {

        $this->load->model('MStudent','',TRUE);

        $this->MStudent->update_student($_POST['id'], $_POST);

        redirect('student/listing','refresh');

    }

    public function delete()

    {

        $id = $this->uri->segment(3);

        $this->load->model('MStudent','',TRUE);

        $this->MStudent->delete_student($id);

        redirect('student/listing','refresh');

    }

}

/* End of file student.php */

/* Location: ./application/controllers/student.php */

<?php

    echo form_open('student/create');

    // an array of the fields in the student table

    $field_array = array('s_name' => 'Student Name','p_name' => 'Parent Name','address' => 'Address','city' => 'City','state' => 'State','zip' => 'Zip','phone' => 'Phone','email' => 'Email');

    echo form_hidden('user_id', $uid);

    foreach($field_array as $field => $label) {

      echo '<p>';

      echo form_label($label, $field);

      echo form_input(array('name' => $field, 'value' => set_value($field)));

      echo '</p>';

    }

    // not setting the value attribute omits the submit from the $_POST array

    echo form_submit('', 'Add');

    echo form_close();

/* End of file student_add.php */

/* Location: ./application/views/student_add.php */

<?php

    echo form_open('student/update');

    // an array of the fields in the student table

    $field_array = array('s_name' => 'Student Name','p_name' => 'Parent Name','address' => 'Address','city' => 'City','state' => 'State','zip' => 'Zip','phone' => 'Phone','email' => 'Email');

    echo form_hidden('id', $row[0]->id);

    foreach($field_array as $field => $label) {

      echo '<p>';

      echo form_label($label, $field);

      echo form_input(array('name' => $field, 'value' => $row[0]->$field));

      echo '</p>';

    }

    // not setting the value attribute omits the submit from the $_POST array

    echo form_submit('', 'Update');

    echo form_close();

/* End of file student_edit.php */

/* Location: ./application/views/student_edit.php */

<?php

    // generate HTML table from query results

    $tmpl = array (

        'table_open' => '<table>',

        'heading_row_start' => '<tr class="table_header">',

        'row_start' => '<tr class="odd_row">'

    );

    $this->table->set_template($tmpl);

    $this->table->set_empty(" ");

    $this->table->set_heading('', 'Child Name', 'Parent Name', 'Address',

            'City', 'State', 'Zip', 'Phone', 'Email');

    $table_row = array();

    foreach ($students as $student) {

        $table_row = NULL;

        $table_row[] = '<span style="white-space: nowrap">' .

        anchor('student/edit/' . $student['id'], 'edit') . ' | ' .

        anchor('student/delete/' . $student['id'], 'delete',

            "onclick=\" return confirm('Are you sure you want to '

                + 'delete the record for ".addslashes($student['s_name'])."?')\"") .

                '</span>';

        $table_row[] = htmlspecialchars($student['s_name']);

        $table_row[] = htmlspecialchars($student['p_name']);

        $table_row[] = htmlspecialchars($student['address']);

        $table_row[] = htmlspecialchars($student['city']);

        $table_row[] = $student['state'];

        $table_row[] = $student['zip'];

        $table_row[] = $student['phone'];

        $table_row[] = mailto($student['email']);

        $this->table->add_row($table_row);

    }

    $students_table = $this->table->generate();

    echo $students_table;

    if (!$is_admin) {

        echo '<br />';

        echo anchor('student/add', 'Add Your Student');

    }

/* End of file student_listing.php */

/* Location: ./application/views/student_listing.php */