如何防止Codeigniter应用程序的加载时间缓慢

Question

I am building an application on codeigniter framework. I have four types of users

• Administrator
• Teacher
• Student
• Parents

and i have created different controllers and same model file for the users above. Also each controller file is minimum 150KB and my application being load slower than expected. so if i divide the controller functions in different files and model functions in different then my app will be faster then now??

Answer 1

i'm not sure which section costs you time but you mix a lot of actions in this controller function all database actions und readings should be done in a model

furthermore if you want to know which things slows down your application, Codeigniter comes with an excellent Benchmarking and Profiling Tool

If you want to see a summary you should use the Profiler class - it will display some benchmark results

just place this line in your controller

$this->output->enable_profiler(TRUE);

For further information take a look at the documentation - below are the links

Codeigniter Profiler

Benchmark Class

Answer 2

This is the function for book return system

 /**********MANAGE LIBRARY/ BOOK RETURN********************/ function book_return($param1 = '', $param2 = '', $param3 = '') { if ($this->session->userdata('admin_login') != 1) redirect('login', 'refresh'); if($param1 == 'create'){ $issue_id = $param2; $issued_info = $this->crud_model->get_issued_info_for_return($issue_id); foreach($issued_info as $row) { $data['book_id'] = $row['book_id']; $data['member_type'] = $row['member_type']; $data['member_id'] = $row['member_id']; $data['issue_date'] = $row['issue_date']; $issue_id = $row['issue_id']; } $data['returned_date'] = date("Y/m/d"); $data['status'] = 1; $this->db->insert('book_return', $data);//can return as default $stock = $this->crud_model->check_max_available_book_no($data['book_id']); $dataUpdate['copy_no'] = $stock+1; // as returned +1 the copy no of to the book store $this->db->where('book_id', $row['book_id']); $this->db->update('book', $dataUpdate); // as returned, delete the issue list to the related issue id $this->db->where('issue_id', $param2); $this->db->delete('book_issue'); $this->session->set_flashdata('flash_message' , get_phrase('book_returned_successfully')); redirect(base_url() . 'index.php?admin/book_return', 'refresh'); } if ($param1 == 'do_update') { $data['issue_date'] = $this->input->post('issue_date'); $data['book_id'] = $this->input->post('book_id'); $data['member_type'] = $this->input->post('user_type'); $data['member_id'] = $this->input->post('member_id'); //$data['return_date'] = date('Y/m/d', strtotime($data['issue_date']. ' + '.$this->curd_model->get_max_borrow_days($set_id, $mem_type).' days')); $data['lib_setting_id'] = $this->input->post('lib_setting_id'); $data['status'] = 1; $this->db->where('set_id', $param2); $this->db->update('library_setting', $data); $this->session->set_flashdata('flash_message' , get_phrase('data_updated')); redirect(base_url() . 'index.php?admin/library_setting', 'refresh'); } else if ($param1 == 'edit') { $page_data['edit_data'] = $this->db->get_where('library_setting', array( 'set_id' => $param2 ))->result_array(); } if ($param1 == 'delete') { $this->db->where('return_id', $param2); $this->db->delete('book_return'); $this->session->set_flashdata('flash_message' , get_phrase('return_deleted')); redirect(base_url() . 'index.php?admin/book_return', 'refresh'); } $page_data['serialNo'] = 1; $page_data['serialNum'] = 1; $page_data['book_return_by_staff'] = $this->crud_model->get_book_return_list(2); $page_data['book_return_by_student'] = $this->crud_model->get_book_return_list(1); $page_data['page_name'] = 'book_return'; $page_data['page_title'] = get_phrase('book_return'); $this->load->view('backend/index', $page_data); }