CodeIgniter

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CodeIgniter

• CodeIgniter is a powerful PHP framework with a
  very small footprint, built for PHP coders who
  need a simple and elegant toolkit to create
  full-featured web applications
• Shofiq Sulaiman shofiqsula_at_yahoo.com

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• HTML
• ltform method"POST" action"index.php"gt
• lttablegt .
• CSS
• .input
• width140px.
• Javascript
• ltscriptgt
• function ()
• PHP
• lt?php
• link mysql_connect('localhost', 'root',
  'sula')
• mysql_select_db('mitm')
• Query Database
• INSERT INTO
• buku_tamu (BukuTamuNama,BukuTamuEmail,BukuTamuIs
  i)

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• Perawatan
• Pembaharuan
• Tetapi, adakah
• keunggulannya ?

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• Adalah sekumpulan fungsi, class, dan
  aturan-aturan.
• Berbeda dengan library yang sifatnya untuk tujuan
  tertentu saja, framework bersifat menyeluruh
  mengatur bagaimana kita membangun aplikasi.
• Lebih Cepat, Lebih Baik.
• Developer akan lebih fokus pada pokok
  permasalahan (masalah koneksi database, form
  validation, GUI, security, dsb telah disediakan
  oleh framework atau library).
• Teknologi tinggi berbiaya rendah
• Alih-alih membangun semuanya sendirian, lebih
  baik menggunakan resource yang sudah ada dan
  teruji (Ancaman Sang Naga, Ming Zeng, hal 55)

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• Model
• Connects business objects and database tables to
  create a persistable domain model where logic and
  data are presented in one wrapping.
• View
• Helper classes to display html elements in your
  views.
• Controller
• Is made up of one or more actions that performs
  its purpose and then either renders a template or
  redirects to another action. An action is defined
  as a public method in the controller, which will
  automatically be made accessible to the
  web-server through a mod_rewrite mapping.

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• The Model represents your data structures.
  Typically your model classes will contain
  functions that help you retrieve, insert, and
  update information in your database.
• The View is the information that is being
  presented to a user. A View will normally be a
  web page, but in CodeIgniter, a view can also be
  a page fragment like a header or footer. It can
  also be an RSS page, or any other type of "page".
• The Controller serves as an intermediary between
  the Model, the View, and any other resources
  needed to process the HTTP request and generate a
  web page.

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• Keuntungan
• Struktur yang konsisten. Sangat berguna bila
  developer banyak dan turnover tinggi.
• Struktur merupakan best practices. Semua sudah
  ditempatkan di tempat yang paling sesuai.
• Dapat belajar tentang desain aplikasi yang baik.
• Hanya library dan helper yang dibutuhkan yang
  diload.
• Dokumentasi yang lengkap
• Kerugian
• Butuh investasi waktu belajar dan adaptasi

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• Web Server Database
• Apache, PHP, MySQL, WAMP, LAMP, AppServ, dsb
• Editor Code
• PSPad, Dreamweaver, Notepad, dsb
• Browser
• IE, Firefox Mozila, Chrome, Opera, Safari, dsb
• CodeIgniter
• CodeIgniter_1.7.0.zip
• Jika belum ada sebagian atau seluruhnya belum
• ada, anda dapat ambil di \\sulaiman\windows\
• Ekstrak CodeIgniter_1.7.0.zip dan langsung jalan ?

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1. The index.php serves as the front controller,
   initializing the base resources needed to run
   CodeIgniter.
2. The Router examines the HTTP request to determine
   what should be done with it.
3. If a cache file exists, it is sent directly to
   the browser, bypassing the normal system
   execution.
4. Security. Before the application controller is
   loaded, the HTTP request and any user submitted
   data is filtered for security.
5. The Controller loads the model, core libraries,
   plugins, helpers, and any other resources needed
   to process the specific request.
6. The finalized View is rendered then sent to the
   web browser to be seen. If caching is enabled,
   the view is cached first so that on subsequent
   requests it can be served.

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• A Controller is simply a class file that is named
  in a way that can be associated with a URI.
• The second segment of the URI determines which
  function in the controller gets called.
• If your URI contains more then two segments they
  will be passed to your function as parameters.
• A view is simply a web page, or a page fragment,
  like a header, footer, sidebar, etc.
• To load a particular view file you will use the
  following function
• this-gtload-gtview('name, data)
• Models are PHP classes that are designed to work
  with information in your database.
• To load a model you will use the following
  function
• this-gtload-gtmodel('Model_name')

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• helper file is simply a collection of functions
  in a particular category, performs one specific
  task, with no dependence on other functions
• Loading a helper file is quite simple using the
  following function
• this-gtload-gthelper('name')
• Auto-loading Helpers in application/config/autoloa
  d.php file
• Once you've loaded the Helper File containing the
  function you intend to use, you'll call it the
  way you would a standard PHP function.
• Plugins work almost identically to Helpers
• plugin usually provides a single function,
  whereas a Helper is usually a collection of
  functions
• Loading a plugin file is quite simple using the
  following function
• this-gtload-gtplugin('name')
• Auto-loading Plugins in application/config/autoloa
  d.php file
• Menggunakan fungsi dalam library
• this-gtsomeclass-gtsome_function()  // Object
  instances will always be lower case

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• lt?php if ( ! defined('BASEPATH')) exit('No direct
  script access allowed') class Someclass
      function some_function()     ?gt
• XSS Filtering
• config'global_xss_filtering' TRUE
• Active Record
• query this-gtdb-gtget('mytable')// Produces
  SELECT FROM mytable
• Parser
• lth5gtjudullt/h5gt
• this-gtparser-gtparse(judul', CodeIgniter)

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• Fungsi
• function SetTanggal(tanggal)
  blnarray('Januari','Februari','Maret','April','M
  ei','Juni','Juli ,'Agustus,
  'September','Oktober','November','Desember')
• tlen sizeof(bln)
• tglexplode('-',tanggal)
• for (t0tlttlent)
• if (tgl1t1) tgl1blnt
• tanggaltgl2.' '.tgl1.' '.tgl0
• return tanggal
• Pemakaian
• tanggal SetTanggal(2009-05-03)

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• Class
• class Waktu
• function Waktu()
• function SetWaktu(waktu)
• wakt explode(" ",waktu)
• tanggal wakt0
• return tanggal.' '.wakt1
• Pemakaian
• waktuObj new Waktu()
• waktu waktuObj-gtSetWaktu(2009-05-03
  121320)

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CREATE DATABASE mitm USE mitm CREATE
TABLE buku_tamu ( BukuTamuId int(10) NOT
NULL auto_increment, BukuTamuNama char(30)
default NULL, BukuTamuEmail char(50) default
NULL, BukuTamuIsi char(255) default NULL,
BukuTamuWaktu datetime default NULL, PRIMARY
KEY (BukuTamuId) ) ENGINEInnoDB
AUTO_INCREMENT2 DEFAULT CHARSETlatin1 insert
into buku_tamu(BukuTamuId,BukuTamuNama,Buku
TamuEmail,BukuTamuIsi,BukuTamuWaktu) values
(1,'Sulaiman','shofiqsula_at_yahoo.com','Yang
pertama nie','2009-05-23 132152')
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• Telah diberikan contoh untuk menampilkan data
  buku tamu dari
• database di atas
• Dengan code di atas kita dapat melihat daftar
  buku tamu sekaligus
• menambahkannnya
• Silahkan anda lengkapi untuk aksi edit dan delete
  data
• Setelah itu tambahkan paging

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• Banyak hal dalam CodeIgniter yang belum
  tersampaikan
• Mohon maaf dan terima kasih