Download as PDF, PPTX
![PHP & MySQL
<?php
$db = mysql_connect("localhost", "root", "password");
mysql_query("SET NAMES 'utf8'");
mysql_select_db($SERVER['db']);
?>
<html>
<?
$sql="select * from news where Class='1' or Class='3' order by CTDate desc
limit 0,5";
$result= mysql_query($sql);
while ( $arr=mysql_fetch_array($result) ) {
echo <<<NEWSEND
<div class="box">
<span class="box-title-1"> <b> $arr[Title] </b> $arr[CTDate] </span>
<div class="box-content">
$arr[Text]
</div>
</div>
NEWSEND;
}
?>
</html>](https://image.slidesharecdn.com/meet-rails-100505034826-phpapp01/85/Ruby-on-Rails-19-320.jpg)
Uploaded byWen-Tien Chang
遇見 Ruby on Rails
The document introduces Ruby on Rails and provides an overview of its features and benefits. It summarizes the speaker's experience with web development over time, introduces MVC and ORM concepts, and demonstrates Rails through a live coding example. Key advantages of Rails highlighted include its convention over configuration approach, use of Ruby as a dynamic scripting language, and ability to rapidly develop database-backed web applications.
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遇見 Ruby on Rails
- 1. Ruby on Rails ihower@gmail.com Ruby Taiwan 2010/5@
- 2. Agenda • Who amI • My story about web development • Introduction to Rails • Rails on Rails live demo • Why Ruby?
- 3. Who am I? • (a.k.a. ihower) • • & ( ) • Ruby on Rails (since 2006)
- 4.
- 5.
- 6.
- 7.
- 8.
- 9.
- 10. Software Desktop Mobile Web
- 11. Web application Ruby Java/.NET PHP Python Perl
- 12. My story about webdevelopment
- 13. 1990 Tim Berners-Lee World Wide Web
- 14. 1999 • • M$ FrontPage ( !) • CGI
- 15. 2003 • Perl CGI •
- 16. CGI, Perl HTML #!/usr/bin/perl open(FILE, "count.txt"); $num = <FILE>; $num++; close (FILE); open(WRITETO, ">count.txt"); print WRITETO "$num"; close (WRITETO); print <<PRINTAREA; content-type:text/htmlnn <style> <!-- body {background-color: black; line-height:1; margin-top: 0cm; margin-left: 0cm; margin-right: 0cm} --></style> <body><center> <b><font size=1 color=white> $num</font></b> PRINTAREA
- 17. 2002~2004 • Dreamweaver • PHP4 & MySQL
- 18. PHP HTML <?php $counter = intval(file_get_contents("counter.dat")) + 1; $fp = fopen("counter.dat", "w"); fwrite($fp, $counter); fclose($fp); ?> <p>Visitors: <?php echo @counter %></p>
- 19. PHP & MySQL <?php $db = mysql_connect("localhost", "root", "password"); mysql_query("SET NAMES 'utf8'"); mysql_select_db($SERVER['db']); ?> <html> <? $sql="select * from news where Class='1' or Class='3' order by CTDate desc limit 0,5"; $result= mysql_query($sql); while ( $arr=mysql_fetch_array($result) ) { echo <<<NEWSEND <div class="box"> <span class="box-title-1"> <b> $arr[Title] </b> $arr[CTDate] </span> <div class="box-content"> $arr[Text] </div> </div> NEWSEND; } ?> </html>
- 20. 2003 ( )
- 21.
- 22. 2005 • PHP web framework •
- 23. Web framework? • MVC •ORM • URL Template Session Ajax ......
- 24. MVC • Model Controller View • Model • • View • Ruby HTML • Controller Model • (e.g. ) Request Model View (e.g. HTML)
- 25. 1. Controller 2. 3. 4. View Model DB
- 26. MVC? • • (DRY: Don’t repeat yourself) •
- 27. ORM • Object-relational mapping • @posts = Post.find(:all, :order => "id desc", :limit => 5 ) @posts.each do |post| ... end
- 28. ORM? • SQL • ORM routine SQL • • SQL
- 29. 2006 • Ruby on Rails •
- 30. Rails? • ( MIT ) Web database-backed • MVC (Model-View-Control ) • ( ) Ruby Ajax ORM (object-relational-mapping) • 2004 David Heinemeier Hanson(DHH) 37signals
- 31. • Ruby • Don’t Repeat Yourself (DRY) • • Convention Over Configuration • • •
- 32. Ruby on Rails ? • ( ) • ( Joomla Durpal CMS •
- 33. Rails • 2005 DHH Hacker • 2006 Rails Jolt • 2005~2006 Ruby/Rails 1552% • Ruby Tiobe 26 11
- 34. Rails ? Java(Spring/Hibernate) Rails 4 20 4 ( 5 ) 3293 1164 1161 113 / 62/549 55/126 Justin Gehtland Java Rails
- 35. Rails ? • Justin Gehtland Java :Rails = 3.5 : 1 • Proc.net PHP : Rails = 10 : 1 • JavaEye JAVA : Rails = 10 : 1 • thegiive( Rails ) PHP : Rails = 8 : 1
- 36.
- 37. Rails ? M V C MVC Model-View-Control
- 38. Rails live demo Creatinga weblog in 15 minutes
- 39.
- 40.
- 41. Ruby? • (interpreted) • • • a.k.a. Matz • Lisp, Perl, Smalltalk • Happy
- 42. a trivial Rubyexample str = "May Ruby be with you!" 5.times { puts str }
- 43. the example tellsus: • (typing) • • (code block)
- 44. code lines matters 1.more code more bugs 2. more code needs IDE 3. more code needs more time to read
- 45. Fred Brooks’ law “programmergenerate about same amount of code per day regardless of the language”
- 46. • Web framework like Rails has • MVC • ORM • Ruby is • interpreted scripting language • dynamic typing language • object oriented programming
- 47. Rails Ruby http://ihower.tw/training
- 48.
- 49. If I werea college student...
- 50. 1. Learn more programminglanguage Scripting Language: Ruby, Python, JavaScript Functional Language: Erlang, Scala, Haskell, Clojure
- 51.
- 54. 3. Use Macor Ubuntu Windows Unix-like
- 57. 4. Learn Gitor Hg :
- 59.
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- 69.
- 70. • Ruby Tuesdaymeeting ( ) • RubyConf Taiwan (2010/4/25) • OSDC.TW (2010/4/24) • COSCUP (2010/8/14) • RubyKaigi (2010/8/27 )
- 71.