php/archived-presentations
1
0
Fork 0
mirror of https://github.com/php/presentations.git synced 2026-03-23 23:22:22 +01:00
Code Issues Packages Projects Releases Wiki Activity

- Added my design talk.

Browse Source
This commit is contained in:
Derick Rethans
2010-06-11 13:13:59 +00:00
parent 2631e478f2
commit 0a659b57a8
27 changed files with 486 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
design-dpc10.xml Normal file
View File

@@ -0,0 +1,65 @@
<?xml version="1.0" encoding="utf-8"?>
<presentation
template="css"
navmode="html"
navbarbackground="#4373b4"
navbartopiclinks="0"
navColor="#f1fbff"
logo1=""
stylesheet="presentations/slides/ezc/ez.css"
backgroundfixed="1" >
<topic>PHP</topic>
<title>Designing for Reusability</title>
<event>Dutch PHP Conference</event>
<location>Amsterdam, Netherlands</location>
<date>June 11th, 2008</date>
<speaker>Derick Rethans</speaker>
<email>derick@derickrethans.nl</email>
<twitter>derickr</twitter>
<url>http://derickrethans.nl/talks.php</url>
<joindin>http://joind.in/1534</joindin>
<slide>slides/dbus/title.xml</slide>
<slide>slides/toolbox/me.xml</slide>
<!-- INTRODUCTION -->
<!-- THE SATELLITE VIEW -->
- configuration objects
- dependency injection
- overabstraction
<slide>slides/design/components.xml</slide>
<slide>slides/design/dependency-example-wrong1.xml</slide>
<slide>slides/design/dependency-hell.xml</slide>
<slide>slides/design/dependency-example-wrong2.xml</slide>
<slide>slides/design/dependency-example-better1.xml</slide>
<slide>slides/design/hammer.xml</slide>
<slide>slides/design/factory.xml</slide>
<slide>slides/design/hammer-factory.xml</slide>
<slide>slides/design/factory-service.xml</slide>
<slide>slides/design/hammer-factory-design.xml</slide>
<slide>slides/toolbox/dependencies.xml</slide>
<!-- CLASSES THEMSELF -->
<slide>slides/design/break-up.xml</slide>
<slide>slides/design/split-out.xml</slide>
<slide>slides/design/ppp.xml</slide>
<slide>slides/design/active-record.xml</slide>
<slide>slides/design/refactor.xml</slide>
<slide>slides/design/refactor2.xml</slide>
<!-- REUSEABILITY == TESTABILITY -->
<slide>slides/design/testability.xml</slide>
<slide>slides/tdd/unit-test-issues.xml</slide>
<slide>slides/design/mocking.xml</slide>
<slide>slides/design/mvc.xml</slide>
<slide>slides/internals/questions.xml</slide>
<slide>slides/dbus/end.xml</slide>
- mvc
- different input streams
- different renders
- different output
</presentation>

32
slides/design/active-record.xml Normal file
View File

@@ -0,0 +1,32 @@
<slide>
<title>ORM/ActiveRecord</title>
<list>
<bullet>Is a mechanism for mapping objects to a database</bullet>
<bullet>Makes classes inherit from "ActiveRecord"</bullet>
<bullet>Hibernate is alternative</bullet>
<bullet>Traits</bullet>
</list>
<div effect="fade-in">
<example><![CDATA[<?php
trait ActiveRecord
{
public function load()
{
var_dump(get_class($this));
}
}
class Car {
use ActiveRecord;
}
$c = new Car;
$c->load();
?>]]></example>
</div>
<div effect="fade-in">
<example class="result"><![CDATA[string(3) "Car"]]></example>
</div>
</slide>

47
slides/design/break-up.xml Normal file
View File

@@ -0,0 +1,47 @@
<slide>
<title>Implementations</title>
<div effect="fade-out">
<example><![CDATA[public function createRequest()
{
$this->request = new ezcMvcRequest();
$this->processStandardHeaders();
$this->processAcceptHeaders();
$this->processUserAgentHeaders();
$this->processFiles();
$this->processAuthVars();
$this->processCookies();
$this->request->raw = &$_SERVER;
return $this->request;
}]]></example>
</div>
<div effect="fade-in">
<example><![CDATA[public function createRequest()
{
$this->request = $this->createRequestObject();
$this->processStandardHeaders();
$this->processAcceptHeaders();
$this->processUserAgentHeaders();
$this->processFiles();
$this->processAuthVars();
$this->processCookies();
$this->request->raw = &$_SERVER;
return $this->request;
}
/**
* Creates and returns an ezcMvcRequest object.
*
* @return ezcMvcRequest
*/
protected function createRequestObject()
{
return new ezcMvcRequest();
}]]></example>
</div>
</slide>

5
slides/design/components.xml Normal file
View File

@@ -0,0 +1,5 @@
<slide>
<title>Application Components</title>
<blurb class="center-page">Any larger application will consist of multiple components</blurb>
</slide>

BIN
slides/design/dep-hell.png Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 175 KiB

51
slides/design/dependency-example-better1.xml Normal file
View File

@@ -0,0 +1,51 @@
<slide>
<title>Manual Injection</title>
<div effect="fade-out">
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct( Config $configObj )
{
$this->lineLength = $configObj->getLineLength();
}
}
$configObj = new Config();
$wrap = new Wrappy( $configObj );
?>]]></example>
</div>
<div effect="fade-in-out">
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct( Config $configObj = null )
{
$this->lineLength = $configObj ? $configObj->getLineLength() : 78;
}
}
$wrap = new Wrappy();
?>]]></example>
</div>
<div effect="fade-in">
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct( ConfigInterface $configObj = null )
{
$this->lineLength = $configObj ? $configObj->getLineLength() : 78;
}
}
$wrap = new Wrappy();
?>]]></example>
</div>
</slide>

34
slides/design/dependency-example-wrong.xml Normal file
View File

@@ -0,0 +1,34 @@
<slide>
<title>Dependencies Example</title>
<div effect="fade-out">
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct()
{
$configObj = Config::get();
$this->lineLength = $configObj->getLineLength();
}
}
?>]]></example>
<blurb class="center-page">The Singleton Disaster</blurb>
</div>
<div effect="fade-in">
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct()
{
global $configObj;
$this->lineLength = $configObj->getLineLength();
}
}
?>]]></example>
<blurb class="center-page">The Globals Catastrophe</blurb>
</div>
</slide>

17
slides/design/dependency-example-wrong1.xml Normal file
View File

@@ -0,0 +1,17 @@
<slide>
<title>Hard Dependency</title>
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct()
{
$configObj = new Config();
$this->lineLength = $configObj->getLineLength();
}
}
?>]]></example>
<blurb class="center-page">Hard Dependency</blurb>
</slide>

34
slides/design/dependency-example-wrong2.xml Normal file
View File

@@ -0,0 +1,34 @@
<slide>
<title>Bad Dependencies</title>
<div effect="fade-out">
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct()
{
$configObj = Config::get();
$this->lineLength = $configObj->getLineLength();
}
}
?>]]></example>
<blurb class="center-page">The Singleton Disaster</blurb>
</div>
<div effect="fade-in">
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct()
{
global $configObj;
$this->lineLength = $configObj->getLineLength();
}
}
?>]]></example>
<blurb class="center-page">The Globals Catastrophe</blurb>
</div>
</slide>

5
slides/design/dependency-hell.xml Normal file
View File

@@ -0,0 +1,5 @@
<slide>
<title>Spaghetti</title>
<image filename="dep-hell.png"/>
</slide>

26
slides/design/factory-service.xml Normal file
View File

@@ -0,0 +1,26 @@
<slide>
<title>Service</title>
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct( Config $configObj )
{
$this->lineLength = $configObj->getLineLength();
}
}
/*
<service>
<wrappy>
<config>
...
</wrappy>
</service>
*/
$wrappy = ServiceDepmanager::createWrappy();
?>]]></example>
</slide>

24
slides/design/factory.xml Normal file
View File

@@ -0,0 +1,24 @@
<slide>
<title>Factory</title>
<example><![CDATA[<?php
class Wrappy
{
private $lineLength;
function __construct( Config $configObj )
{
$this->lineLength = $configObj->getLineLength();
}
}
class TextManipulationFactory
{
function getWrappy()
{
$config = new Config();
return new Wrappy($config);
}
}
?>]]></example>
</slide>

BIN
slides/design/hammer-factory-design.jpg Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 116 KiB

7
slides/design/hammer-factory-design.xml Normal file
View File

@@ -0,0 +1,7 @@
<slide>
<title>Hammer Factory Plans</title>
<image filename="hammer-factory-design.jpg" pdf-scale="0.7"/>
<blurb>"Why I Hate Frameworks"</blurb>
<blurb><link href="http://discuss.joelonsoftware.com/default.asp?joel.3.219431.12"/></blurb>
</slide>

BIN
slides/design/hammer-factory.jpg Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 17 KiB

4
slides/design/hammer-factory.xml Normal file
View File

@@ -0,0 +1,4 @@
<slide>
<title>Factory</title>
<image filename="hammer-factory.jpg" pdf-scale="0.7"/>
</slide>

BIN
slides/design/hammer.jpg Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 21 KiB

5
slides/design/hammer.xml Normal file
View File

@@ -0,0 +1,5 @@
<slide>
<title>Building stuff</title>
<image filename="hammer.jpg"/>
</slide>

5
slides/design/mocking.xml Normal file
View File

@@ -0,0 +1,5 @@
<slide>
<title>Mocking</title>
<blurb class="center-page">Hiding an implementation by a fake implementation</blurb>
</slide>

26
slides/design/mvc.xml Normal file
View File

@@ -0,0 +1,26 @@
<slide>
<title>MVC/Testing</title>
<list>
<bullet>MVC generally uses HTTP</bullet>
<bullet>Is that necessary?</bullet>
<bullet>How do we test that?</bullet>
</list>
<div effect="fade-in">
<example><![CDATA[<?php
interface ezcMvcDispatcherConfiguration
{
public function createRequestParser();
public function createRouter( ezcMvcRequest $request );
public function createView( ezcMvcRoutingInformation $routeInfo, ezcMvcRequest $request, ezcMvcResult $result );
public function createResponseWriter( ezcMvcRoutingInformation $routeInfo, ezcMvcRequest $request, ezcMvcResult $result, ezcMvcResponse $response );
public function createFatalRedirectRequest( ezcMvcRequest $request, ezcMvcResult $result, Exception $e );
public function runPreRoutingFilters( ezcMvcRequest $request );
public function runRequestFilters( ezcMvcRoutingInformation $routeInfo, ezcMvcRequest $request );
public function runResultFilters( ezcMvcRoutingInformation $routeInfo, ezcMvcRequest $request, ezcMvcResult $result );
public function runResponseFilters( ezcMvcRoutingInformation $routeInfo, ezcMvcRequest $request, ezcMvcResult $result, ezcMvcResponse $response );
}
?>]]></example>
</div>
</slide>

9
slides/design/ppp.xml Normal file
View File

@@ -0,0 +1,9 @@
<slide>
<title>Visibility</title>
<list>
<bullet>public</bullet>
<bullet>protected</bullet>
<bullet>private</bullet>
</list>
</slide>

10
slides/design/refactor.xml Normal file
View File

@@ -0,0 +1,10 @@
<slide>
<title>Refactoring</title>
<break lines="4"/>
<blurb class="quote">*Code refactoring* is the process of changing a computer
program's source code without modifying its external functional behavior in
order to improve some of the nonfunctional attributes of the software.
Advantages include improved code readability and reduced complexity to
improve the maintainability of the source code, as well as a more
expressive internal architecture or object model *to improve extensibility*. (Wikipedia)</blurb>
</slide>

10
slides/design/refactor2.xml Normal file
View File

@@ -0,0 +1,10 @@
<slide>
<title>Refactoring</title>
<list>
<bullet>Readability</bullet>
<bullet>Maintainability</bullet>
<bullet>Extensibility</bullet>
<bullet>Testability</bullet>
</list>
</slide>

59
slides/design/split-out.xml Normal file
View File

@@ -0,0 +1,59 @@
<slide>
<title>Implementations</title>
<div effect="fade-out">
<example><![CDATA[
$text .= "<ul{$idPart}>\n";
foreach ( $children as $child )
{
$path = $child[2]->nodes;
if ( !$this->options->displayRootNode )
{
array_shift( $path );
}
if ( $this->options->selectedNodeLink )
{
$slice = array_slice( $path, -1 );
$path = htmlspecialchars( $this->options->basePath . '/' . array_pop( $slice ) );
}
else
{
$path = htmlspecialchars( $this->options->basePath . '/' . join( '/', $path ) );
}
$text .= str_repeat( ' ', $level + 2 );
$data = $this->formatData( $child[1], in_array( $child[0], $this->options->highlightNodeIds ) );]]></example>
</div>
<div effect="fade-in">
<example><![CDATA[
foreach ( $children as $child )
{
$text .= str_repeat( ' ', $level + 2 );
$path = $this->formatPath( $child );
$data = $this->formatData( $child[1], in_array( $child[0], $this->options->highlightNodeIds ) );
]]></example>
<example><![CDATA[
protected function formatPath( $child )
{
$path = $child[2]->nodes;
if ( !$this->options->displayRootNode )
{
array_shift( $path );
}
if ( $this->options->selectedNodeLink )
{
$slice = array_slice( $path, -1 );
$path = htmlspecialchars( $this->options->basePath . '/' . array_pop( $slice ) );
}
else
{
$path = htmlspecialchars( $this->options->basePath . '/' . join( '/', $path ) );
}
return $path;
}
]]></example>
</div>
</slide>

9
slides/design/testability.xml Normal file
View File

@@ -0,0 +1,9 @@
<slide>
<title>Testability</title>
<list>
<bullet>Test driven development</bullet>
<bullet>Code is written in small blocks</bullet>
<bullet>Makes the API better</bullet>
</list>
</slide>

2
slides/internals/questions.xml
View File

@@ -2,5 +2,5 @@
<slide fontsize="6em">
<title>Questions</title>
<blurb class="q_mark" align="center" marginleft="0" marginright="0" fontsize="16em">?</blurb>
<blurb class="q_mark center-page" align="center" marginleft="0" marginright="0" fontsize="16em">?</blurb>
</slide>

1
slides/toolbox/me.xml
View File

@@ -10,6 +10,7 @@
<bullet>PHP development</bullet>
<bullet>Author of the mcrypt, input_filter, dbus, translit and date/time extensions</bullet>
<bullet>Author of Xdebug</bullet>
<bullet>Contributor to the Apache Zeta Components Incubator project (formerly eZ Components)</bullet>
<bullet>Freelancer doing PHP (internals) development</bullet>
</list>