beyond frameworks
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stuart@stuartherbert.com - http://blog.stuartherbert.com/php/
Stuart Herbert
Beyond Frameworks
Using Frameworks WithoutBecoming A Hostage To Them
Stuart Herbert
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
About Stuart
• Head of Engineering, Gradwell.com
• Co-author, Zend Certification Study Guide for PHP 4
• Open-source Contributor Since 1994
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
About Stuart
• Head of Engineering, Gradwell.com
• Co-author, Zend Certification Study Guide for PHP 4
• Open-source Contributor Since 1994
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
About Stuart
• Head of Engineering, Gradwell.com
• Co-author, Zend Certification Study Guide for PHP 4
• Open-source Contributor Since 1994
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Contents
1
How Frameworks Have Held Us Hostage
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Contents
2
Our Layered Architecture For PHP Applications
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Contents
3What Makes A Good Component?
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Contents
4
How Components Are Helping Gradwell
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Questions
At The End, Please
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Questions
For The Audience ...
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/R33dr
Beyond Frameworks
Who Uses A Framework?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/qq6F1
Beyond Frameworks
Who Develops Software Products?
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
1: HostagesTo Frameworks
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Stop Me If You’ve Heard This One Before ...
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/7MmEiv
Beyond Frameworks
First generation apps are highly-coupled
Neat until you attempt to untangle them!
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/7MmEiv
Beyond Frameworks
First generation apps are highly-coupled
Neat until you attempt to untangle them!
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/4sK29V
Beyond Frameworks
Second generation app built on top of own framework
Developers enjoyed building it
But they hated completing it or maintaining it
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/4sK29V
Beyond Frameworks
Second generation app built on top of own framework
Developers enjoyed building it
But they hated completing it or maintaining it
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/4sK29V
Beyond Frameworks
Second generation app built on top of own framework
Developers enjoyed building it
But they hated completing it or maintaining it
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
So We Used A Popular Framework ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
... Or Two ...
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/2k87DM
Beyond Frameworks
Third generation app easy to extend
... after the steep learning curve
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/2k87DM
Beyond Frameworks
Third generation app easy to extend
... after the steep learning curve
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/7132Wm
Beyond Frameworks
We couldn’t get the code out to re-use in other apps
:(
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Framework
Your Code Plugins
What The Architecture Should Look Like
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Your Code Plugins
Framework
What Happened In Reality :(
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
What Practical Challenges Does This Create?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/5Z6Arf
Beyond Frameworks
How long would it take to upgrade your app to the next major version of the framework?
Would you do the upgrade, or stick with the current framework version?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/5Z6Arf
Beyond Frameworks
How long would it take to upgrade your app to the next major version of the framework?
Would you do the upgrade, or stick with the current framework version?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/4Z8oZE
Beyond Frameworks
What would it take to switch your app to a different framework?
Could you port your code, or would you be forced to rewrite all or most of it?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/4Z8oZE
Beyond Frameworks
What would it take to switch your app to a different framework?
Could you port your code, or would you be forced to rewrite all or most of it?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/85jzRA
Beyond Frameworks
How would you re-use some of your app’s code in a different app?
Especially if the other app doesn’t use the same framework?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/85jzRA
Beyond Frameworks
How would you re-use some of your app’s code in a different app?
Especially if the other app doesn’t use the same framework?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/6GMfQc
Beyond Frameworks
How would you outsource some of your app development to teams around the world?
How would you accept the work delivered back to you?
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/6GMfQc
Beyond Frameworks
How would you outsource some of your app development to teams around the world?
How would you accept the work delivered back to you?
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Your Code Plugins
Framework
We Need To Change This ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
To What ...?
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
2: Layered Approach
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks Your Code Plugins
Application
Let’s Take The Original Architecture ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks App Code Plugins
Application
... And Make The App As Thin As Possible
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic
App Code Plugins
Application
By Extracting Out ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model
App Code Plugins
Application
By Extracting Out ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Application
By Extracting Out ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Application
Components
... Into Independent Libraries Of Code
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Autoloader
Application
Components
Use An Autoloader To Pull In These New Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Autoloader
Application
Components
This Gives You A Larger Set Of Reusable Code
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
The Frameworked AppBecomes A Thin Layer
On Top Of Framework-agnostic
Reusable Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Layered Architecture
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Autoloader
Application
Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Layered ArchitectureApplication
Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Completely independent of the framework
• Built & tested in isolation of your app code
• Can be built by different teams
• Don’t have to change when the framework changes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Completely independent of the framework
• Built & tested in isolation of your app code
• Can be built by different teams
• Don’t have to change when the framework changes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Completely independent of the framework
• Built & tested in isolation of your app code
• Can be built by different teams
• Don’t have to change when the framework changes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Completely independent of the framework
• Built & tested in isolation of your app code
• Can be built by different teams
• Don’t have to change when the framework changes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Reduces the Big Ball of String Syndrome
• Mindset change to light apps on top of rich service layer
• Improves development in parallel of apps & services
• Injects additional discipline into development teams
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Reduces the Big Ball of String Syndrome
• Mindset change to light apps on top of rich service layer
• Improves development in parallel of apps & services
• Injects additional discipline into development teams
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Reduces the Big Ball of String Syndrome
• Mindset change to light apps on top of rich service layer
• Improves development in parallel of apps & services
• Injects additional discipline into development teams
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why Components?
Business Logic
Data Model
Utilities
• Reduces the Big Ball of String Syndrome
• Mindset change to light apps on top of rich service layer
• Improves development in parallel of apps & services
• Injects additional discipline into development teams
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Others Already Do This
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/5oewwy
Beyond Frameworks
Perl Has CPAN Modules
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/uyMuU
Beyond Frameworks
Ruby Has Gems
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
What MakesA Good Component?
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
3: Good Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Component Standards
• Common standards
• Reusable by many
• Interoperable
• Trustable
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Component Standards
• Common standards
• Reusable by many
• Interoperable
• Trustable
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Component Standards
• Common standards
• Reusable by many
• Interoperable
• Trustable
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Component Standards
• Common standards
• Reusable by many
• Interoperable
• Trustable
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Application
Components
Keep Components Outside Of Your App
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Autoloader
Application
Components
Use An Autoloader To Pull In Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Autoloader
Application
Components
Why Use An Autoloader?
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Frameworks
Business Logic Data Model Utilities
App Code Plugins
Autoloader
Application
Components
Autoloading Makes Life Easy!
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Who has heard of PSR0?
• http://groups.google.com/group/php-standards/web/psr-0-final-proposal
• Backed by leading names in the community
• Perfect for a component approach
One True Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Who has heard of PSR0?
• http://groups.google.com/group/php-standards/web/psr-0-final-proposal
• Backed by leading names in the community
• Perfect for a component approach
One True Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Who has heard of PSR0?
• http://groups.google.com/group/php-standards/web/psr-0-final-proposal
• Backed by leading names in the community
• Perfect for a component approach
One True Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Who has heard of PSR0?
• http://groups.google.com/group/php-standards/web/psr-0-final-proposal
• Backed by leading names in the community
• Perfect for a component approach
One True Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Namespace separators ‘\’ become DIRECTORY_SEPARATOR
• Underscore in class names ‘_’ become DIRECTORY_SEPARATOR
• Top namespace is your organisation
• Achieves 1:1 mapping from classname to filename on disk
PSR0 Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Namespace separators ‘\’ become DIRECTORY_SEPARATOR
• Underscore in class names ‘_’ become DIRECTORY_SEPARATOR
• Top namespace is your organisation
• Achieves 1:1 mapping from classname to filename on disk
PSR0 Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Namespace separators ‘\’ become DIRECTORY_SEPARATOR
• Underscore in class names ‘_’ become DIRECTORY_SEPARATOR
• Top namespace is your organisation
• Achieves 1:1 mapping from classname to filename on disk
PSR0 Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Namespace separators ‘\’ become DIRECTORY_SEPARATOR
• Underscore in class names ‘_’ become DIRECTORY_SEPARATOR
• Top namespace is your organisation
• Achieves 1:1 mapping from classname to filename on disk
PSR0 Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Autoloader Examples
• Phin_Project\ExtenderLib\FileLoader ->Phin_Project/ExtenderLib/FileLoader.php
• Phin_Project\Console\Std_Out ->Phin_Project/Console/Std/Out.php
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Autoloader Examples
• Phin_Project\ExtenderLib\FileLoader ->Phin_Project/ExtenderLib/FileLoader.php
• Phin_Project\Console\Std_Out ->Phin_Project/Console/Std/Out.php
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Autoloader Component
• pear channel-discover pear.gradwell.com
• pear install Gradwell/Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Autoloader Component
• pear channel-discover pear.gradwell.com
• pear install Gradwell/Autoloader
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/3c2W8q
Beyond Frameworks
Testing
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PHPUnit
• De-facto standard for unit-testing PHP code
• Supported by leading IDEs
• Supported by CI environments
• Perfect for use with components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PHPUnit
• De-facto standard for unit-testing PHP code
• Supported by leading IDEs
• Supported by CI environments
• Perfect for use with components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PHPUnit
• De-facto standard for unit-testing PHP code
• Supported by leading IDEs
• Supported by CI environments
• Perfect for use with components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PHPUnit
• De-facto standard for unit-testing PHP code
• Supported by leading IDEs
• Supported by CI environments
• Perfect for use with components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Tests ...
• Document supported behaviour
• Have separate tests for reported bugs
• Cover 100% of the component’s code
• Ship with the component
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Tests ...
• Document supported behaviour
• Have separate tests for reported bugs
• Cover 100% of the component’s code
• Ship with the component
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Tests ...
• Document supported behaviour
• Have separate tests for reported bugs
• Cover 100% of the component’s code
• Ship with the component
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Tests ...
• Document supported behaviour
• Have separate tests for reported bugs
• Cover 100% of the component’s code
• Ship with the component
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Getting PHPUnit
• Visit www.phpunit.de
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/6wuB99
Beyond Frameworks
Documentation
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
The PHP ManualIs One Of
PHP’s Killer Features
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Make Your Documentation At Least As Good!
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Explain how to load the component
• Describe how you intend it to be used
• Give several (non-trivial!) examples
• Capture notes / FAQs
Good Documentation
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Explain how to load the component
• Describe how you intend it to be used
• Give several (non-trivial!) examples
• Capture notes / FAQs
Good Documentation
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Explain how to load the component
• Describe how you intend it to be used
• Give several (non-trivial!) examples
• Capture notes / FAQs
Good Documentation
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Explain how to load the component
• Describe how you intend it to be used
• Give several (non-trivial!) examples
• Capture notes / FAQs
Good Documentation
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Write It Down ...
• ... so you don’t have to remember
• ... so you don’t have to keep explaining it to others
• ... so you don’t have to read the source
• ... so that others are more likely to reuse your efforts
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Write It Down ...
• ... so you don’t have to remember
• ... so you don’t have to keep explaining it to others
• ... so you don’t have to read the source
• ... so that others are more likely to reuse your efforts
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Write It Down ...
• ... so you don’t have to remember
• ... so you don’t have to keep explaining it to others
• ... so you don’t have to read the source
• ... so that others are more likely to reuse your efforts
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Write It Down ...
• ... so you don’t have to remember
• ... so you don’t have to keep explaining it to others
• ... so you don’t have to read the source
• ... so that others are more likely to reuse your efforts
Stuart Herbert - http://blog.stuartherbert.com/php/
www.phpunit.de/manual/3.5/en/
Beyond Frameworks
Docbook a la PHPUnit
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
What About phpDoc?
• Useful for IDE code auto-completion
• Useful as a summary of a method’s purpose
• Reference documentation, not a manual
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
What About phpDoc?
• Useful for IDE code auto-completion
• Useful as a summary of a method’s purpose
• Reference documentation, not a manual
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
What About phpDoc?
• Useful for IDE code auto-completion
• Useful as a summary of a method’s purpose
• Reference documentation, not a manual
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/41vMUJ
Beyond Frameworks
Packaging & Installation
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PEAR Installer
• Love it or hate it, PEAR package format is a community-created solution
• PEAR installer found on most computers
• Supports installing both system-wide and into a sandbox
• Simple to publish your own package repo
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PEAR Installer
• Love it or hate it, PEAR package format is a community-created solution
• PEAR installer found on most computers
• Supports installing both system-wide and into a sandbox
• Simple to publish your own package repo
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PEAR Installer
• Love it or hate it, PEAR package format is a community-created solution
• PEAR installer found on most computers
• Supports installing both system-wide and into a sandbox
• Simple to publish your own package repo
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
PEAR Installer
• Love it or hate it, PEAR package format is a community-created solution
• PEAR installer found on most computers
• Supports installing both system-wide and into a sandbox
• Simple to publish your own package repo
Stuart Herbert - http://blog.stuartherbert.com/php/
http://www.pirum-project.org/
Beyond Frameworks
Pirum
Stuart Herbert - http://blog.stuartherbert.com/php/
pear channel-discover pear.gradwell.com
Beyond Frameworks
Your Own PEAR Channel
Stuart Herbert - http://blog.stuartherbert.com/php/
github.com/Gradwell/phix
Beyond Frameworks
Phix For Making Components
Stuart Herbert - http://blog.stuartherbert.com/php/
http://flic.kr/p/5aK8jA
Beyond Frameworks
Backwards Compatible
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why It Matters
• Isolating code into components reduces amount of code that is affected by change
• Backwards-compatibility breaks immediately negate that advantage
• The more apps use a component, the worse the b/c breakage cost scales
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why It Matters
• Isolating code into components reduces amount of code that is affected by change
• Backwards-compatibility breaks immediately negate that advantage
• The more apps use a component, the worse the b/c breakage cost scales
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Why It Matters
• Isolating code into components reduces amount of code that is affected by change
• Backwards-compatibility breaks immediately negate that advantage
• The more apps use a component, the worse the b/c breakage cost scales
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Transparent Versions
• X.Y.Z scheme
• X == Major version / API / ABI version
• Y == Minor new features
• Z == Bug fixes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Transparent Versions
• X.Y.Z scheme
• X == Major version / API / ABI version
• Y == Minor new features
• Z == Bug fixes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Transparent Versions
• X.Y.Z scheme
• X == Major version / API / ABI version
• Y == Minor new features
• Z == Bug fixes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Transparent Versions
• X.Y.Z scheme
• X == Major version / API / ABI version
• Y == Minor new features
• Z == Bug fixes
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
You Can Break B/C
• Just don’t do it by surprise!
• Don’t be afraid to increment X in X.Y.Z
• Google Chrome is already on 10.y.z ...
• ... and it hasn’t done it any harm
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
You Can Break B/C
• Just don’t do it by surprise!
• Don’t be afraid to increment X in X.Y.Z
• Google Chrome is already on 10.y.z ...
• ... and it hasn’t done it any harm
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
You Can Break B/C
• Just don’t do it by surprise!
• Don’t be afraid to increment X in X.Y.Z
• Google Chrome is already on 10.y.z ...
• ... and it hasn’t done it any harm
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
You Can Break B/C
• Just don’t do it by surprise!
• Don’t be afraid to increment X in X.Y.Z
• Google Chrome is already on 10.y.z ...
• ... and it hasn’t done it any harm
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
To Recap ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Good Components ...
• Autoload
• Are well tested
• Are well documented
• Are easy to install
• Don’t break backwards compatibility by surprise
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
... If They ...
• PSR0 - compliant autoloading
• PHPUnit tests
• Docbook manual
• Packages installed via PEAR installer
• Transparent version numbers
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
... If They ...
• PSR0 - compliant autoloading
• PHPUnit tests
• Docbook manual
• Packages installed via PEAR installer
• Transparent version numbers
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
... If They ...
• PSR0 - compliant autoloading
• PHPUnit tests
• Docbook manual
• Packages installed via PEAR installer
• Transparent version numbers
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
... If They ...
• PSR0 - compliant autoloading
• PHPUnit tests
• Docbook manual
• Packages installed via PEAR installer
• Transparent version numbers
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
... If They ...
• PSR0 - compliant autoloading
• PHPUnit tests
• Docbook manual
• Packages installed via PEAR installer
• Transparent version numbers
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
4: An Example
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
We Sell Broadband Via Our Sales Website ...
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
And Our Customer Control Panel
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
iFrame
The Control Panel Holds The Code HostageThe Sales Site Relies On An iFrame
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
... And The Control Panel TalksTo The Third Party Who Provides Our Broadband
SOAPiFrame
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
We Wanted To Sell Exciting New Broadband ProductsFrom An Alternative Third Party As Well
SOAPiFrame
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
Changing The Control PanelWas Going To Be Expensive ...
SOAPiFrame
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
... But Was The Only WayTo Change The Sales Website
SOAPiFrame
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
Problem Is ...We Are Due To Retire This Control Panel
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
We Separated Out The Business LogicOf The Availability Checker
SOAP
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
Sales Can Now Improve Their WebsiteWithout Having To Rely On Control Panel’s Roadmap
SOAP
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
Allowing Engineering To RetireThis Version Of The Control Panel
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
Sales Pitch
Sales Website
Product Specs
AvailabilityChecker
Customer Account
Control Panel 2
Invoicing
AvailabilityChecker
Provisioning
Third Party
Faults
AvailabilityChecker
And The New Control PanelWill Simply Re-use The Component Before Launch
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Our customer profile has changed
• We have outgrown our old applications
• We are refactoring all of the needed logic from our old applications
• Allows Sales and Engineering roadmaps to move without major log jams
• Allows more features (especially internal ones)to be shared across more of our apps
Moving To Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Our customer profile has changed
• We have outgrown our old applications
• We are refactoring all of the needed logic from our old applications
• Allows Sales and Engineering roadmaps to move without major log jams
• Allows more features (especially internal ones)to be shared across more of our apps
Moving To Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Our customer profile has changed
• We have outgrown our old applications
• We are refactoring all of the needed logic from our old applications
• Allows Sales and Engineering roadmaps to move without major log jams
• Allows more features (especially internal ones)to be shared across more of our apps
Moving To Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Our customer profile has changed
• We have outgrown our old applications
• We are refactoring all of the needed logic from our old applications
• Allows Sales and Engineering roadmaps to move without major log jams
• Allows more features (especially internal ones)to be shared across more of our apps
Moving To Components
Stuart Herbert - http://blog.stuartherbert.com/php/Beyond Frameworks
• Our customer profile has changed
• We have outgrown our old applications
• We are refactoring all of the needed logic from our old applications
• Allows Sales and Engineering roadmaps to move without major log jams
• Allows more features (especially internal ones)to be shared across more of our apps
Moving To Components
stuart@stuartherbert.com - http://blog.stuartherbert.com/php/
Stuart Herbert
Thanks For Your Time
Feedback welcome!
I’d love to hear your stories
stuart@stuartherbert.com - http://blog.stuartherbert.com/php/
Stuart Herbert
This photo: http://flic.kr/p/3PU451
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