Twig Templating

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  • 1. Twig Templating John Rudolph Bautista Software Engineer The Twig logo is © Sensio Labs October 26th 2013
  • 2. PHP AS TEMPLATE
  • 3. Why TWIG WAS born?
  • 4. WAYBACK 2009
  • 5. FABIEN potencier - Symfony - SwiftMailer - Silex - Pimple - Twig …. many more https://github.com/fabpot
  • 6. TWIG The Twig logo is © Sensio Labs
  • 7. Twig - Provides Pattern Consistency - Solves Complex Control Flow - Template Inheritance & Macros - Fully Extendable
  • 8. Twig - Well Documented - Unit Tested - Secure - Fast (has a caching layer by default)
  • 9. Syntax Highlighting
  • 10. Installation
  • 11. VIa Composer
  • 12. VIA Composer http://getcomposer.org/
  • 13. VIA TARBALL OR ZIP https://github.com/fabpot/Twig/tags - Unpack - Move files to your project folder
  • 14. VIA GIT https://github.com/fabpot/Twig/tags git clone git://github.com/fabpot/Twig.git
  • 15. USING TWIG API
  • 16. Delimiters {{ ... }} - displays something {% ... %} - evaluates an expression (loops, tags, cond.) {# ... #} - comments code blocks
  • 17. Twig Template FILE
  • 18. Twig Template FILE ← Comment
  • 19. Twig Template FILE ← FILTER
  • 20. Twig Template FILE ← TAG
  • 21. Twig Template FILE ← VARIABLE
  • 22. Twig Template FILE ← FILTER WITH ARGUments
  • 23. THE BASICS
  • 24. LITERALS String = “Manong Johny” Integer = 100000000 Float = 100000000.00 Array = [“pdaf”, “dap”] Hash = {“key” : “value”} Boolean = true/false Null = null
  • 25. SETTING VARIABLES {% set str = 'value' %} {% set arr = [1, 2, 3] %} {% set hash = {'a' : 1, 'b': 2 } %} {% set combine = ['a' : { 'b': 2 }] %}
  • 26. PRINTING VARIABLES {{ var }} {{ var['elem'] }} {{ var.elem }} {{ var.prop }}
  • 27. FILTERS - Modifies a variable - Uses “|” (pipe) - Chainable - Can accept arguments
  • 28. FILTERS {{ employee|title }} Result : “Janet Napoles” {{ tags|join(', ') }} Result : “ph, rich, more fun”
  • 29. MACROS - acts like functions in regular programming language - default argument values are defined by using the default() filter - arguments are always optional
  • 30. MACROS
  • 31. ESCAPING - escapes a string for safe insertion into the final output {{ var|escape }} {{ var|e }} {% autoescape %} …. {% endautoescape %}
  • 32. ESCAPING Default Escape : {{ str|escape }} <p>Hello World!</p> JS Escape : {{ str|escape('js ') }} x3Cpx3EHellox20Worldx21x3Cx2Fpx3E CSS Escape : {{ str|escape('css ') }} 3C p3E Hello20 World21 3C 2F p3E URL Escape: {{ str|escape('url') }} %3Cp%3EHello%20World%21%3C%2Fp%3E
  • 33. IF, ELSEIF, ELSE
  • 34. FOR LOOP - loop each item in a sequence
  • 35. FOR LOOP
  • 36. FOR WITH CONDITION
  • 37. FOR LOOP VARIABLES
  • 38. TEMPLATE INHERITANCE
  • 39. BLOCK - are used for inheritance and act as placeholders and replacements. {% block content %} ….. {% endblock %}
  • 40. NAMED BLOCK END-TAGS
  • 41. EXTENDS - can be used to extend a template from another one. {% extends “layout.twig” %}
  • 42. EXTENDS & BLOCK
  • 43. EXTENDS & BLOCK
  • 44. EXTENDS & BLOCK {% block content %} {% endblock content %}
  • 45. INCLUDE - includes a template and return the rendered content of that file into the current namespace.
  • 46. INCLUDE
  • 47. INCLUDE
  • 48. DRUPAL + TWIG Drupal 8 & Twig Road Map : http://lb.cm/twig
  • 49. <THANK YOU!