Ajax in Django

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Art(h)ur discusses Ajax and its use in web development frameworks like Django. While Ajax is widely adopted, concerns about its implementation include file size, performance, generated markup, accessibility, and SEO. Django is praised for not shipping with a single Ajax library, allowing developers flexibility, though this is sometimes cited as a weakness. Loose coupling, hooks, and a library-agnostic approach can help address issues with Ajax implementations.

Tecnología

So who's this dude?

Art(h)ur
Working at Tesco Diets
Taming the unruly browsers
(more often the other way round)

Clearly the most over
hyped cleaning liquid ever

'Django often gets marked down
in a "framework comparisons"
due to the lack of built in Ajax
support. Personally I think that
not shipping with a single
library is a feature, not a bug.'
Simon Willison

Concerns:
Multiple scripts
Filesize
Performance
Generated Markup
Accessbility
SEO
Tied to specific library
Extension of builtin types

Concerns:
Generated Markup
Accessbility
SEO
Tied to specific library
Extension of builtin types

If you have two separate
versions, this approach
may make sense

Chances are, you're not
building GMail though

http://leandrovieira.com/projects/jquery/lightbox/

Artur, this is all great,
but Ruby meet up is next
month

Providing configuration
data on page load

Image Credits

http://www.flickr.com/photos/atauri/2358057325/
http://www.flickr.com/photos/jeffmcneill/4169128852/
http://www.flickr.com/photos/seandreilinger/3650862305/
http://www.flickr.com/photos/lrargerich/2800244229/
http://www.flickr.com/photos/mager/2803365394/
http://www.flickr.com/photos/joyoflife/317125573/
http://www.flickr.com/photos/young_einstein/74097753/
http://www.flickr.com/photos/drewm/4749504388/

Questions?
http://www.slideshare.net/cistov
http://www.twitter.com/cistov

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Ajax in Django

2. So who's this dude? Art(h)ur Working at Tesco Diets Taming the unruly browsers (more often the other way round)

3. http://slideshare.net/cistov

4. Not a 'howto' talk

5. So, Ajax...

6. Clearly the most over hyped cleaning liquid ever

7. Say Ajax again!

8. Widely adopted

10. Ajax in broad sense

11.

12. DRY

13.

14. Django Goals

15. 1.Make web development stupidly fast

16. 2. Automate the repetitive stuff

17. 3. Practice loose coupling

18. 4. Follow best practices

19. 5. Be efficient

20. Pinax as 'Django with bigger opinion'

21. But...

22. 'Django often gets marked down in a "framework comparisons" due to the lack of built in Ajax support. Personally I think that not shipping with a single library is a feature, not a bug.' Simon Willison

23.

24. Giants & their shoulders

25. Fred

26. Exhibit A: ASP.NET UpdatePanel

27. Concerns: Multiple scripts Filesize Performance Generated Markup Accessbility SEO Tied to specific library Extension of builtin types

28. Exhibit B: Rails helpers

29. Concerns: Generated Markup Accessbility SEO Tied to specific library Extension of builtin types

30. Exhibit C: Cappucino/GWT

31.

32.

33.

34. Concerns: Accessbility SEO

35. If you have two separate versions, this approach may make sense

36.

37.

38. Chances are, you're not building GMail though

39.

40.

41. http://leandrovieira.com/projects/jquery/lightbox/

42. Should I even be bothered?

43. iPhone supports JavaScript

44. Ok, slow JavaScript, but still?

45.

46.

47. ¿Habla HTML?

48.

49.

50. <rant>

51.

52.

53.

54.

55.

56. </rant>

57.

58. “Just as easy as not to”

59. 3

60.

61. Hooks

62. Clean HTML

63. Libraryagnostic

64. Loose coupling

65. Drivers

66. Caching

67. Even backend agnostic

68. Artur, this is all great, but Ruby meet up is next month

69. Meet 40 lines of messy code

70.

71.

72.

73.

74.

75. HttpRequest.is_ajax() is your friend

76.

77.

78.

79.

80.

81.

82.

83.

84. Poor man's singlepaged applications

85.

86.

87.

88. Dependencies

89.

90.

91.

92.

93. Providing configuration data on page load

94. CSS classes?

95. Custom attributes?

96. data* hell?

97. Inline objects?

98.

99. Unit Testing

100. Extending functionality

101. Callbacks?

102. Custom events?

103. Inheritance?

104. Data Access?

105.

106. XSS/XSRF & JSON APIs

107.

108.

109.

110.

111.

112.

113.

114.

115.

116. GWT Query

117.

118.

119.

120.

121. Future?

122. Image Credits http://www.flickr.com/photos/atauri/2358057325/ http://www.flickr.com/photos/jeffmcneill/4169128852/ http://www.flickr.com/photos/seandreilinger/3650862305/ http://www.flickr.com/photos/lrargerich/2800244229/ http://www.flickr.com/photos/mager/2803365394/ http://www.flickr.com/photos/joyoflife/317125573/ http://www.flickr.com/photos/young_einstein/74097753/ http://www.flickr.com/photos/drewm/4749504388/

123. Questions? http://www.slideshare.net/cistov http://www.twitter.com/cistov

Ajax in Django

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