The document discusses best practices for tagging in a bike website called MyBike.JP. It describes using the Django tagging application to implement tags with a Tag model and TaggedItem model. It also discusses slugs, encoding special characters like & in URLs, and decoding URLs on the templates side.

1. tagging best practice
MyBike.JP dev team

5. e.g.

6. MyBike.JP

7. MyBike.JP

8. MyBike.JP

9. class Tag(DateTimeModel):
tag = models.SlugField(u' ', unique=True, db_index=True)
class TaggedItem(DateTimeModel):
tag = models.ForeignKey(Tag)
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')

10. Django ContentTypes
Tag
polymonic TaggedItem
Bike Component

13. bucho

14. bucho
Bucho

15. bucho
Bucho
BUCHO

16. bucho
Bucho
BUCHO

18. http://mybike.jp/bikes/tag/bucho

19. http://mybike.jp/bikes/tag/bucho
http://mybike.jp/bikes/tag/Bucho

20. http://mybike.jp/bikes/tag/bucho
http://mybike.jp/bikes/tag/Bucho
http://mybike.jp/bikes/tag/BUCHO

21. http://mybike.jp/bikes/tag/bucho
http://mybike.jp/bikes/tag/Bucho
http://mybike.jp/bikes/tag/BUCHO
http://mybike.jp/bikes/tag/

22. http://mybike.jp/bikes/tag/bucho
http://mybike.jp/bikes/tag/Bucho
http://mybike.jp/bikes/tag/BUCHO
http://mybike.jp/bikes/tag/
→

24. class Tag(DateTimeModel):
tag = models.SlugField(u' ', unique=True, db_index=True)
class TaggedItem(DateTimeModel):
tag = models.ForeignKey(Tag)
tag_label = models.CharField(max_length=100)
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')

25. class Tag(DateTimeModel):
tag = models.SlugField(u' ', unique=True, db_index=True)
class TaggedItem(DateTimeModel):
tag = models.ForeignKey(Tag)
tag_label = models.CharField(max_length=100)
content_type = models.ForeignKey(ContentType)
object_id = models.PositiveIntegerField()
content_object = generic.GenericForeignKey('content_type', 'object_id')

27. Tag.tag TaggedItem.tag_label

28. Tag.tag TaggedItem.tag_label
Tag.tag

29. Tag.tag TaggedItem.tag_label
Tag.tag

30. TaggedItem
bucho
Bucho
BUCHO

31. TaggedItem
bucho
Bucho
BUCHO

32. TaggedItem
bucho
Tag
Bucho
bucho
BUCHO

36. Good

37. Good

38. Good

39. Good
→

40. Bad

41. Bad

42. Bad

43. Bad

44. Bad
→

45. http://mybike.jp/bikes/tag/

46. http://mybike.jp/bikes/tag/
…

48. RIESE&MULLER
( & )
http://mybike.jp/bikes/manufacturer/RIESE&MULLER

52. http://mybike.jp/bikes/manufacturer/RIESE&MULLER

53. http://mybike.jp/bikes/manufacturer/RIESE&MULLER

54. http://mybike.jp/bikes/manufacturer/RIESE&MULLER
RISE&MULLER

55. http://mybike.jp/bikes/manufacturer/RIESE&MULLER
RISE&MULLER

56. http://mybike.jp/bikes/manufacturer/RIESE&MULLER
RISE&MULLER
…

58. slug regex → [-w]+

59. slug regex → [-w]+
reverse()

65. %26
→URL

66. %26
→URL
urls.py &
→

67. urls.py
(?P<manufacturer_name>[-w]+)

68. urls.py
(?P<manufacturer_name>[-w]+)
(?P<manufacturer_name>[- &w]+)

69. templates iriencode
→<a href=”{{ hoge|iriencode }}”>hoge</a>
urls.py URL decode

71. http://mybike.jp