Slides from 5/11/2011 Milwaukee Django User Group Meetup

2. Who is this fool?! A little about me

3. Graphic Art Photography Web Design Django VFX JavaScript Print Design Software Digital Media CSS Python Flash / Flex

5. PERL & JavaScript

7. Django = HotPileOfAwesome( yes=True ) Django.build_web_app( fast=True )

8. Django.make_an_app() >>> True Django.log_in_user() >>> True Django.comment_on_my_model() >>> True Django.message_my_user(user='myuser') >>> True Django.send_emails( emails=['me@mail.com'] ) >>> True Django.do_complex_SQL( please=True ) >>> No Problem!

9. Django.make_a_thumbnail() >>> Thumbnail? Django.send_text_message() >>> Email Exception: no such thing Django.search_all_my_stuff() >>> WTF? Django.get_data_in_under_75_queries() >>> Whoa... Django.alter_table(model='MyModel') >>> Let's not get crazy Django.be_restful( now=True ) >>> you meanrequest.POST

10. I've Got an app for that!

11. Searching

12. Searching Find Stuff - Fast

13. Searching Find Stuff - Fast ( without crushing my DB )

14. Haystack haystacksearch.org Djapian code.google.com/p/djapian/ Sphinx django-sphinx ( github )

16. slow

17. mysql

19. Haystack SearchQuerySet() .filter( SQ(field=True) | SQ(field__relation="something") ~SQ(field=False) ) >>> [ <SearchResult>, <SearchResult>, <SearchResult> ]

20. Xapian classArticleIndexer( Indexer ): fields = ['title','body'] tags = [ ('title','title', 3), ('body', 'as_plain_text', 1) ] space.add_index(Article, ArticleIndexer, attach_as='indexer')

21. Xapian fromdjapian.indexer import CompositeIndexer flags = xapian.QueryParser.FLAG_PARTIAL| br />xapian.QueryParser.FLAG_WILDCARD indexers = [ Model_1.indexer, Model_2.indexer ] comp = CompositeIndexer( *indexers ) s = comp.search( `a phrase` ).flags( flags ) >>> [ <hit:score=100>,<hit:score=98> ] $ s[0].instance >>> <ModelInstance:Model>

23. Whole Word Matching

24. Loads all indexers

25. Multiple Index Hooks

26. Stored fields

27. Django-like Syntax

28. Templates & Tags

29. Views, Forms & Fields

30. Wildcard Matching

31. Partial word matching

32. Doesn't Load All indexers

33. Interactive shell

34. Close to the metal ( Control )

35. Watches Models for changes

37. REST API Exposing Your Data

38. REST API Exposing Your Data ( In a meaningful way )

40. Can't restrict access based on HTTP methods

41. Serialization is left up to you

42. Manual auth

44. Piston classMyHandler( BaseHandler ): methods_allowed =( 'GET', 'PUT') model = MyModel classMyOtherHandler( BaseHandler ): methods_allowed =( 'GET', 'PUT') model = MyOtherModel fields = ('title','content',('author',('username',) ) ) exclude = ('id', re.compile(r'^private_')) defread( self, request): return [ x for x in MyOtherModel.objects.select_related() ] defupdate( self, request ): ...

45. Tastypie classMyResource( ModelResource ): fk_field = fields.ForiegnKey( OtherResource, 'fk_field' ) classMeta: authentication = ApiKeyAuthentication() queryset = MyModel.object.all() resource_name = 'resource' fields = ['title', 'content', ] allowed_methods = [ 'get' ] filtering = { 'somfield': ('exact', 'startswith') } defdehydrate_FOO( self, bundle ): return bundle.data[ 'FOO' ] = 'What I want'

46. Tastypie - Client Side newRequest.JSONP({ url:'http://www.yoursite.com/api/resource' ,method:'get' ,data:{ username:'billyblanks' ,api_key:'5eb63bbbe01eeed093cb22bb8f5acdc3' ,title__startswith:"Hello World" } ,onSuccess: function( data ){ console.info( data.meta ); console.log( data.objects ): }).send(); http://www.yoursite.com/api/resource/1 http://www.yoursite.com/api/resource/set/1;5 http://www.yoursite.com/api/resource/?format=xml

48. Built in fields

49. Auto Meta Data

50. Resource URIs

51. ORM ablities ( client )

52. API Key Auth

53. Object Caching ( backends )

54. De / Re hydrations hooks

55. Validation Via Forms

56. Deep ORM Ties

57. Data Streaming

58. OAuth / contrib Auth

59. URI Templates

61. DATABASE

62. DJANGO-SOUTH south.aeracode.org QUERYSET-TRANSFORM github.com/jbalogh/django-queryset-transform DJANGO-SELECTREVERSE code.google.com/p/django-selectreverse

63. SOUTH

64. SOUTH Database Migrations

65. DJANGO $ python manage.py syncdb

66. DJANGO $ python manage.py syncdb >>> You have a new Database!

67. DJANGO classMyModel( models.Model): relation = models.ForiegnKey( Model2 )

68. DJANGO classMyModel( models.Model ): relation = models.ForiegnKey( Model2 ) classMyModel( models.Model ): relation = models.ManyToMany( Model2 )

69. DJANGO $ python manage.py syncdb

70. DJANGO $ python manage.py syncdb >>> Sucks to be you!

71. WTF?!

73. DJANGO classMyModel( models.Model ): relation = models.ForiegnKey( Model2 ) classMyModel( models.Model ): relation = models.ManyToMany( Model2 )

74. SOUTH $ python manage.py schemamigration <yourapp> >>> Sweet, run migrate

75. SOUTH $ python manage.py migrate <yourapp> >>> Done.

76. SOUTH

77. QUERYSET-TRANSFORM github.com/jbalogh/django-queryset-transform ( n + 1 )

78. QUERYSET-TRANSFORM {%for object in object_list %} {%for object in object.things.all %} {%if object.relation %} {{ object.relation.field.text }} {%else%} {{ object.other_relation }} {%endif%} {%endfor%} {%empty%} no soup for you {%endfor%}

80. QUERYSET-TRANSFORM deflookup_tags(item_qs): item_pks = [item.pk for item in item_qs] m2mfield = Item._meta.get_field_by_name('tags')[0] tags_for_item = br />Tag.objects.filter( item__in = item_pks) .extra(select = {'item_id': '%s.%s' % ( m2mfield.m2m_db_table(), m2mfield.m2m_column_name() ) }) tag_dict = {} for tag in tags_for_item: tag_dict.setdefault(tag.item_id, []).append(tag) for item in item_qs: item.fetched_tags = tag_dict.get(item.pk, [])

81. QUERYSET-TRANSFORM qs = Item.objects.filter( name__contains = 'e' ).transform(lookup_tags)

82. QUERYSET-TRANSFORM from django.db import connection len( connection.queries ) >>> 2

83. DJANGO-SELECTREVERSE code.google.com/p/django-selectreverse

84. DJANGO-SELECTREVERSE Tries prefetching on reverse relations model_instance.other_model_set.all()

85. CONTENT MANAGEMENT

86. DJANGO-CMS www.django-cms.org WEBCUBE-CMS www.webcubecms.com SATCHMO www.satchmoproject.com

87. WEBCUBE-CMS

88. WEBCUBE-CMS Feature Complete

89. WEBCUBE-CMS Feature Complete Robust & Flexible

90. WEBCUBE-CMS Feature Complete Robust & Flexible ( Commercial License )

91. $12,000

92. $12,000

94. + $300 / mo

95. WTF?!

96. DJANGO-CMS

99. Plugin Support

100. Template Switching

101. Menu Control

102. Translations

103. Front-End Editing ( latest )

104. Moderation

105. Template Tags

106. Lots of settings

107. Lots Of Settings ( again )

108. Another Learning Curve

109. Plone Paradox

111. SATCHMO E-Commerce-y CMS

112. Django Admin

113. DJANGO-GRAPPELLI code.google.com/p/django-grappelli DJANGO-FILEBROWSE code.google.com/p/django-filebrowser DJANGO-ADMIN TOOLS bitbucket.org/izi/django-admin-tools

114. GRAPPELLI

115. GRAPPELLI

116. GRAPPELLI

117. FILEBROWSER

118. FILEBROWSER

119. FILEBROWSER

120. FILEBROWSER

121. ADMIN TOOLS

122. ADMIN TOOLS

123. ADMIN TOOLS

124. Image Management

125. DJANGO-IMAGEKIT bitbucket.org/jdriscoll/django-imagekit DJANGO-PHOTOLOGUE code.google.com/p/django-photologue SORL-THUMBNAIL thumbnail.sorl.net/

126. DJANGO classMyModel( models.Model ): image = models.ImageField(upload_to='/' )

127. DJANGO classMyModel( models.Model ): image = models.ImageField( upload_to='/' ) thumb = models.ImageField( upload_to='/' )

128. DJANGO classMyModel( models.Model ): image = models.ImageField( upload_to='/' ) thumb = models.ImageField( upload_to='/' ) >>> MyModel.objects.get(pk=1) >>> MyModel.objects.image.url >>> MyModel.objects.thumb.url

129. ImageField

130. ImageField It Kinda Sucks

131. IMAGEKIT Evolution Of Photologue

132. IMAGEKIT classPhoto( ImageModel ): name = models.CharField(max_length=100) image = models.ImageField(upload_to='photos') views = models.PositiveIntegerField(default=0) classIKOptions: #define the ImageKit options spec_module = 'myapp.specs' cache_dir = 'photos' image_field = 'image' save_count_as = 'views'

133. IMAGEKIT classResizeThumb( processors.Resize ): width = 100 height = 75 crop = True classResizeDisplay( processors.Resize ): width = 600 # now we can define our thumbnail spec classThumbnail( ImageSpec ): access_as = 'thumbnail_image' pre_cache = True processors = [ ResizeThumb ] classDisplay( ImageSpec ): increment_count = True processors = [ ResizeDisplay ]

134. IMAGEKIT $ photo = Photo.objects.get( pk =1 ) $ photo.display.url >>> u'/path/to/media/photo_display.jpg' $ photo.thumbnail.width >>> 100

136. DB Friendly

137. Format Adjustment

138. Color Adjustment

139. Transposing

140. Galleries out of the box

141. Bulk Upload

142. Admin Integration

143. Pre-cache command

144. Very DB Dependant

145. 4 Models ( 2 Solid )

146. Templates / Views / Urls

149. DB Friendly

150. Format Adjustment

151. Color Adjustment

152. Transposing

153. Galleries out of the box

154. Bulk Upload

155. Admin Integration

156. Pre-cache command

157. Very DB Dependant

158. 4 Models ( 2 Solid )

159. Exif SupportBeware of View Counts

160. ImageField

161. ImageField It's Kinda Messy

162. SORL

163. SORL from sorl.thumbnail import ImageField classMyModel( models.Model ): iamge = ImageField( upload_to="/folder" )

164. SORL {% load thumbnail %} {%thumbnail obj.image "1000x600" crop='top' as im %} <img src="{{ im.url }}" /> {%endthumbnail%}

165. MESSAGING

166. User - to - User Messaging

167. DJANGO-POSTMAN bitbucket.org/psam/django-postman DJANGO-MESSAGES code.google.com/p/django-messages DJANGO-SMS code.google.com/p/django-sms

168. DJANGO-SMS

169. DJANGO-SMS User Enters Phone # User Selects Carrier

170. THATS IT

171. FREE

172. UTILS

173. DJANGO-EXTENSIONS github.com/django-extensions/django-extensions DEBUG-TOOLBAR github.com/robhudson/django-debug-toolbar DJANGO-MAINTENANCEMODE pypi.python.org/pypi/django-maintenancemode DJANGO-PAGINATION github.com/ericflo/django-pagination DJANGO-GUARDIAN github.com/lukaszb/django-guardian HOTSAUCE ( self plug )

174. DJANGO-EXTENSIONS 21 Commands 4 Fields 2 Models 1 Admin Extension ( FK AutoComplete ) $ python manage.py dumpscript >>> your_app.py $ python manage.py runscript >>> your_app.pyc $ python manage.py runserver_plus >>> Debugger baked right in $ python manage.py shell_plus >>> AutoLoad Models $ python manage.py show_urls >>> /your/endpoint/:idproject.app.views.view_func

175. RUNSERVER_PLUS

176. DEBUG TOOLBAR

177. DEBUG TOOLBAR

178. MAINTENANCEMODE

179. MAINTENANCEMODE MAINTENANCE_MODE = True

180. MAINTENANCEMODE MAINTENANCE_MODE = True

181. MAINTENANCEMODE MAINTENANCE_MODE = True

182. HOTSAUCE

183. HOTSAUCE I Put That $*!T On Everything

184. HOTSAUCE

185. HOTSAUCE

186. HOTSAUCE QueueItem ChangeSet title content Model A ChangeSet title content ChangeSet Model A ChangeSet title content

187. HOTSAUCE