![Corecouch = CouchRest.new("http://127.0.0.1:5984")db = couch.database!('NWRUG')db.save_doc({ 'title' => 'Intro to CouchDB', 'speaker' => 'Ben Aldred', 'location' => 'BBC', 'tags' => ['couchdb', 'ruby']})](https://image.slidesharecdn.com/documentphpdocumentnamecouchdb-091214092112-phpapp01/85/Intro-to-CouchDB-31-320.jpg)
![Moreproperty :questions, :cast_as => ['Question']property :speaker, :cast_as => 'Person'property :started_at, :cast_as => 'Time'](https://image.slidesharecdn.com/documentphpdocumentnamecouchdb-091214092112-phpapp01/85/Intro-to-CouchDB-34-320.jpg)
Intro to CouchDB
- 1. Intro to CouchDBBen Aldredhttp://geekmade.co.uk@benaldred
- 2. DisclaimerI am not a CouchDB expert
- 3. I still quite like Relational DatabasesIntroducing...
- 4. Apache(so it must be good, right?)
- 6. CouchDB aims to solve problems
- 7. Scaling
- 8. Storing Data
- 9. How?
- 10. CouchDB Scalesjust like rails!
- 11. Non-locking Multiversion concurrency control (MVCC)
- 12. Replication
- 13. New way to model data
- 15. JSON{ "_id":"hello-world", "_rev":"AE19EBC7654", "title":"Hello World", "body":"content...", "date":"2009/12/25 15:52:20" }
- 16. JSON{ "_id":"hello-world", "_rev":"AE19EBC7654", "title":"Hello World", "body":"content...", "date":"2009/12/25 15:52:20" }
- 17. JSON{ "_id":"hello-world","_rev":"AE19EBC7654", "title":"Hello World", "body":"content...", "date":"2009/12/25 15:52:20" }
- 18. HTTP REST APICreate: PUT /:db Read: GET /:db/:docidUpdate: PUT /:db/:docidDelete: DELETE /:db/:docid
- 19. Views
- 20. Mapfunction(doc) { if(doc.date && doc.title) { emit(doc.date, doc.title); }} key | value-------------------------------------"2009/12/25 15:52:20" | "Hello World"
- 23. Demo
- 24. When to use CouchDB
- 25. When you need to scale
- 26. When availibility is more important than consistency
- 27. When not to use it
- 28. You want to leaverage the power of an ORM
- 29. CouchDB + Ruby
- 30. CouchRest
- 31. Corecouch = CouchRest.new("http://127.0.0.1:5984")db = couch.database!('NWRUG')db.save_doc({ 'title' => 'Intro to CouchDB', 'speaker' => 'Ben Aldred', 'location' => 'BBC', 'tags' => ['couchdb', 'ruby']})
- 32. Moreclass Presentation < CouchRest::ExtendedDocument include ::CouchRest::Validation property :title property :speaker property :location validates_present :titleend
- 33. MorePresentation.firstPresentation.allPresentation.by_title(:key => 'Ben Aldred')Presentation.get('intro_to_couchdb')
- 34. Moreproperty :questions, :cast_as => ['Question']property :speaker, :cast_as => 'Person'property :started_at, :cast_as => 'Time'
- 35. Moreview_by :started_at, :descending => trueview_by :speaker, :title
- 36. Moreview_by :name, :map => "function(doc) { if(doc.date && doc.title) { emit(doc.date, doc.title); } }"
- 37. Loads Morebut I have not got time