Week 10: Rails Passion Course

1. Week 10: ActiveRecord Associations Basics (Topics covered: What is an Association?, Auto-generated methods, Cardinality, Unsaved objects and association)
2. Week 10 Resources
   o ActiveRecord::Associations:ClassMethods API from api.rubyonrails.org
   o Building Relationships Between Rails Models tutorial by Brian Leonard and Gail Chappell
3. 5525_rails_associations.zip (Unzip it in a directory of your choice and read lab document from /rails_associations/index.html to proceed) (4/21/09: Downloaded)
4. Presentation - PDF: 1 slide per page (OR) OpenOffice file (22 pages)
5. Online Lab/Change Log document (This is the same document you will find in the hands-on lab zip file) (84 pages)
6. EXERCISE #0: Start MySQL database server (p.g2) (4/21/2009: done)
7. EXERCISE #1: Add one-to-many association to rubyweblog application. (p.2-28)
8. (1.1) Create Comment Model class (p.3-6)
9. (1.2) Migrate database (p.6-7)
10. (1.3) Add association macros to the Model classes (p.8-11)
11. (1.4) Modify controller (p.11-15)
12. (1.5) Modify [view] templates (p.15-17)
13. (1.6) Save the changes (p.17-18)
14. (1.7) Refresh the browswer and perform user operation (p.19-21)
15. (1.8) Observing the database tables (p.22-26)
16. (1.9) Use Rails Console (p.26-28)
17. EXERCISE #2: Options for has_many (p.28-46)
18. (2.0) Create fresh test data using migration (p.28-33)
19. (2.1) Exercise :order option (p.34-39)
20. (2.2) Exercise :destroy option (p.39-46)
21. EXERCISE #3: Add many-to-many association to rubyweblog application (p.46-65)
22. (3.1) Create Category model class (p.46-49)
23. (3.2) Create "categories_posts" table through migration (p.49-55)
24. (3.3) Add many-to-many relationship between Post and Category models (p.55-58)
25. (3.4) Create test data through migration (p.59-64)
26. (3.5) Use Rails Console (p.64-65)
27. EXERCISE #4: Add many-to-many association to rubyweblog application using through - not ready yet
28. (4.1) Recreate rubyweblog_development database (p.66-68)
29. (4.2) Remove migration files that are not needed (p.68-69)
30. (4.3) Create a join model (p.70-73)
31. (4.4) Modify Post and Category models (p.73-75)
32. (4.5) Create test data through migration (p.75-79)
33. (4.6) Verify that the data tables are created correctly (p.79-83)
34. (4.7) Use Rails Console (p.83-84)
35. Finished Exercises (4:30pm)
    
36. Homework (p.84)