Test your basic knowledge |

Ruby On Rails Basics

Subject : it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. edit routes
<=> operator
rake db:migrate
render :partial
config/routes.rb

2. Command to run a migration
#{1+1}
plural
integration test
rake db:migrate

3. Long form of "rake" which can do more complex things like modifying the database structure and running testsis
the word "private"
ruby make
helper method
<=> operator

4. This variable changes the environment
RAILS_ENV (RAILS_ENV=production)
config/routes.rb
<% form_for() %>
CamelCase

5. Rails' object-relational mapping library
validate
model
config/routes.rb
ActiveRecord

6. to get ascii value of a character
puts ?x where x is the character (not variable)
config/routes.rb
attr_accessor
created_at

7. Embedded Ruby (ERb) processes data from model objects AND _______ as inputs
RAILS_ENV (RAILS_ENV=production)
the page template
a responder object
HTTP methods (post - get - put - delete)

8. These create namespaces
the class
errors.add_to_base("there was an error")
Modules
integration test

9. Converts database records to objects
rails generate migration AddPhoneToTickets phone:string
errors.add_to_base("there was an error")
data migration (db/migrate/..._create_something.rb)
an object-relational mapping library

10. All constants are _______
always public
validates_numericality_of
<%= yield %>
#{1+1}

11. a RESTful application uses ... to define an interaction with the data.
production
public
HTTP methods (post - get - put - delete)
integration test

12. to get character from ascii value
puts 12.chr
ActionPack
config/routes.rb
validate

13. to add an error (called "there was an error") in the validate method
nested classes
errors.add_to_base("there was an error")
production
helper method

14. controller (and table) names are _______
RAILS_ENV (RAILS_ENV=production)
rake db:migrate
HTTP methods (post - get - put - delete)
plural

15. to declare global variables
an object-relational mapping library
put a $ sign in front. For example $x
created_at
singular

16. to insert "1 + 1" into a string
always public
#{1+1}
Structs
:controller

17. Allows instance variables to be accessible outside the class by defining = operators for variables
underscore
attr_accessor
rails generate migration AddPhoneToTickets phone:string
f.error_messages

18. the model-generator command create the model class (app/models/something.rb) and the ____________
errors.add_to_base("there was an error")
data migration (db/migrate/..._create_something.rb)
ActiveRecord
render :partial

19. h in in <%=h ... %> is a ______ that escapes special characters to sanitize malicious input
always public
integration
ruby make
helper method

20. to generate regular model code (not scaffolding)
HTTP methods (post - get - put - delete)
<% form_for() %>
replace the word "scaffold" with the word "model"
model

21. Before it saves or updates data a model object _______
runs its validators
singular
#{1+1}
ActiveRecord

22. These create namespaces
Modules
:controller
CamelCase
put a $ sign in front. For example $x

23. Naming convention for file names
underscores
errors.add_to_base("there was an error")
helper method
replace the word "scaffold" with the word "model"

24. This method name indicates to rails that it should validate before saving/updating
rake db:migrate
validate
created_at
integration

25. All constants are _______
always public
polymorphism
validates_numericality_of
production

26. to call a partial
the class
include modulename
render :partial
an object-relational mapping library

27. to create a migration that adds a "phone" field to the "tickets" table
<%= yield %>
puts ?x where x is the character (not variable)
integration test
rails generate migration AddPhoneToTickets phone:string

28. to generate regular model code (not scaffolding)
replace the word "scaffold" with the word "model"
polymorphism
integration test
integration

29. to add an error (called "there was an error") in the validate method
put a $ sign in front. For example $x
<=> operator
include modulename
errors.add_to_base("there was an error")

30. Unlike regular erb files partials' names begin with an ________
Structs
underscore
Tweet.find(2).destroy
Structs

31. the three "magic columns" are:id - _______ - updated_at
integration
created_at
rake db:migrate
always public

32. to call a partial
the word "private"
Tweet.find(2).destroy
replace the word "scaffold" with the word "model"
render :partial

33. expression that all layouts have
rails generate migration AddPhoneToTickets phone:string
<%= yield %>
puts 12.chr
model

34. Rails' application framework
ActionPack
HTTP methods (post - get - put - delete)
RAILS_ENV (RAILS_ENV=production)
plural

35. This variable changes the environment
replace the word "scaffold" with the word "model"
ruby make
RAILS_ENV (RAILS_ENV=production)
plural

36. tag that starts a form
public
rake db:migrate
underscore
<% form_for() %>

37. models have only ______names
singular
rake db:migrate
<%= yield %>
CamelCase

38. A search form is not associated with a ______
errors.add_to_base("there was an error")
model
put a $ sign in front. For example $x
underscores

39. to specify a format like html or xml in routes.rb
.:format
:controller
RAILS_ENV (RAILS_ENV=production)
created_at

40. Converts database records to objects
ActionPack
an object-relational mapping library
render :partial
f.error_messages

41. express error messages in a form (do |f|)
errors.add_to_base("there was an error")
plural
f.error_messages
Embedded Ruby (ERb)

42. to insert "1 + 1" into a string
.:format
model
rake db:migrate
#{1+1}

43. Kinds of test you create yourself
integration test
the page template
puts 12.chr
underscore

44. Rails' application framework
ActionPack
ActiveRecord
underscores
puts ?x where x is the character (not variable)

45. The "format" in "repond_to do |format|"? is a ______
validates_numericality_of
model
created_at
a responder object

46. This method name indicates to rails that it should validate before saving/updating
data migration (db/migrate/..._create_something.rb)
validate
Tweet.find(2).destroy
created_at

47. Naming convention for file names
#{1+1}
an object-relational mapping library
underscores
rake db:migrate

48. Naming convention for classes
CamelCase
errors.add_to_base("there was an error")
include modulename
puts ?x where x is the character (not variable)

49. edit routes
config/routes.rb
helper method
Tweet.find(2).destroy
helper method

50. Naming convention for classes
plural
nested classes
Modules
CamelCase