Rails

Question 1

Where are links managed in rails?

Answer 1

routes.rb

Question 2

Where is the Rails API found?

Answer 2

api.rubyonrails.org

Question 3

How do you get started with rails?

Answer 3

gem install rails;rails new myapp;cd myapp;rails server

Question 4

Template files where ruby and html code co-exist?

Answer 4

.erb files

Question 5

How do you display an image link?

Answer 5

0), :action => ‘about’ %>

Question 6

Where are gems needed for a web application listed?

Answer 6

Gemfile

Question 7

How do you install all gems listed in Gemfile?

Answer 7

bundle install

Question 8

How do you start the server? What port will it listen on by default?

Answer 8

rails server; runs on port 3000 by default

Question 9

How do you get started with (install) heroku?

Answer 9

gem install heroku

Question 10

How do you upload your SSH pulic key to heroku?

Answer 10

heroku keys:add

Question 11

How do you setup your heroku remote applicatino?

Answer 11

heroku create

Question 12

How do you push your master branch to heroku remote?

Answer 12

git push heroku master

Question 13

How do you renamge your heroku app

Answer 13

giving it a new [name].heroku.com?,heroku rename superName

Question 14

What does ReST stand for?

Answer 14

Representational State Transfer

Question 15

How do you get rails to automatically generate User with id, name, email?

Answer 15

rails generate scaffold User name:string email:string

Question 16

How do you create a class “Task” that extends from ActiveRecord?

Answer 16

class Task < ActiveRecord::Base

Question 17

How do you get all the names as an array?

Answer 17

find(:all).collect(&:name)

Question 18

How do you prevent an attribute (admin) from being set via mass assignment?

Answer 18

attr_protected :admin

Question 19

app/

Answer 19

Core application (app) code, including models, views, controllers, and helpers

Question 20

app/assets

Answer 20

Applications assets such as cascading style sheets (CSS), JavaScript files, and images

Question 21

bin/

Answer 21

Binary executable files

Question 22

config/

Answer 22

Application configuration

Question 23

db/

Answer 23

Database files

Question 24

doc/

Answer 24

Documentation for the application

Question 25

lib/

Answer 25

Library modules

Question 26

lib/assets

Answer 26

Library assets such as cascading style sheets (CSS), JavaScript files, and images

Question 27

log/

Answer 27

Application log files

Question 28

public/

Answer 28

Data accessible to the public (e.g., web browsers), such as error pages

Question 29

bin/rails

Answer 29

A program for generating code, opening console sessions, or starting a local server

Question 30

test/

Answer 30

Application tests (made obsolete by the spec/ directory in Section 3.1)

Question 31

tmp/

Answer 31

Temporary files

Question 32

vendor/

Answer 32

Third-party code such as plugins and gems

Question 33

vendor/assets

Answer 33

Third-party assets such as cascading style sheets (CSS), JavaScript files, and images

Question 34

README.rdoc

Answer 34

A brief description of the application

Question 35

Rakefile

Answer 35

Utility tasks available via the rake command

Question 36

Gemfile

Answer 36

Gem requirements for this app

Question 37

Gemfile.lock

Answer 37

A list of gems used to ensure that all copies of the app use the same gem versions

Question 38

config.ru

Answer 38

A configuration file for Rack middleware

Question 39

.gitignore

Answer 39

Patterns for files that should be ignored by Git

Question 40

Start a rails server

Answer 40

> rails s

Question 41

app/assets/

Answer 41

CSS and Javascript files for the app

Question 42

app/controllers/

Answer 42

All the controllers that handle requests fro the app

Question 43

app/helpers/

Answer 43

Helper methods for the views in the browser

Question 44

app/mailer/

Answer 44

All the modules to send email from the app

Question 45

app/models/

Answer 45

The models that interact the database; ActiveRecord::Base selector classes

Question 46

app/views/

Answer 46

HTML templates for the app

Question 47

Create a controller

Answer 47

> rails g controller CONTROLLER_NAME [methods]

Question 48

Kill a rails server

Answer 48

Ctrl + C

Question 49

Crete a database model

Answer 49

> rails g model TABLE_NAME [field:data_type] Models are the database tables for storing and structuring data

Question 50

Ruby make command

Answer 50

> rake (rails make)

Question 51

Create the database table from a model

Answer 51

> rake db:migrate

Question 52

A variable

Answer 52

@variable_name

Question 53

A hyperlink

Question 54

Set a variable equal to all rows in a table

Answer 54

@variable = Table.all

Question 55

See routes available in the system

Answer 55

> rake routes

Question 56

Render with no body

Answer 56

head status: 503

Question 57

Redirect method

Answer 57

redirect_to PAGE_URL

Question 58

Render a template into a layout

Answer 58

looks for a template with the same name as the request

Question 59

Layout tag for CSS

Answer 59

“all” %>

Question 60

Layout tag for Javascript

Question 61

Layout tag for meta data

Question 62

Include a textbox within a form

Question 63

Include a checkbox within a form

Question 64

Include a date selector within a form

Question 65

Include a submit button

Question 66

Loop through all the items in a database table

Answer 66

@variable.each

Question 67

To get input from the console

Answer 67

variable = gets

Question 68

To print something to the console

Answer 68

puts “PRINTED”