Levelup

🕵️‍♀️ Task

Retrieve the titles of each record from the movies table.

movies

id (integer)
title (string)
year (integer)
duration (integer)
description (text)
image (string)
director_id (integer)

directors

id (integer)
name (string)
dob (date)
bio (text)
image (string)

actors

id (integer)
name (string)
dob (date)
bio (text)
image (string)

characters

id (integer)
actor_id (integer)
movie_id (integer)
name (string)

📖Method

On an ActiveRecord::Relation, the pluck method will retrieve one or more attributes of each record in the collection and returns them in a Array. You can pass one or more Symbols as an argument. Each Symbol must match the name of a column.

Data

id	title	year	duration	description	image	director_id

Data

id	name	dob	bio	image

Data

id	name	dob	bio	image
490	Al Ernest Garcia	1887-03-11
491	Hank Mann	1887-05-28
492	Charles Chaplin	1889-04-16	Charlie Chaplin, considered...	http://ia.media-imdb.com/im...
493	Peter Sellers	1925-09-08	Often credited as the great...	http://ia.media-imdb.com/im...
494	George C. Scott	1927-10-18	George C. Scott was an imme...	http://ia.media-imdb.com/im...
495	Slim Pickens	1919-06-29	Slim Pickens spent the earl...	http://ia.media-imdb.com/im...
496	Peter Bull	1912-03-21		http://ia.media-imdb.com/im...
559	Thomas F. Wilson	1959-04-15	Tom Wilson is a creative ar...	http://ia.media-imdb.com/im...

Data

id	actor_id	movie_id	name
504	451	35	Dr. Silberman
505	452	35	Miles Dyson
506	453	35	Tarissa Dyson
507	454	35	Enrique Salceda
508	455	35	Tim
509	456	35	Janelle Voight
510	457	35	Todd Voight
511	458	35	Twin Sarah

Examples

Retrieve the ages of each record in the persons table

Person.all.pluck(:age)
=> [42, 36, 22, 29, 27]

Retrieve the names of each record in the dishes table

Dish.all.pluck(:name)
=> ["Burger", "Mac & Cheese", "Kale Salad"]