🕵️♀️ Task
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.
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| id | title | year | duration | description | image | director_id |
|---|---|---|---|---|---|---|
| 49 | The Departed | 2006 | 151 | An undercover state cop who... | http://ia.media-imdb.com/im... | 12 |
| 50 | M | 1931 | 99 | When the police in a German... | http://ia.media-imdb.com/im... | 34 |
| 52 | Dunkirk | 2017 | 106 | Allied soldiers from Belgiu... | https://m.media-amazon.com/... | 5 |
| 51 | Interstellar | 2014 | 169 | A team of explorers travel ... | https://m.media-amazon.com/... | 5 |
| id | name | dob | bio | image |
|---|
| id | name | dob | bio | image |
|---|---|---|---|---|
| 44 | Amanda Plummer | 1957-03-23 | The daughter of Christopher... | http://ia.media-imdb.com/im... |
| 45 | Eric Stoltz | 1961-09-30 | Born on September 30, 1961 ... | http://ia.media-imdb.com/im... |
| 46 | Bruce Willis | 1955-03-19 | Actor and musician Bruce Wi... | http://ia.media-imdb.com/im... |
| 47 | Ving Rhames | 1959-05-12 | Irving "Ving" Rhames was bo... | http://ia.media-imdb.com/im... |
| 48 | Phil LaMarr | 1967-01-24 | http://ia.media-imdb.com/im... | |
| 49 | Maria de Medeiros | 1965-08-19 | Maria de Medeiros is the ol... | http://ia.media-imdb.com/im... |
| 50 | Rosanna Arquette | 1959-08-10 | Rosanna Arquette has acted ... | http://ia.media-imdb.com/im... |
| 51 | Peter Greene | 1965-10-08 | Born in Montclair, New Jers... | http://ia.media-imdb.com/im... |
| id | actor_id | movie_id | name |
|---|---|---|---|
| 49 | 44 | 4 | Honey Bunny / Yolanda |
| 50 | 45 | 4 | Lance |
| 51 | 46 | 4 | Butch Coolidge |
| 52 | 47 | 4 | Marsellus Wallace |
| 53 | 48 | 4 | Marvin |
| 54 | 49 | 4 | Fabienne |
| 55 | 50 | 4 | Jody |
| 56 | 51 | 4 | Zed |
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"]