🕵️♀️ Task
The count method allows us to calculate the specific number of records that exist within an ActiveRecord::Relation.
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| id | title | year | duration | description | image | director_id |
|---|
| id | name | dob | bio | image |
|---|
| id | name | dob | bio | image |
|---|---|---|---|---|
| 52 | Uma Thurman | 1970-04-29 | Uma Karuna Thurman, daughte... | http://ia.media-imdb.com/im... |
| 53 | Duane Whitaker | 1959-06-23 | Duane Whitaker, a native of... | http://ia.media-imdb.com/im... |
| 54 | Paul Calderon | http://ia.media-imdb.com/im... | ||
| 55 | Frank Whaley | 1963-07-20 | Frank Whaley is a criticall... | http://ia.media-imdb.com/im... |
| 56 | Eli Wallach | 1915-12-07 | One of Hollywood's finest c... | http://ia.media-imdb.com/im... |
| 57 | Clint Eastwood | 1930-05-31 | Perhaps the icon of macho m... | http://ia.media-imdb.com/im... |
| 315 | Lionel Stander | 1908-01-11 | Lionel Stander, the movie c... | http://ia.media-imdb.com/im... |
| 58 | Lee Van Cleef | 1925-01-09 | One of the great movie vill... | http://ia.media-imdb.com/im... |
| id | actor_id | movie_id | name |
|---|---|---|---|
| 57 | 52 | 4 | Mia Wallace |
| 58 | 53 | 4 | Maynard |
| 59 | 54 | 4 | Paul / English Bob |
| 60 | 55 | 4 | Brett |
| 61 | 56 | 5 | Tuco |
| 62 | 57 | 5 | Blondie |
| 63 | 58 | 5 | Sentenza / Angel Eyes |
| 64 | 59 | 5 | Alcoholic Union Captain (as... |
Count how many records are in the customers table.
Customer.all.count
=> 327
Count how many records are in the products table.
Product.all.count
=> 183946