🕵️♀️ 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 |
|---|---|---|---|---|
| 139 | Christie Cronenweth | 1968-08-01 | ||
| 140 | Tim De Zarn | 1952-07-11 | http://ia.media-imdb.com/im... | |
| 141 | Ezra Buzzington | http://ia.media-imdb.com/im... | ||
| 142 | Mark Hamill | 1951-09-25 | Mark Richard Hamill grew up... | http://ia.media-imdb.com/im... |
| 143 | Harrison Ford | 1942-07-13 | Harrison Ford was born on J... | http://ia.media-imdb.com/im... |
| 144 | Carrie Fisher | 1956-10-21 | http://ia.media-imdb.com/im... | |
| 145 | Billy Dee Williams | 1937-04-06 | Billy Dee Williams was born... | http://ia.media-imdb.com/im... |
| 146 | Anthony Daniels | 1946-02-21 | http://ia.media-imdb.com/im... |
| id | actor_id | movie_id | name |
|---|---|---|---|
| 153 | 147 | 11 | Darth Vader |
| 154 | 148 | 11 | Chewbacca |
| 155 | 149 | 11 | R2-D2 |
| 156 | 150 | 11 | Yoda (voice) |
| 157 | 151 | 11 | Ben 'Obi-wan' Kenobi |
| 158 | 152 | 11 | Boba Fett |
| 159 | 153 | 11 | Lando's Aide |
| 160 | 154 | 11 | Chief Ugnaught |
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