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Diffstat (limited to 'guides/source/active_record_basics.md')
| -rw-r--r-- | guides/source/active_record_basics.md | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/guides/source/active_record_basics.md b/guides/source/active_record_basics.md index 11aefcb05f..9be9c6c7b7 100644 --- a/guides/source/active_record_basics.md +++ b/guides/source/active_record_basics.md @@ -38,7 +38,7 @@ object on how to write to and read from the database. ### Object Relational Mapping -Object Relational Mapping, commonly referred to as its abbreviation ORM, is +[Object Relational Mapping](https://en.wikipedia.org/wiki/Object-relational_mapping), commonly referred to as its abbreviation ORM, is a technique that connects the rich objects of an application to tables in a relational database management system. Using ORM, the properties and relationships of the objects in an application can be easily stored and @@ -304,6 +304,17 @@ user = User.find_by(name: 'David') user.destroy ``` +If you'd like to delete several records in bulk, you may use `destroy_all` +method: + +```ruby +# find and delete all users named David +User.where(name: 'David').destroy_all + +# delete all users +User.destroy_all +``` + Validations ----------- |