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Diffstat (limited to 'guides/source/active_record_querying.md')
| -rw-r--r-- | guides/source/active_record_querying.md | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/guides/source/active_record_querying.md b/guides/source/active_record_querying.md index 4725e2c8a2..d164b08d93 100644 --- a/guides/source/active_record_querying.md +++ b/guides/source/active_record_querying.md @@ -1338,11 +1338,6 @@ Client.unscoped { Dynamic Finders --------------- -NOTE: Dynamic finders have been deprecated in Rails 4.0 and will be -removed in Rails 4.1. The best practice is to use Active Record scopes -instead. You can find the deprecation gem at -https://github.com/rails/activerecord-deprecated_finders - For every field (also known as an attribute) you define in your table, Active Record provides a finder method. If you have a field called `first_name` on your `Client` model for example, you get `find_by_first_name` for free from Active Record. If you have a `locked` field on the `Client` model, you also get `find_by_locked` and methods. You can specify an exclamation point (`!`) on the end of the dynamic finders to get them to raise an `ActiveRecord::RecordNotFound` error if they do not return any records, like `Client.find_by_name!("Ryan")` @@ -1352,6 +1347,11 @@ If you want to find both by name and locked, you can chain these finders togethe Find or Build a New Object -------------------------- +NOTE: Some dynamic finders have been deprecated in Rails 4.0 and will be +removed in Rails 4.1. The best practice is to use Active Record scopes +instead. You can find the deprecation gem at +https://github.com/rails/activerecord-deprecated_finders + It's common that you need to find a record or create it if it doesn't exist. You can do that with the `find_or_create_by` and `find_or_create_by!` methods. ### `find_or_create_by` @@ -1455,7 +1455,7 @@ If you'd like to use your own SQL to find records in a table you can use `find_b ```ruby Client.find_by_sql("SELECT * FROM clients INNER JOIN orders ON clients.id = orders.client_id - ORDER clients.created_at desc") + ORDER BY clients.created_at desc") ``` `find_by_sql` provides you with a simple way of making custom calls to the database and retrieving instantiated objects. |