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diff --git a/guides/source/active_record_querying.md b/guides/source/active_record_querying.md index 2e7bb74d0b..6cfb6c5ca5 100644 --- a/guides/source/active_record_querying.md +++ b/guides/source/active_record_querying.md @@ -1,3 +1,5 @@ +**DO NOT READ THIS FILE IN GITHUB, GUIDES ARE PUBLISHED IN http://guides.rubyonrails.org.** + Active Record Query Interface ============================= @@ -1334,14 +1336,14 @@ Understanding The Method Chaining The Active Record pattern implements [Method Chaining](http://en.wikipedia.org/wiki/Method_chaining), which allow us to use multiple Active Record methods together in a simple and straightforward way. -You can chain a method in a sentence when the previous method called returns `ActiveRecord::Relation`, -like `all`, `where`, and `joins`. Methods that returns a instance of a single object -(see [Retrieving a Single Object Section](#retrieving-a-single-object)) have to be be the last -in the sentence. +You can chain methods in a statement when the previous method called returns an +`ActiveRecord::Relation`, like `all`, `where`, and `joins`. Methods that return +a single object (see [Retrieving a Single Object Section](#retrieving-a-single-object)) +have to be at the end of the statement. -There are some examples below. This guide won't cover all the possibilities, just a few as example. -When a Active Record method is called, the query is not immediately generated and sent to the database, -this just happen when the data is actually needed. So each example below generate a single query. +There are some examples below. This guide won't cover all the possibilities, just a few as examples. +When an Active Record method is called, the query is not immediately generated and sent to the database, +this just happens when the data is actually needed. So each example below generates a single query. ### Retrieving filtered data from multiple tables @@ -1382,17 +1384,12 @@ WHERE people.name = 'John' LIMIT 1 ``` -NOTE: Remember that, if `find_by` return more than one registry, it will take just the first -and ignore the others. Note the `LIMIT 1` statement above. +NOTE: Remember that, if `find_by` returns more than one registry, it will take +just the first and ignore the others. Note the `LIMIT 1` statement above. Find or Build a New Object -------------------------- -NOTE: Some dynamic finders were deprecated in Rails 4.0 and -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` |