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Correct typos in "Active Record Query Interface" guide

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Laura Murphy-Clarkin 2016-03-24 11:35:25 +00:00 committed by Laura Murphy-Clarkin
parent 044baef101
commit 2657ec8973
1 changed files with 19 additions and 19 deletions
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38
guides/source/active_record_querying.md
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@ -153,9 +153,9 @@ You can pass in a numerical argument to the `take` method to return up to that n
```ruby
client = Client.take(2)
# => [
#<Client id: 1, first_name: "Lifo">,
#<Client id: 220, first_name: "Sara">
]
# #<Client id: 1, first_name: "Lifo">,
# #<Client id: 220, first_name: "Sara">
# ]
```
The SQL equivalent of the above is:
@ -192,10 +192,10 @@ You can pass in a numerical argument to the `first` method to return up to that
```ruby
client = Client.first(3)
# => [
#<Client id: 1, first_name: "Lifo">,
#<Client id: 2, first_name: "Fifo">,
#<Client id: 3, first_name: "Filo">
]
# #<Client id: 1, first_name: "Lifo">,
# #<Client id: 2, first_name: "Fifo">,
# #<Client id: 3, first_name: "Filo">
# ]
```
The SQL equivalent of the above is:
@ -243,10 +243,10 @@ You can pass in a numerical argument to the `last` method to return up to that n
```ruby
client = Client.last(3)
# => [
#<Client id: 219, first_name: "James">,
#<Client id: 220, first_name: "Sara">,
#<Client id: 221, first_name: "Russel">
]
# #<Client id: 219, first_name: "James">,
# #<Client id: 220, first_name: "Sara">,
# #<Client id: 221, first_name: "Russel">
# ]
```
The SQL equivalent of the above is:
@ -1613,7 +1613,7 @@ now want the client named 'Nick':
```ruby
nick = Client.find_or_initialize_by(first_name: 'Nick')
# => <Client id: nil, first_name: "Nick", orders_count: 0, locked: true, created_at: "2011-08-30 06:09:27", updated_at: "2011-08-30 06:09:27">
# => #<Client id: nil, first_name: "Nick", orders_count: 0, locked: true, created_at: "2011-08-30 06:09:27", updated_at: "2011-08-30 06:09:27">
nick.persisted?
# => false
@ -1645,10 +1645,10 @@ Client.find_by_sql("SELECT * FROM clients
INNER JOIN orders ON clients.id = orders.client_id
ORDER BY clients.created_at desc")
# => [
#<Client id: 1, first_name: "Lucas" >,
#<Client id: 2, first_name: "Jan" >,
# ...
]
# #<Client id: 1, first_name: "Lucas" >,
# #<Client id: 2, first_name: "Jan" >,
# ...
# ]
```
`find_by_sql` provides you with a simple way of making custom calls to the database and retrieving instantiated objects.
@ -1660,9 +1660,9 @@ Client.find_by_sql("SELECT * FROM clients
```ruby
Client.connection.select_all("SELECT first_name, created_at FROM clients WHERE id = '1'")
# => [
{"first_name"=>"Rafael", "created_at"=>"2012-11-10 23:23:45.281189"},
{"first_name"=>"Eileen", "created_at"=>"2013-12-09 11:22:35.221282"}
]
# {"first_name"=>"Rafael", "created_at"=>"2012-11-10 23:23:45.281189"},
# {"first_name"=>"Eileen", "created_at"=>"2013-12-09 11:22:35.221282"}
# ]
```
### `pluck`