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Rails_i18n.rb
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Rails_i18n.rb
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cheatsheet do
title 'Rails i18n'
docset_file_name 'Rails_i18n'
keyword 'rails'
source_url 'http://cheat.kapeli.com'
category do
id 'Intro'
entry do
name 'Basic'
notes <<-END
***Ruby file***
```ruby
t('my.messages.hello')
# same as 'my.messages.hello'
t(:hello, scope: 'my.messages')
t(:hello, scope: [:my, :messages])
t('my.messages.hello', default: "Hello")
```
***en.yml***
```yaml
en:
my:
messages:
hello: "Hello"
```
END
end
entry do
name 'Interpolation'
notes <<-END
```ruby
t('hello', name: "John")
```
```yaml
hello: "Hello %{name}"
```
END
end
entry do
name 'Lazy lookup'
notes <<-END
```ruby
# from the view: books/index
t '.title'
```
```yaml
en:
books:
index:
title: "Títle"
```
END
end
entry do
name 'Plural'
notes <<-END
```ruby
t(:inbox, count: 1) #=> 'one message'
t(:inbox, count: 2) #=> '2 messages'
```
```yaml
inbox:
one: 'one message',
other: '%{count} messages'
```
END
end
end
category do
id 'Localizing'
entry do
name 'Time'
notes <<-END
```ruby
l(Time.now)
l(Time.now, format: :short)
```
```yaml
en:
time:
formats:
default: "%a, %d %b %Y %H:%M:%S %z"
long: "%B %d, %Y %H:%M"
short: "%d %b %H:%M"
```
END
end
entry do
name 'Date'
notes <<-END
```ruby
l(Date.today)
```
```yaml
en:
date:
formats:
default: "%Y-%m-%d" # 2015-06-25
long: "%B %d, %Y" # June 25, 2015
short: "%b %d" # Jun 25
```
END
end
end
category do
id 'ActiveRecord'
entry do
name 'Model names'
notes <<-END
```ruby
User.model_name.human #=> "User"
Child.model_name.human(count: 2) #=> "Children"
Person.model_name.singular #=> "Person"
Person.model_name.plural #=> "People"
```
```yaml
en:
activerecord:
models:
user: "User"
child:
one: "Child"
other: "Children"
```
END
end
entry do
name 'Attributes'
notes <<-END
```ruby
User.human_attribute_for :name #=> "Name"
```
```yaml
en:
activerecord:
attributes:
user:
# activerecord.attributes.<model>.<field>
name: "Name"
email: "Email"
```
END
end
entry do
name 'Error messages'
notes <<-END
```ruby
error_messages_for(...)
```
```yaml
activerecord:
errors:
models:
venue:
attributes:
name:
blank: "Please enter a name
```
***Possible scopes (in order):***
```
activerecord.errors.models.[model_name].attributes.[attribute_name].[error]
activerecord.errors.models.[model_name].[error]
activerecord.errors.messages.[error]
errors.attributes.[attribute_name].[error]
errors.messages.[error]
```
***Where `[error]` can be:***
```ruby
validates
confirmation - :confirmation
acceptance - :accepted
presence - :blank
length - :too_short (%{count})
length - :too_long (%{count})
length - :wrong_length (%{count})
uniqueness - :taken
format - :invalid
numericality - :not_a_number
```
END
end
entry do
name 'Form labels'
notes <<-END
```ruby
form_for @post do
f.label :body
```
```yaml
helpers:
# helpers.label.<model>.<field>
label:
post:
body: "Your body text"
```
END
end
entry do
name 'Submit buttons'
notes <<-END
```ruby
form_for @post do
f.submit
```
```yaml
helpers:
submit:
# helpers.submit.<action>
create: "Create a %{model}"
update: "Confirm changes to %{model}"
# helpers.submit.<model>.<action>
article:
create: "Publish article"
update: "Update article"
```
END
end
end
category do
id 'Numbers'
entry do
notes <<-END
```ruby
number_to_delimited(2000) #=> "2,000"
number_to_currency(12.3) #=> "$12.30"
number_to_percentage(0.3) #=> "30%"
number_to_rounded(3.14, precision: 0) #=> "3"
number_to_human(12_000) #=> "12 Thousand"
number_to_human_size(12345) #=> "12.3 kb"
```
END
end
entry do
name 'Delimited'
notes <<-END
```ruby
number_to_delimited(n)
```
```yaml
number:
format:
separator: '.'
delimiter: ','
precision: 3
significant: false
strip_insignificant_zeroes: false
```
END
end
entry do
name 'Currencies'
notes <<-END
```ruby
number_to_currency(n)
```
```yaml
number:
currency:
format:
format: "%u%n" # %u = unit, %n = number
unit: "$"
separator: '.'
delimiter: ','
precision: 3
# (see number.format)
```
END
end
entry do
name 'Percentage'
notes <<-END
```ruby
number_to_percentage(n)
```
```yaml
number:
percentage:
format:
format: "%n%"
# (see number.format)
```
END
end
end
category do
id 'Programmatic access'
entry do
notes <<-END
```ruby
I18n.backend.store_translations :en, ok: "Ok"
I18n.locale = :en
I18n.default_locale = :en
I18n.available_locales
I18n.translate :ok # aka, I18n.t
I18n.localize date # aka, I18n.l
```
END
end
end
notes <<-END
Ported from the cheatsheet: http://ricostacruz.com/cheatsheets/rails-i18n.html
***References***
* http://guides.rubyonrails.org/i18n.html
* http://rails-i18n.org/wiki
* https://github.com/svenfuchs/i18n
* https://github.com/svenfuchs/rails-i18n/blob/master/rails/locale/en.yml
END
end