Class: I18n::Backend::Chain

### Home Classes Methods

### In Files

- lib/i18n/backend/chain.rb

### Parent

Object

### Namespace

- MODULE I18n::Backend::Chain::Implementation

### Included Modules

- I18n::Backend::Chain::Implementation

### Class/Module Index

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- I18n
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- I18n::Backend::Fallbacks
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- I18n::Backend::Gettext
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- I18n::Backend::InterpolationCompiler
- I18n::Backend::InterpolationCompiler::Compiler
- I18n::Backend::KeyValue
- I18n::Backend::KeyValue::Implementation
- I18n::Backend::Memoize
- I18n::Backend::Metadata
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- I18n::Backend::Simple
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- I18n::Config
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- I18n::Gettext::Helpers
- I18n::InvalidLocale
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- I18n::Locale::Tag::Rfc4646::Parser
- I18n::Locale::Tag::Simple
- I18n::MissingInterpolationArgument
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- I18n::Tests::Procs
- I18n::UnknownFileType
- GetText
- GetText::PoParser
- Hash
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No matching classes.

# I18n::Backend::Chain

Backend that chains multiple other backends and checks each of them when a translation needs to be looked up. This is useful when you want to use standard translations with a Simple backend but store custom application translations in a database or other backends.

To use the Chain backend instantiate it and set it to the I18n module. You can add chained backends through the initializer or backends accessor:

    # preserves the existing Simple backend set to I18n.backend
    I18n.backend = I18n::Backend::Chain.new(I18n::Backend::ActiveRecord.new, I18n.backend)

The implementation assumes that all backends added to the Chain implement a lookup method with the same API as Simple backend does.

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