Class: Hashie::Trash

### Home Classes Methods

### In Files

- lib/hashie/trash.rb

### Parent

Hashie::Dash

### Methods

- ::property
- #[]=

### Class/Module Index

Quicksearch

- Hashie
- Hashie::Clash
- Hashie::Clash::ChainError
- Hashie::Dash
- Hashie::Hash
- Hashie::HashExtensions
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- Hashie::Trash

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# Hashie::Trash

A Trash is a 'translated' Dash where the keys can be remapped from a source hash.

Trashes are useful when you need to read data from another application, such as a Java api, where the keys are named differently from how we would in Ruby.

### Public Class Methods

property(property_name, options = {}) click to toggle source

Defines a property on the Trash. Options are as follows:

- `:default` - Specify a default value for this property, to be

returned before a value is set on the property in a new Dash.

- `:from` - Specify the original key name that will be write only.

    # File lib/hashie/trash.rb, line 17
    def self.property(property_name, options = {})
      super

      if options[:from]
        translations << options[:from].to_sym
        class_eval           def #{options[:from]}=(val)            self[:#{property_name}] = val          end
      end
    end

### Public Instance Methods

[]=(property, value) click to toggle source

Set a value on the Dash in a Hash-like way. Only works on pre-existing properties.

    # File lib/hashie/trash.rb, line 32
    def []=(property, value)
      if self.class.translations.include? property.to_sym
        send("#{property}=", value)
      elsif property_exists? property
        super
      end
    end

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