Class: String

Inherits:
Object
  • Object
show all
Defined in:
lib/trello/string.rb

Instance Method Summary collapse

Instance Method Details

#json_into(obj) ⇒ Object

Decodes some JSON text in the receiver, and marshals it into a class specified in obj. If obj is not a class, then we marshall the data into that instance via update_fields.

For instance:

class Stuff
  attr_reader :a, :b
  def initialize(values)
    @a = values['a']
    @b = values['b']
  end
end
thing = '{"a":42,"b":"foo"}'.json_into(Stuff)
thing.a == 42
thing.b == "foo"



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# File 'lib/trello/string.rb', line 18

def json_into(obj)
  data = JSON.parse(self)
  action = obj.kind_of?(Class) ? :new : :update_fields
  if data.kind_of? Hash
    obj.send(action, JSON.parse(self))
  else
    data.map { |element| obj.send(action, element) }
  end
rescue JSON::ParserError => json_error
  if json_error.message =~ /model not found/
    Trello.logger.error "Could not find that record."
    raise Trello::Error, "Request could not be found."
  elsif json_error.message =~ /A JSON text must at least contain two octets/
  else
    Trello.logger.error "Unknown error."
    raise
  end
end