Module: Sinatra::Param

Defined in:
lib/sinatra/param.rb,
lib/sinatra/param/version.rb

Defined Under Namespace

Classes: InvalidParameterError

Constant Summary collapse

Boolean = 
:boolean
VERSION = 
'1.0.3'

Instance Method Summary collapse

Instance Method Details

#one_of(*names) ⇒ Object 



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# File 'lib/sinatra/param.rb', line 32

def one_of(*names)
  count = 0
  names.each do |name|
    if params[name] and present?(params[name])
      count += 1
      next unless count > 1

      error = "Parameters #{names.join(', ')} are mutually exclusive"
      if content_type and content_type.match(mime_type(:json))
        error = {message: error}.to_json
      end

      halt 400, error
    end
  end
end

#param(name, type, options = {}) ⇒ Object 



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# File 'lib/sinatra/param.rb', line 12

def param(name, type, options = {})
  name = name.to_s

  return unless params.member?(name) or present?(options[:default]) or options[:required]

  begin
    params[name] = coerce(params[name], type, options)
    params[name] = options[:default] if params[name].nil? and options[:default]
    params[name] = options[:transform].to_proc.call(params[name]) if options[:transform]
    validate!(params[name], options)
  rescue
    error = "Invalid parameter, #{name}"
    if content_type and content_type.match(mime_type(:json))
      error = {message: error}.to_json
    end

    halt 400, error
  end
end