class Faker::Json

Public Class Methods

add_depth_to_json(json: shallow_json, width: 3, options: { key: 'Name.first_name', value: 'Name.first_name' }) click to toggle source

Produces a random nested JSON formatted string that can take JSON as an additional argument.

@param json [Hash{String => String}] Specifies a Json.shallow_json and uses its keys as keys of the nested JSON. @param width [Integer] Specifies the number of nested key-value pairs. @param options [Hash] Specifies a Faker gem class to use for nested keys and for values, respectably. options_hash = {key: Class.method, value: Class.method} @return [Hash{String => String}]

@example

json = Faker::Json.shallow_json(width: 3, options: { key: 'Name.first_name', value: 'Name.last_name' })
puts json # =>
  {"Alisha":"Olson","Everardo":"DuBuque","Bridgette":"Turner"}

json2 = Faker::Json.add_depth_to_json(json: json, width: 2, options: { key: 'Name.first_name', value: 'Name.last_name' })
puts json2 # =>
  {"Alisha":{"Daisy":"Trantow","Oda":"Haag"},
   "Everardo":{"Javier":"Marvin","Eliseo":"Schuppe"},
   "Bridgette":{"Jorge":"Kertzmann","Lelah":"MacGyver"}}

 json3 = Faker::Json.add_depth_to_json(json: json2, width: 4, options: { key: 'Name.first_name', value: 'Name.last_name' })
   puts json3 # =>
     {"Alisha":
       {"Daisy":
         {"Bulah":"Wunsch","Cristian":"Champlin","Lester":"Bartoletti","Greg":"Jacobson"},
        "Oda":
          {"Salvatore":"Kuhlman","Aubree":"Okuneva","Larry":"Schmitt","Velva":"Gibson"}},
      "Everardo":
        {"Javier":
          {"Eduardo":"Orn","Laila":"Kub","Thad":"Legros","Dion":"Wilderman"},
        "Eliseo":
          {"Olin":"Hilpert","Marisa":"Greenfelder","Karlee":"Schmitt","Judd":"Larkin"}},
      "Bridgette":
        {"Jorge":
          {"Eloy":"Pfeffer","Kody":"Hansen","Paxton":"Lubowitz","Abe":"Lesch"},
        "Lelah":
          {"Rick":"Wiza","Bonita":"Bayer","Gardner":"Auer","Felicity":"Abbott"}}}

@faker.version 1.9.2

# File lib/faker/default/json.rb, line 69
def add_depth_to_json(json: shallow_json, width: 3, options: { key: 'Name.first_name', value: 'Name.first_name' })
  options[:key] = "Faker::#{options[:key]}"
  options[:value] = "Faker::#{options[:value]}"

  hash = JSON.parse(json)
  hash.each_key do |key|
    add_hash_to_bottom(hash, [key], width, options)
  end
  JSON.generate(hash)
end
shallow_json(width: 3, options: { key: 'Name.first_name', value: 'Name.first_name' }) click to toggle source

Produces a random simple JSON formatted string.

@param width [Integer] Specifies the number of key-value pairs. @param options [Hash] Specifies a Faker gem class to use for keys and for values, respectably. options_hash = {key: Class.method, value: Class.method} @return [Hash{String => String}]

@example

Faker::Json.shallow_json(width: 3, options: { key: 'RockBand.name', value: 'Seinfeld.quote' }) # =>
  {"Parliament Funkadelic":"They're real, and they're spectacular.",
  "Fleetwood Mac":"I'm not a lesbian. I hate men, but I'm not a lesbian.",
  "The Roots":"It became very clear to me sitting out there today that every decision
  I've made in my entire life has been wrong. My life is the complete opposite of everything
  I want it to be. Every instinct I have, in every aspect of life, be it something to wear,
  something to eat - it's all been wrong."}

@faker.version 1.9.2

# File lib/faker/default/json.rb, line 23
def shallow_json(width: 3, options: { key: 'Name.first_name', value: 'Name.first_name' })
  options[:key] = "Faker::#{options[:key]}"
  options[:value] = "Faker::#{options[:value]}"

  hash = build_shallow_hash(width, options)
  JSON.generate(hash)
end

Private Class Methods

add_hash(key_array, hash, width, options) click to toggle source
# File lib/faker/default/json.rb, line 106
def add_hash(key_array, hash, width, options)
  string_to_eval = 'hash'
  key_array.length.times do |index|
    string_to_eval << "['#{key_array[index]}']"
  end
  string_to_eval << " = #{build_shallow_hash(width, options)}"
  eval(string_to_eval)
  hash
end
add_hash_to_bottom(hash, key_array, width, options) click to toggle source
# File lib/faker/default/json.rb, line 93
def add_hash_to_bottom(hash, key_array, width, options)
  key_string = build_keys_from_array(key_array)
  if eval("hash#{key_string}").is_a?(::Hash)
    eval("hash#{key_string}").each_key do |key|
      key_array << key
      add_hash_to_bottom(hash, key_array, width, options)
    end
  else
    add_hash(key_array, hash, width, options)
    key_array.pop
  end
end
build_keys_from_array(key_array) click to toggle source
# File lib/faker/default/json.rb, line 116
def build_keys_from_array(key_array)
  key_string = ''
  key_array.each do |value|
    key_string << "['#{value}']"
  end
  key_string
end
build_shallow_hash(width, options) click to toggle source
# File lib/faker/default/json.rb, line 82
def build_shallow_hash(width, options)
  key = options[:key]
  value = options[:value]

  hash = {}
  width.times do
    hash[eval(key)] = eval(value)
  end
  hash
end