Class: PlatformosCheck::JsonHelper

Inherits:
Object
  • Object
show all
Defined in:
lib/platformos_check/json_helper.rb

Class Method Summary collapse

Class Method Details

.delete(hash, path) ⇒ Object

Deeply delete a key from a hash



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# File 'lib/platformos_check/json_helper.rb', line 20

def self.delete(hash, path)
  path = path.split('.') if path.is_a?(String)
  path.each_with_index.reduce(hash) do |pointer, (token, index)|
    break pointer.delete(token) if index == path.size - 1

    pointer[token]
  end
end

.json_corrector(json, path, value) ⇒ Object

Deeply add key/values inside a hash.

Handles arrays by adding the key/value to all hashes inside the array.

Specially handles objects that have the “id” key like this:

e.g.

json = {

"deep" => [
  { "id" => "hi" },
  { "id" => "oh" },
],

} assert_equal(

{
  "deep" => [
    { "id" => "hi", "ho" => "ho" },
    { "id" => "oh" },
  ],
},
JsonHelper.json_corrector(json, "deep.hi.ho", "ho")

)



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# File 'lib/platformos_check/json_helper.rb', line 52

def self.json_corrector(json, path, value)
  return json unless json.is_a?(Hash)

  path = path.split('.') if path.is_a?(String)
  path.each_with_index.reduce(json) do |pointer, (token, index)|
    case pointer
    when Array
      pointer.each do |item|
        json_corrector(item, path.drop(1), value)
      end

    when Hash
      break pointer[token] = value if index == path.size - 1

      pointer[token] = {} unless pointer.key?(token) || pointer.key?("id")
      pointer[token].nil? && pointer["id"] == token ? pointer : pointer[token]
    end
  end
  json
end

.set(hash, path, value) ⇒ Object

Deeply sets a value in a hash. Accepts both arrays and strings for path.



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# File 'lib/platformos_check/json_helper.rb', line 6

def self.set(hash, path, value)
  path = path.split('.') if path.is_a?(String)
  path.each_with_index.reduce(hash) do |pointer, (token, index)|
    if index == path.size - 1
      pointer[token] = value
    elsif !pointer.key?(token) || !pointer[token].is_a?(Hash)
      pointer[token] = {}
    end
    pointer[token]
  end
  hash
end