Class: Zn::Repos::JsonRepo

Inherits:
Object
  • Object
show all
Defined in:
lib/zn/repos/json_repo.rb

Overview

JsonRepo abstracts loading of external json data. For more demanding datasets, repos of other nature can be created later as needed. Examples of this include loading data asynchronously from json files, loading data from a database, elasticsearch, etc.

Instance Method Summary collapse

Constructor Details

#initialize(params) ⇒ JsonRepo

Returns a new instance of JsonRepo.



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# File 'lib/zn/repos/json_repo.rb', line 12

def initialize(params)
  dir = params.fetch('dir', '.')

  Dir.chdir(dir) do
    @io = File.new(params.fetch('file'))
  end
end

Instance Method Details

#all ⇒ Object 



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# File 'lib/zn/repos/json_repo.rb', line 20

def all
  @all ||= MultiJson.load(@io)
end

#search(params) ⇒ Object 



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# File 'lib/zn/repos/json_repo.rb', line 24

def search(params)
  return enum_for(:search, params) unless block_given?

  key = params.fetch(:key)
  value = params.fetch(:value)
  exact = params.fetch(:exact)

  if exact
    search_exact(key, value) { |result| yield result }
  else
    search_for_inclusion(key, value) { |result| yield result }
  end
end