Module: Yamlet::Model

Defined in:
lib/yamlet.rb

Class Method Summary collapse

Class Method Details

.included(klass) ⇒ Object 



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# File 'lib/yamlet.rb', line 29

def self.included(klass)
  klass.define_singleton_method :resource_name, -> {
    name = klass.to_s.downcase
    name.gsub!("::", "_") if name.include? "::"

    return name
  }

  klass.define_singleton_method :store, -> { Yamlet::Repository.store }

  klass.store.transaction { klass.store[klass.resource_name] ||= [] }

  klass.define_singleton_method :all, -> {
    store.transaction { store[resource_name] }
  }

  klass.define_singleton_method :find, ->(id) {
    store.transaction { store[resource_name].select { |s| s["id"] == id }[0] }
  }

  klass.define_singleton_method :create, ->(attributes = {}) {
    # Auto increment ids
    ids = all.empty? ? [0] : all.map { |s| s["id"] }
    id  = ids[-1].zero? ? 1 : ids[-1].succ

    if attributes.empty?
      store.transaction { store[resource_name].push({ "id" => id }) }
    else
      store.transaction {
        store[resource_name].push(
          {}.tap do |hash|
            hash["id"] = id
            attributes.each_pair { |k, v| hash[k.to_s] = v }
          end
        )
      }
    end
  }

  klass.define_singleton_method :update, ->(id, attributes) {
    store.transaction {
      store[resource_name].select { |s| s["id"] == id }[0].tap do |record|
        attributes.each_pair { |k, v| record[k.to_s] = v } unless record.nil?
      end
    }
  }

  klass.define_singleton_method :destroy, ->(id) {
    store.transaction { store[resource_name].delete_if { |h| h["id"] == id } }
  }

  klass.define_singleton_method :destroy_all, -> {
    store.transaction { store[resource_name] = [] }
  }

end