class Scrivener

Constants

VERSION

Public Class Methods

inherited(sub_class) click to toggle source

This will allow you to inhreit from other Scrivener classes

# File lib/scrivener.rb, line 11
def self.inherited(sub_class)
  sub_class.send(:attr_accessor, *instance_methods(false).select { |m| !m['='] }) unless self.name == 'Scrivener'
end

new(atts) click to toggle source

Initialize with a hash of attributes and values. Extra attributes are discarded.

@example

class EditPost < Scrivener
  attr_accessor :title
  attr_accessor :body

  def validate
    assert_present :title
    assert_present :body
  end
end

edit = EditPost.new(title: "Software Tools")

edit.valid? #=> false

edit.errors[:title] #=> []
edit.errors[:body]  #=> [:not_present]

edit.body = "Recommended reading..."

edit.valid? #=> true

# Now it's safe to initialize the model.
post = Post.new(edit.attributes)
post.save

# File lib/scrivener.rb, line 44
def initialize(atts)
  @_accessors = atts.keys.map { |key| "#{key}=".to_sym }

  atts.each do |key, val|
    accessor = "#{key}="

    if respond_to?(accessor)
      send(accessor, val)
    end
  end
end

Public Instance Methods

_accessors() click to toggle source

# File lib/scrivener.rb, line 56
def _accessors
  @_accessors & public_methods(false).select do |name|
    name[-1] == "="
  end
end

attributes() click to toggle source

Return hash of attributes and values.

# File lib/scrivener.rb, line 63
def attributes
  Hash.new.tap do |atts|
    _accessors.each do |accessor|
      att = accessor[0..-2].to_sym
      atts[att] = send(att)
    end
  end
end

slice(*keys) click to toggle source

# File lib/scrivener.rb, line 72
def slice(*keys)
  Hash.new.tap do |atts|
    keys.each do |att|
      atts[att] = send(att)
    end
  end
end