Class: Turrialba::Base

Inherits:
Object
  • Object
show all
Includes:
Memoizable
Defined in:
lib/turrialba/base.rb

Direct Known Subclasses

Tweet, User

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(attrs = {}) ⇒ Twitter::Base

Initializes a new object

Parameters:

  • attrs (Hash) (defaults to: {}) 


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# File 'lib/turrialba/base.rb', line 71

def initialize(attrs = {})
  @attrs = attrs || {}
end

Instance Attribute Details

#attrs ⇒ Hash Also known as: to_h

Returns:

  • (Hash) 


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# File 'lib/turrialba/base.rb', line 8

def attrs
  @attrs
end

Class Method Details

.attr_reader(*attrs) ⇒ Object

Define methods that retrieve the value from attributes

Parameters:

  • attrs (Array, Symbol) 


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# File 'lib/turrialba/base.rb', line 16

def attr_reader(*attrs)
  attrs.each do |attr|
    define_attribute_method(attr.to_s)
    define_predicate_method(attr.to_s)
  end
end

.define_attribute_method(key1, klass = nil, key2 = nil) ⇒ Object

Dynamically define a method for an attribute

Parameters:

  • key1 (Symbol)
  • klass (Symbol) (defaults to: nil)
  • key2 (Symbol) (defaults to: nil) 


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# File 'lib/turrialba/base.rb', line 44

def define_attribute_method(key1, klass = nil, key2 = nil)
  define_method(key1) do
    if attr_falsey_or_empty?(key1)
      NullObject.new
    else
      klass.nil? ? @attrs[key1] : Twitter.const_get(klass).new(attrs_for_object(key1, key2))
    end
  end
  memoize(key1)
end

.define_predicate_method(key1, key2 = key1) ⇒ Object

Dynamically define a predicate method for an attribute

Parameters:

  • key1 (Symbol)
  • key2 (Symbol) (defaults to: key1) 


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# File 'lib/turrialba/base.rb', line 59

def define_predicate_method(key1, key2 = key1)
  define_method(:"#{key1}?") do
    !attr_falsey_or_empty?(key2)
  end
  memoize(:"#{key1}?")
end

.object_attr_reader(klass, key1, key2 = nil) ⇒ Object

Define object methods from attributes

Parameters:

  • klass (Symbol)
  • key1 (Symbol)
  • key2 (Symbol) (defaults to: nil) 


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# File 'lib/turrialba/base.rb', line 34

def object_attr_reader(klass, key1, key2 = nil)
  define_attribute_method(key1, klass, key2)
  define_predicate_method(key1)
end

.predicate_attr_reader(*attrs) ⇒ Object 



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# File 'lib/turrialba/base.rb', line 23

def predicate_attr_reader(*attrs)
  attrs.each do |attr|
    define_predicate_method(attr)
  end
end