Class: ActiveScaffold::DataStructures::Actions
- Includes:
- Enumerable
- Defined in:
- lib/active_scaffold/data_structures/actions.rb
Instance Method Summary collapse
- #add(*args) ⇒ Object (also: #<<)
- #each ⇒ Object
- #exclude(*args) ⇒ Object
- #include?(val) ⇒ Boolean
-
#initialize(*args) ⇒ Actions
constructor
A new instance of Actions.
-
#swap(one, two) ⇒ Object
swaps one element in the list with the other.
Constructor Details
#initialize(*args) ⇒ Actions
Returns a new instance of Actions.
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# File 'lib/active_scaffold/data_structures/actions.rb', line 4 def initialize(*args) @set = [] self.add *args end |
Instance Method Details
#add(*args) ⇒ Object Also known as: <<
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# File 'lib/active_scaffold/data_structures/actions.rb', line 14 def add(*args) args.each { |arg| @set << arg.to_sym unless @set.include? arg.to_sym } end |
#each ⇒ Object
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# File 'lib/active_scaffold/data_structures/actions.rb', line 19 def each @set.each {|item| yield item} end |
#exclude(*args) ⇒ Object
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# File 'lib/active_scaffold/data_structures/actions.rb', line 9 def exclude(*args) args.collect! { |a| a.to_sym } # symbolize the args @set.reject! { |m| args.include? m } # reject all actions specified end |
#include?(val) ⇒ Boolean
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# File 'lib/active_scaffold/data_structures/actions.rb', line 23 def include?(val) super val.to_sym end |
#swap(one, two) ⇒ Object
swaps one element in the list with the other. accepts arguments in any order. it just figures out which one is in the list and which one is not.
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# File 'lib/active_scaffold/data_structures/actions.rb', line 29 def swap(one, two) if include? one exclude one add two else exclude two add one end end |