Class: Stacks::Items::ColumnDependentBlock

Inherits:
Object
  • Object
show all
Defined in:
lib/stacks/items/column_dependent_block.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(model, columns, identifier, proc) ⇒ ColumnDependentBlock

Returns a new instance of ColumnDependentBlock.



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# File 'lib/stacks/items/column_dependent_block.rb', line 5

def initialize(model, columns, identifier, proc)
  @model = model
  @columns = columns.sort!
  @columns = @columns.map { |c| c.to_s }
  @identifier = identifier
  @proc = proc
end

Instance Attribute Details

#model ⇒ Object

Returns the value of attribute model.



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# File 'lib/stacks/items/column_dependent_block.rb', line 3

def model
  @model
end

Class Method Details

.key_to_columns(key) ⇒ Object 



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# File 'lib/stacks/items/column_dependent_block.rb', line 17

def self.key_to_columns(key)
  all_keys = key.split(Stacks::key_separator)

  # The identifier takes the first slot
  all_keys.shift
  all_keys
end

Instance Method Details

#key ⇒ Object 



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# File 'lib/stacks/items/column_dependent_block.rb', line 13

def key
  @key ||= [@identifier].concat(@columns).join(Stacks::key_separator)
end

#value ⇒ Object 



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# File 'lib/stacks/items/column_dependent_block.rb', line 25

def value
  @proc.call
end