Class: Mongar::Column

Inherits:
Object
  • Object
show all
Defined in:
lib/mongar/column.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(args = {}) ⇒ Column

Returns a new instance of Column.



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# File 'lib/mongar/column.rb', line 5

def initialize(args = {})
  self.name = args[:name]
  self.transformation = nil
  self.is_indexed = false
  self.is_primary_index = false
end

Instance Attribute Details

#is_indexed ⇒ Object

Returns the value of attribute is_indexed.



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# File 'lib/mongar/column.rb', line 3

def is_indexed
  @is_indexed
end

#is_primary_index ⇒ Object

Returns the value of attribute is_primary_index.



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# File 'lib/mongar/column.rb', line 3

def is_primary_index
  @is_primary_index
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/mongar/column.rb', line 3

def name
  @name
end

#transformation ⇒ Object

Returns the value of attribute transformation.



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# File 'lib/mongar/column.rb', line 3

def transformation
  @transformation
end

Instance Method Details

#index ⇒ Object 



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# File 'lib/mongar/column.rb', line 26

def index
  self.is_indexed = true
end

#indexed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongar/column.rb', line 34

def indexed?
  self.is_indexed
end

#primary_index ⇒ Object 



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# File 'lib/mongar/column.rb', line 30

def primary_index
  self.is_primary_index = true
end

#primary_index? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mongar/column.rb', line 38

def primary_index?
  self.is_primary_index
end

#transform(proc_name = nil, &block) ⇒ Object 



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# File 'lib/mongar/column.rb', line 12

def transform(proc_name = nil, &block)
  self.transformation = lambda do
    result = self
    result = instance_exec(result, &block) if block_given?
    result = result.send(proc_name) if proc_name
    result
  end
end

#transform_this(object) ⇒ Object 



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# File 'lib/mongar/column.rb', line 21

def transform_this(object)
  return object unless transformation && transformation.is_a?(Proc)
  object.instance_exec(&transformation)
end