Module: MergeFilter

Defined in:
lib/merge_filter.rb,
lib/merge_filter/version.rb,
lib/merge_filter/undefined_filter.rb

Defined Under Namespace

Modules: ClassMethods Classes: UndefinedFilter

Constant Summary collapse

VERSION = 
"0.0.2"

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#filter ⇒ Object (readonly)

Returns the value of attribute filter.



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# File 'lib/merge_filter.rb', line 5

def filter
  @filter
end

Class Method Details

.included(base) ⇒ Object 



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# File 'lib/merge_filter.rb', line 7

def self.included base
  base.extend ClassMethods
end

Instance Method Details

#initialize(filter = {}) ⇒ Object 



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# File 'lib/merge_filter.rb', line 33

def initialize filter = {}
  @filter = filter
end

#records ⇒ Object 



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# File 'lib/merge_filter.rb', line 37

def records
  filter.inject(default_scope) do |scope, (key, value)|
    if respond_to?(key)
      scope.merge(__send__(key, value))
    else
      raise MergeFilter::UndefinedFilter, "There is no filter_by definition for #{key}."
    end
  end
end