Class: Sheetah::Specification

Inherits:
Object
  • Object
show all
Defined in:
lib/sheetah/specification.rb

Defined Under Namespace

Classes: DuplicatedPatternError, InvalidPatternError, MutablePatternError

Instance Method Summary collapse

Constructor Details

#initialize(ignore_unspecified_columns: false) ⇒ Specification

Returns a new instance of Specification.



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# File 'lib/sheetah/specification.rb', line 16

def initialize(ignore_unspecified_columns: false)
  @column_by_pattern = {}
  @ignore_unspecified_columns = ignore_unspecified_columns
end

Instance Method Details

#freeze ⇒ Object 



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# File 'lib/sheetah/specification.rb', line 59

def freeze
  @column_by_pattern.freeze
  super
end

#get(header) ⇒ Object 



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# File 'lib/sheetah/specification.rb', line 37

def get(header)
  return if header.nil?

  @column_by_pattern.each do |pattern, column|
    return column if pattern === header # rubocop:disable Style/CaseEquality
  end

  nil
end

#ignore_unspecified_columns? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sheetah/specification.rb', line 55

def ignore_unspecified_columns?
  @ignore_unspecified_columns
end

#optional_columns ⇒ Object 



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# File 'lib/sheetah/specification.rb', line 51

def optional_columns
  @column_by_pattern.each_value.reject(&:required?)
end

#required_columns ⇒ Object 



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# File 'lib/sheetah/specification.rb', line 47

def required_columns
  @column_by_pattern.each_value.select(&:required?)
end

#set(pattern, column) ⇒ Object 



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# File 'lib/sheetah/specification.rb', line 21

def set(pattern, column)
  if pattern.nil?
    raise InvalidPatternError, pattern.inspect
  end

  unless pattern.frozen?
    raise MutablePatternError, pattern.inspect
  end

  if @column_by_pattern.key?(pattern)
    raise DuplicatedPatternError, pattern.inspect
  end

  @column_by_pattern[pattern] = column
end