Class: Simple::Printer::Field

Inherits:
Object
  • Object
show all
Defined in:
lib/simple-printer.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(params = {}) ⇒ Field

Returns a new instance of Field.



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# File 'lib/simple-printer.rb', line 83

def initialize(params={})
  params.each { |k, v| send("#{k}=", v) }
end

Instance Attribute Details

#children ⇒ Object

Returns the value of attribute children.



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# File 'lib/simple-printer.rb', line 45

def children
  @children
end

#key ⇒ Object

Returns the value of attribute key.



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# File 'lib/simple-printer.rb', line 42

def key
  @key
end

#label ⇒ Object

Returns the value of attribute label.



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# File 'lib/simple-printer.rb', line 43

def label
  @label
end

#value ⇒ Object

Returns the value of attribute value.



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# File 'lib/simple-printer.rb', line 44

def value
  @value
end

Class Method Details

.make(spec:, object: nil) ⇒ Object 



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# File 'lib/simple-printer.rb', line 47

def self.make(spec:, object: nil)
  return spec if spec.kind_of?(Field)
  Field.new.tap do |field|
    case spec
    when Symbol
      field.key = spec
    when Array
      spec = spec.dup
      field.key = spec.shift if spec.first.kind_of?(Symbol)
      field.label = spec.shift if spec.first.kind_of?(String)
      case (v = spec.shift)
      when Array
        field.children = v
      else
        field.value = v
      end
    when Hash
      field.key, field.label, field.value, field.children = spec[:key], spec[:label], spec[:value], spec[:children]
    else
      raise "Unknown field specification: #{spec.inspect}"
    end
    if field.key
      field.label ||= field.key.to_s.tr('_', ' ').capitalize
      if field.value.nil?
        raise "No object specified" unless object
        v = object.send(field.key)
        if v.kind_of?(Array)
          field.children = v
        else
          field.value = v
        end
      end
    end
  end
end