Class: Tabl::Column

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

Defined Under Namespace

Classes: FormatDsl

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, args = {}) {|_self| ... } ⇒ Column

Returns a new instance of Column.

Yields:

  • (_self)

Yield Parameters:

  • _self (Tabl::Column) —

    the object that the method was called on



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# File 'lib/tabl/column.rb', line 8

def initialize(name, args = {})
  @name = name
  @label = args[:label] || @name.to_s.titleize
  @value = args[:value] || lambda { |record| record.send(@name) }
  @formats = {}
  @format_dsl = FormatDsl.new(self)

  yield self if block_given?
end

Instance Attribute Details

#formats ⇒ Object (readonly)

Returns the value of attribute formats.



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# File 'lib/tabl/column.rb', line 6

def formats
  @formats
end

#label ⇒ Object

Returns the value of attribute label.



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# File 'lib/tabl/column.rb', line 4

def label
  @label
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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

def name
  @name
end

#value(record) ⇒ Object 



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# File 'lib/tabl/column.rb', line 18

def value(record)
  @value.call(record)
end

Instance Method Details

#format(key = nil, value = nil, record = nil, context = nil) ⇒ Object 



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# File 'lib/tabl/column.rb', line 22

def format(key = nil, value = nil, record = nil, context = nil)
  if key.nil?
    return @format_dsl
  else
    format = @formats[key]
    return format unless value
    if (context)
      if (format.arity == 1)
        context.instance_exec(value, &format)
      else
        context.instance_exec(value, record, &format)
      end
    else
      if (format.arity == 1)
        return format.call(value)
      else
        return format.call(value, record)
      end
    end
  end
end