Class: Flapjack::Diner::IndexRange

Inherits:
Object
  • Object
show all
Defined in:
lib/flapjack-diner/index_range.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(start, finish, opts = {}) ⇒ IndexRange

Returns a new instance of IndexRange.



9
10
11
12
13
14
15
16
17
18
19
20
21
22
 
# File 'lib/flapjack-diner/index_range.rb', line 9

def initialize(start, finish, opts = {})
  value_types = [Float, Date, Time, DateTime]
  [start, finish].each do |v|
    raise "Values must be #{value_types.join('/')}" unless v.nil? || value_types.any? {|vt| v.is_a?(vt)}
  end
  if !start.nil? && !finish.nil? && (start > finish)
    raise "Start of range must be <= finish"
  end
  if start.nil? && finish.nil?
    raise "Range must be bounded on at least one side"
  end
  @start  = start
  @finish = finish
end

Instance Attribute Details

#finish ⇒ Object (readonly)

Returns the value of attribute finish.



7
8
9
 
# File 'lib/flapjack-diner/index_range.rb', line 7

def finish
  @finish
end

#start ⇒ Object (readonly)

Returns the value of attribute start.



7
8
9
 
# File 'lib/flapjack-diner/index_range.rb', line 7

def start
  @start
end

Instance Method Details

#to_s ⇒ Object

NB



25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
 
# File 'lib/flapjack-diner/index_range.rb', line 25

def to_s
  start_s = case @start
  when Date, Time, DateTime
    @start.iso8601
  else
    @start.to_s
  end
  finish_s = case @finish
  when Date, Time, DateTime
    @finish.iso8601
  else
    @finish.to_s
  end
  "#{start_s}..#{finish_s}"
end