Class: Megam::DiscountsCollection

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/megam/core/discounts_collection.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DiscountsCollection

Returns a new instance of DiscountsCollection.



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# File 'lib/megam/core/discounts_collection.rb', line 21

def initialize
  @discounts = Array.new
  @discounts_by_name = Hash.new
  @insert_after_idx = nil
end

Instance Attribute Details

#iterator ⇒ Object (readonly)

Returns the value of attribute iterator.



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# File 'lib/megam/core/discounts_collection.rb', line 20

def iterator
  @iterator
end

Class Method Details

.json_create(o) ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 139

def self.json_create(o)
  collection = self.new()
  o["results"].each do |discounts_list|
    discounts_array = discounts_list.kind_of?(Array) ? discounts_list : [ discounts_list ]
    discounts_array.each do |discounts|
      collection.insert(discounts)
    end
  end
  collection
end

Instance Method Details

#<<(*args) ⇒ Object Also known as: push 



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# File 'lib/megam/core/discounts_collection.rb', line 41

def <<(*args)
  args.flatten.each do |a|
    is_megam_discounts(a)
    @discounts << a
    @discounts_by_name[a.code] =@discounts.length - 1
  end
  self
end

#[](index) ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 31

def [](index)
  @discounts[index]
end

#[]=(index, arg) ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 35

def []=(index, arg)
  is_megam_discounts(arg)
  @discounts[index] = arg
  @discounts_by_name[arg.code] = index
end

#all_discounts ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 27

def all_discounts
  @discounts
end

#each ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 72

def each
  @discounts.each do |discounts|
    yield discounts
  end
end

#each_index ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 78

def each_index
  @discounts.each_index do |i|
    yield i
  end
end

#empty? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/megam/core/discounts_collection.rb', line 84

def empty?
  @discounts.empty?
end

#insert(discounts) ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 53

def insert(discounts)
  is_megam_discounts(discounts)
  if @insert_after_idx
    # in the middle of executing a run, so any discounts inserted now should
    # be placed after the most recent addition done by the currently executing
    # discounts
    @discounts.insert(@insert_after_idx + 1, discounts)
    # update name -> location mappings and register new discounts
    @discounts_by_name.each_key do |key|
    @discounts_by_name[key] += 1 if@discounts_by_name[key] > @insert_after_idx
    end
    @discounts_by_name[discounts.code] = @insert_after_idx + 1
    @insert_after_idx += 1
  else
  @discounts << discounts
  @discounts_by_name[discounts.code] =@discounts.length - 1
  end
end

#lookup(discounts) ⇒ Object 



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# File 'lib/megam/core/discounts_collection.rb', line 88

def lookup(discounts)
  lookup_by = nil
  if discounts.kind_of?(Megam::Discounts)
  lookup_by = discounts.code
  elsif discounts.kind_of?(String)
  lookup_by = discounts
  else
    raise ArgumentError, "Must pass a Megam::discounts or String to lookup"
  end
  res =@discounts_by_name[lookup_by]
  unless res
    raise ArgumentError, "Cannot find a discounts matching #{lookup_by} (did you define it first?)"
  end
  @discounts[res]
end

#lookup_p(discounts) ⇒ Object

THIS RETURNS NIL WHEN A PARTICULAR PROMO TYPE IS NOT PRESENT - DID NOT DISTURB THE ACTUAL LOOKUP



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# File 'lib/megam/core/discounts_collection.rb', line 106

def lookup_p(discounts)
  lookup_by = nil
  if discounts.kind_of?(Megam::Discounts)
  lookup_by = discounts.code
  elsif discounts.kind_of?(String)
  lookup_by = discounts
  else
    raise ArgumentError, "Must pass a Megam::discounts or String to lookup"
  end
  res =@discounts_by_name[lookup_by]
  unless res
      return nil
   end
  @discounts[res]
end

#to_hash ⇒ Object

Transform the ruby obj -> to a Hash



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# File 'lib/megam/core/discounts_collection.rb', line 125

def to_hash
  index_hash = Hash.new
  self.each do |discounts|
    index_hash[discounts.code] = discounts.to_s
  end
  index_hash
end

#to_json(*a) ⇒ Object

Serialize this object as a hash: called from JsonCompat. Verify if this called from JsonCompat during testing.



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# File 'lib/megam/core/discounts_collection.rb', line 135

def to_json(*a)
  for_json.to_json(*a)
end