Sha256: b3952cf09000c5aa317c8d1ded40b306ce612a7d19c2bdb67ab408c8a80c9862
Contents?: true
Size: 1.42 KB
Versions: 6
Compression:
Stored size: 1.42 KB
Contents
class Hash
# Merge the values of this hash with those from another, setting all values
# to be arrays representing the values from both hashes.
#
# { :a=>1, :b=>2 }.collate(:a=>3, :b=>4, :c=>5)
# #=> { :a=>[1,3], :b=>[2,4], :c=>[5] }
#
# CREDIT: Tilo Sloboda, Gavin Kistner (Phrogz)
def collate(other)
h = Hash.new
(keys + other.keys).each do |key|
h[key] = []
end
each do |key, value|
h[key] << value
end
other.each do |key, value|
h[key] << value
end
h.each{ |k,v| v.flatten! }
h
end
# The same as #collate, but modifies the receiver in place.
def collate!(other_hash)
result = collate(other_hash)
replace(result)
end
# Old version ...
#
# def collate!(other_hash)
# # Prepare, ensuring every existing key is already an Array
# each do |key, value|
# if value.is_a?(Array)
# self[key] = value
# else
# self[key] = [value]
# end
# end
# # Collate with values from other_hash
# other_hash.each do |key, value|
# if self[key]
# if value.is_a?(Array)
# self[key].concat( value )
# else
# self[key] << value
# end
# elsif value.is_a?(Array)
# self[key] = value
# else
# self[key] = [value]
# end
# end
# #each{ |key, value| value.uniq! } if options[ :uniq ]
# self
# end
end
Version data entries
6 entries across 5 versions & 1 rubygems