Sha256: 22e7c9daaea41eeefda378b2015168707e948ed08a4dde49429197388cb9e5fc
Contents?: true
Size: 1.73 KB
Versions: 9
Compression:
Stored size: 1.73 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
# CREDIT: Gavin Kistner (Phrogz)
def collate(other_hash)
h = Hash.new
# Prepare, ensuring every existing key is already an Array
each do |key, value|
if value.is_a?(Array)
h[key] = value
else
h[key] = [value]
end
end
# Collate with values from other_hash
other_hash.each do |key, value|
if h[key]
if value.is_a?(Array)
h[key].concat(value)
else
h[key] << value
end
elsif value.is_a?(Array)
h[key] = value
else
h[key] = [value]
end
end
#each{ |key, value| value.uniq! } if options[ :uniq ]
h
end
# The same as #collate, but modifies the receiver in place.
def collate!(other_hash)
result = self.collate(other_hash)
self.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
9 entries across 9 versions & 1 rubygems