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core_ext.rb
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core_ext.rb
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class Hash
# Merges self with another hash, recursively.
#
# This code was lovingly stolen from some random gem:
# http://gemjack.com/gems/tartan-0.1.1/classes/Hash.html
#
# Thanks to whoever made it.
def deep_merge(hash)
target = dup
hash.keys.each do |key|
if hash[key].is_a? Hash and self[key].is_a? Hash
target[key] = target[key].deep_merge(hash[key])
next
end
target[key] = hash[key]
end
target
end
# Read array from the supplied hash favouring the singular key
# and then the plural key, and handling any nil entries.
# +hash+ the hash to read from
# +singular_key+ the singular key
# +plural_key+ the singular key
#
# Returns an array
def pluralized_array(singular_key, plural_key)
hash = self
if hash.has_key?(singular_key)
array = [hash[singular_key]] if hash[singular_key]
elsif hash.has_key?(plural_key)
case hash[plural_key]
when String
array = hash[plural_key].split
when Array
array = hash[plural_key].compact
end
end
array || []
end
end
# Thanks, ActiveSupport!
class Date
# Converts datetime to an appropriate format for use in XML
def xmlschema
strftime("%Y-%m-%dT%H:%M:%S%Z")
end if RUBY_VERSION < '1.9'
end