I currently have:
@teams ||= {}
@teams[date] ||= {}
@teams[date][team] ||= {}
@teams[date][team][raw_address] ||= {}
@teams[date][team][raw_address]['address'] = address
@teams[date][team][raw_address]['orders'] ||= {}
@teams[date][team][raw_address]['orders'][order.id] = order
Is it possible to "remove" the lines containing ||= {}? I just want to have something like:
@teams[date][team][raw_address]['address'] = address
@teams[date][team][raw_address]['orders'][order.id] = order
You might know that in Ruby, hashes can have default values.
So when initially creating the @team hash, you could set a default value of e.g. empty hash:
@team = Hash.new { |h, k| h[k] = Hash.new }
Which gives you:
@team[:foo] #=> {}
And the ability to set values in those dynamically created hashes, e.g.:
@team[:foo][:bar] = 123
@team[:foo][:baz] = 456
@team
#=> {
# :foo => {
# :bar => 123,
# :baz => 456
# }
# }
But that only works for the first level. To get a hash that can be nested indefinitely, you have to pass along the outer hash's default_proc to the inner hash:
@team = Hash.new { |h, k| h[k] = Hash.new(&h.default_proc) }
Doing so allows you to create deeply nested hashes by just assigning the last element, e.g.:
@team[:foo][:bar][:baz] = 123
@team[:foo][:bar][:qux][:quux] = 456
@team
#=> {
# :foo=> {
# :bar => {
# :baz => 123,
# :qux => {
# :quux => 456
# }
# }
# }
# }