neophyteScripter
asked on
Attaching array to existing Ruby method
Neophyte has another question. I understand arrays and there purpose and am able to work with arrays adding and deleting information using the irb and prompt through the Mac terminal. What I am trying to do is connect an array to an existing ruby file that already has the class established and is producing the results. Basically, I would like to be able to push new objects through the method using an array.
# NewDeviceClass
#device
#nickname : old home pc
# status : active
# type : windows_pc
class NewDevice
attr_accessor :device_name
attr_accessor :device_status
attr_accessor :device_type
def output
puts "This device has a nickname of #{device_name}, type of #{device_type}, and is #{device_status}."
end
end
if __FILE__ == $0
dn = NewDevice.new
dn.device_name = "new device"
dn.device_status = "active"
dn.device_type = "windows pos"
dn.output
a = ["device_type1", "device_type2"]
end
There are a lot of options if you want to loop. I use Array#each a lot -- it is able to handle iteration on the collection most simply.
# Call whatever you use to get the array of NewDevice objects.
new_devices = NewDevice.find(:all)
# Perform a block on each member of the collection.
# new_device becomes the current member of the collection.
new_devices.each do |new_device|
new_device.output
# ... maybe other code you want to execute
end
# Alternatively, you can pass a reference to the object method to be called.
new_devices.each(&:output)
# You can also do everything straight away.
NewDevice.find(:all).each(&:output)ASKER
can you go into more detail, pretend i have no clue what you are talking about. Thanks
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