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acp2
Code Samples
Contact Class:
Add to require address class:
require './address'
Our initialize method now looks like this:
class Contact
attr_writer :first_name, :middle_name, :last_name
attr_reader :phone_numbers, :addresses
def initialize
@phone_numbers = []
@addresses = []
end
Here's our add_address method:
def add_address(kind, street_1, street_2, city, state, postal_code)
address = Address.new
address.kind = kind
address.street_1 = street_1
address.street_2 = street_2
address.city = city
address.state = state
address.postal_code = postal_code
addresses.push(address)
end
And we can print them as well:
def print_addresses
puts "Addresses"
addresses.each { |address| puts address.to_s('short') }
end
Then call it as follows:
jason = Contact.new
jason.first_name = "Jason"
jason.last_name = "Seifer"
jason.add_phone_number("Home", "123-456-7890")
jason.add_phone_number("Work", "456-789-0123")
jason.add_address("Home", "123 Main St.", "", "Portland", "OR", "12345")
puts jason.to_s('full_name')
jason.print_phone_numbers
jason.print_addresses
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OK, so with our address class all set up,
0:00
we can now make our contacts
have many addresses.
0:03
So just like before, we're going to
need to require the address class.
0:07
And now we can add an attribute reader for
addresses as well.
0:12
And then, once again,
0:21
we need to set this to an empty array
when we initialize the contact class.
0:23
So we have our add phone number method.
0:31
Our add address method is
going to be very similar.
0:34
We're gonna take the attributes
of the address and
0:39
do kind street_1, street_2, city, state,
0:44
postal code, and
then we will initialize a new instance
0:49
of the address class like we
did with phone number above.
0:54
And now we can set all of the attributes
to the arguments to this method.
1:05
And then just like before,
1:28
we want to append this to
the internal array of addresses.
1:30
And since addresses is
an attribute reader,
1:40
we don't have to use the at sign to
address it as an instance variable.
1:43
And so now the last thing that we will do
here is we can print out phone numbers.
1:52
Let's go ahead and
print addresses as well.
1:56
And this will print out
the contact addresses.
2:05
We'll say addresses.
2:10
Again this is referencing
the instance variable,
2:11
which we have an attribute reader for.
2:14
And for each one of those,
we'll print out the address
2:17
as a string, and
we'll use the short version.
2:23
So once we have that.
2:31
We'll use our test and add an address.
2:35
Home, 123 Main Street.
2:41
There's no line two of that street.
2:43
And that's in Portland.
2:48
With that zip code.
2:51
So, we've got the add_address method
being called, sending an address and
2:53
let's go ahead and
print out the addresses as well.
2:57
Now let's go ahead and run this
contact file and see what happens.
3:04
Okay.
3:10
Here's Jason Seifer.
3:11
Here's the phone numbers and
here's the addresses.
3:12
But what is all this?
3:15
This is what was in the address file.
3:18
This code is getting run
3:21
when we require it up here on
line two of our contact file.
3:24
So now that we know this works,
we can get this out of here and save that.
3:29
Then clear my screen and run this again
and this works just like we expect it to.
3:37
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