Multiple values for the same key in a Hash

Hi. There’s got to be an easy way to do this.

I simply want multiple iteams (etc, price, quantity, and name) appended
to a key…

There’s got to be a simple way (…right?)

Dominic S. wrote:

Hi. There’s got to be an easy way to do this.

I simply want multiple iteams (etc, price, quantity, and name) appended
to a key…

There’s got to be a simple way (…right?)

Uh… Wouldn’t a hash of hashes do the trick?

For example,
my_hash[:key][:price] = 1.99
my_hash[:key][:quantity] = 5

or

my_hash[:key] = { :price => 1.99, :quantity => 5 }

or whatever the syntax is.

Yes, i was thinking your later suggestion, but how do i iterate through
them…

the price, and quanity come back too containated (ie : 1.995 ) do i have
to mess with a .split and reg exp at this point? please say it isn’t so!

Robert H. wrote:

Dominic S. wrote:

Hi. There’s got to be an easy way to do this.

I simply want multiple iteams (etc, price, quantity, and name) appended
to a key…

There’s got to be a simple way (…right?)

Uh… Wouldn’t a hash of hashes do the trick?

For example,
my_hash[:key][:price] = 1.99
my_hash[:key][:quantity] = 5

or

my_hash[:key] = { :price => 1.99, :quantity => 5 }

or whatever the syntax is.

Dominic S. wrote:

Hi. There’s got to be an easy way to do this.

I simply want multiple iteams (etc, price, quantity, and name) appended
to a key…

There’s got to be a simple way (…right?)


Posted via http://www.ruby-forum.com/.

Just add the items as an array or another container object.

On 12.10.2006 20:22, Dominic S. wrote:

Hi. There’s got to be an easy way to do this.

I simply want multiple iteams (etc, price, quantity, and name) appended
to a key…

There’s got to be a simple way (…right?)

Like this?

11:09:28 [~]: irbs
require ‘pp’
=> true

Entry = Struct.new(:price, :quantity, :name)
=> Entry

h = Hash.new {|h,k| h[k] = Entry.new}
=> {}

h[:foo].price = 10
=> 10

h[:bar].name = “bar”
=> “bar”

h[:foo].name = “foo”
=> “foo”

pp h
{:bar=>#,
:foo=>#}
=> nil

robert

Robert K. wrote:

On 12.10.2006 20:22, Dominic S. wrote:

Hi. There’s got to be an easy way to do this.

I simply want multiple iteams (etc, price, quantity, and name)
appended to a key…

There’s got to be a simple way (…right?)

Like this?

PS: Alternatively you can use OpenStruct.

robert

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