Multiple values for the same key in a Hash

ruby-talk
1

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/.

2

Dominic Son 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.

3

Dominic Son 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.

···

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

4

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=>#<struct Entry price=nil, quantity=nil, name="bar">,
  :foo=>#<struct Entry price=10, quantity=nil, name="foo">}
=> nil

  robert

···

On 12.10.2006 20:22, Dominic Son wrote:

5

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 Head wrote:

···

Dominic Son 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.

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

6

Robert Klemme wrote:

···

On 12.10.2006 20:22, Dominic Son 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