capi
#1
Hi all,
I’m sure that there is somewhere an explanation on how this works but I
can’t find it by myself.
I need to have a hash like this one:
{“name”:“Admiral Ackbar”},{“name”:“Bail Organa”}
so I need a hash with hashes inside.
If I make
myhash.merge ({“name” => “Bail Organa”})
all I get it’s just the last pair, since it’s updating it everytime.
How can I have a hash like the first one?
I’m sure someone had this problem before.
Thanks in advance.
Regards,
Antonio
capi
#2
Firstly hash notation is {“name” => “Admiral Ackbar”} and not
{“name”:“Admiral Ackbar”} (are you thinking about PHP or Python by
chance?)
To be honest it looks more like you need an Array of hashes.
data = Array.new
data << {“name” => “Admiral Ackbar”}
data << {“name” => “Bail Organa”}
puts data.inspect
=> [{“name”=>“Admiral Ackbar”}, {“name”=>“Bail Organa”}]
capi
#3
Hi Peter
You have to do something like this:
hash = {}
hash[:name] = ‘Senyi’
array = []
array << hash
hash2 = {}
hash2[:name] = ‘Peter’
array << hash2
=> [{:name=>“Senyi”}, {:name=>“Peter”}]
I hope it helps you
Senyi
capi
#4
Antonio Fernández vara wrote:
I need to have a hash like this one:
{“name”:“Admiral Ackbar”},{“name”:“Bail Organa”}
Why a hash? If it only contains names, then why not
names = [“Admiral Ackbar”, “Bail Organa”]
Or so you want a hash with multiple values for one key:
{“name”=>[“Admiral Ackbar”,“Bail Organa”]}
myhash = Hash.new { |h,k| h[k] = [] }
myhash[“name”] << “Admiral Ackbar”
myhash[“name”] << “Bail Organa”
Otherwise, as others have suggested, an array of hashes:
[{“name”=>“Admiral Ackbar”,“age”=>30},
{“name”=>“Bail Organa”,“age”=>65}]
Or choose some attribute as a key, like id
{ 1 => {“name”=>“Admiral Ackbar”,“age”=>30},
2 => {“name”=>“Bail Organa”,“age”=>65}}
capi
#5
Le 01 septembre à 17:43, Peter H. a écrit :
data = Array.new
data << {“name” => “Admiral Ackbar”}
data << {“name” => “Bail Organa”}
C’mon, where’s the fun in that ? 
require “ostruct”
=> true
a = []
=> []
a << OpenStruct.new(:name => “Admiral Ackbar”, :age => 30)
=> [#<OpenStruct name=“Admiral Ackbar”, age=30>]
a << OpenStruct.new(:name => “Bail Organa”, :age => 65)
=> [#<OpenStruct name=“Admiral Ackbar”, age=30>, #<OpenStruct name=“Bail
Organa”, age=65>]
a[0].name
=> “Admiral Ackbar”
a[1].age
=> 65
a.find { |e| e.age > 50 }
=> #<OpenStruct name=“Bail Organa”, age=65>
Fred