Hello,
I need to add key and value pairs to a hash dynamically. I want to do this:
array = []
array << "hello"
array << "world"
But with k v pairs of a hash. The hash is being populated from a
database and there is a potenitally unlimited (though realistically
limited to less than 20) number of differnet keys, which my program
will not know about until it talks to the database.
Can I dynamically create a hash something like this:
dbh.query("select k, v from foo where id = #{id}").each_hash do |kv|
k = kv['k']
v = kv['v']
myhash << k,v
end
return myhash
Thanks for the help!
Hello,
I need to add key and value pairs to a hash dynamically. I want to do this:
array =
array << "hello"
array << "world"
But with k v pairs of a hash. The hash is being populated from a
database and there is a potenitally unlimited (though realistically
limited to less than 20) number of differnet keys, which my program
will not know about until it talks to the database.
Can I dynamically create a hash something like this:
dbh.query("select k, v from foo where id = #{id}").each_hash do |kv|
k = kv['k']
v = kv['v']
myhash << k,v
Why not just
myhash[k] = v
···
On 2/2/07, Nick Black <nickblack1@gmail.com> wrote:
end
return myhash
Figured it out - its simple as always:
yourhash['key'] = value
adds to the hash (just like the book says)
···
On 2/2/07, Nick Black <nickblack1@gmail.com> wrote:
Hello,
I need to add key and value pairs to a hash dynamically. I want to do this:
array =
array << "hello"
array << "world"
But with k v pairs of a hash. The hash is being populated from a
database and there is a potenitally unlimited (though realistically
limited to less than 20) number of differnet keys, which my program
will not know about until it talks to the database.
Can I dynamically create a hash something like this:
dbh.query("select k, v from foo where id = #{id}").each_hash do |kv|
k = kv['k']
v = kv['v']
myhash << k,v
end
return myhash
Thanks for the help!
--
Nick Black
--------------------------------
http://www.blacksworld.net