Looping through hash and sub-hash

Rails
1

Need a little push in the right direction.

@prices = [
“amazon_new” => [
“image” => “imageurl.com”,
“url” => “bookurl.com”,
“price” => 45.55
],

“amazon_used” => [
“image” => “2ndImageUrl.com”,
“url” => “2ndbookurl.com”,
“price” => 67.45
]
]

@prices.each do |p|
p.each do |x|
x[“image”]
# Can’t convert string into integer.
end
end

2

On Thu, Jun 20, 2013 at 10:30 AM, Patrick Curl
[email protected]wrote:

"url" => "2ndbookurl.com",
"price" => 67.45

]
]

@prices.each do |p|
p.each do |x|
x[“image”]
# Can’t convert string into integer.

You get this error when you try to access an array as a hash. ie

array = (1…4).to_a
array[‘image’] # can’t convert string into integer

try to look again at how @prices is declared. judging from the code
you pasted, you want @prices to be a hash but it’s using square braces.

https://groups.google.com/d/msgid/rubyonrails-talk/d2d1f766-1af9-40a5-9d66-45b34037e5b0%40googlegroups.com

.
For more options, visit https://groups.google.com/groups/opt_out.

–

3

You are mixing up arrays and hashes. Below is an all hash example.

@prices = {
“amazon_new” => {
“image” => “imageurl.com”,
“url” => “bookurl.com”,
“price” => 45.55
},
“amazon_used” => {
“image” => “2ndImageUrl.com”,
“url” => “2ndbookurl.com”,
“price” => 67.45
}
}

@prices.each_pair do |type, data|
puts “#{type} : #{data[‘image’]}”
end

and here is an array / hash example

@prices = [
{
“image” => “imageurl.com”,
“url” => “bookurl.com”,
“price” => 45.55
},
{
“image” => “2ndImageUrl.com”,
“url” => “2ndbookurl.com”,
“price” => 67.45
}
]

@prices.each do |data|
puts data[‘image’]
end