Beautify JSON parsing with Hashie::Mash Rash? - ruby-on-rails

Question

Trying to parse some ugly JSON:
image = product.images.find { |i| i["sizeName"] == "Large" }
If I use Hashie::Mash Rash, can I make it look like this instead?
image = product.images.find { |i| i["size_name"] == "large" }
If so, why am I getting undefined method 'each_pair' for #<Array:0x007f84a0408540>? Please see https://gist.github.com/frankie-loves-jesus/6b8012f9197ca6c675a9 for a full example including a live app.
Example JSON:
{
"metadata": {
"category": {
"id": "women",
"name": "Women's Fashion"
},
"showSizeFilter": false,
"showColorFilter": true,
"offset": 0,
"limit": 20,
"total": 974184
},
"products": [
{
"id": 377083005,
"name": "BCBGeneration Women's Contrast Sleeve Trench",
"currency": "USD",
"price": 168,
"priceLabel": "$168.00",
"salePrice": 106.43,
"salePriceLabel": "$106.43",
"inStock": true,
"retailer": {
"id": "849",
"name": "Amazon.com",
"url": "http://www.shopstyle.com/browse/Amazon.com-US?pid=uid9616-726296-93"
},
"locale": "en_US",
"description": "This jacket features contrasting leather sleeves",
"brand": {
"id": "51",
"name": "BCBG MAX AZRIA",
"url": "http://www.shopstyle.com/browse/BCBG-MAX-AZRIA?pid=uid9616-726296-93"
},
"clickUrl": "http://api.shopstyle.com/action/apiVisitRetailer?id=377083005&pid=uid9616-726296-93",
"images": [
{
"sizeName": "Small",
"width": 32,
"height": 40,
"url": "http://resources.shopstyle.com/pim/7b/28/7b2894c203529b0956cdd6b760629d4a_small.jpg"
},
{
"sizeName": "Medium",
"width": 112,
"height": 140,
"url": "http://resources.shopstyle.com/pim/7b/28/7b2894c203529b0956cdd6b760629d4a_medium.jpg"
},
{
"sizeName": "Large",
"width": 164,
"height": 205,
"url": "http://resources.shopstyle.com/pim/7b/28/7b2894c203529b0956cdd6b760629d4a.jpg"
}
],
"colors": [
{
"name": "Chino"
}
],
"sizes": [
{
"name": "XX-Small"
},
{
"name": "X-Small"
}
],
"categories": [
{
"id": "raincoats-and-trenchcoats",
"name": "Raincoats & Trenchcoats"
}
]
}
]
}

Answer 1

This is my working code
require 'json'
require 'rash'
#json_text = <<END
{
"metadata": {
"category": {
"id": "women",
"name": "Women's Fashion"
},
"showSizeFilter": false,
"showColorFilter": true,
"offset": 0,
"limit": 20,
"total": 974184
},
"products": [
{
"id": 377083005,
"name": "BCBGeneration Women's Contrast Sleeve Trench",
"currency": "USD",
"price": 168,
"priceLabel": "$168.00",
"salePrice": 106.43,
"salePriceLabel": "$106.43",
"inStock": true,
"retailer": {
"id": "849",
"name": "Amazon.com",
"url": "http://www.shopstyle.com/browse/Amazon.com-US?pid=uid9616-726296-93"
},
"locale": "en_US",
"description": "This jacket features contrasting leather sleeves",
"brand": {
"id": "51",
"name": "BCBG MAX AZRIA",
"url": "http://www.shopstyle.com/browse/BCBG-MAX-AZRIA?pid=uid9616-726296-93"
},
"clickUrl": "http://api.shopstyle.com/action/apiVisitRetailer?id=377083005&pid=uid9616-726296-93",
"images": [
{
"sizeName": "Small",
"width": 32,
"height": 40,
"url": "http://resources.shopstyle.com/pim/7b/28/7b2894c203529b0956cdd6b760629d4a_small.jpg"
},
{
"sizeName": "Medium",
"width": 112,
"height": 140,
"url": "http://resources.shopstyle.com/pim/7b/28/7b2894c203529b0956cdd6b760629d4a_medium.jpg"
},
{
"sizeName": "Large",
"width": 164,
"height": 205,
"url": "http://resources.shopstyle.com/pim/7b/28/7b2894c203529b0956cdd6b760629d4a.jpg"
}
],
"colors": [
{
"name": "Chino"
}
],
"sizes": [
{
"name": "XX-Small"
},
{
"name": "X-Small"
}
],
"categories": [
{
"id": "raincoats-and-trenchcoats",
"name": "Raincoats & Trenchcoats"
}
]
}
]
}
END
hash = JSON.parse(#json_text)
#rash = Hashie::Rash.new( hash )
images = []
#rash.products.each do |product|
images << product.images.find { |i| i.size_name.downcase == "large" }
end
puts images.inspect
#[#<Hashie::Rash height=205 size_name="Large" url="http://resources.shopstyle.com/pim/7b/28/7b2894c203529b0956cdd6b760629d4a.jpg" width=164>]
It doesn't raise the error you have mentioned.
And I use
$ruby --version
ruby 2.0.0p247 (2013-06-27 revision 41674) [x86_64-darwin13.0.0]
gem list --local |grep 'rash'
rash (0.4.0)
$gem list --local |grep 'hashie'
hashie (3.2.0, 2.0.5)
Could you check yours?
And, if possible, dump the json at the moment that it raises the error.