CODEWITHSUNDEEP
ruby-on-railsrubynokogiri
user4273621
user4273621

Reputation:

Outputting Nokogiri scraped data to webpage

I'm currently trying to scrape data using Nokogiri from a webpage. So far, I have been able to successfully scrape title and price information using this code in the controller:

@items = doc.xpath("//div[contains(@class, 'name')]/a").collect {|node| node.text.strip}
@prices = doc.xpath("//div[contains(@class, 'price')]/span[contains(@class, 'price-new')]").collect {|node| node.text.strip}

and this code in the view:

<% @items.zip(@prices).each do |title,price| %>
<%= title+"  "+price%>
<% end %>

But this code for images won't work. (Note that I'm trying to scrape the <img> tag):

@images = doc.xpath("//div[contains(@class, 'image')]/a/img").collect

Anything I try to write into the view .erb just comes back with a syntax error. Any idea what I'm missing or should be using in the .erb?

Upvotes: 1

Views: 147

Answers (1)

Dave Slutzkin
Dave Slutzkin

Reputation: 1622

Is there a typo there? This:

@images = doc.xpath("//div[contains(@class, 'image')]/a/img").collect

Will just return an Enumerator. If that's not a typo then the answer would be that you need to pass a block to collect, maybe:

@images = doc.xpath("//div[contains(@class, 'image')]/a/img").collect { |element| element.attribute("src") }

It's not clear what you're doing next with @images but this would get you the URLs of each image so you can display them yourself.

Upvotes: 1

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