How do I use instance variables initialized in my initialize method in other methods? - ruby

Question

This is what my class looks like:
require 'oga'
require 'net/http'
require 'pry'
module YPCrawler
class PageCrawler
def initialize(url)
#url = 'http://www.someurl.com'
end
def get_page_listings
body = Net::HTTP.get(URI.parse(#url))
document = Oga.parse_html(body)
bizlistings = document.css('div.result')
binding.pry
end
end
end
Yet when I get thrown into pry, I see this:
[1] pry(YPCrawler::PageCrawler)> #url
=> nil
[2] pry(YPCrawler::PageCrawler)> body
NameError: undefined local variable or method `body' for YPCrawler::PageCrawler:Class
from (pry):2:in `<class:PageCrawler>'
[3] pry(YPCrawler::PageCrawler)> document
NameError: undefined local variable or method `document' for YPCrawler::PageCrawler:Class
from (pry):3:in `<class:PageCrawler>'
[4] pry(YPCrawler::PageCrawler)> bizlistings
NameError: undefined local variable or method `bizlistings' for YPCrawler::PageCrawler:Class
from (pry):4:in `<class:PageCrawler>'
[5] pry(YPCrawler::PageCrawler)> url
NameError: undefined local variable or method `url' for YPCrawler::PageCrawler:Class
Did you mean? URI
from (pry):5:in `<class:PageCrawler>'
[6] pry(YPCrawler::PageCrawler)> #url
=> nil
Why can I not access #url that was initialized in my def initialize method?
Edit 1
Added Screenshots of what my code and the terminal PRY session really look like, since there was some disbelief about the position of my binding.pry.
Edit 2
My main lib/yp-crawler.rb file looks like this:
require_relative "yp-crawler/version"
require_relative "yp-crawler/page-crawler"
require_relative "yp-crawler/listing-crawler"
module YPCrawler
end
So the code that is run above is my yp-crawler/page-crawler.rb file, which I included in my lib/yp-crawler.rb file.
Edit 3
Here is a recording of my entire workflow. Please tell me what I am missing:
https://www.dropbox.com/s/jp1abthfkiplb4p/Pry-not-cooperating.webm?dl=0

Answer 1

I bet your code looks as follows:
module YPCrawler
class PageCrawler
attr_reader :url
def initialize(url)
#url = 'http://www.someurl.com'
end
def get_page_listings
body = Net::HTTP.get(URI.parse(#url))
document = Oga.parse_html(body)
bizlistings = document.css('div.result')
end
binding.pry
end
end
Even though you might have moved the binding.pry into method, most likely you did not reload the console, so it executes the "wrong" version.
From your screenshots it is clear that either file is not reloaded or you just made changes to wrong file.