Create an array from data received - ruby-on-rails

Question

I am trying to learn how to get data via a screen scrape and then save it to a model. So far I can grab the data. I say this as if I do:
puts home_team
I get all the home teams returned
get_match.rb #grabbing the data
require 'open-uri'
require 'nokogiri'
module MatchGrabber::GetMatch
FIXTURE_URL = "http://www.bbc.co.uk/sport/football/premier-league/fixtures"
def get_fixtures
doc = Nokogiri::HTML(open(FIXTURE_URL))
home_team = doc.css(".team-home.teams").text
end
end
Then i want to update my model
match_fixtures.rb
module MatchFixtures
class MatchFixtures
include MatchGrabber::GetMatch
def perform
update_fixtures
end
private
def update_fixtures
Fixture.destroy_all
fixtures = get_fixtures
end
def update_db(matches)
matches.each do |match|
fixture = Fixture.new(
home_team: match.first
)
fixture.save
end
end
end
end
So the next step is where I am getting stuck. First of all I need to put the home_team results into an array?
Second part is I am passing matches through my update_db method but that's not correct, what do I pass through here, the results of the home_team from my update_fixtures method or the method itself?
To run the task I do:
namespace :grab do
task :fixtures => :environment do
MatchFixtures::MatchFixtures.new.perform
end
end
But nothing is saved, but that is to be expected.
Steep learning curve here and would appreciate a push in the right direction.

Answer 1

Calling css(".team-home.teams").text does not return the matching DOM elements as an array, but as a single string.
In order to obtain an array of elements, refactor get fixture into something like this:
get_teams
doc = Nokogiri::HTML(open(FIXTURE_URL))
doc.css(".team-home.teams").map { |el| el.text.strip }
end
This will return an array containing the text of the elements matching your selector, stripped out of blank and new line characters. At this point you can loop over the returned array and pass each team as an argument to your model's create method:
get_teams.each { |team| Fixture.create(home_team: team) }

Answer 2

You could just pass the array directly to the update method:
def update_fixtures
Fixture.destroy_all
update_db(get_fixtures)
end
def update_db(matches)
matches.each {|match| Fixture.create(home_team: match.first) }
end
Or do away with the method all together:
def update_fixtures
Fixture.destroy_all
get_fixtures.each {|match| Fixture.create(home_team: match.first) }
end