71 lines
2 KiB
Ruby
71 lines
2 KiB
Ruby
class Feed < ActiveRecord::Base
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has_many :items, :dependent => :destroy
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has_many :errors, :dependent => :destroy
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validates_uniqueness_of :url
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default_scope where(:has_errors => false)
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scope :with_error, unscoped.where(:has_errors => true)
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def fetch!
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Feedzirra::Feed.fetch_and_parse(url,
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:on_success => lambda do |url, feed|
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begin
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feed.entries.each do |entry|
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unless Item.exists?(:url => entry.url)
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entry.sanitize!
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items << Item.create_from_feed_entry!(entry)
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end
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end
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by_url(url).update_attribute(:has_errors, false)
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rescue Exception => e
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Error.create!(:feed_id => self.id, :action => :fetch_and_parse,
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:message => e)
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end
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end,
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:on_failure => lambda do |url, response_code, response_header, response_body|
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by_url(url).update_attribute(:has_errors, true)
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Error.create!(:feed_id => self.id, :action => :fetch_and_parse,
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:message => "
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url: #{url}
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response-code: #{response_code}
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response-header: #{response_header}
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response-body: #{response_body}
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")
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end
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)
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end
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def self.import(url, *params)
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Feedzirra::Feed.fetch_and_parse(url,
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:on_success => lambda do |url, feed|
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Feed.create!(:url => feed.feed_url, :title => feed.title).fetch!
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end,
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:on_failure => lambda do |url, response_code, response_header, response_body|
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if params.first.include?(:force)
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feed = Feed.create!(:url => url, :has_errors => true)
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Error.create!(:feed_id => feed.id, :action => :import,
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:message => "
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url: #{url}
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response-code: #{response_code}
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response-header: #{response_header}
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response-body: #{response_body}
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")
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end
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end
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)
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end
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def self.update_all!
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Feed.all.each do |feed|
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feed.fetch!
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end
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end
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private
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def by_url(feed_url)
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Feed.where(:url => feed_url).first
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end
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end
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