Module: Rutt::DB::Feed

Extended by:
Feed
Included in:
Feed
Defined in:
lib/rutt/db/feed.rb

Instance Method Summary collapse

Instance Method Details

#add(url, refresh = true) ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 19

def add(url, refresh=true)
  $db.execute("insert or ignore into feeds (url) values ('#{url}')")
  $db.execute("select * from feeds where id = (select last_insert_rowid())") do |feed|
    refresh_for(feed)
  end if refresh
end

#all ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 35

def all
  $db.execute(%{
    select f.*,
        (select count(*) from items iu where iu.feed_id = f.id) as num_items,
        (select count(*) from items ir where ir.read = 0 and ir.feed_id = f.id) as unread
    from feeds f where unread > 0 order by id desc
  })
end

#delete(feed) ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 30

def delete(feed)
  $db.execute("delete from items where feed_id = ?", feed['id'])
  $db.execute("delete from feeds where id = ?", feed['id'])
end

#get(id) ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 26

def get(id)

end

#make_table! ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 6

def make_table!
  $db.execute(%{
   create table if not exists feeds (
                id integer PRIMARY KEY,
                title text,
                url text,
                update_interval integer default 3600,
                created_at NOT NULL DEFAULT CURRENT_TIMESTAMP,
                updated_at NOT NULL DEFAULT CURRENT_TIMESTAMP,
                UNIQUE(url))
})
end

#mark_as_read(feed) ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 70

def mark_as_read(feed)
  $db.execute("update items set read = 1 where feed_id = ?", feed['id'])
end

#refresh ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 44

def refresh
  feeds = $db.execute("select * from feeds")
  results = Parallel.map(feeds, :in_threads => 8) do |feed|
    refresh_for(feed)
  end
end

#refresh_for(feed) ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 51

def refresh_for(feed)
  content = open(feed['url']).read
  rss = FeedParser::Feed::new(content)

  puts rss.title

  $db.execute("update feeds set title = ? where id = ?", rss.title, feed['id'])

  rss.items.each do |item|
    $db.execute("insert or ignore into items (feed_id, title, url, published_at) values (?, ?, ?, ?)", feed['id'], item.title, item.link, item.date.to_i)
  end
rescue Exception => e
  # no-op
end

#unread(feed_id) ⇒ Object 



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# File 'lib/rutt/db/feed.rb', line 66

def unread(feed_id)
  $db.execute("select * from items where feed_id = ? and read = 0", feed)
end