- def self.sql_for_area(minlat, minlon, maxlat, maxlon, prefix = nil)
- tilesql = QuadTile.sql_for_area(minlat, minlon, maxlat, maxlon, prefix)
- minlat = (minlat * 10000000).round
- minlon = (minlon * 10000000).round
- maxlat = (maxlat * 10000000).round
- maxlon = (maxlon * 10000000).round
-
- return "#{tilesql} AND #{prefix}latitude BETWEEN #{minlat} AND #{maxlat} AND #{prefix}longitude BETWEEN #{minlon} AND #{maxlon}"
+ def self.sql_for_area(bbox, prefix = nil)
+ tilesql = QuadTile.sql_for_area(bbox, prefix)
+ bbox = bbox.to_scaled
+
+ return "#{tilesql} AND #{prefix}latitude BETWEEN #{bbox.min_lat} AND #{bbox.max_lat} " +
+ "AND #{prefix}longitude BETWEEN #{bbox.min_lon} AND #{bbox.max_lon}"
+ end
+
+ # Return a spam score for a chunk of text
+ def self.spam_score(text)
+ link_count = 0
+ link_size = 0
+
+ doc = Nokogiri::HTML(text)
+
+ if doc.content.length > 0
+ doc.xpath("//a").each do |link|
+ link_count += 1
+ link_size += link.content.length
+ end
+
+ link_proportion = link_size.to_f / doc.content.length.to_f
+ else
+ link_proportion = 0
+ end
+
+ return [link_proportion - 0.2, 0.0].max * 200 + link_count * 20