Can Rails日誌條目會被截斷嗎？

Question

我使用Rails 3.2.8與PostgreSQL/PostGIS和rgeo寶石系列。這些生產日誌與壯觀長的查詢，並迅速成爲GB的大小：

Region Load (8.8ms) SELECT name, polygon FROM "region" WHERE "region"."id" = 17 LIMIT 1 
(6.2ms) SELECT st_astext(st_centroid('MULTIPOLYGON (((-111.1779942105267 
64.09860899912356, -111.17799400000047 64.09859499912357, -111.17671900000042 
64.098605999123485, -111.17635518181078 64.09860899912356, -111.17538500000043 
... 
...many, many, many points ... 
... 
-111.17799600000035 64.101920999123465, -111.1779940000004 64.10127099912361, 
-111.17799500000035 64.09935199912358, -111.17799600000035 64.09872799912365, 
-111.1779942105267 64.09860899912356)))')) 

有約束的Rails的長度日誌條目一個內置的方式嗎？更好的辦法是限制某些查詢類型的日誌的查詢部分（即本例中的地理查詢）。

Answer 1

很簡單，一拉本（修訂）Railscast：

# config/initializers/log_formatter.rb 
class Logger::SimpleFormatter 
    def call(severity, time, progname, msg) 
    "[#{severity}] #{msg.truncate(200)}\n" 
    end 
end