SQLite boolean字段设置失败
环境： ruby 1.9.3p0， rails 3.2.7
Teachaer有一个字段，man:boolean
rails g scaffold teacher man:boolean
db:migrate
勾选man后，更新teacher时，发现SQLite数据库中字段man并没有设置成功
查看log，set 'man' = 't' ，使用sql语句进行设置，确实不行
update 'teacher' set 'man' = 1 where 'id' = 2;
设置为1，成功
Started PUT "/teachers/1" for 127.0.0.1 at 2012-09-10 22:34:49 +0800
Processing by TeachersController#update as HTML
Parameters: {"utf8"=>"✓", "authenticity_token"=>"K2Lti+KOlrK7s133EMPs+TAMsSOc
VpXp8wlyMAgVDCE=", "teacher"=>{"man"=>"1"}, "commit"=>"Update Teacher", "id"=>"1
"}
[1m[35mTeacher Load (15.6ms)[0m SELECT "teachers".* FROM "teachers" WHERE
"teachers"."id" = ? LIMIT 1 [["id", "1"]]
[1m[36m (0.0ms)[0m [1mbegin transaction[0m
[1m[35m (0.0ms)[0m UPDATE "teachers" SET "man" = 't', "updated_at" = '2012
-09-10 14:34:49.906250' WHERE "teachers"."id" = 1
[1m[36m (0.0ms)[0m [1mcommit transaction[0m
Redirected to http://localhost:3000/teachers/1
Completed 302 Found in 16ms (ActiveRecord: 15.6ms)
参数传过来的man值为1，但是在更新数据库的时候，却设置为t，肯定是rails搞的鬼，搞了半天终于找到了
activerecord-3.2.7\lib\active_record\connection_adapters\abstract\quoting.rb
打开这个文件，修改以下函数：
def quoted_true
"'t'"
end
def quoted_false
"'f'"
end
为
def quoted_true
"'1'"
end
def quoted_false
"'0'"
end
重新启动，再试试就OK了，应该可以再modle中直接重写，更简单一点