我是一个红宝石菜鸟,我正在尝试使用Sequel和data_objects适配器处理一些博客文章:
DB = Sequel.connect('do:mysql://user:pass@localhost/database')
db[posts_query].each do |post|
puts post
end
但我得到Sequel::InvalidValue
例外,抱怨日期栏:
/usr/lib/ruby/1.9.1/time.rb:202:in `local': ArgumentError: argument out of range (Sequel::InvalidValue)
from /usr/lib/ruby/1.9.1/time.rb:202:in `make_time'
from /usr/lib/ruby/1.9.1/time.rb:271:in `parse'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/core.rb:295:in `string_to_datetime'
我试图抓住异常:
begin
db[posts_query].each do |post|
puts post
end
rescue Sequel::InvalidValue => e
puts e.inspect
end
但这没什么用。
如何找出哪一行的值不正确?
此外,是否有办法进行此迭代,以便我可以捕获异常但继续循环其余的行?
更新
我切换到mysql2适配器,现在我至少可以看到无效日期:
/var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/adapters/mysql2.rb:154:in `each': Mysql2::Error: Invalid date: 2008-04-00 00:00:15 (Sequel::DatabaseError)
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/adapters/mysql2.rb:154:in `block in fetch_rows'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/adapters/mysql2.rb:89:in `_execute'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/adapters/shared/mysql_prepared_statements.rb:34:in `block in execute'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/database/connecting.rb:236:in `block in synchronize'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/connection_pool/threaded.rb:104:in `hold'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/database/connecting.rb:236:in `synchronize'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/adapters/shared/mysql_prepared_statements.rb:34:in `execute'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/dataset/actions.rb:778:in `execute'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/adapters/mysql2.rb:171:in `execute'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/adapters/mysql2.rb:140:in `fetch_rows'
from /var/lib/gems/1.9.1/gems/sequel-3.42.0/lib/sequel/dataset/actions.rb:154:in `each'
from wordpress_importer.rb:112:in `process'
from wordpress_importer.rb:308:in `<main>'
答案 0 :(得分:3)
你可以发布更多的回溯吗?您需要查看正在调用的内容string_to_datetime
。
另外,我建议不要使用do / mysql适配器,除非你有特殊需求需要它。请改用mysql或mysql2适配器。如果错误是由MySQL数据库中的伪造日期时间引起的,那么您可能需要使用mysql2适配器或使用mysql适配器并设置DB.convert_invalid_date_time = nil
。