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我只是试图运行查询来查找数据库中的所有记录在“datetime”列中的值小于当前的unix时间戳。活动记录查询和heroku问题。
目前这是我的代码。它在当地运行良好。
t = Time.new.to_i
Event.where("datetime < #{t}")
当我在heroku控制台中测试这个错误时,我得到这个错误。
>> Event.where("datetime < #{t}")
ActiveRecord::StatementInvalid: PGError: ERROR: operator does not exist: character varying < integer
LINE 1: SELECT "events".* FROM "events" WHERE (datetime < 132462148...
^
HINT: No operator matches the given name and argument type(s). You might need to add explicit type casts.
: SELECT "events".* FROM "events" WHERE (datetime < 1324621488)
/app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:1003:in `async_exec'
/app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:1003:in `exec_no_cache'
/app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/postgresql_adapter.rb:591:in `block in exec_query'
/app/.bundle/gems/ruby/1.9.1/gems/activerecord-3.1.1/lib/active_record/connection_adapters/abstract_adapter.rb:244:in `block in log'
任何想法?
你在本地使用postgresql吗? – thatmiddleway 2011-12-23 06:40:19