Question

          ActiveRecord::Base.connection.execute
        ( "SELECT * FROM search_results(p_limit := 12,
         p_offset := 0,p_blocked_ids := '',p_following_ids 
        := '54,171,174',p_sort := 'latest',
        p_tags := '', p_search := '(O'neil)')" )

p_search参数中的特殊字符失败。我尝试使用双引号和$$ $$进行引号，但这不能解决问题。

在此查询中转义特殊字符的正确方法是什么？

完整错误消息：

ActiveRecord::StatementInvalid: PG::SyntaxError: ERROR:  syntax error at or near "neil"
LINE 1: ...t := 'latest',         p_tags := '', p_search := '(O'neil)')
                                                                ^
: SELECT * FROM search_results(p_limit := 12,          p_offset := 0,p_blocked_ids := '',p_following_ids          := '54,171,174',p_sort := 'latest',         p_tags := '', p_search := '(O'neil)')
    from /Users//.gem/ruby/2.3.0/gems/activerecord-5.0.6/lib/active_record/connection_adapters/postgresql/database_statements.rb:98:in `async_exec'
    from /Users//.gem/ruby/2.3.0/gems/activerecord-5.0.6/lib/active_record/connection_adapters/postgresql/database_statements.rb:98:in `block in execute'
    from /Users//.gem/ruby/2.3.0/gems/activerecord-5.0.6/lib/active_record/connection_adapters/abstract_adapter.rb:590:in `block in log'
    from /Users//.gem/ruby/2.3.0/gems/activesupport-5.0.6/lib/active_support/notifications/instrumenter.rb:21:in `instrument'
    from /Users//.gem/ruby/2.3.0/gems/activerecord-5.0.6/lib/active_record/connection_adapters/abstract_adapter.rb:583:in `log'
    from /Users//.gem/ruby/2.3.0/gems/activerecord-5.0.6/lib/active_record/connection_adapters/postgresql/database_statements.rb:97:in `execu

在这种情况下，假定重复项的建议没有帮助，并返回', p_search := ''o''neil'')

Answer 1

尝试一下：

ActiveRecord::Base.connection.execute
        ( "SELECT * FROM search_results(p_limit := 12,
         p_offset := 0,p_blocked_ids := '',p_following_ids 
        := '54,171,174',p_sort := 'latest',
        p_tags := '', p_search := '(O\'neil)')" )

请注意\中多余的(O\'neil)'。

我认为PostgreSQL正在读取'(O'neil)'，并且由于(O后面有一个单引号，所以该字符串在此结束并且会抱怨语法。

PG存储过程的ActiveRecord调用失败

1 个答案: