Question

我使用rails 2.3.5，will_paginate-2.3.15和postgress。我有2个belongs_to's到同一张桌子。如果我首先搜索属性然后搜索别名表属性，那么它会抛出异常。如果我在条件下颠倒顺序......

class House
  belongs_to :owner, :class => "User"
  belogns_to :creator, :class => "User"
end

House.paginate(
  :page=>1, 
  :include=>[:creator, :owner], 
  :per_page=>20, 
  :conditions=>"houses.city ILIKE E'%new yo%' and owners_houses.architect ILIKE E'%tom%'")

加注

ActiveRecord::StatementInvalid: PGError: ERROR:  missing FROM-clause entry for table "owners_houses",

在日志中没有从子句

加入

这有效：

House.paginate(
  :page=>1, 
  :include=>[:creator, :owner], 
  :per_page=>20, 
  :conditions=>"owners_houses.architect ILIKE E'%tom%' and houses.city ILIKE E'%new yo%'")

这是will_paginate中的错误吗？为什么会这样？

Answer 1

检查development.log以查找为WORKING和NON WORKING语句生成的Sql查询

在对关联进行分页时，会对缺少的FROM子句条目进行分页

1 个答案: