Question

我得到这个错误一段时间，有些时候没有。这很奇怪。

错误：语法错误在或附近“）”LINE 1：SELECT locations。*，（）as 距离“位置”ORDER ...

排队

nearby_locations.includes(:events).each do |location|

在我的仪表板控制器中

 def home            
    nearby_locations = Location.with_distance_to(remote_ip).order('distance').limit(10)
    @events  = []
    nearby_locations.includes(:events).each do |location|
        @events += location.events.where("publish = true")
    end
end

在我的Location.rb模型中

geocoded_by :address
extend Geocoder::Model::ActiveRecord
  reverse_geocoded_by :latitude, :longitude

  scope :with_distance_to, ->(point) { select("#{table_name}.*").select("(#{distance_from_sql(point)}) as distance") }

Answer 1

要停止错误，您应该在使用remote_ip上定义的范围之前验证dashboard_controller中Location是否存在。

 def home            
  unless remote_ip.blank?
    nearby_locations = Location.with_distance_to(remote_ip).order('distance').limit(10)
    @events  = []
    nearby_locations.includes(:events).each do |location|
        @events += location.events.where("publish = true")
    end
  end
end

要真正理解这个问题，首先要了解remote_ip是如何空白并解决该问题。

/ :: ERROR处的PG :: SyntaxError：“或”附近的语法错误“）”Rails

1 个答案: