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我有一个位置模型,它本身有一个经度和纬度。我要的是其拉/长是在一定区域内交易,所以我想这:搜索对象相关对象SQL ActiveRecord
boundary = self.user.boundary
max_lat, max_lng = boundary.max_coords.latitude, boundary.max_coords.lng
min_lat, min_lng = boundary.min_coords.latitude, boundary.min_coords.lng
lat, long = self.user.location.latitude, self.user.location.longitude
self.all_deals = Deal.where('location.latitude <= ? AND location.latitude >= ? AND location.longitude <= ? AND location.longitude >= ?', max_lat, min_lat, max_lng, min_lng).limit(10)
SQL抛出一个异常说有没有列“location.latitude”。我怎么能写同样的东西,但要么使用ActiveRecord(首选)或原始SQL?