Question

我读了很多关于这个问题的事情，但我找不到问题所在的问题。我已经创建了一个rake任务，可以查找我的数据库中的所有学校，并找到所有高级学校。感谢Geocoder，这是非高级学校最近的3所保费学校。但是当我启动任务时，我遇到了这个错误：

..[0]

以下是代码：

geocoderschool.rake

rake aborted!
ArgumentError: wrong number of arguments (3 for 0..1)
/Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/origin-2.1.1/lib/origin/selectable.rb:334:in `near'
/Users/marchardantonin/Sites/Vroom2017/vroomvroom-web/lib/tasks/geocodeschool.rake:8:in `block (3 levels) in <top (required)>'
/Users/marchardantonin/.rvm/gems/ruby-2.0.0-p648/gems/mongoid-5.0.0/lib/mongoid/contextual/mongo.rb:668:in `yield_document'

school.rb

namespace :geocodeschool do
  desc "Show premium school near non-premium school and update them"
  task :schgc => :environment do
      @schools = School.all
      @schools_premium = @schools.premium_school
      radius = 30
      @schools.each do |school|
        @schools_aside = @schools_premium.near(school.coordinates.reverse, radius, units: :km).limit(3)
        puts "les auto-écoles premiums : #{@shcools_aside.count}"
        puts "-------"
        @schools_aside.each do |sa|
          puts sa.title
        end
        puts "-------"
    end
  end
end

geocodeschool.rb

  scope :premium_school, -> {where(:subscription.exists => true).where("subscription.current_period_end" => {'$gte' => Date.today})}

  embeds_one :geocodeschool
  accepts_nested_attributes_for :geocodeschool

有人能解释我的错误并帮我找到问题吗？

谢谢！

Answer 1

您应该查看该宝石的official documentations。它只接受散列作为参数，例如：

@schools_premium.near(location: [ 23.1, 12.1 ])

看一下Mongoid code，您似乎应该使用geo_near：

@schools_premium.geo_near(school.coordinates.reverse).max_distance(0.5)

Answer 2

应该在模型上调用地理编码的near方法，发送坐标。

所以，在PremiumSchool模型上调用它，并在@schools_premium中发送坐标

<强> @schools_aside = School.near(@schools_premium.coordinates.reverse, radius, units: :km).limit(3)

Here is the documentation.

Geocoder：ArgumentError：参数数量错误（3为0..1）

2 个答案: