我对 Rails 很陌生，这是我的第一个项目。您能帮我了解如何调查错误吗？
我使用 ransack 和地理编码编写了一个搜索功能，以根据对象的位置在数据库中显示对象。
我在这里遇到了一个例外：
@cars_address = Car.where(active: true).near(session[:loc_search], 5, order: 'distance')
我在控制台中收到此错误：
异常 = 不支持的参数类型：0（整数）
当我在我的搜索表单中输入长字符串时会发生错误，所有内容都适用于“米兰”之类的内容，但地理完整建议出现异常，例如“米兰，意大利米兰大都会””。
这是控制器：
def search
if params[:q].present? && params[:q].strip != ""
session[:loc_search] = params[:q]
end
if session[:loc_search] && session[:loc_search] != ""
#Something Wrong Here?
@cars_address = Car.where(active: true).near(session[:loc_search], 5, order: 'distance')
else
@cars_address = Car.where(active: true).all
end
@q = @cars_address.ransack(params[:q])
@cars = @q.result
@arrCars = @cars.to_a
这是异常的堆栈跟踪
Processing by PagesController#search as HTML
Parameters: {"q"=>"Milano, Metropolitan City of Milan, Italy", "start_date"=>"", "end_date"=>"", "commit"=>"Search"}
[4, 13] in /mnt/c/Users/haget/Documents/GitHub/Clapp/app/controllers/pages_controller.rb
4: @cars = Car.where(active: true).limit(3)
5: end
6:
7: def search
8: byebug
=> 9: if params[:q].present? && params[:q].strip != ""
10: session[:loc_search] = params[:q]
11: end
12: if session[:loc_search] && session[:loc_search] != ""
13:
(byebug)
[95, 104] in /home/haget/.rvm/gems/ruby-2.7.0/gems/puma-4.3.5/lib/puma/thread_pool.rb
95: not_full = @not_full
96:
97: extra = @extra.map { |i| i.new }
98:
99: while true
=> 100: work = nil
101:
102: continue = true
103:
104: mutex.synchronize do
(byebug)
[19, 28] in /home/haget/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.3.2/lib/action_controller/metal/rescue.rb
19:
20: private
21: def process_action(*args)
22: super
23: rescue Exception => exception
=> 24: request.env["action_dispatch.show_detailed_exceptions"] ||= show_detailed_exceptions?
25: rescue_with_handler(exception) || raise
26: end
27: end
28: end
(byebug)
[32, 41] in /home/haget/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.3.2/lib/action_controller/metal/instrumentation.rb
32: ActiveSupport::Notifications.instrument("process_action.action_controller", raw_payload) do |payload|
33: super.tap do
34: payload[:status] = response.status
35: end
36: ensure
=> 37: append_info_to_payload(payload)
38: end
39: end
40:
41: def render(*args)
(byebug)
[20, 29] in /home/haget/.rvm/gems/ruby-2.7.0/gems/activesupport-6.0.3.2/lib/active_support/notifications/instrumenter.rb
20: def instrument(name, payload = {})
21: # some of the listeners might have state
22: listeners_state = start name, payload
23: begin
24: yield payload if block_given?
=> 25: rescue Exception => e
26: payload[:exception] = [e.class.name, e.message]
27: payload[:exception_object] = e
28: raise e
29: ensure
(byebug)
Completed 500 Internal Server Error in 13406ms (ActiveRecord: 0.0ms | Allocations: 788474)
[36, 45] in /home/haget/.rvm/gems/ruby-2.7.0/gems/actionview-6.0.3.2/lib/action_view/rendering.rb
36: # Overwrite process to setup I18n proxy.
37: def process(*) #:nodoc:
38: old_config, I18n.config = I18n.config, I18nProxy.new(I18n.config, lookup_context)
39: super
40: ensure
=> 41: I18n.config = old_config
42: end
43:
44: module ClassMethods
45: def _routes
(byebug)
[25, 34] in /home/haget/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.3.2/lib/action_dispatch/middleware/callbacks.rb
25: error = nil
26: result = run_callbacks :call do
27: @app.call(env)
28: rescue => error
29: end
=> 30: raise error if error
31: result
32: end
33: end
34: end
(byebug)
[12, 21] in /home/haget/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.3.2/lib/action_dispatch/middleware/executor.rb
12: state = @executor.run!
13: begin
14: response = @app.call(env)
15: returned = response << ::Rack::BodyProxy.new(response.pop) { state.complete! }
16: ensure
=> 17: state.complete! unless returned
18: end
19: end
20: end
21: end
(byebug)
[36, 45] in /home/haget/.rvm/gems/ruby-2.7.0/gems/actionpack-6.0.3.2/lib/action_dispatch/middleware/debug_exceptions.rb
36: raise ActionController::RoutingError, "No route matches [#{env['REQUEST_METHOD']}] #{env['PATH_INFO'].inspect}"
37: end
38:
39: response
40: rescue Exception => exception
=> 41: invoke_interceptors(request, exception)
42: raise exception unless request.show_exceptions?
43: render_exception(request, exception)
44: end
45:
(byebug)
ArgumentError (Unsupported argument type: 0 (Integer)):
app/controllers/pages_controller.rb:16:in `search'
解决了
地理编码器本身无法从自动定位建议建议的一些长字符串中返回坐标，因此我不得不更改地理编码器：配置以告诉地理编码器从谷歌位置 api 获取坐标。