获取从model到contoller的变量/方法，因此我可以将变量发布到视图

Question

我正在尝试在页面控制器中创建一个变量 latitude，其值为long_lat_parser.lon。我希望将变量发送到 home.html视图 !!

PagesController 挂钩到主页page.html以查看我的变量：

class PagesController < ApplicationController

def place_params
  long_lat_parser = LongLatParser(image)
  {place_attributes: {longitude:  long_lat_parser.lon,  latitude: long_lat_parser.lat}}
end

def home
    @post = Post.new
    @posts = Post.all
    @places = Place.all
    @place = Place.new

    @post = current_user.posts.build(post_params.merge(place_params))
    #@latitude = Post.save_image_exif(params[:latitude])
end

lotlangparser模型：

class LotLangParser

  after_create :initialize

  def initialize(image)
    @image = image
    @exif_data = MiniExiftool.new(image.queued_for_write[:original].path)
  end

  def lat
    parse_latlong(exif_data['gpslatitude'])
  end

  def lon
    parse_latlong(exif_data['gpslongitude'])
  end

  private

  def parse_latlong(latlong)
    return unless latlong
    match, degrees, minutes, seconds, rotation = /(\d+) deg (\d+)' (.*)" (\w)/.match(latlong).to_a
    calculate_latlong(degrees, minutes, seconds, rotation)
  end

  def calculate_latlong(degrees, minutes, seconds, rotation)
    calculated_latlong = degrees.to_f + minutes.to_f/60 + seconds.to_f/3600
    ['S', 'W'].include?(rotation) ? -calculated_latlong : calculated_latlong
  end
end

总而言之，我想把这个lat与indiviualy和long一起放进html视图！我将如何将其发布到视图中？ <%= long_lat_parser.lon %> ??