Rails将变量传递给jBuilder [英] Rails passing variable to jBuilder

问题描述

已修复，解决方案已合并到OP中. @max的评论以及我相关的帖子连接到jBuilder的导轨.使用// Was:

Fixed and solutions incorporated into the OP. A combination of comments by @max here and to my related posting Rails connecting to jBuilder. Edits are with // Was:

我正在尝试通过has_many :through关系获取值.三个主要数据库:人员，位置(具有街道地址和其他信息)以及联接表years，联接表将人员在特定日期链接到特定地址.

I'm trying to get values through a has_many :through relationship. Three main databases: people, locations (which has street address and other information), and the join table, years which links the person to a particular address on a specific date.

# models/person.rb
class Person < ApplicationRecord
  has_many :years, dependent: :destroy 
  has_many :locations, through: :years

# models/location.rb
class Location < ApplicationRecord
  has_many :years
  has_many :people, through: :years

# models/year.rb
class Year < ApplicationRecord
  belongs_to :location
  belongs_to :person

years在特定日期将该人链接到特定地址.

years links the person to a particular address on a specific date.

据我了解，流程是show.html.erb调用javascript/packs/olPersonMap.js，然后调用show_locations.json.jbuilder.如何将person.id传递给jbuilder?

As I understand it the flow is that the show.html.erb calls javascript/packs/olPersonMap.js which then calls show_locations.json.jbuilder. How do I pass the person.id to jbuilder?

从views/people/show.html.erb开始(现在可能不需要类，需要重构).

From views/people/show.html.erb (class is probably not needed now, refactoring needed).

// Was: <div id="map" class="map"></div>
 <div id="map" class="map" data-url="<%= person_locations_path(@person) %>"></div>  
<%= javascript_pack_tag 'olPersonMap' %>
<div>

来自javascript/packs/olPersonMap.js.

// Near the top of the file
var urlJSON = $('#map').data('url') + '.json'
// and much further down in the code
new VectorImageLayer({
  title: 'Where lived and worked',
  imageRatio: 2,
  source: new VectorSource({
    // Was: url: '../people/show_locations',
    url: urlJSON
    format: new GeoJSON()
}),

来自@max jBuilder位于app/views/people/show_locations.json.jbuilder中，现在位于app/views/people/locations/index.json.jbuilder中.遗漏代码不是主要问题(尽管确实有一些错误).

From @max jBuilder was in app/views/people/show_locations.json.jbuilder, now app/views/people/locations/index.json.jbuilder. Leaving code out as it wasn't the main problem (although it did have few errors).

还有

# app/controllers/people/locations_controller.rb
module People
  class LocationsController < ApplicationController
    before_action :set_person

    def index
      respond_to do |f|
        f.json
      end
    end

    private
    def set_person
      @person = Person.eager_load(:locations)
                      .find(params[:person_id])
      @locations = @person.locations
    end
  end
end

和routes.rb

resources :people do
  resources :locations, only: [:index], module: :people
end

总而言之，如何将person.id传递给jBuilder?还是我会错了?

In summary, how do I pass person.id to the jBuilder? Or am I going at this all wrong?

谢谢@max.我需要努力了解控制器的功能.许多运动部件. https://secure-shore-68966.herokuapp.com/people/124是Leaflet版本.在进行一些重构后将推送此OpenLayers版本，以删除所有试用版.

Thank you @max. I need to work on understanding what the controller is doing. Lots of moving parts. https://secure-shore-68966.herokuapp.com/people/124 is the Leaflet version. Will push this OpenLayers version after some refactoring to remove all the trial stuff.

推荐答案

答案已合并到OP中.谢谢@max.

The answer is incorporated into the OP. Thank you @max.

PS.我将olPeopleMap.js更改为olPersonMap.js，因为它更合逻辑.

PS. I changed olPeopleMap.js to olPersonMap.js as it was more logical.

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