episode

Question

我正在运行一个调用Simplecasts API来显示我的播客剧集的rails应用程序。我按照教程使用Faraday来设置API服务。我的问题是如何在我的索引页上只显示已发布的剧集？通常情况下，我会在索引页上添加一个 .where(:status => "live") 在我的控制器中，IE @podcasts = Episodes.where(:status => "published") 但这似乎并不奏效。

Simplecast的API为播客返回了一个 collection 包含所有可用的剧集，每个剧集都有一个 status 节点。

由于我是在Rails中使用外部API的新手，因此需要得到任何帮助。

API响应样本

"collection": [
    {
        "updated_at": "2020-03-25T17:57:00.000000-04:00",
        "type": "full",
        "token": "lgjOmFwr",
        "title": "Test",
        "status": "draft",

Episode.rb

module Simplecast
  class Episodes < Base
    attr_accessor :count,
                  :slug,
                  :title,
                  :status

    MAX_LIMIT = 10

    def self.episodes(query = {})
      response = Request.where('/podcasts/3fec0e0e-faaa-461f-850d-14d0b3787980/episodes', query.merge({ number: MAX_LIMIT }))
      episodes = response.fetch('collection', []).map { |episode| Episode.new(episode) }
      [ episodes, response[:errors] ]
    end

    def self.find(id)
      response = Request.get("episodes/#{id}")
      Episode.new(response)
    end

    def initialize(args = {})
      super(args)
      self.collection = parse_collection(args)
    end

    def parse_collection(args = {})
      args.fetch("collection", []).map { |episode| Episode.new(episode) }
    end
  end
end

控制器

class PodcastsController < ApplicationController
  layout "default"


  def index

    @podcasts, @errors = Simplecast::Episodes.episodes(query)

    @podcast, @errors = Simplecast::Podcast.podcast(query)

    render 'index'
  end

  # GET /posts/1
  # GET /posts/1.json
  def show
    @podcast = Simplecast::Episodes.find(params[:id])
    respond_to do |format|
      format.html
      format.js
    end
  end

  private
    def query
      params.permit(:query, {}).to_h
    end
end

Answer 1

看起来像集合只是一个哈希数组，所以rails ActivrRelations方法又名.where不支持。然而，它是一个数组，所以你可以只过滤这个数组。

published_episodes = collection.filter { --