ajaxの実装に問題があります。ステートメントが機能しない場合

私が何を求めているのかを正確に知るために、ここで何が問題なのかわかりませんが、ベストショットを出します。問題はそれを明確にすることだと思うところを大胆にしようとしました。

私は初めてajaxを使用しています。アプリでは、user（1）がuser（2）を検索し、user（2）を見つけると、user（1）はボタン「関係の追加」をクリックして、user（2）に関係要求を送信できます。ボタン「関係の追加」はすぐに「関係の要求」に変更され、ページを更新すると、ボタンは「関係の編集」に変更されます。

'関係の追加' =関係はまだ存在しません '関係が要求されました' =保留中の関係が存在し、成功のフラッシュメッセージのように機能します '関係の編集' =保留中の関係が存在するか、受け入れられた関係が存在します

ブラウザページを更新したときにボタンが「関係の編集」に変わる最後の部分を除いて、すべて機能しています。代わりに「関係の追加」が表示されます

この「関係の編集」ボタンが表示されないアイデアはありますか？ステートマシン、ドレーパー、js-routesgemを使用しています。

ビュー/ユーザー/インデックス：

user（2）を検索すると、名前が表示され、名前の横に「関係を追加」、「関係を編集」、または「関係が要求されました」ボタンが表示されます。

ここでのifステートメントは機能していないものだと思います。保留中か承認済みかに基づいて関係を見つけられないのはなぜですか？

<% if logged_in? %>
    <ul>
        <% @users.each do |user| %>
            <li>
                <%= user.name %>
                <div id="relationship-status">
                    <% if current_user.following.include?(user.id) || current_user.pending_following.include?(user.id) %>
                        <%= link_to "Edit Relationship", edit_relationship_path(followed_id: user.id), class: "btn btn-primary" %>
                    <% else %>
                        <%= link_to "Add Relationship", new_relationship_path(followed_id: user.id), class: "btn btn-primary", id: 'add-relationship', data: { followed_id: user.id.to_param } %>
                    <% end %>
                </div>
            </li>
        <% end %>
    </ul>
<% end %>   

コントローラー/ユーザー：

  def index
    @users = User.search(params[:search])
  end

Relationship.js：

$(document).ready(function() {

    $('#add-relationship').click(function(event) {
        event.preventDefault();
        var addRelationshipBtn = $(this);
        $.ajax({
            url: Routes.relationships_path({relationship: { followed_id: addRelationshipBtn.data('followedId') }}),
            dataType: 'json', 
            type: 'POST', 
            success: function(e) {
                addRelationshipBtn.hide();
                $('#relationship-status').html("<a href='#' class='btn btn-success'>Relationship Requested</a>");
            }
        });
    });
});

モデル/ユーザー：

class User < ActiveRecord::Base
  has_one :profile, dependent: :destroy
  has_many :pending_relationships,  class_name:  "Relationship",
                                    foreign_key: "follower_id"
  has_many :active_relationships,   class_name:  "Relationship",
                                    foreign_key: "follower_id",
                                    dependent:   :destroy
  has_many :passive_relationships,  class_name:  "Relationship",
                                    foreign_key: "followed_id",
                                    dependent:   :destroy                                
  has_many :following, -> { where(relationships: { state: "accepted" } ) }, through: :active_relationships,  source: :followed
  has_many :followers, through: :passive_relationships, source: :follower                              
  has_many :pending_following, -> { where(relationships: { state: "pending" } ) }, through: :pending_relationships,  source: :followed

関係/デコレータ：

class RelationshipDecorator < Draper::Decorator
  delegate_all

  decorates :relationship

  def relationship_state
    model.state.titleize
  end

  def sub_message
    case model.state
    when 'pending'
      "Relationship request pending"
    when 'accepted'
      "You are now connected with #{model.followed.name}"
    end
  end
end

編集：

データベース/移行：

class AddStateToRelationships < ActiveRecord::Migration
  def change
    add_column :relationships, :state, :string
    add_index :relationships, :state
  end
end

モデル/関係：

class Relationship < ActiveRecord::Base
  belongs_to :follower, class_name: "User"
  belongs_to :followed, class_name: "User"
  validates :follower_id, presence: true
  validates :followed_id, presence: true

  after_destroy :delete_mutual_relationship!

  state_machine :state, initial: :pending do
    after_transition on: :accept, do: [:send_acceptance_email, :accept_mutual_relationship!]

    state :requested

    event :accept do
      transition any => :accepted
    end
  end

端子出力：

Started POST "/relationships?relationship%5Bfollowed_id%5D=25" for 127.0.0.1 at 2014-11-06 16:35:26 +1100
Processing by RelationshipsController#create as JSON
  Parameters: {"relationship"=>{"followed_id"=>"25"}}
  User Load (0.4ms)  SELECT  "users".* FROM "users"  WHERE "users"."id" = 1 LIMIT 1
  User Load (0.3ms)  SELECT  "users".* FROM "users"  WHERE "users"."id" = ? LIMIT 1  [["id", 25]]
   (0.1ms)  begin transaction
  SQL (5.4ms)  INSERT INTO "relationships" ("created_at", "followed_id", "follower_id", "state", "updated_at") VALUES (?, ?, ?, ?, ?)  [["created_at", "2014-11-06 05:35:26.360104"], ["followed_id", 25], ["follower_id", 1], ["state", "pending"], ["updated_at", "2014-11-06 05:35:26.360104"]]
  SQL (0.2ms)  INSERT INTO "relationships" ("created_at", "followed_id", "follower_id", "state", "updated_at") VALUES (?, ?, ?, ?, ?)  [["created_at", "2014-11-06 05:35:26.368921"], ["followed_id", 1], ["follower_id", 25], ["state", "requested"], ["updated_at", "2014-11-06 05:35:26.368921"]]
  Relationship Load (0.1ms)  SELECT  "relationships".* FROM "relationships"  WHERE "relationships"."id" = ? LIMIT 1  [["id", 49]]
  User Load (0.1ms)  SELECT  "users".* FROM "users"  WHERE "users"."id" = ? LIMIT 1  [["id", 1]]
  User Load (0.1ms)  SELECT  "users".* FROM "users"  WHERE "users"."id" = ? LIMIT 1  [["id", 25]]
  Rendered user_mailer/relationship_requested.html.erb (0.2ms)

UserMailer#relationship_requested: processed outbound mail in 27.9ms

Sent mail to [email protected] (14.2ms)
Date: Thu, 06 Nov 2014 16:35:26 +1100
From: [email protected]
To: [email protected]
Message-ID: <[email protected]>
Subject: Firstname Surname wants to follow you. Please log in to accept
 this request
Mime-Version: 1.0
Content-Type: text/html;
 charset=UTF-8
Content-Transfer-Encoding: 7bit

Hi example-24, 

Firstname Surname wants to follow you.

   (7.7ms)  commit transaction
Completed 200 OK in 71ms (Views: 0.3ms | ActiveRecord: 14.4ms)

私（ユーザー1）がユーザーexample-24（ユーザーID = 25）を検索し、[関係の追加]ボタンを押すとどうなりますか（sqlitebrowser :(これに関連する2行については画像の下部を参照）例）

編集：

ユーザー/コントローラー：

  def create
    if params[:relationship] && params[:relationship].has_key?(:followed_id)
      @followed = User.find(params[:relationship][:followed_id])
      # @followed = User.where(name: params[:relationship][:followed_id]).first
      @relationship = Relationship.request(current_user, @followed)
      respond_to do |format|
        if @relationship.new_record?
          format.html do
            flash[:danger] = "There was a problem creating that relationship request"
            redirect_to followed_path(@followed)
          end
          format.json { render json: @relationship.to_json, status: :precondition_failed }
        else
          format.html do
            flash[:success] = "Friend request sent"
            redirect_to followed_path(@followed)
          end
          format.json { render json: @relationship.to_json }
        end
      end
    else
      flash[:danger] = "Friend Required"
      redirect_to users_path
    end
  end