質問編集履歴
3
Listscontrollerを記述
test
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```Ruby
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class ListsController < ApplicationController
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before_action :set_list, only: [:show, :edit, :update, :destroy]
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# GET /lists
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# GET /lists.json
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def index
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#@list = List.find(params[:id])
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@lists= List.where(user_id: current_user.id).order("start_time ASC")
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end
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# GET /lists/1
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# GET /lists/1.json
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def show
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end
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# GET /lists/new
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def new
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@list = List.new
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end
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# GET /lists/1/edit
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def edit
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end
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# POST /lists
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# POST /lists.json
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def create
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@list = List.new(list_params)
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@list.user_id = current_user.id
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#@list.tag_list.user_id = current_user.id
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respond_to do |format|
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if @list.save
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format.html { redirect_to @list, notice: 'List was successfully created.' }
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format.json { render :show, status: :created, location: @list }
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else
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format.html { render :new }
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format.json { render json: @list.errors, status: :unprocessable_entity }
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end
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end
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end
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# PATCH/PUT /lists/1
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# PATCH/PUT /lists/1.json
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def update
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respond_to do |format|
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if @list.update(list_params)
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format.html { redirect_to @list, notice: 'List was successfully updated.' }
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format.json { render :show, status: :ok, location: @list }
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else
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format.html { render :edit }
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format.json { render json: @list.errors, status: :unprocessable_entity }
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end
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end
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end
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# DELETE /lists/1
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# DELETE /lists/1.json
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def destroy
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@list.destroy
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respond_to do |format|
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format.html { redirect_to tag_lists_url, notice: 'List was successfully destroyed.' }
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format.json { head :no_content }
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end
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end
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private
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# Use callbacks to share common setup or constraints between actions.
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def set_list
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@list = List.find(params[:id])
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end
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# Never trust parameters from the scary internet, only allow the white list through.
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def list_params
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params.require(:list).permit(:content,:start_time, tag_ids:[])
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end
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end
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```
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2
タイトル
test
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@@ -1 +1 @@
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Railsで、中間テーブルのカラムに
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Railsで、中間テーブルのカラムに他のテーブルからカラムの値を参照したい
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test
CHANGED
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File without changes
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1
質問文のコード部分の書き方
test
CHANGED
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File without changes
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test
CHANGED
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@@ -1,14 +1,154 @@
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1
1
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### 前提・実現したいこと
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Tagモデル、ListモデルをTagListモデルを中間テーブルとして関連付けしています。
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ログイン中のユーザーの作成したもののみをtag_lists_controllerで@tag_lists = TagList.where(user_id: current_user.id)とすることでtaglistsの一覧ページで表示させたいのですが、
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コマンドラインで確認したところTagList.user_idがnilになっているためうまくできません。
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なので、今回実現したいことはTagList.user_idにcurrent_user.idを代入できるようにすることです。
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各テーブルのカラムは以下のようになっています。
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```Ruby
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create_table "tags", force: :cascade do |t|
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t.string "content"
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t.datetime "created_at", null: false
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t.datetime "updated_at", null: false
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t.integer "user_id"
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end
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create_table "lists", force: :cascade do |t|
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t.string "content"
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t.datetime "created_at", null: false
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t.datetime "updated_at", null: false
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t.integer "user_id"
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t.date "start_time"
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end
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create_table "tag_lists", force: :cascade do |t|
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t.integer "tag_id"
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t.integer "list_id"
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t.datetime "created_at", null: false
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t.datetime "updated_at", null: false
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61
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t.integer "user_id"
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62
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63
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+
t.index ["list_id"], name: "index_tag_lists_on_list_id"
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64
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+
|
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65
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+
t.index ["tag_id"], name: "index_tag_lists_on_tag_id"
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66
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+
|
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67
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+
end
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68
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+
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69
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70
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71
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+
create_table "users", force: :cascade do |t|
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72
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+
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73
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+
t.string "email", default: "", null: false
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74
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+
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75
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+
t.string "encrypted_password", default: "", null: false
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76
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+
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77
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+
t.string "reset_password_token"
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78
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+
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79
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+
t.datetime "reset_password_sent_at"
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80
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+
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81
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+
t.datetime "remember_created_at"
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82
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+
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83
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t.datetime "created_at", null: false
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84
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+
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85
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+
t.datetime "updated_at", null: false
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86
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+
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87
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t.index ["email"], name: "index_users_on_email", unique: true
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88
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+
|
|
89
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+
t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
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|
90
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+
|
|
91
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+
end
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92
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+
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93
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94
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3
95
|
```
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4
96
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5
97
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6
98
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99
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+
また、各モデルのアソシエーションは以下のようになっています。
|
|
100
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+
|
|
101
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+
```Ruby
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|
102
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+
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|
103
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class Tag < ApplicationRecord
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|
104
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+
|
|
105
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+
belongs_to :user, optional: true
|
|
106
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+
|
|
107
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+
has_many :tag_lists, dependent: :destroy
|
|
108
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+
|
|
109
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+
has_many :lists, :through => :tag_lists
|
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110
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+
|
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111
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+
end
|
|
112
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+
|
|
113
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+
|
|
114
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+
|
|
115
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class List < ApplicationRecord
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116
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117
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belongs_to :user, optional: true
|
|
118
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+
|
|
119
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+
has_many :tag_lists, dependent: :destroy
|
|
120
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+
|
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121
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has_many :tags, :through => :tag_lists
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122
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+
|
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123
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+
end
|
|
124
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+
|
|
125
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|
|
126
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|
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7
|
-
Tag
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127
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class TagList < ApplicationRecord
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|
8
|
-
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128
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+
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|
9
|
-
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129
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+
belongs_to :user, optional: true
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130
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+
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10
|
-
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131
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belongs_to :tag, optional: true
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132
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+
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11
|
-
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133
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belongs_to :list, optional: true
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134
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|
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135
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+
end
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|
136
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+
|
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137
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+
|
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138
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+
|
|
139
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+
class User < ApplicationRecord
|
|
140
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+
|
|
141
|
+
has_many :diaries
|
|
142
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+
|
|
143
|
+
has_many :tags
|
|
144
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+
|
|
145
|
+
has_many :lists
|
|
146
|
+
|
|
147
|
+
has_many :tag_lists
|
|
148
|
+
|
|
149
|
+
end
|
|
150
|
+
|
|
151
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+
```
|
|
12
152
|
|
|
13
153
|
|
|
14
154
|
|
|
@@ -16,35 +156,177 @@
|
|
|
16
156
|
|
|
17
157
|
### 発生している問題・エラーメッセージ
|
|
18
158
|
|
|
159
|
+
エラーメッセージは表示されていません。
|
|
160
|
+
|
|
19
161
|
コマンドラインでrails cをしてTagList.allと入力するとuser_id: nilと表示されます。
|
|
20
162
|
|
|
21
163
|
本来はこのnilの部分にcurrent_user.id(ログイン中のユーザーのid)が入るようにしたいです。
|
|
22
164
|
|
|
165
|
+
|
|
166
|
+
|
|
167
|
+
|
|
168
|
+
|
|
169
|
+
### 該当のソースコード
|
|
170
|
+
|
|
171
|
+
|
|
172
|
+
|
|
173
|
+
```Ruby
|
|
174
|
+
|
|
175
|
+
class TagListsController < ApplicationController
|
|
176
|
+
|
|
177
|
+
before_action :set_tag_list, only: [:show, :edit, :update, :destroy]
|
|
178
|
+
|
|
179
|
+
|
|
180
|
+
|
|
181
|
+
def index
|
|
182
|
+
|
|
183
|
+
@tag_lists = TagList.where(user_id: current_user.id)
|
|
184
|
+
|
|
185
|
+
end
|
|
186
|
+
|
|
187
|
+
|
|
188
|
+
|
|
189
|
+
# GET /tag_lists/1
|
|
190
|
+
|
|
191
|
+
# GET /tag_lists/1.json
|
|
192
|
+
|
|
193
|
+
def show
|
|
194
|
+
|
|
195
|
+
end
|
|
196
|
+
|
|
197
|
+
|
|
198
|
+
|
|
199
|
+
# GET /tag_lists/new
|
|
200
|
+
|
|
201
|
+
def new
|
|
202
|
+
|
|
203
|
+
@tag_list = TagList.new
|
|
204
|
+
|
|
205
|
+
end
|
|
206
|
+
|
|
207
|
+
|
|
208
|
+
|
|
209
|
+
# GET /tag_lists/1/edit
|
|
210
|
+
|
|
211
|
+
def edit
|
|
212
|
+
|
|
213
|
+
end
|
|
214
|
+
|
|
215
|
+
|
|
216
|
+
|
|
217
|
+
# POST /tag_lists
|
|
218
|
+
|
|
219
|
+
# POST /tag_lists.json
|
|
220
|
+
|
|
221
|
+
def create
|
|
222
|
+
|
|
223
|
+
@tag_list = TagList.new(tag_list_params)
|
|
224
|
+
|
|
225
|
+
|
|
226
|
+
|
|
227
|
+
@tag_list.user_id = current_user.id
|
|
228
|
+
|
|
229
|
+
#@tag_list.user_id = tag_list.list.user_id
|
|
230
|
+
|
|
231
|
+
|
|
232
|
+
|
|
233
|
+
respond_to do |format|
|
|
234
|
+
|
|
235
|
+
if @tag_list.save
|
|
236
|
+
|
|
237
|
+
format.html { redirect_to @tag_list, notice: 'Tag list was successfully created.' }
|
|
238
|
+
|
|
239
|
+
format.json { render :show, status: :created, location: @tag_list }
|
|
240
|
+
|
|
241
|
+
else
|
|
242
|
+
|
|
243
|
+
format.html { render :new }
|
|
244
|
+
|
|
245
|
+
format.json { render json: @tag_list.errors, status: :unprocessable_entity }
|
|
246
|
+
|
|
247
|
+
end
|
|
248
|
+
|
|
249
|
+
end
|
|
250
|
+
|
|
251
|
+
end
|
|
252
|
+
|
|
253
|
+
|
|
254
|
+
|
|
255
|
+
# PATCH/PUT /tag_lists/1
|
|
256
|
+
|
|
257
|
+
# PATCH/PUT /tag_lists/1.json
|
|
258
|
+
|
|
259
|
+
def update
|
|
260
|
+
|
|
261
|
+
respond_to do |format|
|
|
262
|
+
|
|
263
|
+
if @tag_list.update(tag_list_params)
|
|
264
|
+
|
|
265
|
+
format.html { redirect_to @tag_list, notice: 'Tag list was successfully updated.' }
|
|
266
|
+
|
|
267
|
+
format.json { render :show, status: :ok, location: @tag_list }
|
|
268
|
+
|
|
269
|
+
else
|
|
270
|
+
|
|
271
|
+
format.html { render :edit }
|
|
272
|
+
|
|
273
|
+
format.json { render json: @tag_list.errors, status: :unprocessable_entity }
|
|
274
|
+
|
|
275
|
+
end
|
|
276
|
+
|
|
277
|
+
end
|
|
278
|
+
|
|
279
|
+
end
|
|
280
|
+
|
|
281
|
+
|
|
282
|
+
|
|
283
|
+
# DELETE /tag_lists/1
|
|
284
|
+
|
|
285
|
+
# DELETE /tag_lists/1.json
|
|
286
|
+
|
|
287
|
+
def destroy
|
|
288
|
+
|
|
289
|
+
@tag_list.destroy
|
|
290
|
+
|
|
291
|
+
respond_to do |format|
|
|
292
|
+
|
|
293
|
+
format.html { redirect_to tag_lists_url, notice: 'Tag list was successfully destroyed.' }
|
|
294
|
+
|
|
295
|
+
format.json { head :no_content }
|
|
296
|
+
|
|
297
|
+
end
|
|
298
|
+
|
|
299
|
+
end
|
|
300
|
+
|
|
301
|
+
|
|
302
|
+
|
|
303
|
+
private
|
|
304
|
+
|
|
305
|
+
# Use callbacks to share common setup or constraints between actions.
|
|
306
|
+
|
|
307
|
+
def set_tag_list
|
|
308
|
+
|
|
309
|
+
@tag_list = TagList.find(params[:id])
|
|
310
|
+
|
|
311
|
+
end
|
|
312
|
+
|
|
313
|
+
|
|
314
|
+
|
|
315
|
+
# Never trust parameters from the scary internet, only allow the white list through.
|
|
316
|
+
|
|
317
|
+
def tag_list_params
|
|
318
|
+
|
|
319
|
+
params.require(:tag_list).permit(:tag_id, :list_id)
|
|
320
|
+
|
|
321
|
+
end
|
|
322
|
+
|
|
323
|
+
end
|
|
324
|
+
|
|
23
325
|
```
|
|
24
326
|
|
|
25
|
-
|
|
327
|
+
|
|
26
|
-
|
|
27
|
-
|
|
328
|
+
|
|
28
|
-
|
|
29
|
-
|
|
30
|
-
|
|
31
|
-
|
|
329
|
+
|
|
32
|
-
|
|
33
|
-
|
|
34
|
-
|
|
35
|
-
```ここに言語名を入力
|
|
36
|
-
|
|
37
|
-
ソースコード
|
|
38
|
-
|
|
39
|
-
```
|
|
40
|
-
|
|
41
|
-
|
|
42
|
-
|
|
43
|
-
### 試したこと
|
|
44
|
-
|
|
45
|
-
|
|
46
|
-
|
|
47
|
-
ここに問題に対して試したことを記載してください。
|
|
48
330
|
|
|
49
331
|
|
|
50
332
|
|
|
@@ -52,4 +334,4 @@
|
|
|
52
334
|
|
|
53
335
|
|
|
54
336
|
|
|
55
|
-
|
|
337
|
+
rails 5.1.7
|