質問編集履歴
3
修正
test
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test
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@@ -2,9 +2,29 @@
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railsでSNSのようなサイトを作成しておりますが、
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投稿一覧画面でユーザー名等を表示したいのですが
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投稿一覧画面でユーザー名等を表示したいのですがエラーが発生してしまいます。
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rails g migration AddUserIdToPostsでpostsとuserを紐付ける用にマイグレーションファイルをを作成しました。
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```ここに言語を入力
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class AddUserIdToPosts < ActiveRecord::Migration[6.1]
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def change
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add_reference :posts, :user, foreign_key: true
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end
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end
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```
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2
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test
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test
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##実現したいこと
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##前提・実現したいこと
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railsでSNSのようなサイトを作成しておりますが、
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投稿一覧画面でユーザー名等を表示したいのですがうまくいかないです。
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belongs_to :userを付け rails cでPost.first.userを確認するとnilでした
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##エラー内容
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1
schema.rbを追記
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test
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@@ -218,6 +218,158 @@
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```
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##schema.rb
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```ここに言語を入力
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# This file is auto-generated from the current state of the database. Instead
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# of editing this file, please use the migrations feature of Active Record to
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# incrementally modify your database, and then regenerate this schema definition.
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#
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# This file is the source Rails uses to define your schema when running `bin/rails
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# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
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# be faster and is potentially less error prone than running all of your
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# migrations from scratch. Old migrations may fail to apply correctly if those
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# migrations use external dependencies or application code.
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#
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# It's strongly recommended that you check this file into your version control system.
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ActiveRecord::Schema.define(version: 2021_02_21_020851) do
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create_table "active_storage_attachments", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
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t.string "name", null: false
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t.string "record_type", null: false
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t.bigint "record_id", null: false
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t.bigint "blob_id", null: false
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t.datetime "created_at", null: false
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t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
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t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
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end
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create_table "active_storage_blobs", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
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t.string "key", null: false
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t.string "filename", null: false
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t.string "content_type"
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t.text "metadata"
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t.string "service_name", null: false
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t.bigint "byte_size", null: false
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t.string "checksum", null: false
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t.datetime "created_at", null: false
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t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
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end
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create_table "active_storage_variant_records", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
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t.bigint "blob_id", null: false
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t.string "variation_digest", null: false
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t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
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end
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create_table "posts", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
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t.string "thumbnail"
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t.string "title"
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t.integer "version"
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t.integer "code"
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t.text "description"
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t.datetime "created_at", precision: 6, null: false
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t.datetime "updated_at", precision: 6, null: false
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t.bigint "user_id"
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t.index ["user_id"], name: "index_posts_on_user_id"
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end
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create_table "users", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
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t.string "email", default: "", null: false
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t.string "encrypted_password", default: "", null: false
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t.string "reset_password_token"
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t.datetime "reset_password_sent_at"
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t.datetime "remember_created_at"
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t.datetime "created_at", precision: 6, null: false
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t.datetime "updated_at", precision: 6, null: false
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t.string "name", default: "", null: false
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t.text "description"
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t.index ["email"], name: "index_users_on_email", unique: true
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t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
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end
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add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
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362
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363
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add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
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364
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365
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add_foreign_key "posts", "users"
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366
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367
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end
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368
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369
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370
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371
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+
```
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372
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##views/posts/index.html.erb
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222
374
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223
375
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```ここに言語を入力
|