編集履歴

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schema.rbの追記

2021/02/17 10:21

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@@ -49,5 +49,87 @@
   validates :name, presence: true
 end
+```
+##schema.rb
+```ここに言語を入力
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# This file is the source Rails uses to define your schema when running `bin/rails
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+ActiveRecord::Schema.define(version: 2021_02_15_175631) do
+  create_table "active_storage_attachments", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.string "name", null: false
+    t.string "record_type", null: false
+    t.bigint "record_id", null: false
+    t.bigint "blob_id", null: false
+    t.datetime "created_at", null: false
+    t.index ["blob_id"], name: "index_active_storage_attachments_on_blob_id"
+    t.index ["record_type", "record_id", "name", "blob_id"], name: "index_active_storage_attachments_uniqueness", unique: true
+  end
+  create_table "active_storage_blobs", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.string "key", null: false
+    t.string "filename", null: false
+    t.string "content_type"
+    t.text "metadata"
+    t.string "service_name", null: false
+    t.bigint "byte_size", null: false
+    t.string "checksum", null: false
+    t.datetime "created_at", null: false
+    t.index ["key"], name: "index_active_storage_blobs_on_key", unique: true
+  end
+  create_table "active_storage_variant_records", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.bigint "blob_id", null: false
+    t.string "variation_digest", null: false
+    t.index ["blob_id", "variation_digest"], name: "index_active_storage_variant_records_uniqueness", unique: true
+  end
+  create_table "posts", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.string "thumbnail"
+    t.string "title"
+    t.integer "version"
+    t.integer "code"
+    t.text "description"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+  end
+  create_table "profiles", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.bigint "user_id", null: false
+    t.string "name"
+    t.text "description"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.index ["user_id"], name: "index_profiles_on_user_id"
+  end
+  create_table "users", charset: "utf8mb4", collation: "utf8mb4_0900_ai_ci", force: :cascade do |t|
+    t.string "email", default: "", null: false
+    t.string "encrypted_password", default: "", null: false
+    t.string "reset_password_token"
+    t.datetime "reset_password_sent_at"
+    t.datetime "remember_created_at"
+    t.datetime "created_at", precision: 6, null: false
+    t.datetime "updated_at", precision: 6, null: false
+    t.string "name", default: "", null: false
+    t.text "description"
+    t.index ["email"], name: "index_users_on_email", unique: true
+    t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
+  end
+  add_foreign_key "active_storage_attachments", "active_storage_blobs", column: "blob_id"
+  add_foreign_key "active_storage_variant_records", "active_storage_blobs", column: "blob_id"
+  add_foreign_key "profiles", "users"
+end
 ```

修正

2021/02/17 10:21

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@@ -3,20 +3,18 @@
 ##エラー
 ```ここに言語を入力
-irb(main):003:0> User.destroy_all
+irb(main):001:0> User.destroy_all
   User Load (0.7ms)  SELECT `users`.* FROM `users`
   TRANSACTION (0.3ms)  BEGIN
-  ActiveStorage::Attachment Load (5.3ms)  SELECT `active_storage_attachments`.* FROM `active_storage_attachments` WHERE `active_storage_attachments`.`record_id` = 1 AND `active_storage_attachments`.`record_type` = 'User' AND `active_storage_attachments`.`name` = 'image' LIMIT 1
-  Profile Load (6.1ms)  SELECT `profiles`.* FROM `profiles` WHERE `profiles`.`user_id` = 1 LIMIT 1
-  ActiveStorage::Attachment Load (0.6ms)  SELECT `active_storage_attachments`.* FROM `active_storage_attachments` WHERE `active_storage_attachments`.`record_id` = 1 AND `active_storage_attachments`.`record_type` = 'Profile' AND `active_storage_attachments`.`name` = 'image' LIMIT 1
-  ActiveStorage::Attachment Destroy (0.6ms)  DELETE FROM `active_storage_attachments` WHERE `active_storage_attachments`.`id` = 20
-  Profile Destroy (0.5ms)  DELETE FROM `profiles` WHERE `profiles`.`id` = 1
-  User Destroy (1.9ms)  DELETE FROM `users` WHERE `users`.`id` = 1
-  TRANSACTION (2.7ms)  ROLLBACK
+  ActiveStorage::Attachment Load (0.6ms)  SELECT `active_storage_attachments`.* FROM `active_storage_attachments` WHERE `active_storage_attachments`.`record_id` = 1 AND `active_storage_attachments`.`record_type` = 'User' AND `active_storage_attachments`.`name` = 'image' LIMIT 1
+  Profile Load (0.5ms)  SELECT `profiles`.* FROM `profiles` WHERE `profiles`.`user_id` = 1 LIMIT 1
+  ActiveStorage::Attachment Load (0.5ms)  SELECT `active_storage_attachments`.* FROM `active_storage_attachments` WHERE `active_storage_attachments`.`record_id` = 1 AND `active_storage_attachments`.`record_type` = 'Profile' AND `active_storage_attachments`.`name` = 'image' LIMIT 1
+  ActiveStorage::Attachment Destroy (1.0ms)  DELETE FROM `active_storage_attachments` WHERE `active_storage_attachments`.`id` = 20
+  User Load (0.9ms)  SELECT `users`.* FROM `users` WHERE `users`.`profile_id` = 1 LIMIT 1
+  TRANSACTION (2.6ms)  ROLLBACK
 Traceback (most recent call last):
-        1: from (irb):3
-ActiveRecord::InvalidForeignKey (Mysql2::Error: Cannot delete or update a parent row: a foreign key constraint fails (`app_development`.`profiles`, CONSTRAINT `fk_rails_e424190865` FOREIGN KEY (`user_id`) REFERENCES `users` (`id`)))
+        1: from (irb):1
+ActiveRecord::StatementInvalid (Mysql2::Error: Unknown column 'users.profile_id' in 'where clause')
 ```
 ##post.rb
 ```ここに言語を入力
@@ -33,6 +31,9 @@
   validates :name, presence: true
   validates :description, presence: true
+  has_one :user, dependent: :destroy
 end
 ```
 ##user.rb