ランキング機能（カウントのみ、表示はまだ）

#What
・profilesテーブルにpv_countカラム 追加
・usersコントローラーで、users/showにアクセスするたびにpv_countが１つずつ増えるように処理を記載
・リンクがつき次第、カウントが正常に確認できるか再確認する必要あり。
・リロードしてもpv数+1

#Why
・pv数を保存するため
・gem(impressionist)は、rails5系から更新されていないため、使うのをやめました。
charlotte-ruby/impressionist#279

app/controllers/users_controller.rb

@@ -9,6 +9,8 @@ def index
   def show
     @user = User.find(params[:id])
     @profile = @user.profile
+    @profile.pv_count += 1
+    @profile.update(pv_count: @profile.pv_count)
     # タグ全部取ってきます
     @tag_list = Tag.all
   end

db/migrate/20201018101705_add_pv_count_to_profiles.rb

@@ -0,0 +1,6 @@
+class AddPvCountToProfiles < ActiveRecord::Migration[6.0]
+  def change
+    # null:falseで初期値0
+    add_column :profiles, :pv_count, :integer, null: false
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 2020_10_11_124509) do
+ActiveRecord::Schema.define(version: 2020_10_18_101705) do
 
   create_table "cards", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8", force: :cascade do |t|
     t.bigint "user_id"
@@ -114,12 +114,13 @@
     t.string "twitter"
     t.datetime "created_at", precision: 6, null: false
     t.datetime "updated_at", precision: 6, null: false
-    t.string "color"
     t.string "sub_image"
     t.string "catch_copy"
     t.string "avatar_title"
     t.string "avatar_catch_copy"
     t.text "avatar_about"
+    t.string "color"
+    t.integer "pv_count", null: false
     t.index ["user_id"], name: "index_profiles_on_user_id"
   end
 
@@ -132,15 +133,13 @@
   create_table "users", options: "ENGINE=InnoDB DEFAULT CHARSET=utf8", force: :cascade do |t|
     t.string "email", default: "", null: false
     t.string "encrypted_password", default: "", null: false
-    t.string "name", 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 "nickname", null: false
     t.index ["email"], name: "index_users_on_email", unique: true
-    t.index ["name"], name: "index_users_on_name", unique: true
     t.index ["reset_password_token"], name: "index_users_on_reset_password_token", unique: true
   end
 

yarn.lock

@@ -15,15 +15,15 @@
   integrity sha512-725AQupWJZ8ba0jbKceeFblZTY90McUBWMwHhkFQ9q1zKPJ95GUktljFcgcsIVwRnTnRKlcYzfiNImg5G9m6ZQ==
 
 "@babel/core@^7.7.2":
-  version "7.12.1"
-  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.12.1.tgz#980b115a05929ef3ce1b6af9bf50e5a5cf668667"
-  integrity sha512-6bGmltqzIJrinwRRdczQsMhruSi9Sqty9Te+/5hudn4Izx/JYRhW1QELpR+CIL0gC/c9A7WroH6FmkDGxmWx3w==
+  version "7.12.3"
+  resolved "https://registry.yarnpkg.com/@babel/core/-/core-7.12.3.tgz#1b436884e1e3bff6fb1328dc02b208759de92ad8"
+  integrity sha512-0qXcZYKZp3/6N2jKYVxZv0aNCsxTSVCiK72DTiTYZAu7sjg73W0/aynWjMbiGd87EQL4WyA8reiJVh92AVla9g==
   dependencies:
     "@babel/code-frame" "^7.10.4"
     "@babel/generator" "^7.12.1"
     "@babel/helper-module-transforms" "^7.12.1"
     "@babel/helpers" "^7.12.1"
-    "@babel/parser" "^7.12.1"
+    "@babel/parser" "^7.12.3"
     "@babel/template" "^7.10.4"
     "@babel/traverse" "^7.12.1"
     "@babel/types" "^7.12.1"
@@ -228,9 +228,9 @@
   integrity sha512-YpJabsXlJVWP0USHjnC/AQDTLlZERbON577YUVO/wLpqyj6HAtVYnWaQaN0iUN+1/tWn3c+uKKXjRut5115Y2A==
 
 "@babel/helper-wrap-function@^7.10.4":
-  version "7.10.4"
-  resolved "https://registry.yarnpkg.com/@babel/helper-wrap-function/-/helper-wrap-function-7.10.4.tgz#8a6f701eab0ff39f765b5a1cfef409990e624b87"
-  integrity sha512-6py45WvEF0MhiLrdxtRjKjufwLL1/ob2qDJgg5JgNdojBAZSAKnAjkyOCNug6n+OBl4VW76XjvgSFTdaMcW0Ug==
+  version "7.12.3"
+  resolved "https://registry.yarnpkg.com/@babel/helper-wrap-function/-/helper-wrap-function-7.12.3.tgz#3332339fc4d1fbbf1c27d7958c27d34708e990d9"
+  integrity sha512-Cvb8IuJDln3rs6tzjW3Y8UeelAOdnpB8xtQ4sme2MSZ9wOxrbThporC0y/EtE16VAtoyEfLM404Xr1e0OOp+ow==
   dependencies:
     "@babel/helper-function-name" "^7.10.4"
     "@babel/template" "^7.10.4"
@@ -255,10 +255,10 @@
     chalk "^2.0.0"
     js-tokens "^4.0.0"
 
-"@babel/parser@^7.10.4", "@babel/parser@^7.12.1":
-  version "7.12.1"
-  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.12.1.tgz#dc03f543a0ed51396d4081463df66ecb3a2efa53"
-  integrity sha512-xjZsx0sBjb6J2+QkoHI69UeD2EWbsyUW0WyZKOoJ9sBrQLxfOApWEefR9dIVOYJVj97VRXnLKLDvnn3dPDNgww==
+"@babel/parser@^7.10.4", "@babel/parser@^7.12.1", "@babel/parser@^7.12.3":
+  version "7.12.3"
+  resolved "https://registry.yarnpkg.com/@babel/parser/-/parser-7.12.3.tgz#a305415ebe7a6c7023b40b5122a0662d928334cd"
+  integrity sha512-kFsOS0IbsuhO5ojF8Hc8z/8vEIOkylVBrjiZUbLTE3XFe0Qi+uu6HjzQixkFaqr0ZPAMZcBVxEwmsnsLPZ2Xsw==
 
 "@babel/plugin-proposal-async-generator-functions@^7.12.1":
   version "7.12.1"
@@ -926,9 +926,9 @@
   integrity sha512-tHq6qdbT9U1IRSGf14CL0pUlULksvY9OZ+5eEgl1N7t+OA3tGvNpxJCzuKQlsNgCVwbAs670L1vcVQi8j9HjnA==
 
 "@types/node@*":
-  version "14.11.8"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.11.8.tgz#fe2012f2355e4ce08bca44aeb3abbb21cf88d33f"
-  integrity sha512-KPcKqKm5UKDkaYPTuXSx8wEP7vE9GnuaXIZKijwRYcePpZFDVuy2a57LarFKiORbHOuTOOwYzxVxcUzsh2P2Pw==
+  version "14.11.10"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-14.11.10.tgz#8c102aba13bf5253f35146affbf8b26275069bef"
+  integrity sha512-yV1nWZPlMFpoXyoknm4S56y2nlTAuFYaJuQtYRAOU7xA/FJ9RY0Xm7QOkaYMMmr8ESdHIuUb6oQgR/0+2NqlyA==
 
 "@types/parse-json@^4.0.0":
   version "4.0.0"
@@ -2629,9 +2629,9 @@ [email protected]:
   integrity sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0=
 
 electron-to-chromium@^1.3.571:
-  version "1.3.581"
-  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.581.tgz#7f796fe92cdc18f5013769dc6f45f4536315a183"
-  integrity sha512-ALORbI23YkYJoVJWusSdmTq8vXH3TLFzniILE47uZkZOim135ZhoTCM7QlIuvmK78As5kLdANfy7kDIQvJ+iPw==
+  version "1.3.582"
+  resolved "https://registry.yarnpkg.com/electron-to-chromium/-/electron-to-chromium-1.3.582.tgz#1adfac5affce84d85b3d7b3dfbc4ade293a6ffc4"
+  integrity sha512-0nCJ7cSqnkMC+kUuPs0YgklFHraWGl/xHqtZWWtOeVtyi+YqkoAOMGuZQad43DscXCQI/yizcTa3u6B5r+BLww==
 
 elliptic@^6.5.3:
   version "6.5.3"
@@ -2678,9 +2678,9 @@ enhanced-resolve@^4.1.1, enhanced-resolve@^4.3.0:
     tapable "^1.0.0"
 
 entities@^2.0.0:
-  version "2.0.3"
-  resolved "https://registry.yarnpkg.com/entities/-/entities-2.0.3.tgz#5c487e5742ab93c15abb5da22759b8590ec03b7f"
-  integrity sha512-MyoZ0jgnLvB2X3Lg5HqpFmn1kybDiIfEQmKzTb5apr51Rb+T3KdmMiqa70T+bhGnyv7bQ6WMj2QMHpGMmlrUYQ==
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-2.1.0.tgz#992d3129cf7df6870b96c57858c249a120f8b8b5"
+  integrity sha512-hCx1oky9PFrJ611mf0ifBLBRW8lUUVRlFolb5gWRfIELabBlbp9xZvrqZLZAs+NxFnbfQoeGd8wDkygjg7U85w==
 
 errno@^0.1.3, errno@~0.1.7:
   version "0.1.7"