$ mkdir myapp
$ cd myapp
$ touch {Dockerfile,Gemfile,Gemfile.lock,entrypoint.sh,docker-compose.yml}
$ ls
Dockerfile Gemfile.lock entrypoint.sh
Gemfile docker-compose.yml
ファイルの中身を記述してく
Rails6ではwebpackerが搭載されyarnのインストールが必要
Dockerfile
FROMruby:2.6.6RUNcurl-sShttps://dl.yarnpkg.com/debian/pubkey.gpg | apt-key add - \&&echo"deb https://dl.yarnpkg.com/debian/ stable main"|tee/etc/apt/sources.list.d/yarn.listRUNapt-getupdate-qq&&apt-getinstall-ynodejspostgresql-clientyarnRUNmkdir/myappWORKDIR/myappCOPYGemfile/myapp/GemfileCOPYGemfile.lock/myapp/Gemfile.lockRUNbundleinstallCOPY./myapp# Add a script to be executed every time the container starts.
COPYentrypoint.sh/usr/bin/RUNchmod+x/usr/bin/entrypoint.shENTRYPOINT["entrypoint.sh"]EXPOSE3000# Start the main process.
Gemfile
source'https://rubygems.org'gem'rails','6.0.3'
entrypoint.sh
#!/bin/bash
set -e
# Remove a potentially pre-existing server.pid for Rails.
rm -f /myapp/tmp/pids/server.pid
# Then exec the container's main process (what's set as CMD in the Dockerfile).
exec "$@"
TypeError:
no implicit conversion of ActiveStorage::Attached::Many into String
# ./spec/requests/posts_spec.rb:19:in `block (3 levels) in <top (required)>'
ソースコード
posts_spec.rb
equire 'rails_helper'
describe PostsController, type: :request do
before do
@post = FactoryBot.create(:post)
end
describe 'GET #index' do
it 'indexアクションにリクエストすると正常にレスポンスが返ってくる' do
get posts_path
expect(response.status).to eq 200
end
it 'indexアクションにリクエストするとレスポンスに投稿済みのテキストが存在する' do
get posts_path
expect(response.body).to include(@post.name)
end
it 'indexアクションにリクエストするとレスポンスに投稿済みの画像が存在する' do
get posts_path
expect(response.body).to include("@post.images")
end
it 'indexアクションにリクエストするとレスポンスに投稿検索フォームが存在する' do
get posts_path
expect(response.body).to include('')
end
end
end
posts.rb
FactoryBot.define do
factory :post do
name { '投稿名' }
post_text { '投稿文' }
association :user
after(:build) do |post|
post.images.attach(io: File.open('public/test_image.png'), filename: 'test_image.png')
end
end
end
Product.pluck(:name)=>["Ruby on Rails Tote","Ruby on Rails Bag","Ruby on Rails Baseball Jersey","Ruby on Rails Jr. Spaghetti","Ruby on Rails Ringer T-Shirt","Ruby Baseball Jersey","Apache Baseball Jersey","Ruby on Rails Mug","Ruby on Rails Stein"]
といったようにProductモデル内のnameカラムを一覧表示することができます。
Product.pluck(:id,:name)=>[[1,"Ruby on Rails Tote"],[2,"Ruby on Rails Bag"],[3,"Ruby on Rails Baseball Jersey"],[4,"Ruby on Rails Jr. Spaghetti"],[5,"Ruby on Rails Ringer T-Shirt"],[6,"Ruby Baseball Jersey"],[7,"Apache Baseball Jersey"],[8,"Ruby on Rails Mug"],[9,"Ruby on Rails Stein"]]
