ruby-on-rails - Capistrano SQLite3::SQLException:没有这样的表:用户

Question

Ubuntu 16，ruby，3.2，框架 Sinatra。

上限部署后未在生产中运行迁移。

我使用命令 cap deploy production 进行部署我的项目到远程服务器。

在 db 的 app.rb 连接设置中:

#app.rb

require "sinatra"
require "pry"
require "sinatra/activerecord"
require 'sinatra/flash'
require 'sinatra/base'
require "./models/user"
require "./models/game_counter"
require "./models/stash"
require "json"
require "pony"
require 'logger'


enable :static
enable :sessions


set :public_folder, File.dirname(__FILE__) + '/assets'

set :database, { adapter: "sqlite3", database: "sudoku_database.sqlite3" }

gem 文件

gem "rake"
gem "heroku"
gem "sinatra"
gem "sinatra-activerecord"
gem "sinatra-flash"
gem "sqlite3"
gem "pg"
gem "bcrypt"
gem "pry"
gem "pony"
gem "capistrano", '~> 3.1.0'
gem "capistrano-bundler", '~> 1.1.2'
gem 'passenger'

我在远程服务器上安装了 sqllite。

安装和定制的 capistrano。

配置/部署.rb

lock '3.4.0'

set :application, 'projectname'
set :repo_url, 'git@github.com:user/projectname.git'

set :deploy_to, '/home/deploy/projectname'

set :linked_dirs, %w{ log }


namespace :deploy do

  desc 'Restart application'
  task :restart do
    on roles(:app), in: :sequence, wait: 5 do
      execute :touch, release_path.join('tmp/restart.txt')
    end
  end

  after :publishing, 'deploy:restart'
  after :finishing, 'deploy:cleanup'
end

配置/生产.rb

set :stage, :production

server '188.177.76.190', user: 'deploy', roles: %w{web app db}, port: 2503

当我在浏览器中运行网站时，在日志中 nginx 显示错误:

2016-12-13 10:40:58 - ActiveRecord::StatementInvalid - SQLite3::SQLException: no such table: users: SELECT "users".* FROM "user 

请帮助我，不能理解为什么不在生产环境中运行数据库迁移以及我如何解决这个问题？

Answer 1

迁移没有 capistrano 任务。您应该将其添加到您的部署配置中。像这样(这取决于你的配置):

task :migrate do
  on roles(:app) do
    within release_path do
      with rack_env: fetch(:rack_env) do
        execute :rake, "db:migrate"
      end
    end
  end
end

after 'deploy', 'migrate'