Capistrano SQLite3::SQLException：没有这样的 table：用户

Question

Ubuntu16，ruby，3.2，框架Sinatra。

cap 部署后未运行ning 生产迁移。

我使用命令 cap deploy production 将我的项目部署到远程服务器。

在 app.rb 数据库的连接设置中：

#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" }

Gemfile

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。

安装并定制了 capistrano。

config/deploy.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

config/production.rb

set :stage, :production

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

当我运行网站在浏览器中，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，无法理解为什么不运行宁迁移生产数据库以及我如何解决这个问题？

Answer 1

转到您的实时应用程序并在生产环境中迁移服务器上的数据库。

rake db:migrate RAILS_ENV=production

Answer 2

没有用于迁移的 capistrano 任务。您应该将其添加到部署配置中。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'

Capistrano SQLite3::SQLException：没有这样的 table：用户

Capistrano SQLite3::SQLException: no such table: users

ruby

sqlite

ruby-on-rails

sinatra

digital-ocean