From bffbab8fbc8e0691f3d8375531a32ddb597d1edd Mon Sep 17 00:00:00 2001
From: James Dinkel <jamd9000@gmail.com>
Date: Thu, 28 Dec 2023 18:36:49 -0600
Subject: [PATCH] Added sequel with example setup

---
 Gemfile                           |  1 +
 README.md                         |  2 +-
 Rakefile                          | 33 +++++++++++++++++++++++++++++++
 config.ru                         |  3 ++-
 db.rb                             |  4 ++++
 migrate/001_create_users_table.rb | 11 +++++++++++
 models.rb                         | 14 +++++++++++++
 models/user.rb                    |  3 +++
 views/index.erb                   |  2 +-
 9 files changed, 70 insertions(+), 3 deletions(-)
 create mode 100644 Rakefile
 create mode 100644 db.rb
 create mode 100644 migrate/001_create_users_table.rb
 create mode 100644 models.rb
 create mode 100644 models/user.rb

diff --git a/Gemfile b/Gemfile
index 6e8b26c..b668a39 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,6 +5,7 @@ gem 'rack-unreloader'
 gem 'tilt'
 gem 'erubi'
 gem 'sequel'
+gem 'rake'
 
 # Change to whatever database you plan to use
 gem 'sqlite3'
diff --git a/README.md b/README.md
index e8d83d1..159cce8 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ Will need ruby; install it via package manager or a ruby manager like rbenv/ruby
 With this example, will basically just ignore the project's Gemfile.  Debian 12 has a pretty current ruby version so just using it.
 
 ```
-sudo apt install ruby ruby-rack puma ruby-erubi ruby-tilt ruby-sequel ruby-sqlite3
+sudo apt install ruby ruby-rack puma ruby-erubi ruby-tilt ruby-sequel ruby-sqlite3 rake
 sudo gem install roda rack-unreloader
 ```
 
diff --git a/Rakefile b/Rakefile
new file mode 100644
index 0000000..4a4ce07
--- /dev/null
+++ b/Rakefile
@@ -0,0 +1,33 @@
+namespace :db do
+
+  migrator = lambda do |version|
+    require_relative 'db'
+    Sequel.extension :migration
+    Sequel::Migrator.apply(DB, 'migrate', version)
+  end
+
+  namespace :migrate do
+
+    desc "Perform migration up to latest migration available"
+    task :up do
+      migrator.call(nil)
+    end
+
+    desc "Perform migration all the way down (erase all data)"
+    task :down do
+      migrator.call(0)
+    end
+
+  end
+
+  desc "Erase all data, then bring back to latest migration"
+  task :reset do
+    migrator.call(0)
+    Sequel::Migrator.apply(DB, 'migrate')
+  end
+  
+  #desc "Migrate to a specific version"
+  #task :migrate do |version|
+  #end
+
+end
diff --git a/config.ru b/config.ru
index 4e24994..1af6d15 100644
--- a/config.ru
+++ b/config.ru
@@ -3,7 +3,8 @@ dev = ENV['RACK_ENV'] == 'development'
 
 require 'rack/unreloader'
 
-Unreloader = Rack::Unreloader.new(:subclasses=>%w'Roda', :reload=>dev){App}
+Unreloader = Rack::Unreloader.new(:subclasses=>%w'Roda Sequel::Model', reload: dev, autoload: dev){App}
+Unreloader.require './models.rb'
 Unreloader.require './app.rb'
 
 run(dev ? Unreloader : App)
diff --git a/db.rb b/db.rb
new file mode 100644
index 0000000..5c72eb9
--- /dev/null
+++ b/db.rb
@@ -0,0 +1,4 @@
+# frozen_string_literal: true
+require 'sequel/core'
+
+DB = Sequel.connect('sqlite://temp.db')
diff --git a/migrate/001_create_users_table.rb b/migrate/001_create_users_table.rb
new file mode 100644
index 0000000..29d513d
--- /dev/null
+++ b/migrate/001_create_users_table.rb
@@ -0,0 +1,11 @@
+# frozen_string_literal: true
+
+Sequel.migration do
+  change do
+    create_table(:users) do
+      primary_key :id
+      String :name, unique: true, null: false
+    end
+  end
+end
+
diff --git a/models.rb b/models.rb
new file mode 100644
index 0000000..33c6865
--- /dev/null
+++ b/models.rb
@@ -0,0 +1,14 @@
+# frozen_string_literal: true
+require_relative 'db'
+require 'sequel/model'
+
+if ENV['RACK_ENV'] == 'development'
+  Sequel::Model.cache_associations = false
+end
+
+unless defined?(Unreloader)
+  require 'rack/unreloader'
+  Unreloader = Rack::Unreloader.new(reload: false, autoload: !ENV['NO_AUTOLOAD'])
+end
+
+Unreloader.autoload('models'){|f| Sequel::Model.send(:camelize, File.basename(f).sub(/\.rb\z/, ''))}
diff --git a/models/user.rb b/models/user.rb
new file mode 100644
index 0000000..a4f2fa1
--- /dev/null
+++ b/models/user.rb
@@ -0,0 +1,3 @@
+# frozen_string_literal: true
+class User < Sequel::Model
+end
diff --git a/views/index.erb b/views/index.erb
index 4762d4c..31b3b2d 100644
--- a/views/index.erb
+++ b/views/index.erb
@@ -1,3 +1,3 @@
 <p class="subtitle is-3">
-  Welcome to my new page!
+  Welcome to my new page!  Running in <%= ENV['RACK_ENV'] %> mode!
 </p>