Create an ActiveRecord-backed Schema model

Gemfile

@@ -29,12 +29,12 @@ gem 'jbuilder', '~> 2.9'
 gem 'sdoc', '~> 2.1', group: :doc
 
 gem 'foreman', '~> 0.87'
+gem 'pg', '~> 0.18'
 
 group :production do
   gem 'thin', '~> 1.8'
   gem 'rails_12factor', '~> 0.0'
   gem 'puma', '~> 5.2'
-  gem 'pg', '~> 1.2'
 end
 
 group :development, :test do

Gemfile.lock

@@ -522,7 +522,7 @@ GEM
     open_uri_redirections (0.2.1)
     optimist (3.0.1)
     origin (2.3.1)
-    pg (1.2.3)
+    pg (0.21.0)
     poltergeist (1.6.0)
       capybara (~> 2.1)
       cliver (~> 0.3.1)
@@ -822,7 +822,7 @@ DEPENDENCIES
   mongo (~> 2.1)!
   mongoid (~> 5.1)
   nokogiri (~> 1.10)
-  pg (~> 1.2)
+  pg (~> 0.18)
   poltergeist (~> 1.6)
   pry (~> 0.14)
   puma (~> 5.2)

app/models/schema.rb

@@ -0,0 +1,2 @@
+class Schema < ActiveRecord::Base
+end

db/migrate/20210422223019_create_schemas.rb

@@ -0,0 +1,9 @@
+class CreateSchemas < ActiveRecord::Migration
+  def change
+    create_table :schemas do |t|
+      t.string :url
+
+      t.timestamps null: false
+    end
+  end
+end

db/schema.rb

@@ -11,6 +11,12 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 0) do
+ActiveRecord::Schema.define(version: 20210422223019) do
+
+  create_table "schemas", force: :cascade do |t|
+    t.string   "url"
+    t.datetime "created_at", null: false
+    t.datetime "updated_at", null: false
+  end
 
 end

spec/models/schema_spec.rb

@@ -0,0 +1,5 @@
+require 'spec_helper'
+
+RSpec.describe Schema, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end