Improve the demo experience

rails-app/db/migrate/20190322181705_devise_create_users.rb

@@ -0,0 +1,48 @@
+# frozen_string_literal: true
+
+class DeviseCreateUsers < ActiveRecord::Migration[5.2]
+  def change
+    create_table :users do |t|
+      t.string :full_name, null: false
+      t.string :phone
+      t.string :avatar
+
+      ## Database authenticatable
+      t.string :email,              null: false, default: ""
+      t.string :encrypted_password, null: false, default: ""
+
+      ## Recoverable
+      t.string   :reset_password_token
+      t.datetime :reset_password_sent_at
+
+      ## Rememberable
+      t.datetime :remember_created_at
+
+      ## Trackable
+      # t.integer  :sign_in_count, default: 0, null: false
+      # t.datetime :current_sign_in_at
+      # t.datetime :last_sign_in_at
+      # t.inet     :current_sign_in_ip
+      # t.inet     :last_sign_in_ip
+
+      ## Confirmable
+      # t.string   :confirmation_token
+      # t.datetime :confirmed_at
+      # t.datetime :confirmation_sent_at
+      # t.string   :unconfirmed_email # Only if using reconfirmable
+
+      ## Lockable
+      # t.integer  :failed_attempts, default: 0, null: false # Only if lock strategy is :failed_attempts
+      # t.string   :unlock_token # Only if unlock strategy is :email or :both
+      # t.datetime :locked_at
+
+
+      t.timestamps null: false
+    end
+
+    add_index :users, :email,                unique: true
+    add_index :users, :reset_password_token, unique: true
+    # add_index :users, :confirmation_token,   unique: true
+    # add_index :users, :unlock_token,         unique: true
+  end
+end

rails-app/db/migrate/20190322181706_devise_create_customers.rb

@@ -0,0 +1,47 @@
+# frozen_string_literal: true
+
+class DeviseCreateCustomers < ActiveRecord::Migration[5.2]
+  def change
+    create_table :customers do |t|
+      t.string :full_name, null: false
+      t.string :phone
+
+      ## Database authenticatable
+      t.string :email,              null: false, default: ""
+      t.string :encrypted_password, null: false, default: ""
+
+      ## Recoverable
+      t.string   :reset_password_token
+      t.datetime :reset_password_sent_at
+
+      ## Rememberable
+      t.datetime :remember_created_at
+
+      ## Trackable
+      # t.integer  :sign_in_count, default: 0, null: false
+      # t.datetime :current_sign_in_at
+      # t.datetime :last_sign_in_at
+      # t.inet     :current_sign_in_ip
+      # t.inet     :last_sign_in_ip
+
+      ## Confirmable
+      # t.string   :confirmation_token
+      # t.datetime :confirmed_at
+      # t.datetime :confirmation_sent_at
+      # t.string   :unconfirmed_email # Only if using reconfirmable
+
+      ## Lockable
+      # t.integer  :failed_attempts, default: 0, null: false # Only if lock strategy is :failed_attempts
+      # t.string   :unlock_token # Only if unlock strategy is :email or :both
+      # t.datetime :locked_at
+
+
+      t.timestamps null: false
+    end
+
+    add_index :customers, :email,                unique: true
+    add_index :customers, :reset_password_token, unique: true
+    # add_index :customers, :confirmation_token,   unique: true
+    # add_index :customers, :unlock_token,         unique: true
+  end
+end

rails-app/db/migrate/20190322181710_create_products.rb

@@ -0,0 +1,12 @@
+class CreateProducts < ActiveRecord::Migration[5.2]
+  def change
+    create_table :products do |t|
+      t.string :name
+      t.text :description
+      t.decimal :price, precision: 7, scale: 2
+      t.belongs_to :user, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

rails-app/db/migrate/20190322200743_purchases.rb

@@ -0,0 +1,12 @@
+class Purchases < ActiveRecord::Migration[5.2]
+  def change
+    create_table :purchases do |t|
+      t.references :customer, foreign_key: true
+      t.references :product, foreign_key: true
+      t.string :sale_type
+      t.integer :quantity
+      t.datetime :due_date
+      t.datetime :returned
+    end
+  end
+end

rails-app/db/migrate/20190405042247_add_search_column.rb

@@ -0,0 +1,33 @@
+class AddSearchColumn < ActiveRecord::Migration[5.1]
+  def self.up
+    add_column :products, :tsv, :tsvector
+    add_index :products, :tsv, using: "gin"
+
+    say_with_time("Adding trigger to update the ts_vector column") do
+      execute <<-SQL
+        CREATE FUNCTION products_tsv_trigger() RETURNS trigger AS $$
+        begin
+          new.tsv :=
+          setweight(to_tsvector('pg_catalog.english', coalesce(new.name,'')), 'A') ||
+          setweight(to_tsvector('pg_catalog.english', coalesce(new.description,'')), 'B');
+          return new;
+        end
+        $$ LANGUAGE plpgsql;
+
+        CREATE TRIGGER tsvectorupdate BEFORE INSERT OR UPDATE ON products FOR EACH ROW EXECUTE PROCEDURE products_tsv_trigger();
+        SQL
+      end
+  end
+
+  def self.down
+    say_with_time("Removing trigger to update the tsv column") do
+      execute <<-SQL
+        DROP TRIGGER tsvectorupdate
+        ON products
+        SQL
+    end
+
+    remove_index :products, :tsv
+    remove_column :products, :tsv
+  end
+end