working on database parsing

app/builders/db_builder.rb

@@ -18,6 +18,7 @@ class DbBuilder
     # Note: @root_folder gets linked in on
     #       the first call to __build_folder
     __parse_folder_entries(parent: nil, entries: entries)
+    @db.save
   end
 
   protected

app/controllers/nilms_controller.rb

+# frozen_string_literal: true
+
+# controller for NILM objects
+class NilmsController < ApplicationController
+end

app/models/db.rb

@@ -3,4 +3,20 @@
 # Database object
 class Db < ActiveRecord::Base
   belongs_to :root_folder, foreign_key: 'db_folder_id', class_name: 'DbFolder'
+  belongs_to :nilm
+
+  def url
+    # return a custom URL if set
+    return @url unless @url.nil? || @url.empty?
+    # no default URL if no parent NILM available
+    return '--error, no parent NILM--' if nilm.nil?
+    # return the default URL"
+    "#{nilm.url}/nilmdb"
+  end
+
+  def as_json(options = {})
+    db = super(except: [:created_at, :updated_at])
+    db[:contents] = root_folder.as_json(options)
+    db
+  end
 end

app/models/db_file.rb

@@ -10,4 +10,8 @@ class DbFile < ActiveRecord::Base
     db_service.remove_file(path)
     destroy
   end
+
+  def as_json(_options = {})
+    super(except: [:created_at, :updated_at])
+  end
 end

app/models/db_folder.rb

@@ -14,4 +14,11 @@ class DbFolder < ActiveRecord::Base
     return false unless file.valid?
     true
   end
+
+  def as_json(_options = {})
+    folder = super(except: [:created_at, :updated_at])
+    folder[:subfolders] = subfolders.map(&:as_json)
+    folder[:files] = db_files.map(&:as_json)
+    folder
+  end
 end

app/models/nilm.rb

+# frozen_string_literal: true
+
+# NILM object
+class Nilm < ActiveRecord::Base
+  has_one :db
+end

app/services/create_nilm.rb

+# frozen_string_literal: true
+
+# Agent class for DbFolders
+class CreateNilm
+  attr_accessor :errors, :warnings, :nilm
+
+  def initialize
+    @errors = []
+    @warnings = []
+  end
+
+  def build(name:, url:, description: '')
+    @nilm = Nilm.new(name: name, url: url,
+                     description: description)
+    @nilm.save
+    db = Db.create(nilm: @nilm)
+    builder = DbBuilder.new(db: db)
+    adapter = DbAdapter.new(db.url)
+    builder.update_db(schema: adapter.schema)
+  end
+end

config/routes.rb

 Rails.application.routes.draw do
+  resources :nilms
   resources :dbs
   resources :db_streams
   resources :db_files

db/migrate/20160522180603_create_nilms.rb

+class CreateNilms < ActiveRecord::Migration
+  def change
+    create_table :nilms do |t|
+      t.string :name
+      t.string :description
+      t.string :url
+      t.timestamps null: false
+    end
+
+    add_column :dbs, :nilm_id, :integer
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20160520145007) do
+ActiveRecord::Schema.define(version: 20160522180603) do
 
   create_table "db_files", force: :cascade do |t|
     t.string   "name"
@@ -49,6 +49,15 @@ ActiveRecord::Schema.define(version: 20160520145007) do
     t.integer  "db_folder_id"
     t.datetime "created_at",   null: false
     t.datetime "updated_at",   null: false
+    t.integer  "nilm_id"
+  end
+
+  create_table "nilms", force: :cascade do |t|
+    t.string   "name"
+    t.string   "description"
+    t.string   "url"
+    t.datetime "created_at",  null: false
+    t.datetime "updated_at",  null: false
   end
 
 end

spec/controllers/nilms_controller_spec.rb

+# frozen_string_literal: true
+
+require 'rails_helper'
+
+RSpec.describe NilmsController, type: :controller do
+end

spec/factories/nilms.rb

+# frozen_string_literal: true
+
+FactoryGirl.define do
+  factory :nilm do
+  end
+end

spec/features/list_db_contents_spec.rb

@@ -2,15 +2,15 @@
 
 require 'rails_helper'
 
-helper = DbSchemaHelper.new
-simple_db = [
-  helper.entry('/folder1/f1_1',
-               metadata: { name: 'file1_1' }, stream_count: 4),
-  helper.entry('/folder1/f1_2',
-               metadata: { name: 'file1_2' }, stream_count: 5),
-  helper.entry('/folder2/f2_1', metadata: { name: 'file2_1' }),
-  helper.entry('/folder2/f2_2', metadata: { name: 'file2_2' })
-]
+# helper = DbSchemaHelper.new
+# simple_db = [
+#  helper.entry('/folder1/f1_1',
+#               metadata: { name: 'file1_1' }, stream_count: 4),
+#  helper.entry('/folder1/f1_2',
+#               metadata: { name: 'file1_2' }, stream_count: 5),
+#  helper.entry('/folder2/f2_1', metadata: { name: 'file2_1' }),
+#  helper.entry('/folder2/f2_2', metadata: { name: 'file2_2' })
+# ]
 
 RSpec.describe 'parse and display a database' do
   def update_with_schema(schema)

spec/models/nilm_spec.rb

+# frozen_string_literal: true
+require 'rails_helper'
+
+RSpec.describe 'Nilm' do
+  describe 'object' do
+    let(:nilm) { Nilm.new }
+    specify { expect(nilm).to respond_to(:name) }
+    specify { expect(nilm).to respond_to(:description) }
+    specify { expect(nilm).to respond_to(:url) }
+    specify { expect(nilm).to respond_to(:db) }
+  end
+end

spec/services/create_nilm_spec.rb

+# frozen_string_literal: true
+require 'rails_helper'
+
+test_nilm_url = 'http://nilm.secondary'
+
+RSpec.describe 'CreateNilm' do
+  describe 'build' do
+    it 'creates and populates a Db object' do
+      # mock the database builder
+      builder = instance_double(DbBuilder, update_db: '')
+      allow(DbBuilder).to receive(:new).and_return(builder)
+      adapter = instance_double(DbAdapter, schema: '')
+      allow(DbAdapter).to receive(:new).and_return(adapter)
+      # run the NILM creation
+      nilm_creator = CreateNilm.new
+      nilm_creator.build(name: 'test', url: test_nilm_url)
+      # verify NILM components are present
+      expect(nilm_creator.nilm).to be_present
+      expect(nilm_creator.nilm.db).to be_present
+      # ...and the database has been populated
+      expect(builder).to have_received(:update_db)
+    end
+  end
+end