Code for nevernote app (MVP)

Author: tannerwelsh

session-notes/2015-02-21/nevernote/Gemfile

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+source 'https://rubygems.org'
+
+gem 'datamapper'

session-notes/2015-02-21/nevernote/Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    addressable (2.3.7)
+    bcrypt (3.1.10)
+    bcrypt-ruby (3.1.5)
+      bcrypt (>= 3.1.3)
+    datamapper (1.2.0)
+      dm-aggregates (~> 1.2.0)
+      dm-constraints (~> 1.2.0)
+      dm-core (~> 1.2.0)
+      dm-migrations (~> 1.2.0)
+      dm-serializer (~> 1.2.0)
+      dm-timestamps (~> 1.2.0)
+      dm-transactions (~> 1.2.0)
+      dm-types (~> 1.2.0)
+      dm-validations (~> 1.2.0)
+    dm-aggregates (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-constraints (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-core (1.2.1)
+      addressable (~> 2.3)
+    dm-migrations (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-serializer (1.2.2)
+      dm-core (~> 1.2.0)
+      fastercsv (~> 1.5)
+      json (~> 1.6)
+      json_pure (~> 1.6)
+      multi_json (~> 1.0)
+    dm-timestamps (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-transactions (1.2.0)
+      dm-core (~> 1.2.0)
+    dm-types (1.2.2)
+      bcrypt-ruby (~> 3.0)
+      dm-core (~> 1.2.0)
+      fastercsv (~> 1.5)
+      json (~> 1.6)
+      multi_json (~> 1.0)
+      stringex (~> 1.4)
+      uuidtools (~> 2.1)
+    dm-validations (1.2.0)
+      dm-core (~> 1.2.0)
+    fastercsv (1.5.5)
+    json (1.8.2)
+    json_pure (1.8.2)
+    multi_json (1.10.1)
+    stringex (1.5.1)
+    uuidtools (2.1.5)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  datamapper

session-notes/2015-02-21/nevernote/models.rb

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+require 'data_mapper'
+
+# DataMapper::Logger.new($stdout, :debug)
+
+DataMapper.setup(:default, 'sqlite:nevernote.db')
+
+class User
+  include DataMapper::Resource
+
+  property :id, Serial
+  property :username, String, unique: true, required: true
+  property :password, BCryptHash, required: true
+
+  has n, :notebooks
+  has n, :notes, through: :notebooks
+end
+
+class Note
+  include DataMapper::Resource
+
+  property :id, Serial
+  property :title, String, required: true
+  property :content, Text, default: "Blank note"
+
+  belongs_to :notebook
+  has 1, :user, through: :notebook
+
+  has n, :taggings # SELECT * FROM taggings WHERE note_id = self.id;
+  has n, :tags, through: :taggings
+end
+
+class Notebook
+  include DataMapper::Resource
+
+  property :id, Serial
+  property :name, String, required: true
+
+  # validate uniqueness of user-notebook name combination
+
+  belongs_to :user
+  has n, :notes
+end
+
+class Tagging
+  include DataMapper::Resource
+
+  property :id, Serial
+  belongs_to :note
+  belongs_to :tag
+end
+
+class Tag
+  include DataMapper::Resource
+
+  property :id, Serial
+  property :name, String, length: 30, required: true, unique: true
+
+  has n, :taggings
+  has n, :notes, through: :taggings
+end
+
+DataMapper.finalize
+DataMapper.auto_migrate!

session-notes/2015-02-21/nevernote/nevernote.db

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+require './models.rb'
+
+Note.all.destroy # start from a blanks slate
+User.all.destroy
+Notebook.all.destroy
+Tag.all.destroy
+Tagging.all.destroy
+
+joe = User.create(username: "Joe", password: "beans")
+
+p User.count == 1
+
+recipes = Notebook.create(name: "Recipes", user: joe)
+
+
+attrs = {name: "Recipes", user: joe}
+n = Notebook.new
+n.name = attrs[:name]
+n.user = attrs[:user]
+n.save
+
+p Notebook.count == 1
+
+# As a user, I want to keep a store of notes.
+bkfst = Note.new(title: "Breakfast ideas", content: "truffle oil egg sandwich")
+bkfst.notebook = recipes
+bkfst.save
+
+p Note.count == 1
+
+# As a user, I want to search for notes by their title.
+p Note.all(:title.like => "Breakfast %").first == bkfst
+
+# As a user, I want to organize notes into notebooks.
+p bkfst.notebook == recipes
+
+# As a user, I want to add tags to notes.
+incomplete = Tag.create(name: "incomplete")
+bkfst.tags << incomplete
+bkfst.save
+
+p joe.notebooks
+p joe.notes
+p joe.notes.first.tags
+# As a user, I want to see all notes in a notebook.
+# p recipes.notes
+
+# As a user, I want to see all notes that have a particular tag.
+# p incomplete.notes