0.01
Repository is archived
No commit activity in last 3 years
No release in over 3 years
Motion-Loco is a library for RubyMotion that includes Ember.js inspired bindings, computed properties, and observers. Also included is a set of views that are easier to position and size.
2005
2006
2007
2008
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
 Dependencies

Development

>= 0

Runtime

 Project Readme

Motion-Loco

Motion-Loco is a library for RubyMotion that includes Ember.js inspired bindings, computed properties, and observers. And Ember-Data inspired data adapters!

What's New!

October 20th, 2013

Motion-Loco 0.4.0 is going to be a complete rewrite, and it's going to be awesome. You can check out the progress here:

https://github.com/brianpattison/motion-loco/tree/new_hotness

Installation

Add this line to your application's Gemfile:

gem 'motion-loco'

And then execute:

$ bundle

Or install it yourself as:

$ gem install motion-loco

Usage

Computed Properties

Computed properties are properties that are computed from one or multiple properties. They beat out using a method because they can be observed like any other property.

class Person < Loco::Model
  property :first_name, :string
  property :last_name, :string
  
  # Computed property for full name that watches for changes
  # in the object's first_name and last_name properties.
  property :full_name, lambda{|object|
    "#{object.first_name} #{object.last_name}"
  }.property(:first_name, :last_name)
end

@person = Person.new(
  first_name: 'Brian',
  last_name:  'Pattison'
)

@person.full_name # "Brian Pattison"

Bindings

Bindings are used to link the property of an object to a property of another object.

class Person < Loco::Model
  property :first_name, :string
  property :last_name, :string
  property :full_name, lambda{|object|
    "#{object.first_name} #{object.last_name}"
  }.property(:first_name, :last_name)
end

@person = Person.new(
  first_name: 'Brian',
  last_name:  'Pattison'
)

@label = Loco::UI::Label.alloc.initWithFrame(
  textBinding: [@person, 'full_name'],
  height: 30,
  top: 20,
  width: 200
)

@label.text # "Brian Pattison"

Loco::Controller

A Loco::Controller is a singleton class that is especially useful for binding objects' properties to view properties.

class PersonController < Loco::Controller
  property :content
end

@label = Loco::UI::Label.alloc.initWithFrame(
  textBinding: 'PersonController.content.full_name',
  height: 30,
  top: 20,
  width: 200
)

@person = Person.new(
  first_name: 'Brian',
  last_name:  'Pattison'
)

PersonController.content = @person

@label.text # "Brian Pattison"

Loco::FixtureAdapter

class Show < Loco::Model
  adapter 'Loco::FixtureAdapter'
  property :title, :string
end

@show = Show.find(2) # Loads from `resources/fixtures/plural_class_name.json`
@show.title          # "Brian's Video Clip Show"

Loco::RESTAdapter

class Post < Loco::Model
  adapter 'Loco::RESTAdapter', 'http://localhost:3000'
  property :title, :string
  property :body, :string
end

# GET http://localhost:3000/posts/1.json
# {
#   "post": {
#     "id": 1,
#     "title": "My first blog post",
#     "body": "Check out RubyMotion!"
#   }
# }
@post = Post.find(1) do |post|
  post.id    # 1
  post.title # "My first blog post"
  post.body  # "Check out RubyMotion!"
end

# GET http://localhost:3000/posts.json
# {
#   "posts": [
#     {
#       "id": 1,
#       "title": "My first blog post",
#       "body": "Check out RubyMotion!"
#     },
#     {
#       "id": 2,
#       "title": "And for my next post...",
#       "body": "Like RubyMotion and Ember.js? Check out Motion-Loco on GitHub."
#     }
#   ]
# }
@posts = Post.all do |posts|
  posts.length # 2
end

# Started POST "/posts.json"
# Processing by PostsController#create as JSON
# Parameters: {"post"=>{"title"=>"Loco::RESTAdapter can save!", "body"=>"Hopefully."}}
@post = Post.new(title: 'Loco::RESTAdapter can save!', body: 'Hopefully.')
@post.save do |post|
  post.id # Yay! It has an ID now!
end

Loco::SQLiteAdapter

class Player < Loco::Model
  adapter 'Loco::SQLiteAdapter'
  property :name, :string
  has_many :scores
end

class Score < Loco::Model
  adapter 'Loco::SQLiteAdapter'
  property :rank, :integer
  property :value, :integer
  belongs_to :player
end

@player = Player.new(name: 'Kirsten Pattison')
@player.save

@score = Score.new(rank: 1, value: 50000, player: @player)
@score.save

@player.scores.length # 1
@score.player.name    # Kirsten Pattison

TODO

  • RESTAdapter
    • Sideload belongs_to/has_many
  • SQLiteAdapter
    • Data migrations?
  • State Manager
    • Pretty big challenge, so it might be a while
    • Limit transitions between states
    • Rollback dirty/unsaved records
  • Improve everything! :)

Contributing

  1. Fork it
  2. Create your feature branch (git checkout -b my-new-feature)
  3. Commit your changes (git commit -am 'Add some feature')
  4. Push to the branch (git push origin my-new-feature)
  5. Create new Pull Request