Coach.js
Full Stack Web Framework for Node.js. Minified & Gzipped: 15.7kb
Install
npm install coach -d
Generator
coach new my-app
Structure
.
|-- app
| |-- controllers
| | |-- admin
| | | |-- postsController.coffee
| | | `-- usersController.coffee
| | |-- postsController.coffee
| | |-- sessionsController.coffee
| | `-- usersController.coffee
| |-- models
| | |-- post.coffee
| | `-- user.coffee
| |-- views
| | |-- admin
| | | `-- posts
| | | |-- _form.coffee
| | | |-- edit.coffee
| | | |-- index.coffee
| | | |-- new.coffee
| | | |-- show.coffee
| | |-- layouts
| | | `-- application.coffee
| | |-- shared
| | `-- posts
| | |-- index.coffee
| | `-- show.coffee
| `-- helpers
| |-- admin
| | |-- postsHelper.coffee
| | `-- tagsHelper.coffee
| `-- postsHelper.coffee
`-- config
| |-- application.coffee
| |-- locale
| `-- en.coffee
| |-- routes.coffee
`-- spec
| |-- helper.coffee
| |-- models
| | |-- postSpec.coffee
| | |-- userSpec.coffee
| `-- acceptance
| |-- login.coffee
| |-- signup.coffee
| `-- posts.coffee
Application
# config/application.coffee
class App extends Coach.Application
@config.encoding = "utf-8"
@config.filterParameters += ["password", "password_confirmation"]
@config.loadPaths += ["./themes"]
Models
class App.User extends Coach.Model
@key "firstName"
@key "createdAt", type: "Date", default: -> new Date()
@key "coordinates", type: "Geo"
@scope "byBaldwin", firstName: "=~": "Baldwin"
@scope "thisWeek", @where createdAt: ">=": -> require('moment')().subtract('days', 7)
@hasMany "posts", className: "App.Post", cache: true # postIds
@validate "firstName", presence: true
class App.Post extends Coach.Model
@belongsTo "author", className: "App.User"
User.where(createdAt: ">=": _(2).days().ago(), "<=": new Date()).within(radius: 2).desc("createdAt").asc("firstName").paginate(page: 5).all (error, records) =>
@render json: User.toJSON(records)
# should handle these but doesn't yet.
Post.includes("author").where(author: firstName: "=~": "Baldwin").all()
Post.includes("author").where("author.firstName": "=~": "Baldwin").all()
# userIds = User.where(firstName: "=~": "Baldwin").select("id")
# Post.where(authorId: $in: userIds).all()
User.includes("posts").where("posts.title": "Welcome").all()
Routes
# config/routes.coffee
Coach.Route.draw ->
@match "/login", "sessions#new", via: "get", as: "login"
@resources "posts", ->
@resources "comments"
Routes are really just models, Coach.Route
. You can add and remove and search them however you like:
Coach.Route.where(pattern: "=~": "/posts").first()
Views
Forms
# app/views/posts/new.coffee
formFor @post, ->
fieldset ->
legend "Basic Info"
field "title"
field "body", as: "text"
submit "Save"
Tables
# app/views/posts/index.coffee
tableFor @posts, ->
thead ->
tcell "Title"
tcell "Author"
tbody ->
for post in @posts
trow
tcell post.title
tcell post.author.name
tfoot ->
pagination @posts
Layouts
# app/views/layouts/application.coffee
doctype 5
html ->
head ->
meta charset: 'utf-8'
title "#{@title or 'Untitled'} | My awesome website"
meta name: 'description', content: @desc if @desc?
link rel: 'stylesheet', href: '/stylesheets/application.css'
body ->
header ->
h1 @title or 'Untitled'
nav ->
ul ->
(li -> a href: '/', -> 'Home') unless @path is '/'
li -> a href: '/chunky', -> 'Bacon!'
switch @user.role
when 'owner', 'admin'
li -> a href: '/admin', -> 'Secret Stuff'
when 'vip'
li -> a href: '/vip', -> 'Exclusive Stuff'
else
li -> a href: '/commoners', -> 'Just Stuff'
section ->
yield()
footer ->
p shoutify('bye')
The default templating engine is CoffeeKup, which is pure coffeescript. It's much more powerful than Jade, and it's just as performant if not more so. You can set Jade or any other templating engine as the default by setting Coach.View.engine = "jade"
in config/application
. Coach uses Shift.js, which is a normalized interface to most of the Node.js templating languages.
Controllers
class PostsController extends Coach.Controller
index: ->
@posts = Post.all()
new: ->
@post = new Post
create: ->
@post = new Post(@params.post)
super (success, failure) ->
@success.html -> @render "posts/edit"
@success.json -> @render text: "success!"
@failure.html -> @render text: "Error", status: 404
@failure.json -> @render text: "Error", status: 404
show: ->
@post = Post.find(@params.id)
edit: ->
@post = Post.find(@params.id)
update: ->
@post = Post.find(@params.id)
destroy: ->
@post = Post.find(@params.id)
Internationalization
The default interpolator is mustache. You can swap that out with any template engine you want.
Should use https://github.com/olado/doT, which seems to be the fastest: http://jsperf.com/dom-vs-innerhtml-based-templating/253.
en:
hello: "world"
forms:
titles:
signup: "Signup"
pages:
titles:
home: "Welcome to {{site}}"
posts:
comments:
none: "No comments"
one: "1 comment"
other: "{{count}} comments"
messages:
past:
none: "You never had any messages"
one: "You had 1 message"
other: "You had {{count}} messages"
present:
one: "You have 1 message"
future:
one: "You might have 1 message"
Helpers
Since all of the controller/routing code is available on the client, you can go directly through that system just like you would the server.
# Just request the url, and let it do it's thing
Coach.get '/posts'
# Same thing, this time passing parameters
Coach.get '/posts', createdAt: "2011-10-26..2011-10-31"
# Dynamic
Coach.urlFor(Post.first()) #=> "/posts/the-id"
Coach.navigate Coach.urlFor(post)
Those methods pass through the router and client-side middleware so you have access to request
and response
objects like you would on the server.
Middleware
It's built on connect, so you can use any of the middleware libs out there.
Test, Develop, Minify
cake coffee
cake spec
cake minify
License
(The MIT License)
Copyright © 2011 - 2012 Lance Pollard <lancejpollard@gmail.com>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the 'Software'), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
More
Coach.Support.String.parameterize = (string) ->
Coach.Support.String.underscore(string).replace(/[^a-z0-9]+/g, "-").replace(/^-+|-+$/g, "-").replace(/^-+|-+$/g, '')
Coach.Model.toParam = ->
Coach.Support.String.underscore(Coach.Support.String.pluralize(@name)).replace("_", "-")
Coach.Model::toParam = ->
@id.toString()
Coach.Route.find = (options) ->
routes = @all()
for route in routes
success = true
for key, value of options
console.log route
success = route.controller[key] == value
break unless success
return route if success
null
# use single quotes, otherwise they're escaped
Coach.Support.String.toQueryValue = (value, negate = "") ->
if Coach.Support.Object.isArray(value)
items = []
for item in value
result = negate
result += item
items.push result
result = items.join(",")
else
result = negate
result += value.toString()
result = result.replace(" ", "+").replace /[#%\"\|<>]/g, (_) -> encodeURIComponent(_)
result
# toQuery likes: 10
# toQuery likes: ">=": 10
# toQuery likes: ">=": 10, "<=": 20
# toQuery tags: ["ruby", "javascript"]
# toQuery tags: "!=": ["java", ".net"]
# #=> tags=-java,-ruby
# toQuery tags: "!=": ["java", ".net"], "==": ["ruby", "javascript"]
# #=> tags=ruby,javascript,-java,-ruby
Coach.Support.String.toQuery = (object, schema = {}) ->
result = []
for key, value of object
param = "#{key}="
type = schema[key] || "string"
negate = if type == "string" then "-" else "^"
if Coach.Support.Object.isHash(value)
data = {}
data.min = value[">="] if value.hasOwnProperty(">=")
data.min = value[">"] if value.hasOwnProperty(">")
data.max = value["<="] if value.hasOwnProperty("<=")
data.max = value["<"] if value.hasOwnProperty("<")
data.match = value["=~"] if value.hasOwnProperty("=~")
data.notMatch = value["!~"] if value.hasOwnProperty("!~")
data.eq = value["=="] if value.hasOwnProperty("==")
data.neq = value["!="] if value.hasOwnProperty("!=")
data.range = data.hasOwnProperty("min") || data.hasOwnProperty("max")
set = []
if data.range && !(data.hasOwnProperty("eq") || data.hasOwnProperty("match"))
range = ""
if data.hasOwnProperty("min")
range += Coach.Support.String.toQueryValue(data.min)
else
range += "n"
range += ".."
if data.hasOwnProperty("max")
range += Coach.Support.String.toQueryValue(data.max)
else
range += "n"
set.push range
if data.hasOwnProperty("eq")
set.push Coach.Support.String.toQueryValue(data.eq)
if data.hasOwnProperty("match")
set.push Coach.Support.String.toQueryValue(data.match)
if data.hasOwnProperty("neq")
set.push Coach.Support.String.toQueryValue(data.neq, negate)
if data.hasOwnProperty("notMatch")
set.push Coach.Support.String.toQueryValue(data.notMatch, negate)
param += set.join(",")
else
param += Coach.Support.String.toQueryValue(value)
result.push param
result.sort().join("&")
Coach.Support.String.extractDomain = (host, tldLength = 1) ->
return null unless @namedHost(host)
parts = host.split('.')
parts[0..parts.length - 1 - 1 + tldLength].join(".")
Coach.Support.String.extractSubdomains = (host, tldLength = 1) ->
return [] unless @namedHost(host)
parts = host.split('.')
parts[0..-(tldLength+2)]
Coach.Support.String.extractSubdomain = (host, tldLength = 1) ->
@extractSubdomains(host, tldLength).join('.')
Coach.Support.String.namedHost = (host) ->
!!!(host == null || /\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}$/.exec(host))
Coach.Support.String.rewriteAuthentication = (options) ->
if options.user && options.password
"#{encodeURI(options.user)}:#{encodeURI(options.password)}@"
else
""
Coach.Support.String.hostOrSubdomainAndDomain = (options) ->
return options.host if options.subdomain == null && options.domain == null
tldLength = options.tldLength || 1
host = ""
unless options.subdomain == false
subdomain = options.subdomain || @extractSubdomain(options.host, tldLength)
host += "#{subdomain}." if subdomain
host += (options.domain || @extractDomain(options.host, tldLength))
host
# urlFor controller: "posts", action: "index"
# urlFor @user
# urlFor User
# urlFor "admin", @user
# Coach._urlFor({onlyPath: true, params: {likes: {">=": -10, "<=": 20, "!=": [13, 15]}, tags: {"==": ["ruby", /javascript /i], "!=": ["java"]}}, trailingSlash: false}, {likes: "integer"})
# "?likes=-10..20,^13,^15&tags=ruby,/javascript+/i,-java"
Coach.Support.String.urlFor = (options) ->
unless options.host || options.onlyPath
throw new Error('Missing host to link to! Please provide the :host parameter, set defaultUrlOptions[:host], or set :onlyPath to true')
result = ""
params = options.params || {}
path = (options.path || "").replace(/\/+/, "/")
schema = options.schema || {}
delete options.path
delete options.schema
unless options.onlyPath
port = options.port
delete options.port
unless options.protocol == false
result += options.protocol || "http"
result += ":" unless result.match(Coach.Support.RegExp.regexpEscape(":|//"))
result += "//" unless result.match("//")
result += @rewriteAuthentication(options)
result += @hostOrSubdomainAndDomain(options)
result += ":#{port}" if port
# params.reject! {|k,v| v.toParam.nil? }
if options.trailingSlash
result += path.replace /\/$/, "/"
else
result += path
result += "?#{Coach.Support.String.toQuery(params, schema)}" unless Coach.Support.Object.isBlank(params)
result += "##{Coach.Support.String.toQuery(options.anchor)}" if options.anchor
result
# Coach.urlFor(RW.MongoUser.first(), {onlyPath: false, params: {likes: {">=": -10, "<=": 20, "!=": [13, 15]}, tags: {"==": ["ruby", /javascript#/i], "!=": ["java"]}}, trailingSlash: true, host: "rituwall.com", user: "lance", password: "pollard", anchor: {likes: 10}})
# "http://lance:pollard@rituwall.com/mongo-users/1?likes=-10..20,-13,-15&tags=ruby,/javascript%23/i,-java#likes=10"
Coach.urlFor = ->
args = Coach.Support.Array.args(arguments)
return null unless args[0]
if args[0] instanceof Coach.Model || (typeof(args[0])).match(/(string|function)/)
last = args[args.length - 1]
if last instanceof Coach.Model || (typeof(last)).match(/(string|function)/)
options = {}
else
options = args.pop()
options ||= args.pop()
result = ""
if options.controller && options.action
route = Coach.Route.find(name: options.controller.replace(/(Controller)?$/, "Controller"), action: options.action)
if route
result = "/" + Coach.Support.String.parameterize(options.controller)
else
for item in args
result += "/"
if typeof(item) == "string"
result += item
else if item instanceof Coach.Model
result += item.constructor.toParam() + "/" + item.toParam()
else if typeof(item) == "function"
result += item.toParam()
result += switch options.action
when "new" then "/new"
when "edit" then "/edit"
else
""
options.path = result
Coach.Support.String.urlFor(options)
Coach.get = ->
url = Coach.urlFor(arguments...)
Coach.Route.draw ->