Class: PrestoCore::Slice

Inherits:

Object

• Object
• PrestoCore::Slice

show all

Includes:

Utils

Defined in:

lib/presto/core/slice.rb

Constant Summary

Constant Summary

Constants included from Utils

Utils::PATH_MODIFIERS, Utils::STATUS__NOT_FOUND, Utils::STATUS__OK, Utils::STATUS__PERMANENT_REDIRECT, Utils::STATUS__REDIRECT, Utils::STATUS__RESTRICTED, Utils::STATUS__SERVER_ERROR

Instance Attribute Summary (collapse)

• - (Object) canonical readonly

  Returns the value of attribute canonical.

• - (Object) controllers readonly

  Returns the value of attribute controllers.

• - (Object) http readonly

  Returns the value of attribute http.

• - (Object) root readonly

  Returns the value of attribute root.

• - (Object) view readonly

  Returns the value of attribute view.

Instance Method Summary (collapse)

• - (Object) add_controllers(*controllers)
• - (Boolean) configurable?
• - (Object) ctrl

  set controller settings at slice level.

• - (Object) initialize(namespace = nil, *paths) {|slice| ... } constructor

  creating an app slice from given namespace.

• - (Object) lock

Methods included from Utils

build_path, #extract_controllers, is_controller?, normalize_path, rootify_url

app = Presto.new
app.mount SomeNamespace do |slice|
  # here is where slice is to be configured ...
  # locking all controllers
  slice.http.auth {|u,p| [u,p] == ['admin', 'ssp']}
  # middleware to be used by all controllers
  slice.http.use SomeMiddleware
  # defining view root for all controllers
  slice.view.root '/some/path'
  # etc
end

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# File 'lib/presto/core/slice.rb', line 31

def initialize namespace = nil, *paths, &proc

  @controllers = []
  extract_controllers namespace if namespace

  @root = rootify(paths.shift).freeze
  @canonical = paths.map { |p| rootify(p) }.freeze

  @http = ::PrestoHTTP::Slice.new self
  @view = ::PrestoView::Slice.new self

  # configuring slice if block given
  self.instance_exec(self, &proc) if proc

  if @controllers.size > 0
    helpers = ctrl.helpers
    @controllers.each do |controller|
      controller.ctrl.slice self
      helpers.each_pair { |h, p| controller.ctrl.helper h, &(p||lambda {}) }
    end
    map_controllers
  end

end

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# File 'lib/presto/core/slice.rb', line 6

def canonical
  @canonical
end

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# File 'lib/presto/core/slice.rb', line 6

def controllers
  @controllers
end

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# File 'lib/presto/core/slice.rb', line 6

def http
  @http
end

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# File 'lib/presto/core/slice.rb', line 6

def root
  @root
end

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# File 'lib/presto/core/slice.rb', line 6

def view
  @view
end

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# File 'lib/presto/core/slice.rb', line 69

def add_controllers *controllers
  controllers.each { |c| c.ctrl.slice self }
  @controllers.concat controllers
  map_controllers
end

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# File 'lib/presto/core/slice.rb', line 79

def configurable?
  @locked.nil?
end

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# File 'lib/presto/core/slice.rb', line 57

def ctrl
  @ctrl_proxy ||= Class.new do
    def self.helper *helpers, &proc
      helpers.each { |h| helpers()[h] = proc }
    end

    def self.helpers
      @helpers ||= {}
    end
  end
end

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# File 'lib/presto/core/slice.rb', line 75

def lock
  @locked = true
end