Class: Routing

Inherits:
Object
  • Object
show all
Defined in:
lib/jails/routing.rb

Instance Method Summary collapse

Constructor Details

#initialize(request) ⇒ Routing

Set request object as an attribute. Declare a routes attribute. Call the draw method to populate it with a hash of routes.



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# File 'lib/jails/routing.rb', line 4

def initialize(request)
  @request = request
  @routes = {} 
  draw(Application.routes)
end

Instance Method Details

#dispatch ⇒ Object

Match request path to @routes hash. If match, create controller object and call the action.



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# File 'lib/jails/routing.rb', line 21

def dispatch
  path = @request.path
  id = nil
  segments = path.split("/").reject { |segment| segment.empty? }
  if segments[1] =~ /^\d+$/
    id = segments[1]
    segments[1] = ":id"
    path = "/#{segments.join('/')}"
  end
  if @routes.key?(path)
    target = @routes[path]
    resource_name, action_name = target.split('#')
    @request.params.merge!(resource: resource_name, action: action_name, id: id)
    klass = Object.const_get("#{resource_name.capitalize}Controller")
    puts("Processing by #{klass}##{action_name}")
    klass.new(@request).send(action_name)
  else
    Rack::Response.new(["Nothing found"], 404, {"Content-Type" => "text/html"})
  end
rescue Exception => error
  Rack::Response.new(["Internal error"], 500, {"Content-Type" => "text/html"})
end

#draw(block) ⇒ Object

Build the @routes hash by evaluating the block passed in as a proc object from the Application.routes method.



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# File 'lib/jails/routing.rb', line 11

def draw(block)   
  instance_eval(&block)
end

#match(path, target) ⇒ Object

Add route to @routes hash with the url’s path as the key and target as the value.



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# File 'lib/jails/routing.rb', line 16

def match(path, target)
  @routes["#{path}"] = target
end