Class: ActionDispatch::Routing::Mapper::Constraints

Inherits:
Object
  • Object
show all
Defined in:
actionpack/lib/action_dispatch/routing/mapper.rb

Overview

:nodoc:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(app, constraints, request) ⇒ Constraints

Returns a new instance of Constraints.


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# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 29

def initialize(app, constraints, request)
  @app, @constraints, @request = app, constraints, request
end

Instance Attribute Details

#appObject (readonly)

Returns the value of attribute app


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# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 27

def app
  @app
end

#constraintsObject (readonly)

Returns the value of attribute constraints


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# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 27

def constraints
  @constraints
end

Class Method Details

.new(app, constraints, request = Rack::Request) ⇒ Object


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# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 19

def self.new(app, constraints, request = Rack::Request)
  if constraints.any?
    super(app, constraints, request)
  else
    app
  end
end

Instance Method Details

#call(env) ⇒ Object


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# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 44

def call(env)
  matches?(env) ? @app.call(env) : [ 404, {'X-Cascade' => 'pass'}, [] ]
end

#matches?(env) ⇒ Boolean

Returns:

  • (Boolean)

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# File 'actionpack/lib/action_dispatch/routing/mapper.rb', line 33

def matches?(env)
  req = @request.new(env)

  @constraints.all? do |constraint|
    (constraint.respond_to?(:matches?) && constraint.matches?(req)) ||
      (constraint.respond_to?(:call) && constraint.call(*constraint_args(constraint, req)))
  end
ensure
  req.reset_parameters
end