Class: Sinatra::Base

Inherits:
Object show all
Includes:
Rack::Utils, Helpers, Templates
Defined in:
lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb

Overview

Base class for all Sinatra applications and middleware.

Direct Known Subclasses

Scout::Realtime::WebApp, Application

Constant Summary collapse

URI_INSTANCE = 
URI.const_defined?(:Parser) ? URI::Parser.new : URI
CALLERS_TO_IGNORE =

:nodoc:

[ # :nodoc:
  /\/sinatra(\/(base|main|showexceptions))?\.rb$/,    # all sinatra code
  /lib\/tilt.*\.rb$/,                                 # all tilt code
  /^\(.*\)$/,                                         # generated code
  /rubygems\/(custom|core_ext\/kernel)_require\.rb$/, # rubygems require hacks
  /active_support/,                                   # active_support require hacks
  /bundler(\/runtime)?\.rb/,                          # bundler require hacks
  /<internal:/,                                       # internal in ruby >= 1.9.2
  /src\/kernel\/bootstrap\/[A-Z]/                     # maglev kernel files
]

Constants included from Helpers

Helpers::ETAG_KINDS

Constants included from Rack::Utils

Rack::Utils::DEFAULT_SEP, Rack::Utils::ESCAPE_HTML, Rack::Utils::ESCAPE_HTML_PATTERN, Rack::Utils::HTTP_STATUS_CODES, Rack::Utils::Multipart, Rack::Utils::STATUS_WITH_NO_ENTITY_BODY, Rack::Utils::SYMBOL_TO_STATUS_CODE

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Methods included from Templates

#builder, #coffee, #creole, #erb, #erubis, #find_template, #haml, #less, #liquid, #markaby, #markdown, #nokogiri, #rabl, #radius, #rdoc, #sass, #scss, #slim, #stylus, #textile, #wlang, #yajl

Methods included from Helpers

#attachment, #back, #body, #cache_control, #client_error?, #content_type, #error, #etag, #expires, #headers, #informational?, #last_modified, #logger, #mime_type, #not_found, #not_found?, #redirect, #redirect?, #send_file, #server_error?, #session, #status, #stream, #success?, #time_for, #uri

Methods included from Rack::Utils

best_q_match, build_nested_query, build_query, byte_ranges, bytesize, delete_cookie_header!, escape, escape_html, escape_path, normalize_params, params_hash_type?, parse_nested_query, parse_query, q_values, rfc2109, rfc2822, secure_compare, select_best_encoding, set_cookie_header!, status_code, unescape

Constructor Details

#initialize(app = nil) {|_self| ... } ⇒ Base

Returns a new instance of Base.

Yields:

  • (_self)

Yield Parameters:

  • _self (Sinatra::Base) —

    the object that the method was called on



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 868

def initialize(app = nil)
  super()
  @app = app
  @template_cache = Tilt::Cache.new
  yield self if block_given?
end

Class Attribute Details

.errors ⇒ Object (readonly)

Returns the value of attribute errors.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1148

def errors
  @errors
end

.filters ⇒ Object (readonly)

Returns the value of attribute filters.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1148

def filters
  @filters
end

.routes ⇒ Object (readonly)

Returns the value of attribute routes.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1148

def routes
  @routes
end

.templates ⇒ Object (readonly)

Returns the value of attribute templates.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1148

def templates
  @templates
end

Instance Attribute Details

#app ⇒ Object

Returns the value of attribute app.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 865

def app
  @app
end

#env ⇒ Object

Returns the value of attribute env.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 865

def env
  @env
end

#params ⇒ Object

Returns the value of attribute params.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 865

def params
  @params
end

#request ⇒ Object

Returns the value of attribute request.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 865

def request
  @request
end

#response ⇒ Object

Returns the value of attribute response.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 865

def response
  @response
end

#template_cache ⇒ Object (readonly)

Returns the value of attribute template_cache.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 866

def template_cache
  @template_cache
end

Class Method Details

.add_filter(type, path = nil, options = {}, &block) ⇒ Object

add a filter



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1325

def add_filter(type, path = nil, options = {}, &block)
  path, options = //, path if path.respond_to?(:each_pair)
  filters[type] << compile!(type, path || //, block, options)
end

.after(path = nil, options = {}, &block) ⇒ Object

Define an after filter; runs after all requests within the same context as route handlers and may access/modify the request and response.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1320

def after(path = nil, options = {}, &block)
  add_filter(:after, path, options, &block)
end

.before(path = nil, options = {}, &block) ⇒ Object

Define a before filter; runs before all requests within the same context as route handlers and may access/modify the request and response.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1313

def before(path = nil, options = {}, &block)
  add_filter(:before, path, options, &block)
end

.build(app) ⇒ Object

Creates a Rack::Builder instance with all the middleware set up and the given app as end point.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1460

def build(app)
  builder = Rack::Builder.new
  setup_default_middleware builder
  setup_middleware builder
  builder.run app
  builder
end

.call(env) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1468

def call(env)
  synchronize { prototype.call(env) }
end

.caller_files ⇒ Object

Like Kernel#caller but excluding certain magic entries and without line / method information; the resulting array contains filenames only.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1474

def caller_files
  cleaned_caller(1).flatten
end

.caller_locations ⇒ Object

Like caller_files, but containing Arrays rather than strings with the first element being the file, and the second being the line.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1480

def caller_locations
  cleaned_caller 2
end

.condition(name = "#{caller.first[/`.*'/]} condition", &block) ⇒ Object

Add a route condition. The route is considered non-matching when the block returns false.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1332

def condition(name = "#{caller.first[/`.*'/]} condition", &block)
  @conditions << generate_method(name, &block)
end

.configure(*envs) {|_self| ... } ⇒ Object

Set configuration options for Sinatra and/or the app. Allows scoping of settings for certain environments.

Yields:

  • (_self)

Yield Parameters:

  • _self (Sinatra::Base) —

    the object that the method was called on



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1392

def configure(*envs)
  yield self if envs.empty? || envs.include?(environment.to_sym)
end

.delete(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1361

def delete(path, opts = {}, &bk)  route 'DELETE',  path, opts, &bk end

.development? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1386

def development?; environment == :development end

.disable(*opts) ⇒ Object

Same as calling ‘set :option, false` for each of the given options.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1229

def disable(*opts)
  opts.each { |key| set(key, false) }
end

.enable(*opts) ⇒ Object

Same as calling ‘set :option, true` for each of the given options.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1224

def enable(*opts)
  opts.each { |key| set(key, true) }
end

.error(*codes, &block) ⇒ Object

Define a custom error handler. Optionally takes either an Exception class, or an HTTP status code to specify which errors should be handled.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1236

def error(*codes, &block)
  args  = compile! "ERROR", //, block
  codes = codes.map { |c| Array(c) }.flatten
  codes << Exception if codes.empty?
  codes.each { |c| (@errors[c] ||= []) << args }
end

.extensions ⇒ Object

Extension modules registered on this class and all superclasses.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1169

def extensions
  if superclass.respond_to?(:extensions)
    (@extensions + superclass.extensions).uniq
  else
    @extensions
  end
end

.get(path, opts = {}, &block) ⇒ Object

Defining a ‘GET` handler also automatically defines a `HEAD` handler.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1351

def get(path, opts = {}, &block)
  conditions = @conditions.dup
  route('GET', path, opts, &block)

  @conditions = conditions
  route('HEAD', path, opts, &block)
end

.head(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1362

def head(path, opts = {}, &bk)    route 'HEAD',    path, opts, &bk end

.helpers(*extensions, &block) ⇒ Object

Makes the methods defined in the block and in the Modules given in ‘extensions` available to the handlers and templates



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1370

def helpers(*extensions, &block)
  class_eval(&block)   if block_given?
  include(*extensions) if extensions.any?
end

.inline_templates=(file = nil) ⇒ Object

Load embedded templates from the file; uses the caller’s __FILE__ when no file is specified.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1262

def inline_templates=(file = nil)
  file = (file.nil? || file == true) ? (caller_files.first || File.expand_path($0)) : file

  begin
    io = ::IO.respond_to?(:binread) ? ::IO.binread(file) : ::IO.read(file)
    app, data = io.gsub("\r\n", "\n").split(/^__END__$/, 2)
  rescue Errno::ENOENT
    app, data = nil
  end

  if data
    if app and app =~ /([^\n]*\n)?#[^\n]*coding: *(\S+)/m
      encoding = $2
    else
      encoding = settings.default_encoding
    end
    lines = app.count("\n") + 1
    template = nil
    force_encoding data, encoding
    data.each_line do |line|
      lines += 1
      if line =~ /^@@\s*(.*\S)\s*$/
        template = force_encoding('', encoding)
        templates[$1.to_sym] = [template, file, lines]
      elsif template
        template << line
      end
    end
  end
end

.layout(name = :layout, &block) ⇒ Object

Define the layout template. The block must return the template source.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1256

def layout(name = :layout, &block)
  template name, &block
end

.link(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1365

def link(path, opts = {}, &bk)    route 'LINK',    path, opts, &bk end

.middleware ⇒ Object

Middleware used in this class and all superclasses.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1178

def middleware
  if superclass.respond_to?(:middleware)
    superclass.middleware + @middleware
  else
    @middleware
  end
end

.mime_type(type, value = nil) ⇒ Object

Lookup or register a mime type in Rack’s mime registry.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1294

def mime_type(type, value = nil)
  return type      if type.nil?
  return type.to_s if type.to_s.include?('/')
  type = ".#{type}" unless type.to_s[0] == ?.
  return Rack::Mime.mime_type(type, nil) unless value
  Rack::Mime::MIME_TYPES[type] = value
end

.mime_types(type) ⇒ Object

provides all mime types matching type, including deprecated types:

mime_types :html # => ['text/html']
mime_types :js   # => ['application/javascript', 'text/javascript']



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1305

def mime_types(type)
  type = mime_type type
  type =~ /^application\/(xml|javascript)$/ ? [type, "text/#$1"] : [type]
end

.new(*args, &bk) ⇒ Object

Create a new instance of the class fronted by its middleware pipeline. The object is guaranteed to respond to #call but may not be an instance of the class new was called on.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1453

def new(*args, &bk)
  instance = new!(*args, &bk)
  Wrapper.new(build(instance).to_app, instance)
end

.not_found(&block) ⇒ Object

Sugar for ‘error(404) { … }`



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1244

def not_found(&block)
  error(404, &block)
  error(Sinatra::NotFound, &block)
end

.options(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1363

def options(path, opts = {}, &bk) route 'OPTIONS', path, opts, &bk end

.patch(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1364

def patch(path, opts = {}, &bk)   route 'PATCH',   path, opts, &bk end

.post(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1360

def post(path, opts = {}, &bk)    route 'POST',    path, opts, &bk end

.production? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1387

def production?;  environment == :production  end

.prototype ⇒ Object

The prototype instance used to process requests.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1443

def prototype
  @prototype ||= new
end

.public=(value) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1336

def public=(value)
  warn ":public is no longer used to avoid overloading Module#public, use :public_folder or :public_dir instead"
  set(:public_folder, value)
end

.public_dir ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1345

def public_dir
  public_folder
end

.public_dir=(value) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1341

def public_dir=(value)
  self.public_folder = value
end

.put(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1359

def put(path, opts = {}, &bk)     route 'PUT',     path, opts, &bk end

.quit! ⇒ Object Also known as: stop!

Stop the self-hosted server if running.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1403

def quit!
  return unless running?
  # Use Thin's hard #stop! if available, otherwise just #stop.
  running_server.respond_to?(:stop!) ? running_server.stop! : running_server.stop
  $stderr.puts "== Sinatra has ended his set (crowd applauds)" unless handler_name =~/cgi/i
  set :running_server, nil
  set :handler_name, nil
end

.register(*extensions, &block) ⇒ Object

Register an extension. Alternatively take a block from which an extension will be created and registered on the fly.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1377

def register(*extensions, &block)
  extensions << Module.new(&block) if block_given?
  @extensions += extensions
  extensions.each do |extension|
    extend extension
    extension.registered(self) if extension.respond_to?(:registered)
  end
end

.reset! ⇒ Object

Removes all routes, filters, middleware and extension hooks from the current class (not routes/filters/… defined by its superclass).



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1152

def reset!
  @conditions     = []
  @routes         = {}
  @filters        = {:before => [], :after => []}
  @errors         = {}
  @middleware     = []
  @prototype      = nil
  @extensions     = []

  if superclass.respond_to?(:templates)
    @templates = Hash.new { |hash,key| superclass.templates[key] }
  else
    @templates = {}
  end
end

.run!(options = {}, &block) ⇒ Object Also known as: start!

Run the Sinatra app as a self-hosted server using Thin, Puma, Mongrel, or WEBrick (in that order). If given a block, will call with the constructed handler once we have taken the stage.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1417

def run!(options = {}, &block)
  return if running?
  set options
  handler         = detect_rack_handler
  handler_name    = handler.name.gsub(/.*::/, '')
  server_settings = settings.respond_to?(:server_settings) ? settings.server_settings : {}
  server_settings.merge!(:Port => port, :Host => bind)

  begin
    start_server(handler, server_settings, handler_name, &block)
  rescue Errno::EADDRINUSE
    $stderr.puts "== Someone is already performing on port #{port}!"
    raise
  ensure
    quit!
  end
end

.running? ⇒ Boolean

Check whether the self-hosted server is running or not.

Returns:

  • (Boolean) 


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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1438

def running?
  running_server?
end

.set(option, value = (not_set = true), ignore_setter = false, &block) ⇒ Object

Sets an option to the given value. If the value is a proc, the proc will be called every time the option is accessed.

Raises:

  • (ArgumentError) 


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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1188

def set(option, value = (not_set = true), ignore_setter = false, &block)
  raise ArgumentError if block and !not_set
  value, not_set = block, false if block

  if not_set
    raise ArgumentError unless option.respond_to?(:each)
    option.each { |k,v| set(k, v) }
    return self
  end

  if respond_to?("#{option}=") and not ignore_setter
    return __send__("#{option}=", value)
  end

  setter = proc { |val| set option, val, true }
  getter = proc { value }

  case value
  when Proc
    getter = value
  when Symbol, Fixnum, FalseClass, TrueClass, NilClass
    getter = value.inspect
  when Hash
    setter = proc do |val|
      val = value.merge val if Hash === val
      set option, val, true
    end
  end

  define_singleton("#{option}=", setter) if setter
  define_singleton(option, getter) if getter
  define_singleton("#{option}?", "!!#{option}") unless method_defined? "#{option}?"
  self
end

.settings ⇒ Object

Access settings defined with Base.set.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 904

def self.settings
  self
end

.template(name, &block) ⇒ Object

Define a named template. The block must return the template source.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1250

def template(name, &block)
  filename, line = caller_locations.first
  templates[name] = [block, filename, line.to_i]
end

.test? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1388

def test?;        environment == :test        end

.unlink(path, opts = {}, &bk) ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1366

def unlink(path, opts = {}, &bk)  route 'UNLINK',  path, opts, &bk end

.use(middleware, *args, &block) ⇒ Object

Use the specified Rack middleware



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1397

def use(middleware, *args, &block)
  @prototype = nil
  @middleware << [middleware, args, block]
end

Instance Method Details

#call(env) ⇒ Object

Rack call interface.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 876

def call(env)
  dup.call!(env)
end

#call!(env) ⇒ Object

:nodoc:



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 880

def call!(env) # :nodoc:
  @env      = env
  @request  = Request.new(env)
  @response = Response.new
  @params   = indifferent_params(@request.params)
  template_cache.clear if settings.reload_templates
  force_encoding(@params)

  @response['Content-Type'] = nil
  invoke { dispatch! }
  invoke { error_block!(response.status) } unless @env['sinatra.error']

  unless @response['Content-Type']
    if Array === body and body[0].respond_to? :content_type
      content_type body[0].content_type
    else
      content_type :html
    end
  end

  @response.finish
end

#forward ⇒ Object

Forward the request to the downstream app – middleware only.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 934

def forward
  fail "downstream app not set" unless @app.respond_to? :call
  status, headers, body = @app.call env
  @response.status = status
  @response.body = body
  @response.headers.merge! headers
  nil
end

#halt(*response) ⇒ Object

Exit the current block, halts any further processing of the request, and returns the specified response.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 921

def halt(*response)
  response = response.first if response.length == 1
  throw :halt, response
end

#new! ⇒ Object

Create a new instance without middleware in front of it.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 1448

alias new! new

#options ⇒ Object 



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 913

def options
  warn "Sinatra::Base#options is deprecated and will be removed, " \
    "use #settings instead."
  settings
end

#pass(&block) ⇒ Object

Pass control to the next matching route. If there are no more matching routes, Sinatra will return a 404 response.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 929

def pass(&block)
  throw :pass, block
end

#settings ⇒ Object

Access settings defined with Base.set.



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# File 'lib/vendor/sinatra-1.4.4/lib/sinatra/base.rb', line 909

def settings
  self.class.settings
end