Class: Egalite::Route

Inherits:
Object show all
Defined in:
lib/egalite/route.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(route_def) ⇒ Route

Returns a new instance of Route.



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# File 'lib/egalite/route.rb', line 3

def initialize(route_def)
  @route = route_def
  @controller = nil
  @prefix = nil
  @action = nil
end

Class Method Details

.default_routes ⇒ Object 



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# File 'lib/egalite/route.rb', line 9

def self.default_routes
  routes = []
  routes << Route.new([
    [:controller],
    [:controller],
    [:action],
    [:param_arg, :id],
    [:params]
  ])
  routes << Route.new([
    [:controller],
    [:controller],
    [:param_arg, :id],
    [:params]
  ])
  routes << Route.new([
    [:controller],
    [:action],
    [:param_arg, :id],
    [:params]
  ])
  routes << Route.new([
    [:controller],
    [:param_arg, :id],
    [:params]
  ])
  routes << Route.new([
    [:action],
    [:param_arg, :id],
    [:params]
  ])
  routes << Route.new([
    [:param_arg, :id],
    [:params]
  ])
  routes
end

Instance Method Details

#escape(s) ⇒ Object 



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# File 'lib/egalite/route.rb', line 107

def escape(s)
  Rack::Utils.escape(s)
end

#get_path_and_params_from_params(params, current_host = nil, current_port = nil, current_scheme = nil) ⇒ Object 



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# File 'lib/egalite/route.rb', line 111

def get_path_and_params_from_params(params, current_host = nil, current_port = nil, current_scheme = nil)
  route = @route || []
  pathary = []
  controller_exist = false
  action_exist = false
  contfrags = (@controller || "").to_s.split('/')
  
  scheme = nil
  host = nil
  port = nil
  if params[:scheme]
    scheme = params[:scheme].to_s
    params.delete(:scheme)
  end
  if params[:host]
    host = params[:host]
    params.delete(:host)
  end
  if params[:port]
    port = params[:port].to_i
    params.delete(:port)
  end
  if (scheme or port or host)
    raise "get_path_and_params_from_params: current_host is not supplied." unless host or current_host
    scheme = scheme || current_scheme || 'http'
    prefix = "#{scheme}://#{host || current_host}"
    unless (current_scheme == 'http' and current_port == 80) or (current_scheme == 'https' and current_port == 443)
      port ||= current_port
    end
    if port
      unless (scheme == 'http' and port == 80) or (scheme == 'https' and port == 443)
        prefix << ":#{port}"
      end
    end
  end
  
  route.each { |fragment|
    command = fragment[0]
    
    case command
      when :controller
        next if controller_exist
        if params[:controller] == nil
          pathary += contfrags
        elsif params[:controller] =~ /^\//
          pathary += params[:controller].to_s.split('/')
        else
          pathary += contfrags[0..-2]
          pathary += params[:controller].to_s.split('/')
        end
        controller_exist = pathary.size
        params.delete(:controller)
      when :action
        pathary << (params[:action] || (controller_exist ? nil : @action))
        action_exist = true
        params.delete(:action)
      when :param
        pathary << params[fragment[1]]
        params.delete(fragment[1])
      when :param_arg
        pathary << params[fragment[1]]
        params.delete(fragment[1])
      when :param_fix
        value = params[fragment[1]]
        value = fragment[2] unless value
        pathary << params[fragment[1]]
        params.delete(fragment[1])
      when :controller_fix
        next
      when :params
        ary = (params[:params] || [])
        if ary.respond_to?(:map)
          pathary += ary.map { |s| s.to_s }
        else
          pathary += [ary.to_s]
        end
        params.delete(:params)
    end
  }
  if not action_exist and params[:action]
    if controller_exist
      pathary.insert(controller_exist,params[:action])
    else
      pathary.unshift(params[:action])
    end
    params.delete(:action)
  end
  if not controller_exist and params[:controller]
    pathary.unshift(params[:controller].to_s.split('/')).flatten!
    params.delete(:controller)
  end
  pathary = pathary.compact.map { |frag| escape(frag) }
  path = "/" + pathary.join('/').sub(/\/+$/,'').sub(/^\//,'')
  
  [path, params, pathary, prefix]
end

#link_to(title, params, host = nil, port = nil, scheme = nil) ⇒ Object 



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# File 'lib/egalite/route.rb', line 227

def link_to(title, params, host = nil, port = nil, scheme = nil)
  "<a href='#{url_for(params, host, port, scheme)}'>#{title}</a>"
end

#match(path) ⇒ Object 



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# File 'lib/egalite/route.rb', line 48

def match(path)
  path = path.sub(/^\/+/,'')
  pathary = path.to_s.split('/')
  controller = nil
  action = nil
  path_params = []
  params = {}
  prefix = []
  @route.each { |fragment|
    command = fragment[0]
    
    case command
      when :controller
        if pathary.empty? and controller
          controller += '/index'
        elsif pathary.empty?
          return nil
        else
          controller += '/' if controller
          controller ||= ''
          controller += pathary.shift
        end
      when :action
        return nil if pathary.empty?
        action = pathary.shift
      when :param
        next if pathary.empty?
        val = pathary.shift
        params[fragment[1]] = val
        prefix << val unless controller
      when :param_arg
        next if pathary.empty?
        val = pathary.shift
        params[fragment[1]] = val if fragment[1]
        path_params << val
        prefix << val unless controller
      when :param_fix
        return nil if pathary[0] != fragment[2]
        params[fragment[1]] = pathary.shift
        prefix << val unless controller
      when :controller_fix
        return nil if pathary[0] != fragment[1]
        controller += '/' if controller
        controller ||= ''
        controller += pathary.shift
      when :params
        path_params += pathary
        pathary = []
    end
  }
  return nil if pathary.size > 0
  @controller = controller
  @action = action
  @path_params = path_params
  @params = params
  @prefix = prefix.join('/')
  [controller, action, path_params, params]
end

#url_for(params, host = nil, port = nil, scheme = nil) ⇒ Object 



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# File 'lib/egalite/route.rb', line 208

def url_for(params, host = nil, port = nil, scheme = nil)
  (path, params, z, prefix) = get_path_and_params_from_params(params, host, port, scheme)
  if params and params.size > 0
    q = []
    params.each { |k,v|
      if v.is_a?(Hash)
        v.each { |k2,v2|
          next if v2 == nil
          q << "#{escape(k)}[#{escape(k2)}]=#{escape(v2)}"
        }
      else
        q << "#{escape(k)}=#{escape(v)}" if v
      end
    }
    path += "?" + q.join('&') unless q.empty?
  end
  "#{prefix}#{path}"
end