Class: Merb::AcceptType

Inherits:
Object show all
Defined in:
lib/merb-core/controller/mixins/responder.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(entry, index) ⇒ AcceptType

Parameters

entry

The accept type pattern

index

The index used for sorting accept types. A lower value indicates higher priority.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 390

def initialize(entry,index)
  @index = index
  
  entry =~ /\s*([^;\s]*)\s*(;\s*q=\s*(.*))?/
  @media_range, quality = $1, $3
  
  @type, @sub_type = @media_range.split(%r{/})
  (quality ||= 0.0) if @media_range == "*/*"
  @quality = quality ? (quality.to_f * 100).to_i : 100
end

Instance Attribute Details

#index ⇒ Object (readonly)

Returns the value of attribute index.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 383

def index
  @index
end

#media_range ⇒ Object (readonly)

Returns the value of attribute media_range.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 383

def media_range
  @media_range
end

#quality ⇒ Object (readonly)

Returns the value of attribute quality.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 383

def quality
  @quality
end

#sub_type ⇒ Object (readonly)

Returns the value of attribute sub_type.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 383

def sub_type
  @sub_type
end

#type ⇒ Object (readonly)

Returns the value of attribute type.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 383

def type
  @type
end

Instance Method Details

#<=>(entry) ⇒ Object

Compares two accept types for sorting purposes.

Parameters

entry

The accept type to compare.

Returns

Fixnum

-1, 0 or 1, depending on whether entry has a lower, equal or higher priority than the accept type being compared.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 410

def <=>(entry)
  if entry.quality == quality
    @index <=> entry.index
  else
    entry.quality <=> @quality
  end
end

#==(entry) ⇒ Object

An alias for eql?.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 431

def ==(entry); eql?(entry); end

#eql?(entry) ⇒ Boolean

Parameters

entry

The accept type to compare.

Returns

Boolean

True if the accept types are equal, i.e. if the synonyms for this accept type includes the entry media range.

Returns:



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# File 'lib/merb-core/controller/mixins/responder.rb', line 426

def eql?(entry)
  synonyms.include?(entry.media_range)
end

#hash ⇒ Object

Returns

Fixnum

A hash based on the super range.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 435

def hash; super_range.hash; end

#super_range ⇒ Object

Returns

String

The primary media range for this accept type, i.e. either the first synonym or, if none exist, the media range.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 453

def super_range
  synonyms.first || @media_range
end

#synonyms ⇒ Object

Returns

Array

All Accept header values, such as "text/html", that match this type.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 440

def synonyms
  return @syns if @syns
  if mime = Merb.available_mime_types[Merb::ResponderMixin::MIMES[@media_range]]
    @syns = mime[:accepts]
  else
    @syns = []
  end
end

#to_s ⇒ Object

Returns

String

The accept type as a string, i.e. the media range.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 466

def to_s
  @media_range
end

#to_sym ⇒ Object

Returns

Symbol: The type as a symbol, e.g. :html.



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# File 'lib/merb-core/controller/mixins/responder.rb', line 459

def to_sym
  Merb.available_mime_types.select{|k,v| 
    v[:accepts] == synonyms || v[:accepts][0] == synonyms[0]}.flatten.first
end