Module: CubaApi::Utils

Defined in:
lib/cuba_api/utils.rb

Instance Method Summary collapse

Instance Method Details

#browser_only_cache ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 77

def browser_only_cache
  res[ 'Date' ] = rfc2616
  res[ 'Expires' ] = "Fri, 01 Jan 1990 00:00:00 GMT"
  res[ 'Cache-Control' ] = "private, max-age=0, must-revalidate"
end

#browser_only_cache_no_store ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 83

def browser_only_cache_no_store
  browser_only_cache
  res[ 'Cache-Control' ] += ", no-store"
end

#content_type(mime) ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 100

def content_type( mime )
  res[ 'Content-Type' ] = mime if mime
end

#expires_in(minutes) ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 71

def expires_in( minutes )
  now = DateTime.now
  res[ 'Date' ] = rfc2616( now )
  res[ 'Expires' ] = rfc2616( now + minutes / 1440.0 )
end

#head ⇒ Object

matcher



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# File 'lib/cuba_api/utils.rb', line 10

def head
  req.head?
end

#last_modified(last) ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 60

def last_modified( last )
  res[ 'Last-Modified' ] = rfc2616( last ) if last
end

#modified_since ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 64

def modified_since
  @modified_since ||=
    if date = env[ 'HTTP_IF_MODIFIED_SINCE' ]
      DateTime.parse( date )
    end
end

#no_body(status) ⇒ Object

convenient method for status only responses



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# File 'lib/cuba_api/utils.rb', line 19

def no_body( status )
  res.status = Rack::Utils.status_code( status )
  res.write Rack::Utils::HTTP_STATUS_CODES[ res.status ]
  res['Content-Type' ] = 'text/plain'
end

#no_cache ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 93

def no_cache
  res["Date"] = rfc2616
  res["Expires"] = "Fri, 01 Jan 1990 00:00:00 GMT"
  res["Pragma"] = "no-cache"
  res["Cache-Control"] = "no-cache, must-revalidate"
end

#no_cache_no_store ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 88

def no_cache_no_store
  no_cache
  res["Cache-Control"] += ", no-store"
end

#no_path ⇒ Object

matcher



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# File 'lib/cuba_api/utils.rb', line 5

def no_path
  Proc.new { env[ 'PATH_INFO' ].empty? }
end

#offset_n_limit(method, set) ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 53

def offset_n_limit( method, set )
  count = set.count
  offset = to_int( 'offset' ).to_i
  limit = ( to_int( 'count' ) || count ) - 1 + offset
  { method => set[ offset..limit ], :offset => offset, :total_count => count }
end

#option ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 14

def option
  req.options?
end

#rfc2616(time = DateTime.now) ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 104

def rfc2616( time = DateTime.now )
  time.to_time.utc.rfc2822.sub( /.....$/, 'GMT')
end

#to_boolean(name, default = nil) ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 44

def to_boolean( name, default = nil )
  v = req[ name ]
  if v
    v == 'true'
  else
    default
  end
end

#to_float(name, default = nil) ⇒ Object

params



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# File 'lib/cuba_api/utils.rb', line 26

def to_float( name, default = nil )
 v = req[ name ]
 if v
   v.to_f
 else
   default
 end
end

#to_int(name, default = nil) ⇒ Object 



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# File 'lib/cuba_api/utils.rb', line 35

def to_int( name, default = nil )
  v = req[ name ]
  if v
    v.to_i
  else
    default
  end
end