Class: Media::TempFile

Inherits:
Object
  • Object
show all
Defined in:
lib/media/temp_file.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data, content_type = nil) ⇒ TempFile

data may be one of:

- FileUpload object: like the kind returned in multibyte encoded file upload forms.
- Pathname object: then load data from the file pointed to by the pathname.
- IO object: read the contents of the io object, copy to tmp file.
- otherwise, dump the contents of the data to the tmp file.

if data is empty, we generate an empty one.



41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
 
# File 'lib/media/temp_file.rb', line 41

def initialize(data, content_type=nil)
  if data.nil?
    @tmpfile = TempFile.create_from_content_type(content_type)
  elsif data.respond_to?(:path)
    # we are dealing with an uploaded file object
    @tmpfile = TempFile.create_from_file(data.path, content_type, {mode: :move})
  elsif data.is_a?(StringIO)
    data.rewind
    @tmpfile = TempFile.create_from_data(data.read, content_type)
  elsif data.instance_of?(Pathname)
    @tmpfile = TempFile.create_from_file(data.to_s, content_type)
  else
    @tmpfile = TempFile.create_from_data(data, content_type)
  end
end

Class Method Details

.open(data, content_type = nil) ⇒ Object

like initialize, but if given a block, then it yields the TempFile and also unlinks the file at the end of the block.



61
62
63
64
65
66
67
68
69
70
71
72
73
 
# File 'lib/media/temp_file.rb', line 61

def self.open(data, content_type=nil)
  tmp = TempFile.new(data, content_type)
  if block_given?
    begin
      yield tmp
    ensure
      tmp.clear
    end
    nil
  else
    tmp
  end
end

.tempfile_path ⇒ Object 



21
22
23
 
# File 'lib/media/temp_file.rb', line 21

def self.tempfile_path
  ::Media::TMP_PATH
end

Instance Method Details

#any? ⇒ Boolean

Returns:

  • (Boolean) 


81
82
83
 
# File 'lib/media/temp_file.rb', line 81

def any?
  @tmpfile.any?
end

#clear ⇒ Object 



75
76
77
78
79
 
# File 'lib/media/temp_file.rb', line 75

def clear
  # this is not really needed, because the tmp files are deleted as soon as
  # @tmpfile gets garbage collected.
  # @tmpfile.unlink
end

#path ⇒ Object 



85
86
87
 
# File 'lib/media/temp_file.rb', line 85

def path
  @tmpfile.path
end

#to_s ⇒ Object 



89
90
91
 
# File 'lib/media/temp_file.rb', line 89

def to_s
  @tmpfile.path
end