Serialize Tempfile zum Senden im Hintergrund-Worker

Question

Meine Idee ist es, ein TempFile in eine Zeichenfolge zu konvertieren und diese Zeichenfolge dann wieder in eine TempFile zu konvertieren. Gibt es einen einfacheren Weg, dies mit Ruby zu tun?

file = #<File:/var/folders/b6/c3fypxm50b75hszctcgr8brm0000gn/T/RackMultipart20160603-8771-rehwdq.pdf> 

string_file = file.to_s 
new_file = file.to_file 

Answer 1

Was ist mit so etwas? Dies funktioniert mit einer einfachen Textdatei für mich.

Rubin

require 'json/add/struct' 

Struct.new("FileObject", :name, :content) 

file = File.open('/tmp/file.txt',mode='r') 
file_name = file.path.split('/').last 
file_contents = file.read 
file_obj = Struct::FileObject.new(file_name,file_contents) 
file_json = file_obj.to_json 
file.close 

## Convert back to file 
new_file_obj = JSON.parse(file_json, :create_additions => true) 
new_file = File.open('/tmp/saved_' + new_file_obj.name,'w+') 
new_file.write(new_file_obj.content) 
new_file.close 

Ausgabe

2.3.0 :001 > require 'json/add/struct' 
=> true 
2.3.0 :002 > Struct.new("FileObject", :name, :content) 
=> Struct::FileObject 
2.3.0 :003 > file = File.open('/tmp/file.txt',mode='r') 
=> #<File:/tmp/file.txt> 
2.3.0 :004 > file_name = file.path.split('/').last 
=> "file.txt" 
2.3.0 :005 > file_contents = file.read 
=> "some file content\nblah\n\nblah blah\n" 
2.3.0 :006 > file_obj = Struct::FileObject.new(file_name,file_contents) 
=> #<struct Struct::FileObject name="file.txt", content="some file content\nblah\n\nblah blah\n"> 
2.3.0 :007 > file_json = file_obj.to_json 
=> "{\"json_class\":\"Struct::FileObject\",\"v\":[\"file.txt\",\"some file content\\nblah\\n\\nblah blah\\n\"]}" 
2.3.0 :008 > file.close 
=> nil 
2.3.0 :009 > new_file_obj = JSON.parse(file_json, :create_additions => true) 
=> #<struct Struct::FileObject name="file.txt", content="some file content\nblah\n\nblah blah\n"> 
2.3.0 :010 > new_file = File.open('/tmp/saved_' + new_file_obj.name,'w+') 
=> #<File:/tmp/saved_file.txt> 
2.3.0 :011 > new_file.write(new_file_obj.content) 
=> 34 
2.3.0 :012 > new_file.close 
=> nil