1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
module CarrierWave
module Storage
##
# This file serves mostly as a specification for Storage engines. There is no requirement
# that storage engines must be a subclass of this class.
#
class Abstract
attr_reader :uploader
def initialize(uploader)
@uploader = uploader
end
def identifier
uploader.filename
end
def store!(file)
end
def retrieve!(identifier)
end
def cache!(new_file)
raise NotImplementedError.new("Need to implement #cache! if you want to use #{self.class.name} as a cache storage.")
end
def retrieve_from_cache!(identifier)
raise NotImplementedError.new("Need to implement #retrieve_from_cache! if you want to use #{self.class.name} as a cache storage.")
end
def delete_dir!(path)
raise NotImplementedError.new("Need to implement #delete_dir! if you want to use #{self.class.name} as a cache storage.")
end
def clean_cache!(seconds)
raise NotImplementedError.new("Need to implement #clean_cache! if you want to use #{self.class.name} as a cache storage.")
end
end # Abstract
end # Storage
end # CarrierWave
|
