trabajo-afectivo/lib/static_assets.rb

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module StaticAssets
def self.data_url_attributes( data_url )
data = {}
if data_url =~ /^data:(.+?);base64,(.+?)$/
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data[:mime_type] = $1
data[:content] = Base64.decode64($2)
return data
end
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raise "Unable to parse data url: #{data_url.substr(0, 100)}"
end
# store image 1:1
def self.store_raw( content, content_type )
Store.remove( object: 'System::Logo', o_id: 1 )
Store.add(
object: 'System::Logo',
o_id: 1,
data: content,
filename: 'image',
preferences: {
'Content-Type' => content_type
},
)
Digest::MD5.hexdigest( content )
end
# read raw 1:1
def self.read_raw
list = Store.list( object: 'System::Logo', o_id: 1 )
if list && list[0]
return Store.find( list[0] )
end
raise 'No such raw logo!'
end
# store image in right size
def self.store( content, content_type )
Store.remove( object: 'System::Logo', o_id: 2 )
Store.add(
object: 'System::Logo',
o_id: 2,
data: content,
filename: 'image',
preferences: {
'Content-Type' => content_type
},
)
StaticAssets.sync
Digest::MD5.hexdigest( content )
end
# read image
def self.read
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# use reduced dimensions
list = Store.list( object: 'System::Logo', o_id: 2 )
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# as fallback use 1:1
if !list || !list[0]
list = Store.list( object: 'System::Logo', o_id: 1 )
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end
# store hash in config
if list && list[0]
file = Store.find( list[0] )
hash = Digest::MD5.hexdigest( file.content )
Setting.set('product_logo', hash)
return file
end
end
# sync image to fs
def self.sync
file = read
return if !file
hash = Digest::MD5.hexdigest( file.content )
path = "#{Rails.root.to_s}/public/assets/images/#{hash}"
File.open( path, 'wb' ) do |f|
f.puts file.content
end
end
end