I'm making a program to rename files based on the date/time they were
taken. My camera can take 5 fps, so I want to be able to handle
pictures taken at the same time (since the exif data isn't exact to less
than a second)
this is what I have so far:
---------code---------------
require('rubygems')
require('mini_exiftool')
require('LIB.BBI.rb')
def toBase36(num)
letter='A'
if num<10
num36 = num.to_s
else
while num>10
letter = letter.succ
num = num-1
end
num36=letter
end
return num36
end
def timecode(image)
if MiniExiftool.new(image)['SerialNumber'] == 620315997
owner="JD"
end
time = MiniExiftool.new(image)['DateTimeOriginal']
return to_mcode(time) +'_'+ toBase36(time.strftime('%d').to_i) +
toBase36(time.strftime('%H').to_i) +
time.strftime('%M%S')
end
def check(string)
if FileTest.exist?(string)
strArr = string.split('.')
newString = strArr.first.succ+'.'+strArr.last
check(newString)
else
finalString = string
end
return finalString
end
def renameFilesBTC(files)
files.each do |file|
ext = '.'+file.split('.').last
if file == timecode(file)+ext
puts file+' Already Renamed'
newName = file
elsif file != timecode(file)+ext &&
FileTest.exist?(timecode(file)+ext)
puts "Mulitple Files Same Time"
newName = check(timecode(file)+'1'+ext)
else
puts "Rename"
newName = timecode(file)+ext
end
File.rename(file , newName)
end
end
···
------------------------------------------------------------------
I'm testing with 3 pictures taken at the same time (actually, 3 copies
of one picture).
The first two rename fine, but the third raises
------------------------------------
TypeError: cannot convert nil into String
from ./renameByDateTime.rb:54:in `rename'
from ./renameByDateTime.rb:54:in `renameFilesBTC'
from ./renameByDateTime.rb:42:in `each'
from ./renameByDateTime.rb:42:in `renameFilesBTC'
from (irb):3
---------------------------------------
For some reason, check() returns nil for the third image, and I can't
see why it would do that.
--
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