Sync with Picasa
================
Useful if you want to allow Picasa to be used as a front-end for
managing image assets.
Lots still to todo, including:
* Get this working on EM Httpclient2. Currently using Mechanize
for the SSL connection to fetch session cookie and Net:HTTP
for all api calls (due to the ease of setting authorisation
headers and http method). Mechanize is also used for fetching
and saving files.
Need to be able to configure EM client to use ssl, a goolge
auth header, application/atom+xml content-type and variable
http verbs (as dryly as possible).
* tests... hardly tested at all. Lots is probably broken!
This is just an initial version knocked together in a day or so
to fulfill a requirement, I will be adding to it over the next
days and weeks.
Usage (api is likely to change):
=====
declare some constants:
[RAILS_ROOT]
PICASA_ASSETS_PATH = [sync'd images saved here]
GOOGLE_EMAIL =
GOOGLE_PASS =
GOOGLE_USER =
Create a new album on Picasa and return its google id.
album = Picasync::Album.new("Summer Holiday")
album.create!
puts album.api_id
album = Picasync::Album.find_by_title("Summer Holiday")
album.delete!
albums = Picasync::Album.find(:all)
Include all photographs in find:
albums = Picasync::Album.find(:all, :images)
Images included by default for id/title find:
albums = Picasync::Album.find_by_title('title')
albums = Picasync::Album.find_by_id(id)
Generate CSVs:
Picasync::Sync::CSV.new
produces two csvs linked by foreign key:
(format has changed, both csvs now include picasa album/photo ids)
albums.csv
id,updated_at,title
1|2008-02-29T15:57:42.000Z|Foo
2|2008-02-29T10:52:51.000Z|Bar
images.csv
album_id,album_title,updated_on,tiny,small,medium,large [local file names hashed from Picasa uri]
1|Foo|2008-02-29T15:57:42.000Z|dd7a4b8bc3a3.jpg|5a931bc7a07a.jpg|f5597e87ab07.jpg|ab441ebc79bc.jpg
2|Bar|2008-02-29T15:42:34.000Z|ffc41b6bb103.jpg|a04e32a71876.jpg|a1945a821036.jpg|05dae39288c8.jpg
2|Bar|2008-02-29T15:42:34.000Z|171195e2e0e9.jpg|849f7eefb72b.jpg|6316aa373cc5.jpg|146037f723de.jpg
2|Bar|2008-02-29T15:42:34.000Z|d87b6d955b02.jpg|5f7f0d5e3960.jpg|239ce36ddc49.jpg|13e01b353904.jpg
2|Bar|2008-02-29T15:42:34.000Z|f32130c1510a.jpg|b19c23e54f7d.jpg|5a350e4fdce2.jpg|6379545d4ef4.jpg
Sync local with modified galleries on Picasa:
Picasync::Sync::All.new
Various options to store images manually:
Picasync::Image.mirror(:all)
Picasync::Image.mirror(:album, album.id)
Picasync::Image.mirror(image.id, album.id)
Also:
images = Picasync::Image.find(:all, album.id)
image = Picasync::Image.find(img.id, album.id)
Loop through albums and print local file name and remote google path
for medium-size version:
albums = Picasync::Album.find(:all, :images)
albums.each do |album|
puts album.title
album.images.each do |image|
puts img.medium
puts img.medium_uri
end
end