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Upgrading instruction
Upgrading from 0.9.x and above to 1.2.3
Photo comes with an External Method called Upgrade.py. To upgrade your Photo
and Photo Folder objects, create an External Method in your Zope root as
follows.
Id: upgrade
Module Name: Photo.Upgrade
Function Name: upgrade
When you run this method, all of your Photo and Photo Folder objects will be
upgraded. You can then delete the External Method.
Upgrading from Photo 0.8.0 to 0.9.0
In order to support different image storages (specifically, ExtImage), the way
in which the original image is stored has changed. This means Photo objects
created under version 0.8.0 are not compatible with 0.9.0. To upgrade, you
can follow the instructions below on upgrading from Andrew Lahser's Photo
Product, substituting the following Python Script::
"""Convert 0.8.0 Photo objects to 0.9.0 Photo objects."""
REQUEST = context.REQUEST
# Upgrade Photo Folder
context.manage_addProperty('engine', 'image_engines', 'selection')
context.manage_addProperty('store', 'image_stores', 'selection')
context.manage_changeProperties(engine = 'PIL', store = 'Image')
# Upgrade Photos
for photo in context.objectItems(['Photo']):
# Convert old photo object to new.
photoid = photo[0]
photo = photo[1]
context.manage_delObjects([photoid,], REQUEST=REQUEST)
id = context.manage_addProduct['Photo'].manage_addPhoto(
photoid, photo.title, photo.data,
store='Image', engine='PIL', REQUEST=REQUEST)
newphoto = getattr(context, id)
# Add old properties to new photo.
for prop in photo.propertyMap():
try: newphoto.manage_addProperty(prop['id'], None, prop['type'])
except: pass
# Assign old property values to new photo.
propmap = {}
for id, value in photo.propertyItems():
propmap[id] = value
try: newphoto.manage_changeProperties(propmap)
except: pass
# Clear new Photo displays.
displayids = newphoto.displayIds(exclude=None)
newphoto.manage_delDisplays(displayids)
# Create old display sizes.
for display in photo.displayMap(exclude=None):
id = display['id']
width = display['width']
height = display['height']
newphoto.manage_addDisplay(id, width, height)
return 'Done.'
Upgrading from Andrew Lahser's Photo Product
Unfortunately, the new Photo product is now quite a bit different than the old
Photo product. Because of this, there is no direct way to upgrade old Photo
objects. It would be possible to create a script, but since there are several
additional options in the new product, it would be better to recreate the
photos from scratch.
Since Photo now supports WebDAV/FTP, you can create a Photo Folder, set the
settings as desired, and transfer the Photos to the Photo Folder. This will
create Photo objects with the default settings from your Photo Folder instead
of creating Zope Image objects that would need to be converted.
Photo comes with an External Method called Upgrade.py. To upgrade your Photo
and Photo Folder objects, create an External Method in your Zope root as
follows.
Id: upgrade
Module Name: Photo.Upgrade
Function Name: upgrade
When you run this method, all of your Photo and Photo Folder objects will be
upgraded. You can then delete the External Method.
Upgrading from Photo 0.8.0 to 0.9.0
In order to support different image storages (specifically, ExtImage), the way
in which the original image is stored has changed. This means Photo objects
created under version 0.8.0 are not compatible with 0.9.0. To upgrade, you
can follow the instructions below on upgrading from Andrew Lahser's Photo
Product, substituting the following Python Script::
"""Convert 0.8.0 Photo objects to 0.9.0 Photo objects."""
REQUEST = context.REQUEST
# Upgrade Photo Folder
context.manage_addProperty('engine', 'image_engines', 'selection')
context.manage_addProperty('store', 'image_stores', 'selection')
context.manage_changeProperties(engine = 'PIL', store = 'Image')
# Upgrade Photos
for photo in context.objectItems(['Photo']):
# Convert old photo object to new.
photoid = photo[0]
photo = photo[1]
context.manage_delObjects([photoid,], REQUEST=REQUEST)
id = context.manage_addProduct['Photo'].manage_addPhoto(
photoid, photo.title, photo.data,
store='Image', engine='PIL', REQUEST=REQUEST)
newphoto = getattr(context, id)
# Add old properties to new photo.
for prop in photo.propertyMap():
try: newphoto.manage_addProperty(prop['id'], None, prop['type'])
except: pass
# Assign old property values to new photo.
propmap = {}
for id, value in photo.propertyItems():
propmap[id] = value
try: newphoto.manage_changeProperties(propmap)
except: pass
# Clear new Photo displays.
displayids = newphoto.displayIds(exclude=None)
newphoto.manage_delDisplays(displayids)
# Create old display sizes.
for display in photo.displayMap(exclude=None):
id = display['id']
width = display['width']
height = display['height']
newphoto.manage_addDisplay(id, width, height)
return 'Done.'
Upgrading from Andrew Lahser's Photo Product
Unfortunately, the new Photo product is now quite a bit different than the old
Photo product. Because of this, there is no direct way to upgrade old Photo
objects. It would be possible to create a script, but since there are several
additional options in the new product, it would be better to recreate the
photos from scratch.
Since Photo now supports WebDAV/FTP, you can create a Photo Folder, set the
settings as desired, and transfer the Photos to the Photo Folder. This will
create Photo objects with the default settings from your Photo Folder instead
of creating Zope Image objects that would need to be converted.