Hi all,
First of all, why does Magnolia think we should launch migration tasks from a
version handler class? Migrating data is neither conceptually connected to
increasing a module's version number nor it's technically practical. That way,
running the tasks is painful, since it's invasive, too circuitous (version
increase, magnolia restart...) and hardly repeatable.
A much cleaner way would be to run them from a groovy script within a running
Magnolia. I assembled some of the main migration task classes and tried to run
it, but ran into NullPointerExceptions. I double checked DMS data as well as
constructor arguments (from what I could tell from the argument names; there's
no javadoc). My script looks as follows:
[code]import info.magnolia.dam.setup.migration.*;
import info.magnolia.dam.app.setup.migration.*;
// DMS -> DAM (DMS must be installed and old data imported)
new MoveDataWorkspaceToDamMigrationTask(
"Migration task: Migrate DMS content to DAM", "Migrate DMS to DAM",
Arrays.asList("/semiramis"),
"/",
"dms"
).doExecute();
// website -> DAM
new MoveContentToDamMigrationTask(
"Migration task: Migrate Uploaded content to DAM repository", "",
"website",
Arrays.asList("/semiramis"),
"/moved_uploaded",
null
).doExecute();
// website/FCKEditore -> DAM
new MoveFCKEditorContentToDamMigrationTask(
"Migration task: Migrate Uploaded content to DAM repository", "",
"website",
Arrays.asList("/semiramis"),
"/moved_uploaded_fck",
null
).doExecute();
// website/links etc. -> DAM
new CleanContentForDamMigrationTask(
"Migration task: Clean Content repository", "",
"website",
Arrays.asList("/semiramis")
).doExecute();[/code]
I suspect the problem might be the fact I executed those tasks from a groovy
script instead of a version handler, but debugging from a groovy script is
hardly possible in a productive way.
Have others ran into similar problems?
Does someone understand the idea behind Magnolia's suggested version handler
setup?
Cheers,
Cedric
--
Context is everything:
http://forum.magnolia-cms.com/forum/thread.html?threadId=eea49958-142d-4666-b683-07881e085129
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