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Simple Plone Migration

Author:
msm-art
Posted:
January 18, 2008
Language:
Python
Version:
.96
Score:
2 (after 2 ratings)

This is a very simple script to do a simple migration from plone content to django.

ATNewsItems and PloneArticles are imported into the django model Article (with Foreignkey to the django models File and Image). ATDocuments are imported into the django model Page.

Usage

  1. Make sure that the Python version running Zope can import django
  2. The django database should be writeable from within the Zope environment
  3. Set the shell variable DJANGO_MODULE_SETTING to the settings file of the django project you want to import your Plone content to
  4. Start the Zope server in the debug modus:

    $ bin/zopectl debug

Then import the python module above, and pass the site you want to migrate to the start function:

import simple_migration
mysite = app.mysite
simple_migration.start(mysite)
Found 1253 objects
Saved Test Document Type: ATNewsItem
...

Hope it helps someone.

Used for the migration of Plone-2.5.3 content in a Python-2.4.4 environment.

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from os import makedirs
from django.conf import settings
from django.contrib.auth.models import User
from django.template import defaultfilters

# The following models should be located in models.py of your django app
# In place of the code below import the models e.g. 
# from mydjangosite.app.models import Article, Page, File, Image, Tag

# Start

class Article(models.Model):
    objects = GroupManager()    
    title = models.CharField(max_length=150)
    slug = models.SlugField(max_length=150, prepopulate_from=('title',))
    STATE_CHOICES = (('D','Draft'),('P','Published'),('S','Private'))
    TYPE_CHOICES = (('N','News'),('C','CD feature'),('A','article'),('I','interviews'),('S','series'), ('B','blog'))
    state = models.CharField(max_length=1, choices=STATE_CHOICES, default='D')
    type = models.CharField(max_length=1, choices=TYPE_CHOICES, default='N')
    description = models.TextField(blank=True, null=True) 
    content = models.TextField()
    author = models.ForeignKey(User, default=2)
    creation_date = models.DateTimeField(blank=True)
    publication_date = models.DateTimeField(blank=True, null=True)
    modification_date = models.DateTimeField(blank=True)
    tags = models.ManyToManyField(Tag , filter_interface=models.HORIZONTAL, blank=True, null=True) 
    links = models.ManyToManyField('self', filter_interface=models.HORIZONTAL, blank=True, null=True) 

class File(models.Model):
    order = models.IntegerField(default=1)
    file = models.FileField(upload_to='%Y/%m/', blank=True, null=True)
    title = models.CharField(max_length=150, null=True, core=True)
    description = models.CharField(max_length=150, null=True, blank=True)
    FORMAT = (('audio/mpeg','audio/mpeg'),)
    format = models.CharField(max_length=150, choices=FORMAT, null=True, blank=True)
    article = models.ForeignKey('Article', edit_inline=True, num_in_admin=1)

class Image(models.Model):
    order = models.IntegerField(default=1)
    image = models.ImageField(upload_to='%Y/%m/',blank=True, null=True)
    title = models.CharField(max_length=150, null=True,core=True)
    description = models.CharField(max_length=150, blank=True, null=True)
    article = models.ForeignKey('Article', edit_inline=True, num_in_admin=1)

class Page(models.Model):
    url = models.CharField(_('URL'), max_length=150, validator_list=[validators.isAlphaNumericURL], help_text=_("Example: '/about/contact/'. Make sure to have leading and trailing slashes."))
    title = models.CharField(max_length=150)
    content = models.TextField()

class TagType(models.Model):
    type = models.CharField(maxlength=5

# End

media_root = settings.MEDIA_ROOT

def write_file(dir_name, file_name, plone_object):
    try:            
        makedirs(media_root + dir_name)
    except:
        # Directory already exists
        pass
    fd = open(media_root + dir_name + file_name, 'w')
    try:
        fd.write(plone_object.data)
    except:
        fd.write(plone_object.data.data)

def get_plonearticle_images(plone_object, django_object):

    p, d = plone_object, django_object

    p.REQUEST = 'FAKE' 

    images = p.getImageBrains()

    if len(images)>0:
        for x in images:
            image = x.getObject()
            i = Image()
            i.title = image.Title()
            i.description = image.Description()
            
            dir_name = p.created().strftime('%Y/%m/')
            file_name = d.slug + '-' + image.getId() + '.jpg'

            i.image = dir_name + file_name
            
            write_file(dir_name, file_name, image)
            i.article_id = d.id
            i.save()


def get_plonearticle_links(plone_object, django_object):

    p, d = plone_object, django_object
    for x in p.getLinks():
                l = Article.objects.filter(slug=x.getId())
                if l:
                    d.links.add(l[0])

def get_at_links(plone_object, django_object):

    p, d = plone_object, django_object
    for x in p.getRelatedItems():
            l = Article.objects.filter(slug=x.getId())
            if l:
                d.links.add(l[0])


def get_plonearticle_attchments(plone_object, django_object):

    p, d = plone_object, django_object
    for x in p.getAttachmentBrains():
        file = x.getObject()
        
        f = File()
        f.title = file.Title()
        f.description = file.Description()

        dir_name = p.created().strftime('%Y/%m/')

        if file.Format() == 'audio/mpeg':
            file_name = d.slug + '-' + file.getId() + '.mp3'
        else:
            file_name = d.slug + '-' + file.getId()

        f.file = dir_name + file_name
        f.format = file.Format()

        write_file(dir_name, file_name, file)
        f.article_id = d.id
        f.save()

def get_atnews_image(plone_object, django_object):

    p, d = plone_object, django_object
    image = p.getImage()
    if image:
        i = Image()
        i.title = image.Title()
        i.description = image.Description()
        
        dir_name = p.created().strftime('%Y/%m/')
        file_name = d.slug + '-' + image.getId() + '.jpg'

        i.image = dir_name + file_name
        
        write_file(dir_name, file_name, image)
        i.article_id = d.id
        i.save()


def get_dc_core(plone_object, django_object):
    """ Gets these DC-fields: Title, id, Description, Subject,
    Creation Date, Modification Date, Effective Date"""

    p, d = plone_object, django_object

    d.title = p.Title()
    d.slug = p.getId()

    d.creation_date = p.creation_date.ISO()
    d.modification_date = p.modification_date.ISO()
    if p.effective_date:
        d.publication_date = p.effective_date.ISO()
    
    t, s = User.objects.get_or_create(username=p.Creator())
    d.author_id = t.id 
    d.description = p.Description()
    d.save()

    for subject in p.Subject():
        slug = defaultfilters.slugify(subject)
        t, s = Tag.objects.get_or_create(name=subject, slug=slug)
        d.tags.add(t)

def get_items(r):
    for x in r:
        p = x.getObject()

        if p.meta_type == 'PloneArticle':
            a = Article()
            a.state = 'P'
            a.content = p.getText()
            get_dc_core(p, a)
            get_plonearticle_images(p, a)
            get_plonearticle_links(p, a)
            get_plonearticle_attchments(p, a)
            a.save() 
            print 'Saved', a.title

        if p.meta_type == 'ATNewsItem':
            a = Article()
            a.state = 'P'
            a.content = p.getText()
            get_dc_core(p, a)
            get_at_links(p, a)
            get_atnews_image(p, a)
            a.save() 
            print 'Saved', a.title, 'Type: ATNewsItem'

        if p.meta_type == 'ATDocument':
            d = Page()
            d.content = p.getText()
            d.title = p.Title()
            d.url = p.getId()
            d.save()
            print 'Saved', d.title, 'Type: ATDocument'

        if p.meta_type == 'Portal File':
            pass

def start(context):
    types = ['ATNewsItem','PloneArticle', 'ATDocument']
    r = context.portal_catalog.searchResults(meta_type={'query':types,'operator':'or'},sort_on='Date')
    print 'Found', len(r), ' objects'
    get_items(r)

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