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revision.py
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revision.py
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# encoding: utf-8
from datetime import datetime, timedelta
from pylons.i18n import get_lang
import ckan.logic as logic
import ckan.lib.base as base
import ckan.model as model
import ckan.lib.helpers as h
from ckan.common import _, c, request
class RevisionController(base.BaseController):
def __before__(self, action, **env):
base.BaseController.__before__(self, action, **env)
context = {'model': model, 'user': c.user,
'auth_user_obj': c.userobj}
if c.user:
try:
logic.check_access('revision_change_state', context)
c.revision_change_state_allowed = True
except logic.NotAuthorized:
c.revision_change_state_allowed = False
else:
c.revision_change_state_allowed = False
try:
logic.check_access('site_read', context)
except logic.NotAuthorized:
base.abort(403, _('Not authorized to see this page'))
def index(self):
return self.list()
def list(self):
format = request.params.get('format', '')
if format == 'atom':
# Generate and return Atom 1.0 document.
from webhelpers.feedgenerator import Atom1Feed
feed = Atom1Feed(
title=_(u'CKAN Repository Revision History'),
link=h.url_for(controller='revision', action='list', id=''),
description=_(u'Recent changes to the CKAN repository.'),
language=unicode(get_lang()),
)
# TODO: make this configurable?
# we do not want the system to fall over!
maxresults = 200
try:
dayHorizon = int(request.params.get('days', 5))
except:
dayHorizon = 5
ourtimedelta = timedelta(days=-dayHorizon)
since_when = datetime.now() + ourtimedelta
revision_query = model.repo.history()
revision_query = revision_query.filter(
model.Revision.timestamp >= since_when).filter(
model.Revision.id != None)
revision_query = revision_query.limit(maxresults)
for revision in revision_query:
package_indications = []
revision_changes = model.repo.list_changes(revision)
resource_revisions = revision_changes[model.Resource]
package_extra_revisions = revision_changes[model.PackageExtra]
for package in revision.packages:
if not package:
# package is None sometimes - I don't know why,
# but in the meantime while that is fixed,
# avoid an exception here
continue
if package.private:
continue
number = len(package.all_revisions)
package_revision = None
count = 0
for pr in package.all_revisions:
count += 1
if pr.revision.id == revision.id:
package_revision = pr
break
if package_revision and package_revision.state == \
model.State.DELETED:
transition = 'deleted'
elif package_revision and count == number:
transition = 'created'
else:
transition = 'updated'
for resource_revision in resource_revisions:
if resource_revision.package_id == package.id:
transition += ':resources'
break
for package_extra_revision in package_extra_revisions:
if package_extra_revision.package_id == \
package.id:
if package_extra_revision.key == \
'date_updated':
transition += ':date_updated'
break
indication = "%s:%s" % (package.name, transition)
package_indications.append(indication)
pkgs = u'[%s]' % ' '.join(package_indications)
item_title = u'r%s ' % (revision.id)
item_title += pkgs
if revision.message:
item_title += ': %s' % (revision.message or '')
item_link = h.url_for(controller='revision', action='read', id=revision.id)
item_description = _('Datasets affected: %s.\n') % pkgs
item_description += '%s' % (revision.message or '')
item_author_name = revision.author
item_pubdate = revision.timestamp
feed.add_item(
title=item_title,
link=item_link,
description=item_description,
author_name=item_author_name,
pubdate=item_pubdate,
)
feed.content_type = 'application/atom+xml'
return feed.writeString('utf-8')
else:
query = model.Session.query(model.Revision)
c.page = h.Page(
collection=query,
page=self._get_page_number(request.params),
url=h.pager_url,
items_per_page=20
)
return base.render('revision/list.html')
def read(self, id=None):
if id is None:
base.abort(404)
c.revision = model.Session.query(model.Revision).get(id)
if c.revision is None:
base.abort(404)
pkgs = model.Session.query(model.PackageRevision).\
filter_by(revision=c.revision)
c.packages = [pkg.continuity for pkg in pkgs if not pkg.private]
pkgtags = model.Session.query(model.PackageTagRevision).\
filter_by(revision=c.revision)
c.pkgtags = [pkgtag.continuity for pkgtag in pkgtags
if not pkgtag.package.private]
grps = model.Session.query(model.GroupRevision).\
filter_by(revision=c.revision)
c.groups = [grp.continuity for grp in grps]
return base.render('revision/read.html')
def diff(self, id=None):
if 'diff' not in request.params or 'oldid' not in request.params:
base.abort(400)
c.revision_from = model.Session.query(model.Revision).get(
request.params.getone('oldid'))
c.revision_to = model.Session.query(model.Revision).get(
request.params.getone('diff'))
c.diff_entity = request.params.get('diff_entity')
if c.diff_entity == 'package':
c.pkg = model.Package.by_name(id)
diff = c.pkg.diff(c.revision_to, c.revision_from)
elif c.diff_entity == 'group':
c.group = model.Group.by_name(id)
diff = c.group.diff(c.revision_to, c.revision_from)
else:
base.abort(400)
c.diff = diff.items()
c.diff.sort()
return base.render('revision/diff.html')
def edit(self, id=None):
if id is None:
base.abort(404)
revision = model.Session.query(model.Revision).get(id)
if revision is None:
base.abort(404)
action = request.params.get('action', '')
if action in ['delete', 'undelete']:
# this should be at a lower level (e.g. logic layer)
if not c.revision_change_state_allowed:
base.abort(403)
if action == 'delete':
revision.state = model.State.DELETED
elif action == 'undelete':
revision.state = model.State.ACTIVE
model.Session.commit()
h.flash_success(_('Revision updated'))
h.redirect_to(
h.url_for(controller='revision', action='read', id=id))