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plugin.py
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plugin.py
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# encoding: utf-8
import logging
import ckan.plugins as p
import ckan.lib.base as base
import ckan.lib.helpers as core_helpers
import ckanext.datapusher.logic.action as action
import ckanext.datapusher.logic.auth as auth
import ckanext.datapusher.helpers as helpers
import ckan.logic as logic
import ckan.model as model
import ckan.plugins.toolkit as toolkit
from ckan.common import _
log = logging.getLogger(__name__)
_get_or_bust = logic.get_or_bust
DEFAULT_FORMATS = [
'csv', 'xls', 'xlsx', 'tsv', 'application/csv',
'application/vnd.ms-excel',
'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
'ods', 'application/vnd.oasis.opendocument.spreadsheet',
]
class DatastoreException(Exception):
pass
class ResourceDataController(base.BaseController):
def resource_data(self, id, resource_id):
if toolkit.request.method == 'POST':
try:
toolkit.c.pkg_dict = p.toolkit.get_action('datapusher_submit')(
None, {'resource_id': resource_id}
)
except logic.ValidationError:
pass
core_helpers.redirect_to(
controller='ckanext.datapusher.plugin:ResourceDataController',
action='resource_data',
id=id,
resource_id=resource_id
)
try:
toolkit.c.pkg_dict = p.toolkit.get_action('package_show')(
None, {'id': id}
)
toolkit.c.resource = p.toolkit.get_action('resource_show')(
None, {'id': resource_id}
)
except (logic.NotFound, logic.NotAuthorized):
base.abort(404, _('Resource not found'))
try:
datapusher_status = p.toolkit.get_action('datapusher_status')(
None, {'resource_id': resource_id}
)
except logic.NotFound:
datapusher_status = {}
except logic.NotAuthorized:
base.abort(403, _('Not authorized to see this page'))
return base.render('package/resource_data.html',
extra_vars={'status': datapusher_status})
class DatapusherPlugin(p.SingletonPlugin):
p.implements(p.IConfigurable, inherit=True)
p.implements(p.IActions)
p.implements(p.IAuthFunctions)
p.implements(p.IResourceUrlChange)
p.implements(p.IDomainObjectModification, inherit=True)
p.implements(p.ITemplateHelpers)
p.implements(p.IRoutes, inherit=True)
legacy_mode = False
resource_show_action = None
def configure(self, config):
self.config = config
datapusher_formats = config.get('ckan.datapusher.formats', '').lower()
self.datapusher_formats = datapusher_formats.split() or DEFAULT_FORMATS
for config_option in ('ckan.site_url', 'ckan.datapusher.url',):
if not config.get(config_option):
raise Exception(
'Config option `{0}` must be set to use the DataPusher.'
.format(config_option))
def notify(self, entity, operation=None):
if isinstance(entity, model.Resource):
if (operation == model.domain_object.DomainObjectOperation.new or
not operation):
# if operation is None, resource URL has been changed, as
# the notify function in IResourceUrlChange only takes
# 1 parameter
context = {'model': model, 'ignore_auth': True,
'defer_commit': True}
if (entity.format and
entity.format.lower() in self.datapusher_formats and
entity.url_type != 'datapusher'):
try:
task = p.toolkit.get_action('task_status_show')(
context, {
'entity_id': entity.id,
'task_type': 'datapusher',
'key': 'datapusher'}
)
if task.get('state') == 'pending':
# There already is a pending DataPusher submission,
# skip this one ...
log.debug(
'Skipping DataPusher submission for '
'resource {0}'.format(entity.id))
return
except p.toolkit.ObjectNotFound:
pass
try:
log.debug('Submitting resource {0}'.format(entity.id) +
' to DataPusher')
p.toolkit.get_action('datapusher_submit')(context, {
'resource_id': entity.id
})
except p.toolkit.ValidationError, e:
# If datapusher is offline want to catch error instead
# of raising otherwise resource save will fail with 500
log.critical(e)
pass
def before_map(self, m):
m.connect(
'resource_data', '/dataset/{id}/resource_data/{resource_id}',
controller='ckanext.datapusher.plugin:ResourceDataController',
action='resource_data', ckan_icon='cloud-upload')
return m
def get_actions(self):
return {'datapusher_submit': action.datapusher_submit,
'datapusher_hook': action.datapusher_hook,
'datapusher_status': action.datapusher_status}
def get_auth_functions(self):
return {'datapusher_submit': auth.datapusher_submit,
'datapusher_status': auth.datapusher_status}
def get_helpers(self):
return {
'datapusher_status': helpers.datapusher_status,
'datapusher_status_description':
helpers.datapusher_status_description,
}