def main(self):
# By the time main() is invoked, arguments are parsed and available as
# self.args. If you need more complicated argument validation than
# argparse gives you, do it here:
if self.args.batch_size < 1:
sys.exit('--batch size must be positive')
if os.path.exists(self.args.path):
sys.exit('Cannot download to %s; file exists' % self.args.path)
# Arguments passed to etl.py are also parsed and available as
# self.etl_args. Here we use them to figure out the requested course's
# namespace.
namespace = etl_lib.get_context(
self.etl_args.course_url_prefix).get_namespace_name()
# Because our models are namespaced, we need to change to the requested
# course's namespace when doing datastore reads.
with common_utils.Namespace(namespace):
# This base query can be modified to add whatever filters you need.
query = models.Student.all()
students = common_utils.iter_all(query, self.args.batch_size)
# Write the results. Done!
with open(self.args.path, 'w') as f:
for student in students:
f.write(student.email)
f.write('\n')
def main(self):
# By the time main() is invoked, arguments are parsed and available as
# self.args. If you need more complicated argument validation than
# argparse gives you, do it here:
if self.args.batch_size < 1:
sys.exit('--batch size must be positive')
if os.path.exists(self.args.path):
sys.exit('Cannot download to %s; file exists' % self.args.path)
# Arguments passed to etl.py are also parsed and available as
# self.etl_args. Here we use them to figure out the requested course's
# namespace.
namespace = etl_lib.get_context(
self.etl_args.course_url_prefix).get_namespace_name()
# Because our models are namespaced, we need to change to the requested
# course's namespace before doing datastore reads or we won't find its
# data. Get the current namespace so we can change back when we're done.
old_namespace = namespace_manager.get_namespace()
try:
namespace_manager.set_namespace(namespace)
# For this example, we'll only process the first 1000 results. Can
# do a keys_only query because the student's email is key.name().
keys = models.Student.all(keys_only=True).fetch(1000)
finally:
# The current namespace is global state. We must change it back to
# the old value no matter what to prevent corrupting datastore
# operations that run after us.
namespace_manager.set_namespace(old_namespace)
# Write the results. Done!
with open(self.args.path, 'w') as f:
for key in keys:
f.write(str(key.name() + '\n'))
def main(self):
# By the time main() is invoked, arguments are parsed and available as
# self.args. If you need more complicated argument validation than
# argparse gives you, do it here:
if self.args.batch_size < 1:
sys.exit('--batch size must be positive')
if os.path.exists(self.args.path):
sys.exit('Cannot download to %s; file exists' % self.args.path)
# Arguments passed to etl.py are also parsed and available as
# self.etl_args. Here we use them to figure out the requested course's
# namespace.
namespace = etl_lib.get_context(
self.etl_args.course_url_prefix).get_namespace_name()
# Because our models are namespaced, we need to change to the requested
# course's namespace when doing datastore reads.
with common_utils.Namespace(namespace):
# This base query can be modified to add whatever filters you need.
query = models.Student.all()
students = common_utils.iter_all(query, self.args.batch_size)
# Write the results. Done!
with open(self.args.path, 'w') as f:
for student in students:
f.write(student.email)
f.write('\n')
def _upload(upload_type, archive_path, course_url_prefix, force_overwrite):
_LOG.info("Processing course with URL prefix %s from archive path %s", course_url_prefix, archive_path)
context = etl_lib.get_context(course_url_prefix)
if not context:
_die("No course found with course_url_prefix %s" % course_url_prefix)
if upload_type == _TYPE_COURSE:
_upload_course(context, archive_path, course_url_prefix, force_overwrite)
elif upload_type == _TYPE_DATASTORE:
_upload_datastore()
def _upload(upload_type, archive_path, course_url_prefix):
_LOG.info('Processing course with URL prefix %s from archive path %s',
course_url_prefix, archive_path)
context = etl_lib.get_context(course_url_prefix)
if not context:
_die('No course found with course_url_prefix %s' % course_url_prefix)
if upload_type == _TYPE_COURSE:
_upload_course(context, archive_path, course_url_prefix)
elif upload_type == _TYPE_DATASTORE:
_upload_datastore()
def main(self):
# By the time main() is invoked, arguments are parsed and available as
# self.args. If you need more complicated argument validation than
# argparse gives you, do it here:
if self.args.batch_size < 1:
sys.exit('--batch size must be positive')
if not os.path.isdir(self.args.path):
sys.exit('Cannot download to %s; Its not a directory' %
self.args.path)
# Arguments passed to etl.py are also parsed and available as
# self.etl_args. Here we use them to figure out the requested course's
# namespace.
namespace = etl_lib.get_context(
self.etl_args.course_url_prefix).get_namespace_name()
# Because our models are namespaced, we need to change to the requested
# course's namespace before doing datastore reads or we won't find its
# data. Get the current namespace so we can change back when we're done.
old_namespace = namespace_manager.get_namespace()
try:
namespace_manager.set_namespace(namespace)
app_context = sites.get_app_context_for_namespace(namespace)
course = courses.Course(None, app_context=app_context)
if not course:
return
units = course.get_units()
for unit in units:
if unit.type != 'PA':
continue
content = prog_assignment.ProgAssignmentBaseHandler.get_content(
course, unit)
f = open(
self.args.path + '/' + namespace + '-problem-' +
str(unit.unit_id), 'w')
f.write(transforms.dumps(content))
finally:
# The current namespace is global state. We must change it back to
# the old value no matter what to prevent corrupting datastore
# operations that run after us.
namespace_manager.set_namespace(old_namespace)
def main(self):
# By the time main() is invoked, arguments are parsed and available as
# self.args. If you need more complicated argument validation than
# argparse gives you, do it here:
if self.args.batch_size < 1:
sys.exit('--batch size must be positive')
if not os.path.isdir(self.args.path):
sys.exit('Cannot download to %s; Its not a directory' %
self.args.path)
# Arguments passed to etl.py are also parsed and available as
# self.etl_args. Here we use them to figure out the requested course's
# namespace.
namespace = etl_lib.get_context(
self.etl_args.course_url_prefix).get_namespace_name()
file_dict = dict()
# Because our models are namespaced, we need to change to the requested
# course's namespace before doing datastore reads or we won't find its
# data. Get the current namespace so we can change back when we're done.
old_namespace = namespace_manager.get_namespace()
try:
namespace_manager.set_namespace(namespace)
# For this example, we'll only process the first 1000 results. Can
# do a keys_only query because the student's email is key.name().
for sub in iter_all(student_work.Submission.all()):
print sub.key().name()
unit_id = sub.unit_id
if unit_id not in file_dict:
f = open(
self.args.path + '/' + namespace + '-' + str(unit_id),
'w')
file_dict[unit_id] = f
data = dict()
data['unit_id'] = unit_id
data['user'] = sub.key().name()
data['code'] = sub.contents
file_dict[unit_id].write(transforms.dumps(data) + '\n')
finally:
# The current namespace is global state. We must change it back to
# the old value no matter what to prevent corrupting datastore
# operations that run after us.
namespace_manager.set_namespace(old_namespace)
def main(self):
# By the time main() is invoked, arguments are parsed and available as
# self.args. If you need more complicated argument validation than
# argparse gives you, do it here:
if not os.path.exists(self.args.path):
sys.exit('%s does not exist' % self.args.path)
# Arguments passed to etl.py are also parsed and available as
# self.etl_args. Here we use them to figure out the requested course's
# context.
context = etl_lib.get_context(self.etl_args.course_url_prefix)
# Create the absolute path we'll write to.
remote_path = os.path.join(
appengine_config.BUNDLE_ROOT, self.args.target)
with open(self.args.path) as f:
# Perform the write using the context's filesystem. In a real
# program you'd probably want to do additional work (preventing
# overwrites of existing files, etc.).
context.fs.impl.put(remote_path, f, is_draft=False)
def main(self):
# By the time main() is invoked, arguments are parsed and available as
# self.args. If you need more complicated argument validation than
# argparse gives you, do it here:
if not os.path.exists(self.args.path):
sys.exit('%s does not exist' % self.args.path)
# Arguments passed to etl.py are also parsed and available as
# self.etl_args. Here we use them to figure out the requested course's
# context.
context = etl_lib.get_context(self.etl_args.course_url_prefix)
# Create the absolute path we'll write to.
remote_path = os.path.join(
appengine_config.BUNDLE_ROOT, self.args.target)
with open(self.args.path) as f:
# Perform the write using the context's filesystem. In a real
# program you'd probably want to do additional work (preventing
# overwrites of existing files, etc.).
context.fs.impl.put(remote_path, f, is_draft=False)
def _get_app_context_or_die(cls, course_url_prefix):
app_context = etl_lib.get_context(course_url_prefix)
if not app_context:
_die('Unable to find course with url prefix ' + course_url_prefix)
return app_context
def _get_app_context_or_die(cls, course_url_prefix):
app_context = etl_lib.get_context(course_url_prefix)
if not app_context:
_die('Unable to find course with url prefix ' + course_url_prefix)
return app_context
