def patch(resource, **lookup):
"""Perform a document patch/update. Updates are first validated against
the resource schema. If validation passes, the document is updated and
an OK status update is returned. If validation fails, a set of validation
issues is returned.
:param resource: the name of the resource to which the document belongs.
:param **lookup: document lookup query.
.. versionchanged:: 0.0.7
Support for Rate-Limiting.
.. versionchanged:: 0.0.6
ETag is now computed without the need of an additional db lookup
.. versionchanged:: 0.0.5
Support for 'aplication/json' Content-Type.
.. versionchanged:: 0.0.4
Added the ``requires_auth`` decorator.
.. versionchanged:: 0.0.3
JSON links. Superflous ``response`` container removed.
"""
payload = payload_()
if len(payload) > 1:
# only one update-per-document supported
abort(400)
original = get_document(resource, **lookup)
if not original:
# not found
abort(404)
schema = app.config["DOMAIN"][resource]["schema"]
validator = app.validator(schema, resource)
object_id = original[config.ID_FIELD]
last_modified = None
etag = None
issues = []
key = payload.keys()[0]
value = payload[key]
response_item = {}
try:
updates = parse(value, resource)
validation = validator.validate_update(updates, object_id)
if validation:
# the mongo driver has a different precision than the python
# datetime. since we don't want to reload the document once it has
# been updated, and we still have to provide an updated etag,
# we're going to update the local version of the 'original'
# document, and we will use it for the etag computation.
original.update(updates)
# some datetime precision magic
updates[config.LAST_UPDATED] = original[config.LAST_UPDATED] = datetime.utcnow().replace(microsecond=0)
etag = document_etag(original)
app.data.update(resource, object_id, updates)
response_item[config.ID_FIELD] = object_id
last_modified = response_item[config.LAST_UPDATED] = original[config.LAST_UPDATED]
# metadata
response_item["etag"] = etag
response_item["_links"] = {"self": document_link(resource, object_id)}
else:
issues.extend(validator.errors)
except ValidationError, e:
# TODO should probably log the error and abort 400 instead (when we
# got logging)
issues.append(str(e))
def patch(resource, **lookup):
"""Perform a document patch/update. Updates are first validated against
the resource schema. If validation passes, the document is updated and
an OK status update is returned. If validation fails, a set of validation
issues is returned.
:param resource: the name of the resource to which the document belongs.
:param **lookup: document lookup query.
.. versionchanged:: 0.0.8
Let ``werkzeug.exceptions.InternalServerError`` go through as they have
probably been explicitly raised by the data driver.
.. versionchanged:: 0.0.7
Support for Rate-Limiting.
.. versionchanged:: 0.0.6
ETag is now computed without the need of an additional db lookup
.. versionchanged:: 0.0.5
Support for 'aplication/json' Content-Type.
.. versionchanged:: 0.0.4
Added the ``requires_auth`` decorator.
.. versionchanged:: 0.0.3
JSON links. Superflous ``response`` container removed.
"""
payload = payload_()
if len(payload) > 1:
# only one update-per-document supported
abort(400)
original = get_document(resource, **lookup)
if not original:
# not found
abort(404)
schema = app.config['DOMAIN'][resource]['schema']
validator = app.validator(schema, resource)
object_id = original[config.ID_FIELD]
last_modified = None
etag = None
issues = []
key = payload.keys()[0]
value = payload[key]
response_item = {}
try:
updates = parse(value, resource)
validation = validator.validate_update(updates, object_id)
if validation:
# the mongo driver has a different precision than the python
# datetime. since we don't want to reload the document once it has
# been updated, and we still have to provide an updated etag,
# we're going to update the local version of the 'original'
# document, and we will use it for the etag computation.
original.update(updates)
# some datetime precision magic
updates[config.LAST_UPDATED] = original[config.LAST_UPDATED] = \
datetime.utcnow().replace(microsecond=0)
etag = document_etag(original)
app.data.update(resource, object_id, updates)
response_item[config.ID_FIELD] = object_id
last_modified = response_item[config.LAST_UPDATED] = \
original[config.LAST_UPDATED]
# metadata
response_item['etag'] = etag
response_item['_links'] = {
'self': document_link(resource, object_id)
}
else:
issues.extend(validator.errors)
except ValidationError, e:
# TODO should probably log the error and abort 400 instead (when we
# got logging)
issues.append(str(e))
def patch(resource, **lookup):
"""Perform a document patch/update. Updates are first validated against
the resource schema. If validation passes, the document is updated and
an OK status update is returned. If validation fails, a set of validation
issues is returned.
:param resource: the name of the resource to which the document belongs.
:param **lookup: document lookup query.
.. versionchanged:: 0.0.5
Support for 'aplication/json' Content-Type.
.. versionchanged:: 0.0.4
Added the ``requires_auth`` decorator.
.. versionchanged:: 0.0.3
JSON links. Superflous ``response`` container removed.
"""
payload = payload_()
if len(payload) > 1:
# only one update-per-document supported
abort(400)
original = get_document(resource, **lookup)
if not original:
# not found
abort(404)
schema = app.config['DOMAIN'][resource]['schema']
validator = app.validator(schema, resource)
object_id = original[config.ID_FIELD]
last_modified = None
etag = None
issues = []
key = payload.keys()[0]
value = payload[key]
response_item = {}
try:
updates = parse(value, resource)
validation = validator.validate_update(updates, object_id)
if validation:
updates[config.LAST_UPDATED] = datetime.utcnow()
app.data.update(resource, object_id, updates)
# TODO computing etag without reloading the document
# would be ideal. However, for reasons that need fruther
# investigation, an etag computed on original.update(updates)
# won't provide the same result as the saved document.
# this has probably comething to do with a) the different
# precision between the BSON (milliseconds) python datetime and,
# b), the string representation of the documents (being dicts)
# not matching.
#
# TL;DR: find a way to compute a reliable etag without reloading
updated = app.data.find_one(resource,
**{config.ID_FIELD: object_id})
updated[config.LAST_UPDATED] = \
updated[config.LAST_UPDATED].replace(tzinfo=None)
etag = document_etag(updated)
response_item[config.ID_FIELD] = object_id
last_modified = response_item[config.LAST_UPDATED] = \
updated[config.LAST_UPDATED]
# metadata
response_item['etag'] = etag
response_item['_links'] = {'self': document_link(resource,
object_id)}
else:
issues.extend(validator.errors)
except ValidationError, e:
# TODO should probably log the error and abort 400 instead (when we
# got logging)
issues.append(str(e))