def should_create_new_export(xform, export_type, options, request=None):
"""
Function that determines whether to create a new export.
param: xform
param: export_type
param: options: additional parameters required for the lookup.
remove_group_name: boolean flag
group_delimiter: "/" or "." with "/" as the default
split_select_multiples: boolean flag
binary_select_multiples: boolean flag
index_tag: ('[', ']') or ('_', '_')
params: request: Get params are used to determine if new export is required
"""
split_select_multiples = options.get('split_select_multiples', True)
if getattr(settings, 'SHOULD_ALWAYS_CREATE_NEW_EXPORT', False):
return True
if (request and (frozenset(list(request.GET)) &
frozenset(['start', 'end', 'data_id']))) or\
not split_select_multiples:
return True
export_options_kwargs = get_export_options_query_kwargs(options)
export_query = Export.objects.filter(xform=xform,
export_type=export_type,
**export_options_kwargs)
if options.get(EXPORT_QUERY_KEY) is None:
export_query = export_query.exclude(options__has_key=EXPORT_QUERY_KEY)
if export_query.count() == 0 or\
Export.exports_outdated(xform, export_type, options=options):
return True
return False
def newest_export_for(xform, export_type, options):
"""
Retrieve the latest export given the following arguments:
param: xform
param: export_type
param: options: additional parameters required for the lookup.
remove_group_name: boolean flag
group_delimiter: "/" or "." with "/" as the default
split_select_multiples: boolean flag
binary_select_multiples: boolean flag
"""
export_options_kwargs = get_export_options_query_kwargs(options)
export_query = Export.objects.filter(xform=xform,
export_type=export_type,
**export_options_kwargs)
return export_query.latest('created_on')
def should_create_new_export(xform,
export_type,
options,
request=None):
"""
Function that determines whether to create a new export.
param: xform
param: export_type
param: options: additional parameters required for the lookup.
remove_group_name: boolean flag
group_delimiter: "/" or "." with "/" as the default
split_select_multiples: boolean flag
binary_select_multiples: boolean flag
index_tag: ('[', ']') or ('_', '_')
params: request: Get params are used to determine if new export is required
"""
split_select_multiples = options.get('split_select_multiples', True)
if getattr(settings, 'SHOULD_ALWAYS_CREATE_NEW_EXPORT', False):
return True
if (request and (frozenset(list(request.GET)) &
frozenset(['start', 'end', 'data_id']))) or\
not split_select_multiples:
return True
export_options_kwargs = get_export_options_query_kwargs(options)
export_query = Export.objects.filter(
xform=xform,
export_type=export_type,
**export_options_kwargs
)
if options.get(EXPORT_QUERY_KEY) is None:
export_query = export_query.exclude(options__has_key=EXPORT_QUERY_KEY)
if export_query.count() == 0 or\
Export.exports_outdated(xform, export_type, options=options):
return True
return False
def check_pending_export(xform,
export_type,
options,
minutes=getattr(settings, 'PENDING_EXPORT_TIME', 5)):
"""
Check for pending export done within a specific period of time and
returns the export
:param xform:
:param export_type:
:param options:
:param minutes
:return:
"""
created_time = timezone.now() - timedelta(minutes=minutes)
export_options_kwargs = get_export_options_query_kwargs(options)
export = Export.objects.filter(xform=xform,
export_type=export_type,
internal_status=Export.PENDING,
created_on__gt=created_time,
**export_options_kwargs).last()
return export
def newest_export_for(xform, export_type, options):
"""
Retrieve the latest export given the following arguments:
param: xform
param: export_type
param: options: additional parameters required for the lookup.
remove_group_name: boolean flag
group_delimiter: "/" or "." with "/" as the default
split_select_multiples: boolean flag
binary_select_multiples: boolean flag
index_tag: ('[', ']') or ('_', '_')
"""
export_options_kwargs = get_export_options_query_kwargs(options)
export_query = Export.objects.filter(
xform=xform,
export_type=export_type,
**export_options_kwargs
)
return export_query.latest('created_on')
def check_pending_export(xform, export_type, options,
minutes=getattr(settings, 'PENDING_EXPORT_TIME', 5)):
"""
Check for pending export done within a specific period of time and
returns the export
:param xform:
:param export_type:
:param options:
:param minutes
:return:
"""
created_time = timezone.now() - timedelta(minutes=minutes)
export_options_kwargs = get_export_options_query_kwargs(options)
export = Export.objects.filter(
xform=xform,
export_type=export_type,
internal_status=Export.PENDING,
created_on__gt=created_time,
**export_options_kwargs
).last()
return export
