def _find_index_if_arbitrary_filter_node(name: str,
context: IResource) -> SDIndex:
"""
Find the referenced index if `name' refers to an arbitrary catalog index.
Throws an exception otherwise.
If there are no catalogs, `None` is returned to facilitate testing.
"""
catalog = find_catalog(context, 'adhocracy')
if not catalog:
return None
if name in catalog and not name.startswith('private_'):
return catalog[name]
else:
raise_colander_style_error(None, name, 'No such catalog')
def _is_reference_filter(name: str, registry: Registry) -> bool:
"""
Check whether a name refers to a reference node in a sheet.
Raises an error if `name` contains a colon but is not a reference node.
"""
if ':' not in name:
return False
resolve = registry.content.resolve_isheet_field_from_dotted_string
try:
isheet, field, node = resolve(name)
except ValueError:
raise_colander_style_error(None, name, 'No such sheet or field')
if isinstance(node, (Reference, References)):
return True
else:
raise_colander_style_error(None, name, 'Not a reference node')
def _is_reference_filter(name: str, registry: Registry) -> bool:
"""
Check whether a name refers to a reference node in a sheet.
Raises an error if `name` contains a colon but is not a reference node.
"""
if ':' not in name:
return False
resolve = registry.content.resolve_isheet_field_from_dotted_string
try:
isheet, field, node = resolve(name)
except ValueError:
raise_colander_style_error(None, name, 'No such sheet or field')
if isinstance(node, (Reference, References)):
return True
else:
raise_colander_style_error(None, name, 'Not a reference node')
def _raise_mime_type_error(metadata_sheet: IAssetMetadata, msg: str):
raise_colander_style_error(metadata_sheet.meta.isheet,
'mime_type',
msg)
def _raise_mime_type_error(metadata_sheet: IAssetMetadata, msg: str):
raise_colander_style_error(metadata_sheet.meta.isheet, 'mime_type', msg)
