from collections import namedtuple
from typing import List, NamedTuple, Optional, Tuple, Union
from pybliometrics.scopus.superclasses import Search
from pybliometrics.scopus.utils import check_integrity, check_parameter_value,\
check_field_consistency, listify, make_search_summary
[docs]
class AuthorSearch(Search):
@property
def authors(self) -> Optional[List[NamedTuple]]:
"""A list of namedtuples storing author information,
where each namedtuple corresponds to one author.
The information in each namedtuple is `(eid orcid surname initials givenname
documents affiliation affiliation_id city country areas)`.
All entries are `str` or `None`. Areas combines abbreviated subject
areas followed by the number of documents in this subject.
Raises
------
ValueError
If the elements provided in `integrity_fields` do not match the
actual field names (listed above).
"""
# Initiate namedtuple with ordered list of fields
fields = 'eid orcid surname initials givenname affiliation documents '\
'affiliation_id city country areas'
auth = namedtuple('Author', fields)
check_field_consistency(self._integrity, fields)
# Parse elements one-by-one
out = []
for item in self._json:
name = item.get('preferred-name', {})
aff = item.get('affiliation-current', {})
fields = item.get('subject-area',
[{'@abbrev': '', '@frequency': ''}])
areas = [f"{d.get('@abbrev', '')} ({d.get('@frequency', '')})"
for d in listify(fields)]
new = auth(eid=item.get('eid'),
orcid=item.get('orcid'),
initials=name.get('initials'),
surname=name.get('surname'),
areas="; ".join(areas),
givenname=name.get('given-name'),
documents=int(item['document-count']),
affiliation=aff.get('affiliation-name'),
affiliation_id=aff.get('affiliation-id'),
city=aff.get('affiliation-city'),
country=aff.get('affiliation-country'))
out.append(new)
# Finalize
check_integrity(out, self._integrity, self._action)
return out or None
def __init__(self,
query: str,
refresh: Union[bool, int] = False,
verbose: bool = False,
download: bool = True,
integrity_fields: Union[List[str], Tuple[str, ...]] = None,
integrity_action: str = "raise",
count: int = 200,
**kwds: str
) -> None:
"""Interaction with the Author Search API.
:param query: A string of the query. For allowed fields and values see
https://dev.elsevier.com/sc_author_search_tips.html.
:param refresh: Whether to refresh the cached file if it exists or not.
If `int` is passed, cached file will be refreshed if the
number of days since last modification exceeds that value.
:param download: Whether to download results (if they have not been
cached).
:param verbose: Whether to print a download progress bar.
:param integrity_fields: Names of fields whose completeness should
be checked. `ScopusSearch` will perform the
action specified in `integrity_action` if
elements in these fields are missing. This
helps avoiding idiosynchratically missing
elements that should always be present
(e.g., EID or source ID).
:param integrity_action: What to do in case integrity of provided fields
cannot be verified. Possible actions:
- `"raise"`: Raise an `AttributeError`
- `"warn"`: Raise a `UserWarning`
:param count: (deprecated) The number of entries to be displayed at
once. A smaller number means more queries with each
query having fewer results.
:param kwds: Keywords passed on as query parameters. Must contain
fields and values mentioned in the API specification at
https://dev.elsevier.com/documentation/AuthorSearchAPI.wadl.
Raises
------
ScopusQueryError
If the number of search results exceeds 5000, which is the API's
maximum number of results returned. The error prevents the
download attempt and avoids making use of your API key.
ValueError
If any of the parameters `integrity_action` or `refresh` is not
one of the allowed values.
Notes
-----
The directory for cached results is `{path}/STANDARD/{fname}`,
where `path` is specified in your configuration file, and `fname` is
the md5-hashed version of `query`.
"""
# Checks
allowed = ("warn", "raise")
check_parameter_value(integrity_action, allowed, "integrity_action")
if count != 200:
msg = "Parameter `count` is deprecated and will be removed in a "\
"future release. There will be no substitute."
warn(msg, FutureWarning)
# Query
self._action = integrity_action
self._integrity = integrity_fields or []
self._query = query
self._refresh = refresh
self._view = "STANDARD"
Search.__init__(self, query=query, api='AuthorSearch', count=count,
download=download, verbose=verbose, **kwds)
def __str__(self):
"""Print a summary string."""
names = [f'{n["preferred-name"].get("surname", "?")}, '
f'{n["preferred-name"].get("given-name", "?")}; '
f'{n["dc:identifier"]} ({int(n["document-count"]):,} document(s))'
for n in self._json]
return make_search_summary(self, "author", names)
