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misp-galaxy/galaxy/lib/python3.12/site-packages/redis/commands/search/commands.py
th3r3d 941a6b3e77 Linux commit
2024-08-20 18:46:04 +02:00

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import itertools
import time
from typing import Dict, List, Optional, Union
from redis.client import NEVER_DECODE, Pipeline
from redis.utils import deprecated_function
from ..helpers import get_protocol_version, parse_to_dict
from ._util import to_string
from .aggregation import AggregateRequest, AggregateResult, Cursor
from .document import Document
from .field import Field
from .indexDefinition import IndexDefinition
from .query import Query
from .result import Result
from .suggestion import SuggestionParser
NUMERIC = "NUMERIC"
CREATE_CMD = "FT.CREATE"
ALTER_CMD = "FT.ALTER"
SEARCH_CMD = "FT.SEARCH"
ADD_CMD = "FT.ADD"
ADDHASH_CMD = "FT.ADDHASH"
DROP_CMD = "FT.DROP"
DROPINDEX_CMD = "FT.DROPINDEX"
EXPLAIN_CMD = "FT.EXPLAIN"
EXPLAINCLI_CMD = "FT.EXPLAINCLI"
DEL_CMD = "FT.DEL"
AGGREGATE_CMD = "FT.AGGREGATE"
PROFILE_CMD = "FT.PROFILE"
CURSOR_CMD = "FT.CURSOR"
SPELLCHECK_CMD = "FT.SPELLCHECK"
DICT_ADD_CMD = "FT.DICTADD"
DICT_DEL_CMD = "FT.DICTDEL"
DICT_DUMP_CMD = "FT.DICTDUMP"
GET_CMD = "FT.GET"
MGET_CMD = "FT.MGET"
CONFIG_CMD = "FT.CONFIG"
TAGVALS_CMD = "FT.TAGVALS"
ALIAS_ADD_CMD = "FT.ALIASADD"
ALIAS_UPDATE_CMD = "FT.ALIASUPDATE"
ALIAS_DEL_CMD = "FT.ALIASDEL"
INFO_CMD = "FT.INFO"
SUGADD_COMMAND = "FT.SUGADD"
SUGDEL_COMMAND = "FT.SUGDEL"
SUGLEN_COMMAND = "FT.SUGLEN"
SUGGET_COMMAND = "FT.SUGGET"
SYNUPDATE_CMD = "FT.SYNUPDATE"
SYNDUMP_CMD = "FT.SYNDUMP"
NOOFFSETS = "NOOFFSETS"
NOFIELDS = "NOFIELDS"
NOHL = "NOHL"
NOFREQS = "NOFREQS"
MAXTEXTFIELDS = "MAXTEXTFIELDS"
TEMPORARY = "TEMPORARY"
STOPWORDS = "STOPWORDS"
SKIPINITIALSCAN = "SKIPINITIALSCAN"
WITHSCORES = "WITHSCORES"
FUZZY = "FUZZY"
WITHPAYLOADS = "WITHPAYLOADS"
class SearchCommands:
"""Search commands."""
def _parse_results(self, cmd, res, **kwargs):
if get_protocol_version(self.client) in ["3", 3]:
return res
else:
return self._RESP2_MODULE_CALLBACKS[cmd](res, **kwargs)
def _parse_info(self, res, **kwargs):
it = map(to_string, res)
return dict(zip(it, it))
def _parse_search(self, res, **kwargs):
return Result(
res,
not kwargs["query"]._no_content,
duration=kwargs["duration"],
has_payload=kwargs["query"]._with_payloads,
with_scores=kwargs["query"]._with_scores,
field_encodings=kwargs["query"]._return_fields_decode_as,
)
def _parse_aggregate(self, res, **kwargs):
return self._get_aggregate_result(res, kwargs["query"], kwargs["has_cursor"])
def _parse_profile(self, res, **kwargs):
query = kwargs["query"]
if isinstance(query, AggregateRequest):
result = self._get_aggregate_result(res[0], query, query._cursor)
else:
result = Result(
res[0],
not query._no_content,
duration=kwargs["duration"],
has_payload=query._with_payloads,
with_scores=query._with_scores,
)
return result, parse_to_dict(res[1])
def _parse_spellcheck(self, res, **kwargs):
corrections = {}
if res == 0:
return corrections
for _correction in res:
if isinstance(_correction, int) and _correction == 0:
continue
if len(_correction) != 3:
continue
if not _correction[2]:
continue
if not _correction[2][0]:
continue
# For spellcheck output
# 1) 1) "TERM"
# 2) "{term1}"
# 3) 1) 1) "{score1}"
# 2) "{suggestion1}"
# 2) 1) "{score2}"
# 2) "{suggestion2}"
#
# Following dictionary will be made
# corrections = {
# '{term1}': [
# {'score': '{score1}', 'suggestion': '{suggestion1}'},
# {'score': '{score2}', 'suggestion': '{suggestion2}'}
# ]
# }
corrections[_correction[1]] = [
{"score": _item[0], "suggestion": _item[1]} for _item in _correction[2]
]
return corrections
def _parse_config_get(self, res, **kwargs):
return {kvs[0]: kvs[1] for kvs in res} if res else {}
def _parse_syndump(self, res, **kwargs):
return {res[i]: res[i + 1] for i in range(0, len(res), 2)}
def batch_indexer(self, chunk_size=100):
"""
Create a new batch indexer from the client with a given chunk size
"""
return self.BatchIndexer(self, chunk_size=chunk_size)
def create_index(
self,
fields: List[Field],
no_term_offsets: bool = False,
no_field_flags: bool = False,
stopwords: Optional[List[str]] = None,
definition: Optional[IndexDefinition] = None,
max_text_fields=False,
temporary=None,
no_highlight: bool = False,
no_term_frequencies: bool = False,
skip_initial_scan: bool = False,
):
"""
Creates the search index. The index must not already exist.
For more information, see https://redis.io/commands/ft.create/
Args:
fields: A list of Field objects.
no_term_offsets: If `true`, term offsets will not be saved in the index.
no_field_flags: If true, field flags that allow searching in specific fields
will not be saved.
stopwords: If provided, the index will be created with this custom stopword
list. The list can be empty.
definition: If provided, the index will be created with this custom index
definition.
max_text_fields: If true, indexes will be encoded as if there were more than
32 text fields, allowing for additional fields beyond 32.
temporary: Creates a lightweight temporary index which will expire after the
specified period of inactivity. The internal idle timer is reset
whenever the index is searched or added to.
no_highlight: If true, disables highlighting support. Also implied by
`no_term_offsets`.
no_term_frequencies: If true, term frequencies will not be saved in the
index.
skip_initial_scan: If true, the initial scan and indexing will be skipped.
"""
args = [CREATE_CMD, self.index_name]
if definition is not None:
args += definition.args
if max_text_fields:
args.append(MAXTEXTFIELDS)
if temporary is not None and isinstance(temporary, int):
args.append(TEMPORARY)
args.append(temporary)
if no_term_offsets:
args.append(NOOFFSETS)
if no_highlight:
args.append(NOHL)
if no_field_flags:
args.append(NOFIELDS)
if no_term_frequencies:
args.append(NOFREQS)
if skip_initial_scan:
args.append(SKIPINITIALSCAN)
if stopwords is not None and isinstance(stopwords, (list, tuple, set)):
args += [STOPWORDS, len(stopwords)]
if len(stopwords) > 0:
args += list(stopwords)
args.append("SCHEMA")
try:
args += list(itertools.chain(*(f.redis_args() for f in fields)))
except TypeError:
args += fields.redis_args()
return self.execute_command(*args)
def alter_schema_add(self, fields: List[str]):
"""
Alter the existing search index by adding new fields. The index
must already exist.
### Parameters:
- **fields**: a list of Field objects to add for the index
For more information see `FT.ALTER <https://redis.io/commands/ft.alter>`_.
""" # noqa
args = [ALTER_CMD, self.index_name, "SCHEMA", "ADD"]
try:
args += list(itertools.chain(*(f.redis_args() for f in fields)))
except TypeError:
args += fields.redis_args()
return self.execute_command(*args)
def dropindex(self, delete_documents: bool = False):
"""
Drop the index if it exists.
Replaced `drop_index` in RediSearch 2.0.
Default behavior was changed to not delete the indexed documents.
### Parameters:
- **delete_documents**: If `True`, all documents will be deleted.
For more information see `FT.DROPINDEX <https://redis.io/commands/ft.dropindex>`_.
""" # noqa
delete_str = "DD" if delete_documents else ""
return self.execute_command(DROPINDEX_CMD, self.index_name, delete_str)
def _add_document(
self,
doc_id,
conn=None,
nosave=False,
score=1.0,
payload=None,
replace=False,
partial=False,
language=None,
no_create=False,
**fields,
):
"""
Internal add_document used for both batch and single doc indexing
"""
if partial or no_create:
replace = True
args = [ADD_CMD, self.index_name, doc_id, score]
if nosave:
args.append("NOSAVE")
if payload is not None:
args.append("PAYLOAD")
args.append(payload)
if replace:
args.append("REPLACE")
if partial:
args.append("PARTIAL")
if no_create:
args.append("NOCREATE")
if language:
args += ["LANGUAGE", language]
args.append("FIELDS")
args += list(itertools.chain(*fields.items()))
if conn is not None:
return conn.execute_command(*args)
return self.execute_command(*args)
def _add_document_hash(
self, doc_id, conn=None, score=1.0, language=None, replace=False
):
"""
Internal add_document_hash used for both batch and single doc indexing
"""
args = [ADDHASH_CMD, self.index_name, doc_id, score]
if replace:
args.append("REPLACE")
if language:
args += ["LANGUAGE", language]
if conn is not None:
return conn.execute_command(*args)
return self.execute_command(*args)
@deprecated_function(
version="2.0.0", reason="deprecated since redisearch 2.0, call hset instead"
)
def add_document(
self,
doc_id: str,
nosave: bool = False,
score: float = 1.0,
payload: bool = None,
replace: bool = False,
partial: bool = False,
language: Optional[str] = None,
no_create: str = False,
**fields: List[str],
):
"""
Add a single document to the index.
### Parameters
- **doc_id**: the id of the saved document.
- **nosave**: if set to true, we just index the document, and don't
save a copy of it. This means that searches will just
return ids.
- **score**: the document ranking, between 0.0 and 1.0
- **payload**: optional inner-index payload we can save for fast
i access in scoring functions
- **replace**: if True, and the document already is in the index,
we perform an update and reindex the document
- **partial**: if True, the fields specified will be added to the
existing document.
This has the added benefit that any fields specified
with `no_index`
will not be reindexed again. Implies `replace`
- **language**: Specify the language used for document tokenization.
- **no_create**: if True, the document is only updated and reindexed
if it already exists.
If the document does not exist, an error will be
returned. Implies `replace`
- **fields** kwargs dictionary of the document fields to be saved
and/or indexed.
NOTE: Geo points shoule be encoded as strings of "lon,lat"
""" # noqa
return self._add_document(
doc_id,
conn=None,
nosave=nosave,
score=score,
payload=payload,
replace=replace,
partial=partial,
language=language,
no_create=no_create,
**fields,
)
@deprecated_function(
version="2.0.0", reason="deprecated since redisearch 2.0, call hset instead"
)
def add_document_hash(self, doc_id, score=1.0, language=None, replace=False):
"""
Add a hash document to the index.
### Parameters
- **doc_id**: the document's id. This has to be an existing HASH key
in Redis that will hold the fields the index needs.
- **score**: the document ranking, between 0.0 and 1.0
- **replace**: if True, and the document already is in the index, we
perform an update and reindex the document
- **language**: Specify the language used for document tokenization.
""" # noqa
return self._add_document_hash(
doc_id, conn=None, score=score, language=language, replace=replace
)
def delete_document(self, doc_id, conn=None, delete_actual_document=False):
"""
Delete a document from index
Returns 1 if the document was deleted, 0 if not
### Parameters
- **delete_actual_document**: if set to True, RediSearch also delete
the actual document if it is in the index
""" # noqa
args = [DEL_CMD, self.index_name, doc_id]
if delete_actual_document:
args.append("DD")
if conn is not None:
return conn.execute_command(*args)
return self.execute_command(*args)
def load_document(self, id):
"""
Load a single document by id
"""
fields = self.client.hgetall(id)
f2 = {to_string(k): to_string(v) for k, v in fields.items()}
fields = f2
try:
del fields["id"]
except KeyError:
pass
return Document(id=id, **fields)
def get(self, *ids):
"""
Returns the full contents of multiple documents.
### Parameters
- **ids**: the ids of the saved documents.
"""
return self.execute_command(MGET_CMD, self.index_name, *ids)
def info(self):
"""
Get info an stats about the the current index, including the number of
documents, memory consumption, etc
For more information see `FT.INFO <https://redis.io/commands/ft.info>`_.
"""
res = self.execute_command(INFO_CMD, self.index_name)
return self._parse_results(INFO_CMD, res)
def get_params_args(
self, query_params: Union[Dict[str, Union[str, int, float, bytes]], None]
):
if query_params is None:
return []
args = []
if len(query_params) > 0:
args.append("params")
args.append(len(query_params) * 2)
for key, value in query_params.items():
args.append(key)
args.append(value)
return args
def _mk_query_args(
self, query, query_params: Union[Dict[str, Union[str, int, float, bytes]], None]
):
args = [self.index_name]
if isinstance(query, str):
# convert the query from a text to a query object
query = Query(query)
if not isinstance(query, Query):
raise ValueError(f"Bad query type {type(query)}")
args += query.get_args()
args += self.get_params_args(query_params)
return args, query
def search(
self,
query: Union[str, Query],
query_params: Union[Dict[str, Union[str, int, float, bytes]], None] = None,
):
"""
Search the index for a given query, and return a result of documents
### Parameters
- **query**: the search query. Either a text for simple queries with
default parameters, or a Query object for complex queries.
See RediSearch's documentation on query format
For more information see `FT.SEARCH <https://redis.io/commands/ft.search>`_.
""" # noqa
args, query = self._mk_query_args(query, query_params=query_params)
st = time.time()
options = {}
if get_protocol_version(self.client) not in ["3", 3]:
options[NEVER_DECODE] = True
res = self.execute_command(SEARCH_CMD, *args, **options)
if isinstance(res, Pipeline):
return res
return self._parse_results(
SEARCH_CMD, res, query=query, duration=(time.time() - st) * 1000.0
)
def explain(
self,
query: Union[str, Query],
query_params: Dict[str, Union[str, int, float]] = None,
):
"""Returns the execution plan for a complex query.
For more information see `FT.EXPLAIN <https://redis.io/commands/ft.explain>`_.
""" # noqa
args, query_text = self._mk_query_args(query, query_params=query_params)
return self.execute_command(EXPLAIN_CMD, *args)
def explain_cli(self, query: Union[str, Query]): # noqa
raise NotImplementedError("EXPLAINCLI will not be implemented.")
def aggregate(
self,
query: Union[str, Query],
query_params: Dict[str, Union[str, int, float]] = None,
):
"""
Issue an aggregation query.
### Parameters
**query**: This can be either an `AggregateRequest`, or a `Cursor`
An `AggregateResult` object is returned. You can access the rows from
its `rows` property, which will always yield the rows of the result.
For more information see `FT.AGGREGATE <https://redis.io/commands/ft.aggregate>`_.
""" # noqa
if isinstance(query, AggregateRequest):
has_cursor = bool(query._cursor)
cmd = [AGGREGATE_CMD, self.index_name] + query.build_args()
elif isinstance(query, Cursor):
has_cursor = True
cmd = [CURSOR_CMD, "READ", self.index_name] + query.build_args()
else:
raise ValueError("Bad query", query)
cmd += self.get_params_args(query_params)
raw = self.execute_command(*cmd)
return self._parse_results(
AGGREGATE_CMD, raw, query=query, has_cursor=has_cursor
)
def _get_aggregate_result(
self, raw: List, query: Union[str, Query, AggregateRequest], has_cursor: bool
):
if has_cursor:
if isinstance(query, Cursor):
query.cid = raw[1]
cursor = query
else:
cursor = Cursor(raw[1])
raw = raw[0]
else:
cursor = None
if isinstance(query, AggregateRequest) and query._with_schema:
schema = raw[0]
rows = raw[2:]
else:
schema = None
rows = raw[1:]
return AggregateResult(rows, cursor, schema)
def profile(
self,
query: Union[str, Query, AggregateRequest],
limited: bool = False,
query_params: Optional[Dict[str, Union[str, int, float]]] = None,
):
"""
Performs a search or aggregate command and collects performance
information.
### Parameters
**query**: This can be either an `AggregateRequest`, `Query` or string.
**limited**: If set to True, removes details of reader iterator.
**query_params**: Define one or more value parameters.
Each parameter has a name and a value.
"""
st = time.time()
cmd = [PROFILE_CMD, self.index_name, ""]
if limited:
cmd.append("LIMITED")
cmd.append("QUERY")
if isinstance(query, AggregateRequest):
cmd[2] = "AGGREGATE"
cmd += query.build_args()
elif isinstance(query, Query):
cmd[2] = "SEARCH"
cmd += query.get_args()
cmd += self.get_params_args(query_params)
else:
raise ValueError("Must provide AggregateRequest object or Query object.")
res = self.execute_command(*cmd)
return self._parse_results(
PROFILE_CMD, res, query=query, duration=(time.time() - st) * 1000.0
)
def spellcheck(self, query, distance=None, include=None, exclude=None):
"""
Issue a spellcheck query
### Parameters
**query**: search query.
**distance***: the maximal Levenshtein distance for spelling
suggestions (default: 1, max: 4).
**include**: specifies an inclusion custom dictionary.
**exclude**: specifies an exclusion custom dictionary.
For more information see `FT.SPELLCHECK <https://redis.io/commands/ft.spellcheck>`_.
""" # noqa
cmd = [SPELLCHECK_CMD, self.index_name, query]
if distance:
cmd.extend(["DISTANCE", distance])
if include:
cmd.extend(["TERMS", "INCLUDE", include])
if exclude:
cmd.extend(["TERMS", "EXCLUDE", exclude])
res = self.execute_command(*cmd)
return self._parse_results(SPELLCHECK_CMD, res)
def dict_add(self, name: str, *terms: List[str]):
"""Adds terms to a dictionary.
### Parameters
- **name**: Dictionary name.
- **terms**: List of items for adding to the dictionary.
For more information see `FT.DICTADD <https://redis.io/commands/ft.dictadd>`_.
""" # noqa
cmd = [DICT_ADD_CMD, name]
cmd.extend(terms)
return self.execute_command(*cmd)
def dict_del(self, name: str, *terms: List[str]):
"""Deletes terms from a dictionary.
### Parameters
- **name**: Dictionary name.
- **terms**: List of items for removing from the dictionary.
For more information see `FT.DICTDEL <https://redis.io/commands/ft.dictdel>`_.
""" # noqa
cmd = [DICT_DEL_CMD, name]
cmd.extend(terms)
return self.execute_command(*cmd)
def dict_dump(self, name: str):
"""Dumps all terms in the given dictionary.
### Parameters
- **name**: Dictionary name.
For more information see `FT.DICTDUMP <https://redis.io/commands/ft.dictdump>`_.
""" # noqa
cmd = [DICT_DUMP_CMD, name]
return self.execute_command(*cmd)
def config_set(self, option: str, value: str) -> bool:
"""Set runtime configuration option.
### Parameters
- **option**: the name of the configuration option.
- **value**: a value for the configuration option.
For more information see `FT.CONFIG SET <https://redis.io/commands/ft.config-set>`_.
""" # noqa
cmd = [CONFIG_CMD, "SET", option, value]
raw = self.execute_command(*cmd)
return raw == "OK"
def config_get(self, option: str) -> str:
"""Get runtime configuration option value.
### Parameters
- **option**: the name of the configuration option.
For more information see `FT.CONFIG GET <https://redis.io/commands/ft.config-get>`_.
""" # noqa
cmd = [CONFIG_CMD, "GET", option]
res = self.execute_command(*cmd)
return self._parse_results(CONFIG_CMD, res)
def tagvals(self, tagfield: str):
"""
Return a list of all possible tag values
### Parameters
- **tagfield**: Tag field name
For more information see `FT.TAGVALS <https://redis.io/commands/ft.tagvals>`_.
""" # noqa
return self.execute_command(TAGVALS_CMD, self.index_name, tagfield)
def aliasadd(self, alias: str):
"""
Alias a search index - will fail if alias already exists
### Parameters
- **alias**: Name of the alias to create
For more information see `FT.ALIASADD <https://redis.io/commands/ft.aliasadd>`_.
""" # noqa
return self.execute_command(ALIAS_ADD_CMD, alias, self.index_name)
def aliasupdate(self, alias: str):
"""
Updates an alias - will fail if alias does not already exist
### Parameters
- **alias**: Name of the alias to create
For more information see `FT.ALIASUPDATE <https://redis.io/commands/ft.aliasupdate>`_.
""" # noqa
return self.execute_command(ALIAS_UPDATE_CMD, alias, self.index_name)
def aliasdel(self, alias: str):
"""
Removes an alias to a search index
### Parameters
- **alias**: Name of the alias to delete
For more information see `FT.ALIASDEL <https://redis.io/commands/ft.aliasdel>`_.
""" # noqa
return self.execute_command(ALIAS_DEL_CMD, alias)
def sugadd(self, key, *suggestions, **kwargs):
"""
Add suggestion terms to the AutoCompleter engine. Each suggestion has
a score and string.
If kwargs["increment"] is true and the terms are already in the
server's dictionary, we increment their scores.
For more information see `FT.SUGADD <https://redis.io/commands/ft.sugadd/>`_.
""" # noqa
# If Transaction is not False it will MULTI/EXEC which will error
pipe = self.pipeline(transaction=False)
for sug in suggestions:
args = [SUGADD_COMMAND, key, sug.string, sug.score]
if kwargs.get("increment"):
args.append("INCR")
if sug.payload:
args.append("PAYLOAD")
args.append(sug.payload)
pipe.execute_command(*args)
return pipe.execute()[-1]
def suglen(self, key: str) -> int:
"""
Return the number of entries in the AutoCompleter index.
For more information see `FT.SUGLEN <https://redis.io/commands/ft.suglen>`_.
""" # noqa
return self.execute_command(SUGLEN_COMMAND, key)
def sugdel(self, key: str, string: str) -> int:
"""
Delete a string from the AutoCompleter index.
Returns 1 if the string was found and deleted, 0 otherwise.
For more information see `FT.SUGDEL <https://redis.io/commands/ft.sugdel>`_.
""" # noqa
return self.execute_command(SUGDEL_COMMAND, key, string)
def sugget(
self,
key: str,
prefix: str,
fuzzy: bool = False,
num: int = 10,
with_scores: bool = False,
with_payloads: bool = False,
) -> List[SuggestionParser]:
"""
Get a list of suggestions from the AutoCompleter, for a given prefix.
Parameters:
prefix : str
The prefix we are searching. **Must be valid ascii or utf-8**
fuzzy : bool
If set to true, the prefix search is done in fuzzy mode.
**NOTE**: Running fuzzy searches on short (<3 letters) prefixes
can be very
slow, and even scan the entire index.
with_scores : bool
If set to true, we also return the (refactored) score of
each suggestion.
This is normally not needed, and is NOT the original score
inserted into the index.
with_payloads : bool
Return suggestion payloads
num : int
The maximum number of results we return. Note that we might
return less. The algorithm trims irrelevant suggestions.
Returns:
list:
A list of Suggestion objects. If with_scores was False, the
score of all suggestions is 1.
For more information see `FT.SUGGET <https://redis.io/commands/ft.sugget>`_.
""" # noqa
args = [SUGGET_COMMAND, key, prefix, "MAX", num]
if fuzzy:
args.append(FUZZY)
if with_scores:
args.append(WITHSCORES)
if with_payloads:
args.append(WITHPAYLOADS)
res = self.execute_command(*args)
results = []
if not res:
return results
parser = SuggestionParser(with_scores, with_payloads, res)
return [s for s in parser]
def synupdate(self, groupid: str, skipinitial: bool = False, *terms: List[str]):
"""
Updates a synonym group.
The command is used to create or update a synonym group with
additional terms.
Only documents which were indexed after the update will be affected.
Parameters:
groupid :
Synonym group id.
skipinitial : bool
If set to true, we do not scan and index.
terms :
The terms.
For more information see `FT.SYNUPDATE <https://redis.io/commands/ft.synupdate>`_.
""" # noqa
cmd = [SYNUPDATE_CMD, self.index_name, groupid]
if skipinitial:
cmd.extend(["SKIPINITIALSCAN"])
cmd.extend(terms)
return self.execute_command(*cmd)
def syndump(self):
"""
Dumps the contents of a synonym group.
The command is used to dump the synonyms data structure.
Returns a list of synonym terms and their synonym group ids.
For more information see `FT.SYNDUMP <https://redis.io/commands/ft.syndump>`_.
""" # noqa
res = self.execute_command(SYNDUMP_CMD, self.index_name)
return self._parse_results(SYNDUMP_CMD, res)
class AsyncSearchCommands(SearchCommands):
async def info(self):
"""
Get info an stats about the the current index, including the number of
documents, memory consumption, etc
For more information see `FT.INFO <https://redis.io/commands/ft.info>`_.
"""
res = await self.execute_command(INFO_CMD, self.index_name)
return self._parse_results(INFO_CMD, res)
async def search(
self,
query: Union[str, Query],
query_params: Dict[str, Union[str, int, float]] = None,
):
"""
Search the index for a given query, and return a result of documents
### Parameters
- **query**: the search query. Either a text for simple queries with
default parameters, or a Query object for complex queries.
See RediSearch's documentation on query format
For more information see `FT.SEARCH <https://redis.io/commands/ft.search>`_.
""" # noqa
args, query = self._mk_query_args(query, query_params=query_params)
st = time.time()
options = {}
if get_protocol_version(self.client) not in ["3", 3]:
options[NEVER_DECODE] = True
res = await self.execute_command(SEARCH_CMD, *args, **options)
if isinstance(res, Pipeline):
return res
return self._parse_results(
SEARCH_CMD, res, query=query, duration=(time.time() - st) * 1000.0
)
async def aggregate(
self,
query: Union[str, Query],
query_params: Dict[str, Union[str, int, float]] = None,
):
"""
Issue an aggregation query.
### Parameters
**query**: This can be either an `AggregateRequest`, or a `Cursor`
An `AggregateResult` object is returned. You can access the rows from
its `rows` property, which will always yield the rows of the result.
For more information see `FT.AGGREGATE <https://redis.io/commands/ft.aggregate>`_.
""" # noqa
if isinstance(query, AggregateRequest):
has_cursor = bool(query._cursor)
cmd = [AGGREGATE_CMD, self.index_name] + query.build_args()
elif isinstance(query, Cursor):
has_cursor = True
cmd = [CURSOR_CMD, "READ", self.index_name] + query.build_args()
else:
raise ValueError("Bad query", query)
cmd += self.get_params_args(query_params)
raw = await self.execute_command(*cmd)
return self._parse_results(
AGGREGATE_CMD, raw, query=query, has_cursor=has_cursor
)
async def spellcheck(self, query, distance=None, include=None, exclude=None):
"""
Issue a spellcheck query
### Parameters
**query**: search query.
**distance***: the maximal Levenshtein distance for spelling
suggestions (default: 1, max: 4).
**include**: specifies an inclusion custom dictionary.
**exclude**: specifies an exclusion custom dictionary.
For more information see `FT.SPELLCHECK <https://redis.io/commands/ft.spellcheck>`_.
""" # noqa
cmd = [SPELLCHECK_CMD, self.index_name, query]
if distance:
cmd.extend(["DISTANCE", distance])
if include:
cmd.extend(["TERMS", "INCLUDE", include])
if exclude:
cmd.extend(["TERMS", "EXCLUDE", exclude])
res = await self.execute_command(*cmd)
return self._parse_results(SPELLCHECK_CMD, res)
async def config_set(self, option: str, value: str) -> bool:
"""Set runtime configuration option.
### Parameters
- **option**: the name of the configuration option.
- **value**: a value for the configuration option.
For more information see `FT.CONFIG SET <https://redis.io/commands/ft.config-set>`_.
""" # noqa
cmd = [CONFIG_CMD, "SET", option, value]
raw = await self.execute_command(*cmd)
return raw == "OK"
async def config_get(self, option: str) -> str:
"""Get runtime configuration option value.
### Parameters
- **option**: the name of the configuration option.
For more information see `FT.CONFIG GET <https://redis.io/commands/ft.config-get>`_.
""" # noqa
cmd = [CONFIG_CMD, "GET", option]
res = {}
res = await self.execute_command(*cmd)
return self._parse_results(CONFIG_CMD, res)
async def load_document(self, id):
"""
Load a single document by id
"""
fields = await self.client.hgetall(id)
f2 = {to_string(k): to_string(v) for k, v in fields.items()}
fields = f2
try:
del fields["id"]
except KeyError:
pass
return Document(id=id, **fields)
async def sugadd(self, key, *suggestions, **kwargs):
"""
Add suggestion terms to the AutoCompleter engine. Each suggestion has
a score and string.
If kwargs["increment"] is true and the terms are already in the
server's dictionary, we increment their scores.
For more information see `FT.SUGADD <https://redis.io/commands/ft.sugadd>`_.
""" # noqa
# If Transaction is not False it will MULTI/EXEC which will error
pipe = self.pipeline(transaction=False)
for sug in suggestions:
args = [SUGADD_COMMAND, key, sug.string, sug.score]
if kwargs.get("increment"):
args.append("INCR")
if sug.payload:
args.append("PAYLOAD")
args.append(sug.payload)
pipe.execute_command(*args)
return (await pipe.execute())[-1]
async def sugget(
self,
key: str,
prefix: str,
fuzzy: bool = False,
num: int = 10,
with_scores: bool = False,
with_payloads: bool = False,
) -> List[SuggestionParser]:
"""
Get a list of suggestions from the AutoCompleter, for a given prefix.
Parameters:
prefix : str
The prefix we are searching. **Must be valid ascii or utf-8**
fuzzy : bool
If set to true, the prefix search is done in fuzzy mode.
**NOTE**: Running fuzzy searches on short (<3 letters) prefixes
can be very
slow, and even scan the entire index.
with_scores : bool
If set to true, we also return the (refactored) score of
each suggestion.
This is normally not needed, and is NOT the original score
inserted into the index.
with_payloads : bool
Return suggestion payloads
num : int
The maximum number of results we return. Note that we might
return less. The algorithm trims irrelevant suggestions.
Returns:
list:
A list of Suggestion objects. If with_scores was False, the
score of all suggestions is 1.
For more information see `FT.SUGGET <https://redis.io/commands/ft.sugget>`_.
""" # noqa
args = [SUGGET_COMMAND, key, prefix, "MAX", num]
if fuzzy:
args.append(FUZZY)
if with_scores:
args.append(WITHSCORES)
if with_payloads:
args.append(WITHPAYLOADS)
ret = await self.execute_command(*args)
results = []
if not ret:
return results
parser = SuggestionParser(with_scores, with_payloads, ret)
return [s for s in parser]
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