Egor fureunoir Gorbunov
a81f734e23
Fixes: (1) Removed all `# type: ignore` annotations across the codebase; (2) Fixed usage of Django Model methods by eliminating unnecessary `# type: ignore` directives; (3) Adjusted usage of functions like `get()` to align with method expectations, removing incorrect comments; Extra: (1) Deleted `pyrightconfig.json` as part of migration to a stricter type-checked environment; (2) Minor code cleanup, including formatting changes and refactoring import statements in adherence to PEP8 recommendations.
680 lines
22 KiB
Python
680 lines
22 KiB
Python
import re
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from typing import Any, Callable
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from django.conf import settings
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from django.db.models import QuerySet
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from django.http import Http404
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from django.utils.text import slugify
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from django.utils.translation import gettext_lazy as _
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from django_elasticsearch_dsl import fields
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from django_elasticsearch_dsl.registries import registry
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from elasticsearch import NotFoundError
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from elasticsearch.dsl import Q, Search
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from rest_framework.request import Request
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from engine.core.models import Brand, Category, Product
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SMART_FIELDS = [
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"name^6",
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"name.ngram^6",
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"name.phonetic^4",
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"name.translit^5",
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"title^4",
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"title.ngram^5",
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"title.phonetic^3",
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"title.translit^4",
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"description^2",
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"description.ngram^3",
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"description.phonetic^2",
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"description.translit^3",
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"brand_name^4",
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"brand_name.ngram^3",
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"brand_name.auto^4",
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"brand_name.translit^4",
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"category_name^3",
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"category_name.ngram^3",
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"category_name.auto^3",
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"category_name.translit^3",
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"sku^7",
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"sku.ngram^5",
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"sku.auto^6",
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"partnumber^8",
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"partnumber.ngram^6",
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"partnumber.auto^7",
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]
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functions = [
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{
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"filter": Q("term", **{"_index": "products"}),
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"field_value_factor": {
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"field": "brand_priority",
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"modifier": "log1p",
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"factor": 0.15,
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"missing": 0,
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},
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"weight": 0.35,
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},
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{
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"filter": Q("term", **{"_index": "products"}),
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"field_value_factor": {
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"field": "category_priority",
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"modifier": "log1p",
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"factor": 0.16,
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"missing": 0,
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},
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"weight": 0.36,
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},
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{
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"filter": Q("term", **{"_index": "products"}),
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"field_value_factor": {
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"field": "rating",
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"modifier": "log1p",
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"factor": 0.08,
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"missing": 0,
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},
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"weight": 0.25,
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},
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{
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"filter": Q("term", **{"_index": "products"}),
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"field_value_factor": {
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"field": "total_orders",
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"modifier": "log1p",
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"factor": 0.15,
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"missing": 0,
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},
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"weight": 0.3,
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},
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{
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"filter": Q(
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"bool",
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must=[
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Q("term", **{"_index": "products"}),
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Q("term", **{"personal_orders_only": False}),
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],
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),
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"weight": 0.7,
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},
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{
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"filter": Q("term", **{"_index": "categories"}),
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"field_value_factor": {
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"field": "priority",
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"modifier": "log1p",
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"factor": 0.18,
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"missing": 0,
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},
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"weight": 0.45,
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},
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{
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"filter": Q("term", **{"_index": "brands"}),
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"field_value_factor": {
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"field": "priority",
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"modifier": "log1p",
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"factor": 0.18,
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"missing": 0,
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},
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"weight": 0.45,
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},
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]
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def process_query(
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query: str = "",
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request: Request | None = None,
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indexes: tuple[str, ...] = ("categories", "brands", "products"),
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use_transliteration: bool = True,
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) -> dict[str, list[dict[str, Any]]] | None:
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if not query:
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raise ValueError(_("no search term provided."))
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query = query.strip()
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try:
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exact_shoulds = [
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Q("term", **{"partnumber.raw": {"value": query.lower(), "boost": 20.0}}),
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Q("term", **{"sku.raw": {"value": query.lower(), "boost": 16.0}}),
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Q("term", **{"slug": {"value": slugify(query), "boost": 12.0}}),
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Q("match", **{"name.ci": {"query": query, "boost": 8.0}}),
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]
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lang = ""
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if request and hasattr(request, "LANGUAGE_CODE") and request.LANGUAGE_CODE:
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lang = request.LANGUAGE_CODE.lower()
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base = lang.split("-")[0] if lang else ""
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is_cjk = base in {"ja", "zh"}
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is_rtl_or_indic = base in {"ar", "hi"}
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fields_all = SMART_FIELDS[:]
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if not use_transliteration:
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fields_all = [f for f in fields_all if ".translit" not in f]
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if is_cjk or is_rtl_or_indic:
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fields_all = [f for f in fields_all if ".phonetic" not in f]
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fields_all = [
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f.replace("name.ngram^6", "name.ngram^8")
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.replace("title.ngram^5", "title.ngram^7")
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.replace("description.ngram^3", "description.ngram^4")
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for f in fields_all
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]
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fuzzy = None if (is_cjk or is_rtl_or_indic) else "AUTO:5,8"
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is_code_like = bool(re.search(r"[0-9]", query)) and " " not in query
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text_shoulds = [
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Q(
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"multi_match",
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query=query,
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fields=fields_all,
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operator="and",
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type="most_fields",
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tie_breaker=0.2,
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**({"fuzziness": fuzzy} if fuzzy else {}),
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),
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Q(
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"multi_match",
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query=query,
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fields=[f for f in fields_all if f.endswith(".auto")],
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type="bool_prefix",
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),
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]
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if is_code_like:
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text_shoulds.extend(
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[
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Q(
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"term",
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**{"partnumber.raw": {"value": query.lower(), "boost": 14.0}},
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),
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Q("term", **{"sku.raw": {"value": query.lower(), "boost": 12.0}}),
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Q(
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"prefix",
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**{"partnumber.raw": {"value": query.lower(), "boost": 4.0}},
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),
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]
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)
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query_base = Q(
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"bool",
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should=exact_shoulds + text_shoulds,
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minimum_should_match=1,
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)
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def build_search(idxs: list[str], size: int) -> Search:
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return (
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Search(index=idxs)
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.query(query_base)
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.extra(
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rescore={
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"window_size": 200,
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"query": {
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"rescore_query": Q(
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"function_score",
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query=Q("match_all"),
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functions=functions,
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boost_mode="sum",
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score_mode="sum",
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max_boost=1.2,
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).to_dict(),
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"query_weight": 1.0,
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"rescore_query_weight": 0.6,
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},
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}
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)
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.extra(size=size, track_total_hits=True)
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)
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resp_cats = None
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if "categories" in indexes:
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search_cats = build_search(["categories"], size=33)
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resp_cats = search_cats.execute()
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resp_brands = None
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if "brands" in indexes:
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search_brands = build_search(["brands"], size=33)
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resp_brands = search_brands.execute()
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resp_products = None
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if "products" in indexes:
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search_products = build_search(["products"], size=33)
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resp_products = search_products.execute()
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results: dict[str, list[dict[str, Any]]] = {
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"products": [],
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"categories": [],
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"brands": [],
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"posts": [],
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}
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uuids_by_index: dict[str, list[str]] = {
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"products": [],
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"categories": [],
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"brands": [],
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}
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hit_cache: list[Any] = []
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seen_keys: set[tuple[str, str]] = set()
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def _hit_key(hittee: Any) -> tuple[str, str]:
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return hittee.meta.index, str(
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getattr(hittee, "uuid", None) or hittee.meta.id
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)
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def _collect_hits(hits: list[Any]) -> None:
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for hh in hits:
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key = _hit_key(hh)
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if key in seen_keys:
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continue
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hit_cache.append(hh)
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seen_keys.add(key)
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if getattr(hh, "uuid", None):
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uuids_by_index.setdefault(hh.meta.index, []).append(str(hh.uuid))
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exact_queries_by_index: dict[str, list[Any]] = {
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"categories": [
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Q("term", **{"name.raw": {"value": query}}),
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Q("term", **{"slug": {"value": slugify(query)}}),
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],
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"brands": [
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Q("term", **{"name.raw": {"value": query}}),
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Q("term", **{"slug": {"value": slugify(query)}}),
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],
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}
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# Collect exact product matches in strict priority: partnumber > sku > slug > name.ci
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if "products" in indexes:
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product_exact_sequence = [
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Q("term", **{"partnumber.raw": {"value": query.lower()}}),
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Q("term", **{"sku.raw": {"value": query.lower()}}),
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Q("term", **{"slug": {"value": slugify(query)}}),
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Q("match", **{"name.ci": {"query": query}}),
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]
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for qx in product_exact_sequence:
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try:
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resp_exact = (
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Search(index=["products"])
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.query(qx)
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.extra(size=5, track_total_hits=False)
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.execute()
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)
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except NotFoundError:
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resp_exact = None
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if resp_exact is not None and getattr(resp_exact, "hits", None):
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_collect_hits(list(resp_exact.hits))
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for idx_name in ("categories", "brands"):
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if idx_name in indexes:
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shoulds = exact_queries_by_index[idx_name]
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s_exact = (
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Search(index=[idx_name])
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.query(Q("bool", should=shoulds, minimum_should_match=1))
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.extra(size=5, track_total_hits=False)
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)
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try:
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resp_exact = s_exact.execute()
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except NotFoundError:
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resp_exact = None
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if resp_exact is not None and getattr(resp_exact, "hits", None):
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_collect_hits(list(resp_exact.hits))
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for h in (
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list(resp_cats.hits[:12] if resp_cats else [])
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+ list(resp_brands.hits[:12] if resp_brands else [])
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+ list(resp_products.hits[:26] if resp_products else [])
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):
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k = _hit_key(h)
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if k in seen_keys:
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continue
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hit_cache.append(h)
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seen_keys.add(k)
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if getattr(h, "uuid", None):
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uuids_by_index.setdefault(h.meta.index, []).append(str(h.uuid))
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products_by_uuid = {}
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brands_by_uuid = {}
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cats_by_uuid = {}
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if request:
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if uuids_by_index.get("products"):
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products_by_uuid = {
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str(p.uuid): p
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for p in Product.objects.filter(uuid__in=uuids_by_index["products"])
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.select_related("brand", "category")
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.prefetch_related("images")
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}
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if uuids_by_index.get("brands"):
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brands_by_uuid = {
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str(b.uuid): b
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for b in Brand.objects.filter(uuid__in=uuids_by_index["brands"])
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}
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if uuids_by_index.get("categories"):
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cats_by_uuid = {
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str(c.uuid): c
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for c in Category.objects.filter(
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uuid__in=uuids_by_index["categories"]
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)
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}
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for hit in hit_cache:
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obj_uuid = getattr(hit, "uuid", None) or hit.meta.id
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obj_name = (
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getattr(hit, "name", None) or getattr(hit, "title", None) or "N/A"
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)
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obj_slug = getattr(hit, "slug", "") or (
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slugify(obj_name) if hit.meta.index in {"brands", "categories"} else ""
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)
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image_url = None
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idx = hit.meta.index
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if idx == "products" and request:
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prod = products_by_uuid.get(str(obj_uuid))
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if prod:
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first = prod.images.order_by("priority").first()
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if first and first.image:
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image_url = request.build_absolute_uri(first.image.url)
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elif idx == "brands" and request:
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brand = brands_by_uuid.get(str(obj_uuid))
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if brand and brand.small_logo:
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image_url = request.build_absolute_uri(brand.small_logo.url)
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elif idx == "categories" and request:
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cat = cats_by_uuid.get(str(obj_uuid))
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if cat and cat.image:
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image_url = request.build_absolute_uri(cat.image.url)
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hit_result = {
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"uuid": str(obj_uuid),
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"name": obj_name,
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"slug": obj_slug,
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"image": image_url,
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}
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if settings.DEBUG:
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if idx == "products":
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hit_result["rating_debug"] = getattr(hit, "rating", 0)
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hit_result["total_orders_debug"] = getattr(hit, "total_orders", 0)
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hit_result["brand_priority_debug"] = getattr(
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hit, "brand_priority", 0
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)
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hit_result["category_priority_debug"] = getattr(
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hit, "category_priority", 0
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)
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if idx in ("brands", "categories"):
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hit_result["priority_debug"] = getattr(hit, "priority", 0)
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results[idx].append(hit_result)
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return results
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except NotFoundError as nfe:
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raise Http404 from nfe
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LANGUAGE_ANALYZER_MAP = {
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"cs": "czech",
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"da": "danish",
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"de": "german",
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"en": "english",
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"es": "spanish",
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"fr": "french",
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"it": "italian",
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"nl": "dutch",
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"pt": "portuguese",
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"ro": "romanian",
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"ja": "cjk_search",
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"zh": "cjk_search",
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"ar": "arabic_search",
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"hi": "indic_search",
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"ru": "russian",
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"pl": "standard",
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"kk": "standard",
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}
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def _lang_analyzer(lang_code: str) -> str:
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base = lang_code.split("-")[0].lower()
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return LANGUAGE_ANALYZER_MAP.get(base, "icu_query")
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class ActiveOnlyMixin:
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def get_queryset(self) -> QuerySet[Any]:
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return super().get_queryset().filter(is_active=True)
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def should_index_object(self, obj) -> bool:
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return getattr(obj, "is_active", False)
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COMMON_ANALYSIS = {
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"char_filter": {
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"icu_nfkc_cf": {"type": "icu_normalizer", "name": "nfkc_cf"},
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"strip_ws_punct": {
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"type": "pattern_replace",
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"pattern": "[\\s\\p{Punct}]+",
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"replacement": "",
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},
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},
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"filter": {
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"edge_ngram_filter": {"type": "edge_ngram", "min_gram": 1, "max_gram": 20},
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"ngram_filter": {"type": "ngram", "min_gram": 2, "max_gram": 20},
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"cjk_bigram": {"type": "cjk_bigram"},
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"icu_folding": {"type": "icu_folding"},
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"double_metaphone": {
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"type": "phonetic",
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"encoder": "double_metaphone",
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"replace": False,
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},
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"arabic_norm": {"type": "arabic_normalization"},
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"indic_norm": {"type": "indic_normalization"},
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"icu_any_latin": {"type": "icu_transform", "id": "Any-Latin"},
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"icu_latin_ascii": {"type": "icu_transform", "id": "Latin-ASCII"},
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"icu_ru_latin_bgn": {"type": "icu_transform", "id": "Russian-Latin/BGN"},
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},
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"analyzer": {
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"icu_query": {
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"type": "custom",
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"char_filter": ["icu_nfkc_cf"],
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"tokenizer": "icu_tokenizer",
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"filter": ["lowercase", "icu_folding"],
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},
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"autocomplete": {
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"type": "custom",
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"char_filter": ["icu_nfkc_cf"],
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"tokenizer": "icu_tokenizer",
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"filter": ["lowercase", "icu_folding", "edge_ngram_filter"],
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},
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"autocomplete_search": {
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"type": "custom",
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"char_filter": ["icu_nfkc_cf"],
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"tokenizer": "icu_tokenizer",
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"filter": ["lowercase", "icu_folding"],
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},
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"name_ngram": {
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"type": "custom",
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"char_filter": ["icu_nfkc_cf"],
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"tokenizer": "icu_tokenizer",
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"filter": ["lowercase", "icu_folding", "ngram_filter"],
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},
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"name_phonetic": {
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"type": "custom",
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"char_filter": ["icu_nfkc_cf"],
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"tokenizer": "icu_tokenizer",
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"filter": ["lowercase", "icu_folding", "double_metaphone"],
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},
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"name_exact": {
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"type": "custom",
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"char_filter": ["icu_nfkc_cf", "strip_ws_punct"],
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"tokenizer": "keyword",
|
|
"filter": ["lowercase", "icu_folding"],
|
|
},
|
|
"cjk_search": {
|
|
"type": "custom",
|
|
"char_filter": ["icu_nfkc_cf"],
|
|
"tokenizer": "icu_tokenizer",
|
|
"filter": ["lowercase", "icu_folding", "cjk_bigram"],
|
|
},
|
|
"arabic_search": {
|
|
"type": "custom",
|
|
"char_filter": ["icu_nfkc_cf"],
|
|
"tokenizer": "icu_tokenizer",
|
|
"filter": ["lowercase", "icu_folding", "arabic_norm"],
|
|
},
|
|
"indic_search": {
|
|
"type": "custom",
|
|
"char_filter": ["icu_nfkc_cf"],
|
|
"tokenizer": "icu_tokenizer",
|
|
"filter": ["lowercase", "icu_folding", "indic_norm"],
|
|
},
|
|
"translit_index": {
|
|
"type": "custom",
|
|
"char_filter": ["icu_nfkc_cf"],
|
|
"tokenizer": "icu_tokenizer",
|
|
"filter": [
|
|
"icu_any_latin",
|
|
"icu_ru_latin_bgn",
|
|
"icu_latin_ascii",
|
|
"lowercase",
|
|
"icu_folding",
|
|
"double_metaphone",
|
|
],
|
|
},
|
|
"translit_query": {
|
|
"type": "custom",
|
|
"char_filter": ["icu_nfkc_cf"],
|
|
"tokenizer": "icu_tokenizer",
|
|
"filter": [
|
|
"icu_any_latin",
|
|
"icu_ru_latin_bgn",
|
|
"icu_latin_ascii",
|
|
"lowercase",
|
|
"icu_folding",
|
|
"double_metaphone",
|
|
],
|
|
},
|
|
},
|
|
"normalizer": {
|
|
"lc_norm": {
|
|
"type": "custom",
|
|
"filter": ["lowercase", "icu_folding"],
|
|
}
|
|
},
|
|
}
|
|
|
|
|
|
def add_multilang_fields(cls: Any) -> None:
|
|
for code, _lang in settings.LANGUAGES:
|
|
lc = code.replace("-", "_").lower()
|
|
name_field = f"name_{lc}"
|
|
setattr(
|
|
cls,
|
|
name_field,
|
|
fields.TextField(
|
|
attr=name_field,
|
|
analyzer=_lang_analyzer(code),
|
|
copy_to="name",
|
|
fields={
|
|
"raw": fields.KeywordField(ignore_above=256),
|
|
"ngram": fields.TextField(
|
|
analyzer="name_ngram", search_analyzer="icu_query"
|
|
),
|
|
"phonetic": fields.TextField(analyzer="name_phonetic"),
|
|
"translit": fields.TextField(
|
|
analyzer="translit_index", search_analyzer="translit_query"
|
|
),
|
|
},
|
|
),
|
|
)
|
|
|
|
def make_prepare(attr: str) -> Callable[[Any, Any], str]:
|
|
return lambda self, instance: getattr(instance, attr, "") or ""
|
|
|
|
setattr(cls, f"prepare_{name_field}", make_prepare(name_field))
|
|
|
|
desc_field = f"description_{lc}"
|
|
setattr(
|
|
cls,
|
|
desc_field,
|
|
fields.TextField(
|
|
attr=desc_field,
|
|
analyzer=_lang_analyzer(code),
|
|
copy_to="description",
|
|
fields={
|
|
"raw": fields.KeywordField(ignore_above=256),
|
|
"ngram": fields.TextField(
|
|
analyzer="name_ngram", search_analyzer="icu_query"
|
|
),
|
|
"phonetic": fields.TextField(analyzer="name_phonetic"),
|
|
"translit": fields.TextField(
|
|
analyzer="translit_index", search_analyzer="translit_query"
|
|
),
|
|
},
|
|
),
|
|
)
|
|
setattr(cls, f"prepare_{desc_field}", make_prepare(desc_field))
|
|
|
|
|
|
def populate_index() -> None:
|
|
for doc in registry.get_documents(set(registry.get_models())):
|
|
qs = doc().get_indexing_queryset()
|
|
doc().update(qs, parallel=True, refresh=True)
|
|
return None
|
|
|
|
|
|
def process_system_query(
|
|
query: str,
|
|
*,
|
|
indexes: tuple[str, ...] = ("categories", "brands", "products"),
|
|
size_per_index: int = 25,
|
|
language_code: str | None = None,
|
|
use_transliteration: bool = True,
|
|
) -> dict[str, list[dict[str, Any]]]:
|
|
if not query:
|
|
raise ValueError(_("no search term provided."))
|
|
|
|
q = query.strip()
|
|
|
|
base = (language_code or "").split("-")[0].lower() if language_code else ""
|
|
is_cjk = base in {"ja", "zh"}
|
|
is_rtl_or_indic = base in {"ar", "hi"}
|
|
|
|
fields_all = [f for f in SMART_FIELDS if not f.startswith(("sku", "partnumber"))]
|
|
if not use_transliteration:
|
|
fields_all = [f for f in fields_all if ".translit" not in f]
|
|
|
|
if is_cjk or is_rtl_or_indic:
|
|
fields_all = [f for f in fields_all if ".phonetic" not in f]
|
|
fields_all = [
|
|
f.replace("ngram^6", "ngram^8")
|
|
.replace("ngram^5", "ngram^7")
|
|
.replace("ngram^3", "ngram^4")
|
|
for f in fields_all
|
|
]
|
|
|
|
fuzzy = None if (is_cjk or is_rtl_or_indic) else "AUTO:5,8"
|
|
|
|
mm = Q(
|
|
"multi_match",
|
|
query=q,
|
|
fields=fields_all,
|
|
operator="and",
|
|
type="most_fields",
|
|
tie_breaker=0.2,
|
|
**({"fuzziness": fuzzy} if fuzzy else {}),
|
|
)
|
|
|
|
results: dict[str, list[dict[str, Any]]] = {idx: [] for idx in indexes}
|
|
|
|
for idx in indexes:
|
|
s = (
|
|
Search(index=[idx])
|
|
.query(mm)
|
|
.extra(size=size_per_index, track_total_hits=False)
|
|
)
|
|
resp = s.execute()
|
|
for h in resp.hits:
|
|
name = getattr(h, "name", None) or getattr(h, "title", None) or "N/A"
|
|
results[idx].append(
|
|
{
|
|
"id": getattr(h, "uuid", None) or h.meta.id,
|
|
"name": name,
|
|
"slug": getattr(h, "slug", ""),
|
|
"score": getattr(h.meta, "score", None),
|
|
}
|
|
)
|
|
|
|
return results
|