feat: add search operator and fields arguments

allow for more specific search queries by specifying the search_operator
and search_fields.

Author: dopry

grapple/types/structures.py

@@ -21,6 +21,21 @@ def parse_literal(ast, _variables=None):
             return return_value
 
 
+class SearchOperatorEnum(graphene.Enum):
+    """
+    Enum for search operator.
+    """
+
+    AND = "and"
+    OR = "or"
+
+    def __str__(self):
+        # the core search parser expects the operator to be a string.
+        # the default __str__ returns SearchOperatorEnum.AND/OR,
+        # this __str__ returns the value and/or for compatibility.
+        return self.value
+
+
 class QuerySetList(graphene.List):
     """
     List type with arguments used by Django's query sets.
@@ -31,6 +46,8 @@ class QuerySetList(graphene.List):
     * ``limit``
     * ``offset``
     * ``search_query``
+    * ``search_operator``
+    * ``search_fields``
     * ``order``
 
     :param enable_limit: Enable limit argument.
@@ -39,15 +56,21 @@ class QuerySetList(graphene.List):
     :type enable_offset: bool
     :param enable_search: Enable search query argument.
     :type enable_search: bool
+    :param enable_search_fields: Enable search fields argument, enable_search must also be True
+    :type enable_search_fields: bool
+    :param enable_search_operator: Enable search operator argument, enable_search must also be True
+    :type enable_search_operator: bool
     :param enable_order: Enable ordering via query argument.
     :type enable_order: bool
     """
 
     def __init__(self, of_type, *args, **kwargs):
         enable_limit = kwargs.pop("enable_limit", True)
         enable_offset = kwargs.pop("enable_offset", True)
-        enable_search = kwargs.pop("enable_search", True)
         enable_order = kwargs.pop("enable_order", True)
+        enable_search = kwargs.pop("enable_search", True)
+        enable_search_fields = kwargs.pop("enable_search_fields", True)
+        enable_search_operator = kwargs.pop("enable_search_operator", True)
 
         # Check if the type is a Django model type. Do not perform the
         # check if value is lazy.
@@ -92,6 +115,22 @@ def __init__(self, of_type, *args, **kwargs):
                 graphene.String,
                 description=_("Filter the results using Wagtail's search."),
             )
+            if enable_search_operator:
+                kwargs["search_operator"] = graphene.Argument(
+                    SearchOperatorEnum,
+                    description=_(
+                        "Specify search operator (and/or), see: https://docs.wagtail.org/en/stable/topics/search/searching.html#search-operator"
+                    ),
+                    default_value="and",
+                )
+
+            if enable_search_fields:
+                kwargs["search_fields"] = graphene.Argument(
+                    graphene.List(graphene.String),
+                    description=_(
+                        "A list of fields to search in. see: https://docs.wagtail.org/en/stable/topics/search/searching.html#specifying-the-fields-to-search"
+                    ),
+                )
 
         if "id" not in kwargs:
             kwargs["id"] = graphene.Argument(graphene.ID, description=_("Filter by ID"))
@@ -138,21 +177,29 @@ def PaginatedQuerySet(of_type, type_class, **kwargs):
     """
     Paginated QuerySet type with arguments used by Django's query sets.
 
-    This type setts the following arguments on itself:
+    This type sets the following arguments on itself:
 
     * ``id``
     * ``page``
     * ``per_page``
     * ``search_query``
+    * ``search_operator``
+    * ``search_fields``
     * ``order``
 
     :param enable_search: Enable search query argument.
     :type enable_search: bool
+    :param enable_search_fields: Enable search fields argument, enable_search must also be True
+    :type enable_search_fields: bool
+    :param enable_search_operator: Enable search operator argument, enable_search must also be True
+    :type enable_search_operator: bool
     :param enable_order: Enable ordering via query argument.
     :type enable_order: bool
     """
 
     enable_search = kwargs.pop("enable_search", True)
+    enable_search_fields = kwargs.pop("enable_search_fields", True)
+    enable_search_operator = kwargs.pop("enable_search_operator", True)
     enable_order = kwargs.pop("enable_order", True)
     required = kwargs.get("required", False)
     type_name = type_class if isinstance(type_class, str) else type_class.__name__
@@ -199,6 +246,22 @@ def PaginatedQuerySet(of_type, type_class, **kwargs):
         kwargs["search_query"] = graphene.Argument(
             graphene.String, description=_("Filter the results using Wagtail's search.")
         )
+        if enable_search_operator:
+            kwargs["search_operator"] = graphene.Argument(
+                SearchOperatorEnum,
+                description=_(
+                    "Specify search operator (and/or), see: https://docs.wagtail.org/en/stable/topics/search/searching.html#search-operator"
+                ),
+                default_value="and",
+            )
+
+        if enable_search_fields:
+            kwargs["search_fields"] = graphene.Argument(
+                graphene.List(graphene.String),
+                description=_(
+                    "A comma-separated list of fields to search in. see: https://docs.wagtail.org/en/stable/topics/search/searching.html#specifying-the-fields-to-search"
+                ),
+            )
 
     if "id" not in kwargs:
         kwargs["id"] = graphene.Argument(graphene.ID, description=_("Filter by ID"))

grapple/utils.py

@@ -8,6 +8,7 @@
 from wagtail import VERSION as WAGTAIL_VERSION
 from wagtail.models import Site
 from wagtail.search.index import class_is_indexed
+from wagtail.search.utils import parse_query_string
 
 from .settings import grapple_settings
 from .types.structures import BasePaginatedType, PaginationType
@@ -100,6 +101,8 @@ def resolve_queryset(
     id=None,
     order=None,
     collection=None,
+    search_operator="and",
+    search_fields=None,
     **kwargs,
 ):
     """
@@ -121,6 +124,11 @@ def resolve_queryset(
     :type order: str
     :param collection: Use Wagtail's collection id to filter images or documents
     :type collection: int
+    :param search_operator: The operator to use when combining search terms.
+                            Defaults to "and".
+    :type search_operator: "and" | "or"
+    :param search_fields: A list of fields to search. Defaults to all fields.
+    :type search_fields: list
     """
 
     qs = qs.all() if id is None else qs.filter(pk=id)
@@ -147,7 +155,18 @@ def resolve_queryset(
             query = Query.get(search_query)
             query.add_hit()
 
-        qs = qs.search(search_query, order_by_relevance=order_by_relevance)
+        filters, parsed_query = parse_query_string(search_query, str(search_operator))
+
+        # check if search_fields is provided in the query string if it isn't provided as a graphQL argument
+        if search_fields is None:
+            search_fields = filters.getlist("fields", None)
+
+        qs = qs.search(
+            parsed_query,
+            order_by_relevance=order_by_relevance,
+            operator=search_operator,
+            fields=search_fields,
+        )
         if connection.vendor != "sqlite":
             qs = qs.annotate_score("search_score")
 
@@ -178,17 +197,26 @@ def get_paginated_result(qs, page, per_page):
             count=len(page_obj.object_list),
             per_page=per_page,
             current_page=page_obj.number,
-            prev_page=page_obj.previous_page_number()
-            if page_obj.has_previous()
-            else None,
+            prev_page=(
+                page_obj.previous_page_number() if page_obj.has_previous() else None
+            ),
             next_page=page_obj.next_page_number() if page_obj.has_next() else None,
             total_pages=paginator.num_pages,
         ),
     )
 
 
 def resolve_paginated_queryset(
-    qs, info, page=None, per_page=None, search_query=None, id=None, order=None, **kwargs
+    qs,
+    info,
+    page=None,
+    per_page=None,
+    id=None,
+    order=None,
+    search_query=None,
+    search_operator="and",
+    search_fields=None,
+    **kwargs,
 ):
     """
     Add page, per_page and search capabilities to the query. This contains
@@ -202,11 +230,16 @@ def resolve_paginated_queryset(
     :type id: int
     :param per_page: The maximum number of items to include on a page.
     :type per_page: int
+    :param order: Order the query set using the Django QuerySet order_by format.
+    :type order: str
     :param search_query: Using Wagtail search, exclude objects that do not match
                          the search query.
     :type search_query: str
-    :param order: Order the query set using the Django QuerySet order_by format.
-    :type order: str
+    :param search_operator: The operator to use when combining search terms.
+                            Defaults to "and".
+    :type search_operator: "and" | "or"
+    :param search_fields: A list of fields to search. Defaults to all fields.
+    :type search_fields: list
     """
     page = int(page or 1)
     per_page = min(
@@ -231,7 +264,18 @@ def resolve_paginated_queryset(
             query = Query.get(search_query)
             query.add_hit()
 
-        qs = qs.search(search_query, order_by_relevance=order_by_relevance)
+        filters, parsed_query = parse_query_string(search_query, search_operator)
+
+        # check if search_fields is provided in the query string if it isn't provided as a graphQL argument
+        if search_fields is None:
+            search_fields = filters.getlist("fields", None)
+
+        qs = qs.search(
+            parsed_query,
+            order_by_relevance=order_by_relevance,
+            operator=search_operator,
+            fields=search_fields,
+        )
         if connection.vendor != "sqlite":
             qs = qs.annotate_score("search_score")