fix: dont use query for children total count

lektor_groupby/backref.py

@@ -65,7 +65,6 @@ class VGroups:
         if not ctx:
             raise NotImplementedError("Shouldn't happen, where is my context?")
         builder = ctx.build_state.builder
-        # TODO: fix record_dependency -> process in non-capturing context
         GroupByRef.of(builder).make_once(keys)  # ensure did cluster before use
         # find groups
         proc_list = [record]

lektor_groupby/pagination.py

@@ -1,20 +1,29 @@
 from lektor import datamodel
-from typing import TYPE_CHECKING, Any
+from typing import TYPE_CHECKING, Any, Dict
 if TYPE_CHECKING:
+    from lektor.environment import Environment
     from lektor.pagination import Pagination
     from lektor.sourceobj import SourceObject
 
 
 class PaginationConfig(datamodel.PaginationConfig):
     # because original method does not work for virtual sources.
+    def __init__(self, env: 'Environment', config: Dict[str, Any], total: int):
+        super().__init__(env, **config)
+        self._total_items_count = total
+
     @staticmethod
-    def get_record_for_page(source: 'SourceObject', page_num: int) -> Any:
-        for_page = getattr(source, '__for_page__', None)
+    def get_record_for_page(record: 'SourceObject', page_num: int) -> Any:
+        for_page = getattr(record, '__for_page__', None)
         if callable(for_page):
             return for_page(page_num)
-        return datamodel.PaginationConfig.get_record_for_page(source, page_num)
+        return datamodel.PaginationConfig.get_record_for_page(record, page_num)
+
+    def count_total_items(self, record: 'SourceObject') -> int:
+        ''' Override super() to prevent a record.children query. '''
+        return self._total_items_count
 
     if TYPE_CHECKING:
-        def get_pagination_controller(self, source: 'SourceObject') \
+        def get_pagination_controller(self, record: 'SourceObject') \
                 -> 'Pagination':
             ...

lektor_groupby/query.py

@@ -58,6 +58,11 @@ class FixedRecordsQuery(Query):
             return len(self.__child_paths)
         return super().count()  # type: ignore[no-any-return]
 
+    @property
+    def total(self) -> int:
+        ''' Return total entries count (without any filter). '''
+        return len(self.__child_paths)
+
     def get(self, path: str, page_num: Optional[int] = None) \
             -> Optional['Record']:
         ''' Return Record with given path '''

lektor_groupby/vobj.py

@@ -100,7 +100,8 @@ class GroupBySource(VirtualSourceObject):
     @cached_property
     def _pagination_config(self) -> 'PaginationConfig':
         # Generate `PaginationConfig` once we need it
-        return PaginationConfig(self.record.pad.env, **self.config.pagination)
+        return PaginationConfig(self.record.pad.env, self.config.pagination,
+                                self._query.total)
 
     @cached_property
     def pagination(self) -> 'Pagination':
@@ -185,10 +186,10 @@ class GroupBySource(VirtualSourceObject):
     #   Properties & Helper
     # -----------------------
 
-    @cached_property
+    @property
     def children(self) -> FixedRecordsQuery:
         ''' Return query of children of type Record. '''
-        return self._query.request_page(self.page_num)
+        return self._query
 
     def __getitem__(self, key: str) -> Any:
         # Used for virtual path resolver