fix show all functionality (#101)

Author: EricOuma

django_typesense/admin.py

@@ -100,12 +100,13 @@ def get_paginator(
         )
 
     def get_typesense_search_results(
-        self,
-        request,
-        search_term: str,
-        page_num: int = 1,
-        filter_by: str = "",
-        sort_by: str = "",
+            self,
+            request,
+            search_term: str,
+            page_num: int = 1,
+            filter_by: str = "",
+            sort_by: str = "",
+            list_per_page: int = None
     ):
         """
         Get the results from typesense with the provided filtering, sorting, pagination and search parameters applied
@@ -116,17 +117,20 @@ def get_typesense_search_results(
             page_num: The requested page number
             filter_by: The filtering parameters
             sort_by: The sort parameters
+            list_per_page: The number of results to return per page
 
         Returns:
             A list of typesense results
         """
+        if list_per_page is None:
+            list_per_page = self.list_per_page
 
         results = typesense_search(
             collection_name=self.model.collection_class.schema_name,
             q=search_term or "*",
             query_by=self.model.collection_class.query_by_fields,
             page=page_num,
-            per_page=self.list_per_page,
+            per_page=list_per_page,
             filter_by=filter_by,
             sort_by=sort_by,
         )

django_typesense/changelist.py

@@ -152,7 +152,9 @@ def get_results(self, request):
 
         # Get the list of objects to display on this page.
         if (self.show_all and can_show_all) or not multi_page:
-            # Reuse values defined in paginator
+            paginator = self.model_admin.get_paginator(
+                request, self.results, self.list_max_show_all
+            )
             result_list = paginator.results
         else:
             try:
@@ -396,6 +398,7 @@ def get_typesense_results(self, request):
             self.page_num,
             filter_by=filter_by,
             sort_by=sort_by,
+            list_per_page=self.list_max_show_all  # so that if we have all the data if we need to show all
         )
 
         # Set query string for clearing all filters.

django_typesense/paginator.py

@@ -49,7 +49,12 @@ def prepare_results(self):
 
     def page(self, number):
         """Return a Page object for the given 1-based page number."""
-        return self._get_page(self.results, number, self)
+        number = self.validate_number(number)
+        bottom = (number - 1) * self.per_page
+        top = bottom + self.per_page
+        if top + self.orphans >= self.count:
+            top = self.count
+        return self._get_page(self.results[bottom:top], number, self)
 
     @cached_property
     def count(self):