Add basic pagination to search results

The "deep paging problem" imposes some limit, which currently is a
hardcoded default value, `deep_page_limit=2000` in `do_search`.

Elasticsearch can be configured, too:

> Note that from + size can not be more than the index.max_result_window
index setting, which defaults to 10,000.

-- https://www.elastic.co/guide/en/elasticsearch/reference/current/search-request-body.html#request-body-search-from-size

1 files changed, 7 insertions, 2 deletions

diff --git a/python/fatcat_web/routes.py b/python/fatcat_web/routes.py
index 79b594e3..a41f388d 100644
--- a/python/fatcat_web/routes.py
+++ b/python/fatcat_web/routes.py
@@ -673,9 +673,12 @@ def release_search():
     if container_id and query:
         query += ' container_id:"{}"'.format(container_id)
 
+    offset = request.args.get('offset', '0')
+    offset = max(0, int(offset)) if offset.isnumeric() else 0
+
     if 'q' in request.args.keys():
         # always do files for HTML
-        found = do_release_search(query, fulltext_only=fulltext_only)
+        found = do_release_search(query, fulltext_only=fulltext_only, offset=offset)
         return render_template('release_search.html', found=found, query=query, fulltext_only=fulltext_only)
     else:
         return render_template('release_search.html', query=query, fulltext_only=fulltext_only)
@@ -684,10 +687,12 @@ def release_search():
 def container_search():
 
     query = request.args.get('q')
+    offset = request.args.get('offset', '0')
+    offset = max(0, int(offset)) if offset.isnumeric() else 0
 
     if 'q' in request.args.keys():
         # always do files for HTML
-        found = do_container_search(query)
+        found = do_container_search(query, offset=offset)
         return render_template('container_search.html', found=found, query=query)
     else:
         return render_template('container_search.html', query=query)