5 Commits

Author	SHA1	Message	Date
Alan Orth	d0ea62d2bd	database.py: Use one line for psycopg2 imports	2018-09-26 22:23:24 +03:00
Alan Orth	6e4bc630f7	database.py: Use psycopg2.extras.DictCursor ... This allows us to access records using their column name. I didn't notice that this was not working, as I had been testing the wrong server! See: http://initd.org/psycopg/docs/extras.html	2018-09-25 02:06:29 +03:00
Alan Orth	8f7450f67a	Use PostgreSQL instead of SQLite ... I was very surprised how easy and fast and robust SQLite was, but in the end I realized that its UPSERT support only came in version 3.24 and both Ubuntu 16.04 and 18.04 have older versions than that! I did manage to install libsqlite3-0 from Ubuntu 18.04 cosmic on my xenial host, but that feels dirty. PostgreSQL has support for UPSERT since 9.5, not to mention the same nice LIMIT and OFFSET clauses.	2018-09-25 00:49:47 +03:00
Alan Orth	89621af85d	Split database access into RW and RO ... The indexer need to be able to write to the database, but the API only needs to read it.	2018-09-24 00:00:05 +03:00
Alan Orth	9e942736b1	app.py: Get item statistics from SQLite database ... It is much more efficient to cache view and download statistics in a database than to query Solr on demand (not to mention that it is not possible to page easily with facets in Solr). I decided to use SQLite because it is fast, native in Python 3, and doesn't require any extra steps during provisioning (assuming permissions are ok).	2018-09-23 16:47:00 +03:00