mirror of
https://github.com/searxng/searxng.git
synced 2024-12-05 08:56:29 +00:00
135 lines
3.4 KiB
Text
135 lines
3.4 KiB
Text
|
.. _sql engines:
|
||
|
|
||
|
===========
|
||
|
SQL Engines
|
||
|
===========
|
||
|
|
||
|
.. sidebar:: further read
|
||
|
|
||
|
- `SQLite <https://www.sqlite.org/index.html>`_
|
||
|
- `PostgreSQL <https://www.postgresql.org>`_
|
||
|
- `MySQL <https://www.mysql.com>`_
|
||
|
|
||
|
.. contents::
|
||
|
:depth: 2
|
||
|
:local:
|
||
|
:backlinks: entry
|
||
|
|
||
|
.. sidebar:: info
|
||
|
|
||
|
Initial sponsored by `Search and Discovery Fund
|
||
|
<https://nlnet.nl/discovery>`_ of `NLnet Foundation <https://nlnet.nl/>`_.
|
||
|
|
||
|
With the *SQL engines* you can bind SQL databases into SearXNG. The following
|
||
|
Relational Database Management System (RDBMS) are supported:
|
||
|
|
||
|
- :ref:`engine sqlite`
|
||
|
- :ref:`engine postgresql`
|
||
|
- :ref:`engine mysql_server` & :ref:`engine mariadb_server`
|
||
|
|
||
|
All of the engines above are just commented out in the :origin:`settings.yml
|
||
|
<searx/settings.yml>`, as you have to set the required attributes for the
|
||
|
engines, e.g. ``database:`` ...
|
||
|
|
||
|
.. code:: yaml
|
||
|
|
||
|
- name: ...
|
||
|
engine: {sqlite|postgresql|mysql_server}
|
||
|
database: ...
|
||
|
result_template: {template_name}
|
||
|
query_str: ...
|
||
|
|
||
|
By default, the engines use the ``key-value`` template for displaying results /
|
||
|
see :origin:`simple <searx/templates/simple/result_templates/key-value.html>`
|
||
|
theme. If you are not satisfied with the original result layout, you can use
|
||
|
your own template, set ``result_template`` attribute to ``{template_name}`` and
|
||
|
place the templates at::
|
||
|
|
||
|
searx/templates/{theme_name}/result_templates/{template_name}
|
||
|
|
||
|
If you do not wish to expose these engines on a public instance, you can still
|
||
|
add them and limit the access by setting ``tokens`` as described in section
|
||
|
:ref:`private engines`.
|
||
|
|
||
|
|
||
|
Extra Dependencies
|
||
|
==================
|
||
|
|
||
|
For using :ref:`engine postgresql` or :ref:`engine mysql_server` you need to
|
||
|
install additional packages in Python's Virtual Environment of your SearXNG
|
||
|
instance. To switch into the environment (:ref:`searxng-src`) you can use
|
||
|
:ref:`searxng.sh`::
|
||
|
|
||
|
$ sudo utils/searxng.sh instance cmd bash
|
||
|
(searxng-pyenv)$ pip install ...
|
||
|
|
||
|
|
||
|
Configure the engines
|
||
|
=====================
|
||
|
|
||
|
The configuration of the new database engines are similar. You must put a valid
|
||
|
SQL-SELECT query in ``query_str``. At the moment you can only bind at most one
|
||
|
parameter in your query. By setting the attribute ``limit`` you can define how
|
||
|
many results you want from the SQL server. Basically, it is the same as the
|
||
|
``LIMIT`` keyword in SQL.
|
||
|
|
||
|
Please, do not include ``LIMIT`` or ``OFFSET`` in your SQL query as the engines
|
||
|
rely on these keywords during paging. If you want to configure the number of
|
||
|
returned results use the option ``limit``.
|
||
|
|
||
|
.. _engine sqlite:
|
||
|
|
||
|
SQLite
|
||
|
------
|
||
|
|
||
|
.. sidebar:: info
|
||
|
|
||
|
- :origin:`sqlite.py <searx/engines/sqlite.py>`
|
||
|
|
||
|
.. automodule:: searx.engines.sqlite
|
||
|
:members:
|
||
|
|
||
|
|
||
|
.. _engine postgresql:
|
||
|
|
||
|
PostgreSQL
|
||
|
----------
|
||
|
|
||
|
.. _psycopg2: https://www.psycopg.org/install
|
||
|
|
||
|
.. sidebar:: info
|
||
|
|
||
|
- :origin:`postgresql.py <searx/engines/postgresql.py>`
|
||
|
- ``pip install`` `psycopg2-binary <psycopg2>`_
|
||
|
|
||
|
.. automodule:: searx.engines.postgresql
|
||
|
:members:
|
||
|
|
||
|
.. _engine mysql_server:
|
||
|
|
||
|
MySQL
|
||
|
-----
|
||
|
|
||
|
.. sidebar:: info
|
||
|
|
||
|
- :origin:`mysql_server.py <searx/engines/mysql_server.py>`
|
||
|
- ``pip install`` :pypi:`mysql-connector-python <mysql-connector-python>`
|
||
|
|
||
|
|
||
|
.. automodule:: searx.engines.mysql_server
|
||
|
:members:
|
||
|
|
||
|
.. _engine mariadb_server:
|
||
|
|
||
|
MariaDB
|
||
|
--------
|
||
|
|
||
|
.. sidebar:: info
|
||
|
|
||
|
- :origin:`mariadb_server.py <searx/engines/mariadb_server.py>`
|
||
|
- ``pip install`` :pypi:`mariadb <mariadb>`
|
||
|
|
||
|
|
||
|
.. automodule:: searx.engines.mariadb_server
|
||
|
:members:
|