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docs: clarify that Session usually should be called - methods should not be used directly
Documentation based on clarification by Søren Løvborg:
Session is the factory/singleton manager, which tracks the current session (per
thread). To end the current session entirely and destroy the Session object, we
call remove on the manager (Session.remove()). (A new session will be created
on-demand.)
Session() returns the current session for the active thread (or creates a new
session, if there's none). commit is a method of the SQLAlchemy Session class,
thus called as Session().commit() ... it's a method call on the current Session
object, not the session factory/manager.
SQLAlchemy may have some hackery to allow Session.commit() to be called, and
the call automatically redirect to the actual Session object... but that's a
hack and should be avoided.
TL;DR: for remove, call it on Session; for everything else, call it on
Session().
Documentation based on clarification by Søren Løvborg:
Session is the factory/singleton manager, which tracks the current session (per
thread). To end the current session entirely and destroy the Session object, we
call remove on the manager (Session.remove()). (A new session will be created
on-demand.)
Session() returns the current session for the active thread (or creates a new
session, if there's none). commit is a method of the SQLAlchemy Session class,
thus called as Session().commit() ... it's a method call on the current Session
object, not the session factory/manager.
SQLAlchemy may have some hackery to allow Session.commit() to be called, and
the call automatically redirect to the actual Session object... but that's a
hack and should be avoided.
TL;DR: for remove, call it on Session; for everything else, call it on
Session().
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=============
Customization
=============
There are several ways to customize Kallithea to your needs depending on what
you want to achieve.
HTML/JavaScript/CSS customization
---------------------------------
To customize the look-and-feel of the web interface (for example to add a
company banner or some JavaScript widget or to tweak the CSS style definitions)
you can enter HTML code (possibly with JavaScript and/or CSS) directly via the
*Admin > Settings > Global > HTML/JavaScript customization
block*.
Behavioral customization: rcextensions
--------------------------------------
Some behavioral customization can be done in Python using ``rcextensions``, a
custom Python package that can extend Kallithea functionality.
With ``rcextensions`` it's possible to add additional mappings for Whoosh
indexing and statistics, to add additional code into the push/pull/create/delete
repository hooks (for example to send signals to build bots such as Jenkins) and
even to monkey-patch certain parts of the Kallithea source code (for example
overwrite an entire function, change a global variable, ...).
To generate a skeleton extensions package, run::
gearbox make-rcext -c my.ini
This will create an ``rcextensions`` package next to the specified ``ini`` file.
See the ``__init__.py`` file inside the generated ``rcextensions`` package
for more details.
Behavioral customization: code changes
--------------------------------------
As Kallithea is open-source software, you can make any changes you like directly
in the source code.
We encourage you to send generic improvements back to the
community so that Kallithea can become better. See :ref:`contributing` for more
details.
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