rhodecode-enterprise-ce Files · docs/contributing/db-schema.rst

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      =======================

      DB Schema and Migration

      =======================

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      To create or alter tables in the database, it's necessary to change a couple of

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      files, apart from configuring the settings pointing to the latest database

      schema.

      Database Model and ORM

      ----------------------

      On ``rhodecode.model.db`` you will find the database definition of all tables and 

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      fields. Any freshly installed database will be correctly created by the definitions 

      here. So, any change to this file will affect the tests without having to change

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      any other file.

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      A second layer are the business classes inside ``rhodecode.model``. 

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      Database Migration

      ------------------

      Three files play a role when creating database migrations:

          * Database schema inside ``rhodecode.lib.dbmigrate``

          * Database version inside ``rhodecode.lib.dbmigrate`` 

          * Configuration ``__dbversion__`` at ``rhodecode.__init__``

      Schema is a snapshot of the database version BEFORE the migration. So, it's

      the initial state before any changes were added. The name convention is

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      the latest release version where the snapshot was created, and not the 

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      target version of this code.

      Version is the method that will define how to UPGRADE/DOWNGRADE the database.

      ``rhodecode.__init__`` contains only a variable that defines up to which version of 

      the database will be used to upgrade. Eg.: ``__dbversion__ = 45``

      For examples on how to create those files, please see the existing code.

      Migration Command

      ^^^^^^^^^^^^^^^^^

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      After you've changed the database ORM and migration files, you can run::

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         rc-upgrade-db <ini-file>

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        lisaq
    
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      The database will be upgraded up to the version defined in the ``__init__`` file.

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marcink project: added all source files and assets	r1	=======================
		DB Schema and Migration
		=======================

lisaq docs: updates to contributor documentation #4039	r271	To create or alter tables in the database, it's necessary to change a couple of
marcink project: added all source files and assets	r1	files, apart from configuring the settings pointing to the latest database
		schema.


		Database Model and ORM
		----------------------

		On ``rhodecode.model.db`` you will find the database definition of all tables and
lisaq docs: updates to contributor documentation #4039	r271	fields. Any freshly installed database will be correctly created by the definitions
		here. So, any change to this file will affect the tests without having to change
marcink project: added all source files and assets	r1	any other file.

lisaq docs: updates to contributor documentation #4039	r271	A second layer are the business classes inside ``rhodecode.model``.
marcink project: added all source files and assets	r1

		Database Migration
		------------------

		Three files play a role when creating database migrations:

		* Database schema inside ``rhodecode.lib.dbmigrate``
		* Database version inside ``rhodecode.lib.dbmigrate``
		* Configuration ``__dbversion__`` at ``rhodecode.__init__``


		Schema is a snapshot of the database version BEFORE the migration. So, it's
		the initial state before any changes were added. The name convention is
lisaq docs: updates to contributor documentation #4039	r271	the latest release version where the snapshot was created, and not the
marcink project: added all source files and assets	r1	target version of this code.

		Version is the method that will define how to UPGRADE/DOWNGRADE the database.

		``rhodecode.__init__`` contains only a variable that defines up to which version of
		the database will be used to upgrade. Eg.: ``__dbversion__ = 45``


		For examples on how to create those files, please see the existing code.


		Migration Command
		^^^^^^^^^^^^^^^^^

lisaq docs: updates to contributor documentation #4039	r271	After you've changed the database ORM and migration files, you can run::
marcink project: added all source files and assets	r1
marcink docs: updated old commands not longer available starting from 4.11	r2628	rc-upgrade-db <ini-file>
marcink project: added all source files and assets	r1
lisaq docs: updates to contributor documentation #4039	r271	The database will be upgraded up to the version defined in the ``__init__`` file.