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| License: | GNU General Public License, version 2 (GPL-2.0) |
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migration_interface:: (6 methods):
depends_on()
effectively_installed()
update_schema()
revert_schema()
update_data()
revert_data()
Interface: migration_interface - X-Ref
Base class interface for database migrations| depends_on() X-Ref |
| Defines other migrations to be applied first return: array An array of migration class names |
| effectively_installed() X-Ref |
| Allows you to check if the migration is effectively installed (entirely optional) This is checked when a migration is installed. If true is returned, the migration will be set as installed without performing the database changes. This function is intended to help moving to migrations from a previous database updater, where some migrations may have been installed already even though they are not yet listed in the migrations table. return: bool True if this migration is installed, False if this migration is not installed (checked on install) |
| update_schema() X-Ref |
| Updates the database schema by providing a set of change instructions return: array Array of schema changes (compatible with db_tools->perform_schema_changes()) |
| revert_schema() X-Ref |
| Reverts the database schema by providing a set of change instructions return: array Array of schema changes (compatible with db_tools->perform_schema_changes()) |
| update_data() X-Ref |
| Updates data by returning a list of instructions to be executed return: array Array of data update instructions |
| revert_data() X-Ref |
| Reverts data by returning a list of instructions to be executed return: array Array of data instructions that will be performed on revert |
| Generated: Wed Nov 11 20:33:01 2020 | Cross-referenced by PHPXref 0.7.1 |