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discourse/db/post_migrate
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Krzysztof Kotlarek 14003abc37
FIX: Improve allowed_path column migration (#10321) 
Because previous migration was already deployed and some databases were already migrated, I needed to add some conditions to the migration.

Previous migration - https://github.com/discourse/discourse/blob/master/db/post_migrate/20200629232159_rename_path_whitelist_to_allowed_paths.rb

What will happen in a scenario when previous migration was not run.
1. column allowed_paths will be created
2. allowed_path will be populated with data from path_whitelist
3. path_whitelist column will be dropped

What will happen in a scenario when previous migration was already run.
1. column allowed_paths will not be created because already exists - `unless column_exists?(:embeddable_hosts, :allowed_paths)`
2. Data will not be copied because path_whitelist is missing - `if column_exists?(:embeddable_hosts, :path_whitelist) && column_exists?(:embeddable_hosts, :allowed_paths)`
3. path_whitelist column deletion will be skipped - `if column_exists?(:embeddable_hosts, :path_whitelist)`
 		2020-07-28 13:31:51 +10:00
..
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20180917034056_remove_superfluous_tables.rb FIX: Create readonly functions during backup 2019-08-09 11:39:46 +02:00
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20200522004855_remove_access_control_post_fk.rb Revert "Revert "Merge branch 'master' of https://github.com/discourse/discourse"" 2020-05-23 00:56:13 -04:00
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20200724060632_remove_deprecated_allowlist_settings.rb FIX: use allowlist and blocklist terminology (#10209) 2020-07-27 10:23:54 +10:00
20200728004302_drop_path_whitelist_from_embeddable_hosts.rb FIX: Improve allowed_path column migration (#10321) 2020-07-28 13:31:51 +10:00