* First pass at adding comment trees.
- Extracted comment replies into its own table.
- Added ltree column to comment
- Added parent_id param to GetComments to fetch a tree branch
- No paging / limiting yet
* Adding child_count to comment_aggregates.
* Adding parent comment update counts
* Fix unit tests.
* Comment tree paging mostly done.
* Fix clippy
* Fix drone tests wrong postgres version.
* Fix unit tests.
* Add back in delete in unit test.
* Add postgres upgrade script.
* Fixing some PR comments.
* Move update ltree into Comment::create
* Updating based on comments.
* Fix send soft fail.
* Use URL type in most outstanding struct fields
This fixes all known remaining cases where url fields are stored as
plain strings, with the exception of form fields where empty strings
are used as sentinels (see `diesel_option_overwrite_to_url`).
Tested for regressions in the federated docker setup attempting to
exercise all changed fields, including through apub federation.
Fixes#1385
* Add migration to fix blank-string post.url values to be null
This also then fixes#602
* Address review feedback
- Fixed some unwraps and err message formatting
- Bumped the `url` library to 2.2.1 to fix a bug with serde error
messages
- Add unit tests for the two diesel option override functions
- Fix migration teardown by adding a no-op
* Rename lemmy_db_queries::Url to lemmy_db_queries::DbUrl
* fix compile error
* box PostOrComment variants
Dessalines