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[GITEA] Avoid WHERE IN for comment migration query

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- Rewrite `UpdateCommentsMigrationsByType` to not use `WHERE IN` as
that's a performance diaster for MariaDB, it now use batching to query
the the relevant comment IDs via JOINs (which is not possible in a
UPDATE query for SQLite) and then update them in a seperate query.
- Add unit test.
- Resolves https://codeberg.org/forgejo/forgejo/issues/1856

(cherry picked from commit 8098ca9d2e)

Conflicts:
	models/issues/comment.go
	https://codeberg.org/forgejo/forgejo/pulls/2075
This commit is contained in:
Gusted 2023-12-17 16:39:58 +01:00 committed by Earl Warren
parent c89e0735fa
commit ca65deba1c
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1 changed files with 27 additions and 0 deletions
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27
models/issues/comment_test.go
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@ -12,6 +12,7 @@ import (
repo_model "code.gitea.io/gitea/models/repo"
"code.gitea.io/gitea/models/unittest"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/structs"
"github.com/stretchr/testify/assert"
)
@ -97,3 +98,29 @@ func TestMigrate_InsertIssueComments(t *testing.T) {
unittest.CheckConsistencyFor(t, &issues_model.Issue{})
}
func TestUpdateCommentsMigrationsByType(t *testing.T) {
assert.NoError(t, unittest.PrepareTestDatabase())
issue := unittest.AssertExistsAndLoadBean(t, &issues_model.Issue{ID: 1})
repo := unittest.AssertExistsAndLoadBean(t, &repo_model.Repository{ID: issue.RepoID})
comment := unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{ID: 1, IssueID: issue.ID})
// Set repository to migrated from Gitea.
repo.OriginalServiceType = structs.GiteaService
repo_model.UpdateRepositoryCols(db.DefaultContext, repo, "original_service_type")
// Set comment to have an original author.
comment.OriginalAuthor = "Example User"
comment.OriginalAuthorID = 1
comment.PosterID = 0
_, err := db.GetEngine(db.DefaultContext).ID(comment.ID).Cols("original_author", "original_author_id", "poster_id").Update(comment)
assert.NoError(t, err)
assert.NoError(t, issues_model.UpdateCommentsMigrationsByType(db.DefaultContext, structs.GiteaService, "1", 513))
comment = unittest.AssertExistsAndLoadBean(t, &issues_model.Comment{ID: 1, IssueID: issue.ID})
assert.Empty(t, comment.OriginalAuthor)
assert.Empty(t, comment.OriginalAuthorID)
assert.EqualValues(t, 513, comment.PosterID)
}