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feat: use XORM EngineGroup instead of single Engine connection (#7212)

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Resolves #7207

Add new configuration to make XORM work with a main and replicas database instances. The follow configuration parameters were added:

- `HOST_PRIMARY`
- `HOST_REPLICAS`
- `LOAD_BALANCE_POLICY`. Options:
    - `"WeightRandom"` -> `xorm.WeightRandomPolicy`
    - `"WeightRoundRobin`  -> `WeightRoundRobinPolicy`
    - `"LeastCon"` -> `LeastConnPolicy`
    - `"RoundRobin"` -> `xorm.RoundRobinPolicy()`
    - default: `xorm.RandomPolicy()`
- `LOAD_BALANCE_WEIGHTS`

Co-authored-by: pat-s <patrick.schratz@gmail.com@>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/7212
Reviewed-by: Gusted <gusted@noreply.codeberg.org>
Co-authored-by: pat-s <patrick.schratz@gmail.com>
Co-committed-by: pat-s <patrick.schratz@gmail.com>
This commit is contained in:
pat-s 2025-03-30 11:34:02 +00:00 • committed by Gusted
parent a23d0453a3
commit 63a80bf2b9
19 changed files with 463 additions and 129 deletions
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7
tests/integration/db_collation_test.go
View file

@ -16,7 +16,6 @@ import (
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"xorm.io/xorm"
)
type TestCollationTbl struct {
@ -48,11 +47,13 @@ func TestDatabaseCollationSelfCheckUI(t *testing.T) {
}
func TestDatabaseCollation(t *testing.T) {
x := db.GetEngine(db.DefaultContext).(*xorm.Engine)
engine, err := db.GetMasterEngine(db.GetEngine(db.DefaultContext))
require.NoError(t, err)
x := engine
// all created tables should use case-sensitive collation by default
_, _ = x.Exec("DROP TABLE IF EXISTS test_collation_tbl")
err := x.Sync(&TestCollationTbl{})
err = x.Sync(&TestCollationTbl{})
require.NoError(t, err)
_, _ = x.Exec("INSERT INTO test_collation_tbl (txt) VALUES ('main')")
_, _ = x.Exec("INSERT INTO test_collation_tbl (txt) VALUES ('Main')") // case-sensitive, so it inserts a new row