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fixed version number when migration is down #112

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fixed version number when migration is down #112

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8 changes: 5 additions & 3 deletions collection.go
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Original file line number Diff line number Diff line change
Expand Up @@ -559,7 +559,7 @@ func (c *Collection) runUp(db DB, tx *pg.Tx, m *Migration) (int64, error) {
})
}

func (c *Collection) runDown(db DB, tx *pg.Tx, m *Migration) (int64, error) {
func (c *Collection) runDown(db DB, tx *pg.Tx, m *Migration, newVersion int64) (int64, error) {
if m.DownTx {
db = tx
}
Expand All @@ -570,7 +570,7 @@ func (c *Collection) runDown(db DB, tx *pg.Tx, m *Migration) (int64, error) {
return 0, err
}
}
return m.Version - 1, nil
return newVersion, nil
})
}

Expand All @@ -591,8 +591,10 @@ func (c *Collection) down(db DB, tx *pg.Tx, migrations []*Migration, oldVersion
}

var m *Migration
var newVersion int64
for i := len(migrations) - 1; i >= 0; i-- {
mm := migrations[i]
newVersion = migrations[i-1].Version // get the version of migration to one more -1
if mm.Version <= oldVersion {
m = mm
break
Expand All @@ -602,7 +604,7 @@ func (c *Collection) down(db DB, tx *pg.Tx, migrations []*Migration, oldVersion
if m == nil {
return oldVersion, nil
}
return c.runDown(db, tx, m)
return c.runDown(db, tx, m, newVersion)
}

func (c *Collection) schemaExists(db DB) (bool, error) {
Expand Down