field `%s` wrong rel_through value `%s` cannot find table

Error message

field `%s` wrong rel_through value `%s` cannot find table

What it means

Error "field `%s` wrong rel_through value `%s` cannot find table" thrown in beego/beego.

Source

Thrown at client/orm/internal/models/models.go:140

					elm = elm.Elem()
				}
				// check the rel or reverse model already Register
				name := GetFullName(elm)
				mii, ok := mc.GetByFullName(name)
				if !ok || mii.Pkg != elm.PkgPath() {
					err = fmt.Errorf("can not find rel in field `%s`, `%s` may be miss Register", fi.FullName, elm.String())
					goto end
				}
				fi.RelModelInfo = mii

				switch fi.FieldType {
				case RelManyToMany:
					if fi.RelThrough != "" {
						if i := strings.LastIndex(fi.RelThrough, "."); i != -1 && len(fi.RelThrough) > (i+1) {
							pn := fi.RelThrough[:i]
							rmi, ok := mc.GetByFullName(fi.RelThrough)
							if !ok || pn != rmi.Pkg {
								err = fmt.Errorf("field `%s` wrong rel_through value `%s` cannot find table", fi.FullName, fi.RelThrough)
								goto end
							}
							fi.RelThroughModelInfo = rmi
							fi.RelTable = rmi.Table
						} else {
							err = fmt.Errorf("field `%s` wrong rel_through value `%s`", fi.FullName, fi.RelThrough)
							goto end
						}
					} else {
						i := NewM2MModelInfo(mi, mii)
						if fi.RelTable != "" {
							i.Table = fi.RelTable
						}
						if v := mc.Set(i.Table, i); v != nil {
							err = fmt.Errorf("the rel table name `%s` already registered, cannot be use, please change one", fi.RelTable)
							goto end
						}
						fi.RelTable = i.Table

View on GitHub (pinned to 939cfde380)

When it happens

Trigger: Thrown at client/orm/internal/models/models.go:140 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of beego/beego@939cfde380 (2026-08-15). Data as JSON: /api/errors/e57b36b5f86e34dd. Report an issue: GitHub.