feat: delete constraint for belongs to and has one

relationsCheck/constraints.go

@@ -8,7 +8,7 @@ import (
 
 func CheckCascadeDelete(pass *analysis.Pass, field common.Field) bool {
 	if !field.Tags.HasParam("constraint") {
-		pass.Reportf(field.Pos, "field %s should have a constraint", field.Name)
+		pass.Reportf(field.Pos, "field %s should have a delete constraint", field.Name)
 		return true
 	}
 	constraintValue := field.Tags.GetParam("constraint").Value

relationsCheck/relationsCheck.go

@@ -123,8 +123,14 @@ func CheckOneToMany(pass *analysis.Pass, models map[string]common.Model) {
 			if !foundOneToMany {
 				if foundBelongsTo {
 					fmt.Printf("`%s` belongs `%s`\n", *baseType, model.Name)
+					if CheckCascadeDelete(pass, field) {
+						return
+					}
 				} else if hasOne {
 					fmt.Printf("`%s` has one `%s` \n", model.Name, relatedModel.Name)
+					if CheckCascadeDelete(pass, field) {
+						return
+					}
 				} else {
 					pass.Reportf(field.Pos, "Invalid relation in field `%s`", field.Name)
 				}

tests/testdata/src/relations_check/negative.go

@@ -66,7 +66,7 @@ type ShoppingCart struct {
 
 type Hotel struct {
 	Id     uint `gorm:"primaryKey"`
-	Office
+	Office      // want "field Office should have a delete constraint"
 }
 
 type Office struct {

tests/testdata/src/relations_check/positive.go

@@ -45,7 +45,7 @@ type Owner struct {
 	Id        uint `gorm:"primaryKey"`
 	Name      string
 	CompanyId int
-	Company   Company
+	Company   Company `gorm:"constraint:OnDelete:CASCADE;"`
 }
 
 type Company struct {