diff --git a/templates/relationship_to_many_setops.tpl b/templates/relationship_to_many_setops.tpl
index cdfb177..8a127a7 100644
--- a/templates/relationship_to_many_setops.tpl
+++ b/templates/relationship_to_many_setops.tpl
@@ -7,15 +7,16 @@
     {{- if (and .ForeignColumnUnique (not .ToJoinTable)) -}}
 {{- template "relationship_to_one_setops_helper" (textsFromOneToOneRelationship $dot.PkgName $dot.Tables $table .) -}}
     {{- else -}}
-    {{- $rel := textsFromRelationship $dot.Tables $table . -}}
+    {{- $rel := textsFromRelationship $dot.Tables $table .}}
+
 // Add{{$rel.Function.Name}} adds the given related objects to the existing relationships
 // of the {{$table.Name | singular}}, optionally inserting them as new records.
 // Appends related to R.{{$rel.Function.Name}}.
 func (r *{{$rel.LocalTable.NameGo}}Loaded) Add{{$rel.Function.Name}}(exec boil.Executor, insert bool, related ...*{{$rel.ForeignTable.NameGo}}) error {
   return nil
 }
+{{- if .ForeignColumnNullable}}
 
-{{if .ForeignColumnNullable -}}
 // Set{{$rel.Function.Name}} removes all previously related items of the
 // {{$table.Name | singular}} replacing them completely with the passed
 // in related items, optionally inserting them as new records.
@@ -30,7 +31,6 @@ func (r *{{$rel.LocalTable.NameGo}}Loaded) Remove{{$rel.Function.Name}}(exec boi
   return nil
 }
 {{end -}}
-
-{{end -}}{{- /* if unique foreign key */ -}}
+{{- end -}}{{- /* if unique foreign key */ -}}
 {{- end -}}{{- /* range relationships */ -}}
 {{- end -}}{{- /* outer if join table */ -}}
diff --git a/templates/relationship_to_one_setops.tpl b/templates/relationship_to_one_setops.tpl
index e0da4ae..21b54b1 100644
--- a/templates/relationship_to_one_setops.tpl
+++ b/templates/relationship_to_one_setops.tpl
@@ -1,20 +1,26 @@
 {{- define "relationship_to_one_setops_helper" -}}
-{{- $varNameSingular := .ForeignKey.ForeignTable | singular | camelCase -}}
+{{- $varNameSingular := .ForeignKey.ForeignTable | singular | camelCase}}
+
 // Set{{.Function.Name}} of the {{.ForeignKey.Table | singular}} to the related item.
 // Sets R.{{.Function.Name}} to related.
 func (r *{{.LocalTable.NameGo}}Loaded) Set{{.Function.Name}}(exec boil.Executor, insert bool, related *{{.ForeignTable.NameGo}}) error {
-  return nil
-}
+  r.{{.Function.Name}} = related
+  r.{{.Function.Name}}.{{.Function.ForeignAssignment}} = 5
+  if insert {
+    return related.Insert()
+  }
+
+  return exec.Exec(`update "{{.ForeignKey.Table}}" set "{{.ForeignKey.Column}}" = $1`, 5)
+}
+{{- if .ForeignKey.Nullable}}
 
-{{if .ForeignKey.Nullable -}}
 // Remove{{.Function.Name}} relationship.
 // Sets R.{{.Function.Name}} to nil.
 func (r *{{.LocalTable.NameGo}}Loaded) Remove{{.Function.Name}}(exec boil.Executor) error {
   return nil
 }
 {{end -}}
-
-{{end -}}
+{{- end -}}
 {{- if .Table.IsJoinTable -}}
 {{- else -}}
   {{- $dot := . -}}
diff --git a/templates_test/relationship_to_many_setops.tpl b/templates_test/relationship_to_many_setops.tpl
index e69de29..05afbef 100644
--- a/templates_test/relationship_to_many_setops.tpl
+++ b/templates_test/relationship_to_many_setops.tpl
@@ -0,0 +1,24 @@
+{{- if .Table.IsJoinTable -}}
+{{- else -}}
+  {{- $dot := . -}}
+  {{- $table := .Table -}}
+  {{- range .Table.ToManyRelationships -}}
+    {{- $varNameSingular := .ForeignTable | singular | camelCase -}}
+    {{- if (and .ForeignColumnUnique (not .ToJoinTable)) -}}
+{{- template "relationship_to_one_setops_test_helper" (textsFromOneToOneRelationship $dot.PkgName $dot.Tables $table .) -}}
+    {{- else -}}
+    {{- $rel := textsFromRelationship $dot.Tables $table .}}
+
+func test{{$rel.LocalTable.NameGo}}ToManyAddOp{{$rel.Function.Name}}(t *testing.T) {
+}
+{{if .ForeignColumnNullable}}
+
+func test{{$rel.LocalTable.NameGo}}ToManySetOp{{$rel.Function.Name}}(t *testing.T) {
+}
+
+func test{{$rel.LocalTable.NameGo}}ToManyRemoveOp{{$rel.Function.Name}}(t *testing.T) {
+}
+{{end -}}
+{{- end -}}{{- /* if unique foreign key */ -}}
+{{- end -}}{{- /* range relationships */ -}}
+{{- end -}}{{- /* outer if join table */ -}}
diff --git a/templates_test/relationship_to_one_setops.tpl b/templates_test/relationship_to_one_setops.tpl
index e69de29..aff1d1c 100644
--- a/templates_test/relationship_to_one_setops.tpl
+++ b/templates_test/relationship_to_one_setops.tpl
@@ -0,0 +1,19 @@
+{{- define "relationship_to_one_setops_test_helper" -}}
+{{- $varNameSingular := .ForeignKey.ForeignTable | singular | camelCase -}}
+func test{{.LocalTable.NameGo}}ToOneSetOp{{.ForeignTable.NameGo}}_{{.Function.Name}}(t *testing.T) {
+}
+{{- if .ForeignKey.Nullable}}
+
+func test{{.LocalTable.NameGo}}ToOneRemoveOp{{.ForeignTable.NameGo}}_{{.Function.Name}}(t *testing.T) {
+}
+{{end -}}
+{{- end -}}
+{{- if .Table.IsJoinTable -}}
+{{- else -}}
+  {{- $dot := . -}}
+  {{- range .Table.FKeys -}}
+    {{- $rel := textsFromForeignKey $dot.PkgName $dot.Tables $dot.Table .}}
+
+{{template "relationship_to_one_setops_test_helper" $rel -}}
+{{- end -}}
+{{- end -}}