codegen: CreateUpdateDelete test no longer creates an "Update" block if there's no updateable fields

pkg/codegen/modelgenerate/generate_model.go

@@ -296,9 +296,8 @@ func GenerateSaveItemFunc(tbl schema.Table) *ast.FuncDecl {
 	updatePairs := make([]string, 0, len(tbl.Columns))
 
 	hasCreatedAt, hasUpdatedAt := tbl.HasAutoTimestamps()
-	hasSoftDelete := tbl.HasSoftDelete()
 
-	// Assemble data for building SQL "insert" and "update" strings
+	// Assemble SQL "insert" string
 	for _, col := range tbl.Columns {
 		if col.Name == "rowid" {
 			continue
@@ -309,23 +308,20 @@ func GenerateSaveItemFunc(tbl schema.Table) *ast.FuncDecl {
 			val = fmt.Sprintf("nullif(%s, 0)", val)
 		}
 		insertVals = append(insertVals, val)
-		// created_at should not be updated after creation
-		if col.Name == "created_at" && hasCreatedAt {
-			continue
-		}
-		// Soft-delete state is managed by SoftDeleteXyz(), not by updates
-		if hasSoftDelete && (col.Name == "is_deleted" || col.Name == "deleted_at") {
-			continue
-		}
-		if !col.IsPrimaryKey { // Don't try to update primary key columns (mainly for w/o rowid tables)
-			updatePairs = append(updatePairs, col.Name+"="+val)
-		}
 	}
 	insertStmt := fmt.Sprintf("\n\t\t    insert into %s (%s)\n\t\t         values (%s)\n\t\t",
 		tbl.TableName,
 		strings.Join(insertCols, ", "),
 		strings.Join(insertVals, ", "),
 	)
+	// ...and "update" string
+	for _, col := range tbl.GetUpdateableColumns() {
+		val := ":" + col.Name
+		if col.IsNullableForeignKey() {
+			val = fmt.Sprintf("nullif(%s, 0)", val)
+		}
+		updatePairs = append(updatePairs, col.Name+"="+val)
+	}
 	updateStmt := fmt.Sprintf("\n\t\t    update %s\n\t\t       set %s\n\t\t     where rowid = :rowid\n\t\t",
 		tbl.TableName,
 		strings.Join(updatePairs, ",\n\t\t           "),