fix: make codegen not fail for "blob" columns

- was previously using "[]byte" as a single `ast.NewIdent`, which made comment+blank-line-insertion reparsing fail

pkg/codegen/modelgenerate/generate_model.go

@@ -27,6 +27,33 @@ func SQLFieldsConstIdent(tbl schema.Table) *ast.Ident {
 	return ast.NewIdent(strings.ToLower(tbl.GoTypeName) + "SQLFields")
 }
 
+// GoTypeForColumn returns a type expression for this column.
+//
+// For most columns this isjust its mapped name as a `ast.NewIdent`, but for "blob" it needs
+// a slice expression (`[]byte`).
+func GoTypeForColumn(c schema.Column) ast.Expr {
+	if c.IsNonCodeTableForeignKey() {
+		return ast.NewIdent(schema.TypenameFromTablename(c.ForeignKeyTargetTable) + "ID")
+	}
+	switch c.Type {
+	case "integer", "int":
+		if strings.HasPrefix(c.Name, "is_") || strings.HasPrefix(c.Name, "has_") {
+			return ast.NewIdent("bool")
+		} else if strings.HasSuffix(c.Name, "_at") {
+			return ast.NewIdent("Timestamp")
+		}
+		return ast.NewIdent("int")
+	case "text":
+		return ast.NewIdent("string")
+	case "real":
+		return ast.NewIdent("float32")
+	case "blob":
+		return &ast.ArrayType{Elt: ast.NewIdent("byte")}
+	default:
+		panic("Unrecognized sqlite column type: " + c.Type)
+	}
+}
+
 // ---------------
 // Generators
 // ---------------
@@ -63,10 +90,9 @@ func GenerateModelAST(table schema.Table) *ast.GenDecl {
 					Tag:   &ast.BasicLit{Kind: token.STRING, Value: fmt.Sprintf("`db:\"%s\" json:\"%s\"`", col.Name, col.Name)},
 				})
 			} else {
-				typeName := col.GoTypeName()
 				fields = append(fields, &ast.Field{
 					Names: []*ast.Ident{ast.NewIdent(textutils.SnakeToCamel(col.Name))},
-					Type:  ast.NewIdent(typeName),
+					Type:  GoTypeForColumn(col),
 					Tag:   &ast.BasicLit{Kind: token.STRING, Value: fmt.Sprintf("`db:\"%s\" json:\"%s\"`", col.Name, col.Name)},
 				})
 			}
@@ -183,7 +209,7 @@ func buildFKCheckLambda(tbl schema.Table) (*ast.AssignStmt, bool) {
 														Fun: ast.NewIdent("NewForeignKeyError"),
 														Args: []ast.Expr{
 															&ast.BasicLit{Kind: token.STRING, Value: fmt.Sprintf("%q", structFieldName)},
-															ast.NewIdent(fmt.Sprintf("%q", col.ForeignKeyTargetTable)),
+															&ast.BasicLit{Kind: token.STRING, Value: fmt.Sprintf("%q", col.ForeignKeyTargetTable)},
 															structField,
 														},
 													},
@@ -478,7 +504,7 @@ func GenerateGetItemByUniqColFunc(tbl schema.Table, col schema.Column) *ast.Func
 		Name: ast.NewIdent("Get" + schema.TypenameFromTablename(tbl.TableName) + "By" + col.GoFieldName()),
 		Type: &ast.FuncType{
 			Params: &ast.FieldList{List: []*ast.Field{
-				{Names: []*ast.Ident{param}, Type: ast.NewIdent(col.GoTypeName())},
+				{Names: []*ast.Ident{param}, Type: GoTypeForColumn(col)},
 			}},
 			Results: &ast.FieldList{List: []*ast.Field{
 				{Names: []*ast.Ident{ast.NewIdent("ret")}, Type: ast.NewIdent(tbl.GoTypeName)},