81 lines
1.7 KiB
Go
81 lines
1.7 KiB
Go
// ALR - Any Linux Repository
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// Copyright (C) 2025 The ALR Authors
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//
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <http://www.gnu.org/licenses/>.
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package db
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import (
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"database/sql"
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"database/sql/driver"
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"encoding/json"
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"errors"
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"fmt"
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)
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// JSON represents a JSON value in the database
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type JSON[T any] struct {
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Val T
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}
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// NewJSON creates a new database JSON value
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func NewJSON[T any](v T) JSON[T] {
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return JSON[T]{Val: v}
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}
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func (s *JSON[T]) Scan(val any) error {
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if val == nil {
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return nil
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}
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switch val := val.(type) {
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case string:
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err := json.Unmarshal([]byte(val), &s.Val)
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if err != nil {
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return err
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}
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case sql.NullString:
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if val.Valid {
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err := json.Unmarshal([]byte(val.String), &s.Val)
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if err != nil {
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return err
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}
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}
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default:
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return errors.New("sqlite json types must be strings")
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}
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return nil
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}
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func (s JSON[T]) Value() (driver.Value, error) {
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data, err := json.Marshal(s.Val)
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if err != nil {
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return nil, err
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}
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return string(data), nil
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}
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func (s JSON[T]) MarshalYAML() (any, error) {
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return s.Val, nil
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}
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func (s JSON[T]) String() string {
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return fmt.Sprint(s.Val)
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}
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func (s JSON[T]) GoString() string {
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return fmt.Sprintf("%#v", s.Val)
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}
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