5a986aa8fd
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- Wrap DELETE + INSERTs in a database transaction via new ReplaceEnvVarsByAppID() to prevent silent data loss on partial insert failure. Rollback on any error; return 500 instead of 200. - Add server-side validation rejecting entries with empty keys (returns 400 with error message). - Add frontend error handling for non-2xx responses with user-visible alert messages. - Remove stale //nolint:dupl directives (files no longer duplicate).
139 lines
2.7 KiB
Go
139 lines
2.7 KiB
Go
package models
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import (
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"context"
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"database/sql"
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"errors"
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"fmt"
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"sneak.berlin/go/upaas/internal/database"
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)
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// Label represents a Docker label for an app container.
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type Label struct {
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db *database.Database
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ID int64
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AppID string
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Key string
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Value string
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}
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// NewLabel creates a new Label with a database reference.
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func NewLabel(db *database.Database) *Label {
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return &Label{db: db}
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}
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// Save inserts or updates the label in the database.
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func (l *Label) Save(ctx context.Context) error {
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if l.ID == 0 {
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return l.insert(ctx)
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}
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return l.update(ctx)
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}
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// Delete removes the label from the database.
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func (l *Label) Delete(ctx context.Context) error {
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_, err := l.db.Exec(ctx, "DELETE FROM app_labels WHERE id = ?", l.ID)
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return err
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}
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func (l *Label) insert(ctx context.Context) error {
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query := "INSERT INTO app_labels (app_id, key, value) VALUES (?, ?, ?)"
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result, err := l.db.Exec(ctx, query, l.AppID, l.Key, l.Value)
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if err != nil {
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return err
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}
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id, err := result.LastInsertId()
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if err != nil {
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return err
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}
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l.ID = id
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return nil
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}
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func (l *Label) update(ctx context.Context) error {
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query := "UPDATE app_labels SET key = ?, value = ? WHERE id = ?"
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_, err := l.db.Exec(ctx, query, l.Key, l.Value, l.ID)
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return err
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}
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// FindLabel finds a label by ID.
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//
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//nolint:nilnil // returning nil,nil is idiomatic for "not found" in Active Record
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func FindLabel(
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ctx context.Context,
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db *database.Database,
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id int64,
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) (*Label, error) {
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label := NewLabel(db)
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row := db.QueryRow(ctx,
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"SELECT id, app_id, key, value FROM app_labels WHERE id = ?",
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id,
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)
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err := row.Scan(&label.ID, &label.AppID, &label.Key, &label.Value)
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if err != nil {
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if errors.Is(err, sql.ErrNoRows) {
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return nil, nil
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}
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return nil, fmt.Errorf("scanning label: %w", err)
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}
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return label, nil
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}
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// FindLabelsByAppID finds all labels for an app.
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func FindLabelsByAppID(
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ctx context.Context,
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db *database.Database,
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appID string,
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) ([]*Label, error) {
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query := `
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SELECT id, app_id, key, value FROM app_labels
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WHERE app_id = ? ORDER BY key`
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rows, err := db.Query(ctx, query, appID)
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if err != nil {
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return nil, fmt.Errorf("querying labels by app: %w", err)
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}
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defer func() { _ = rows.Close() }()
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var labels []*Label
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for rows.Next() {
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label := NewLabel(db)
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scanErr := rows.Scan(&label.ID, &label.AppID, &label.Key, &label.Value)
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if scanErr != nil {
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return nil, scanErr
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}
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labels = append(labels, label)
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}
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return labels, rows.Err()
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}
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// DeleteLabelsByAppID deletes all labels for an app.
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func DeleteLabelsByAppID(
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ctx context.Context,
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db *database.Database,
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appID string,
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) error {
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_, err := db.Exec(ctx, "DELETE FROM app_labels WHERE app_id = ?", appID)
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return err
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}
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