| 340 | } |
| 341 | |
| 342 | func (mq *MetadataQuery) prepareQuery(ctx context.Context) error { |
| 343 | for _, inter := range mq.inters { |
| 344 | if inter == nil { |
| 345 | return fmt.Errorf("ent: uninitialized interceptor (forgotten import ent/runtime?)") |
| 346 | } |
| 347 | if trv, ok := inter.(Traverser); ok { |
| 348 | if err := trv.Traverse(ctx, mq); err != nil { |
| 349 | return err |
| 350 | } |
| 351 | } |
| 352 | } |
| 353 | for _, f := range mq.ctx.Fields { |
| 354 | if !metadata.ValidColumn(f) { |
| 355 | return &ValidationError{Name: f, err: fmt.Errorf("ent: invalid field %q for query", f)} |
| 356 | } |
| 357 | } |
| 358 | if mq.path != nil { |
| 359 | prev, err := mq.path(ctx) |
| 360 | if err != nil { |
| 361 | return err |
| 362 | } |
| 363 | mq.sql = prev |
| 364 | } |
| 365 | return nil |
| 366 | } |
| 367 | |
| 368 | func (mq *MetadataQuery) sqlAll(ctx context.Context, hooks ...queryHook) ([]*Metadata, error) { |
| 369 | var ( |