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38 lines
787 B
38 lines
787 B
package database |
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import ( |
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"bytes" |
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"github.com/dgraph-io/badger/v4" |
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"lol.mleku.dev/chk" |
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"next.orly.dev/pkg/database/indexes" |
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"next.orly.dev/pkg/database/indexes/types" |
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"next.orly.dev/pkg/encoders/event" |
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) |
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func (d *D) FetchEventBySerial(ser *types.Uint40) (ev *event.E, err error) { |
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if err = d.View( |
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func(txn *badger.Txn) (err error) { |
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buf := new(bytes.Buffer) |
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if err = indexes.EventEnc(ser).MarshalWrite(buf); chk.E(err) { |
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return |
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} |
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var item *badger.Item |
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if item, err = txn.Get(buf.Bytes()); err != nil { |
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return |
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} |
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var v []byte |
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if v, err = item.ValueCopy(nil); chk.E(err) { |
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return |
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} |
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ev = new(event.E) |
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if err = ev.UnmarshalBinary(bytes.NewBuffer(v)); chk.E(err) { |
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return |
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} |
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return |
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}, |
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); err != nil { |
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return |
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} |
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return |
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}
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