Working
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23
Database.go
23
Database.go
@@ -40,17 +40,32 @@ func writeSnapshotToDb(snapshotSub *SnapshotSubmission) error {
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}
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func getSnapshotRecordsFromDb(rowCount int) ([]*SnapshotRecord, error) {
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records := make([]*SnapshotRecord, rowCount)
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query := fmt.Sprintf("SELECT * FROM `snapshots` ORDER BY `id` DESC LIMIT %v;", rowCount)
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snapshots := make([]*SnapshotRecord, rowCount)
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query := fmt.Sprintf("SELECT `%s`, `%s`, `%s`, `%s`, `%s` FROM `snapshots` ORDER BY `id` DESC LIMIT %v;",
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"id",
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"temp",
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"humidity",
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"co2",
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"time",
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rowCount,
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)
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rows, err := ClimateDb.Query(query)
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if err != nil {
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return nil, err
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}
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for i := 0; rows.Next(); i++ {
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err = rows.Scan(records[i])
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var snapshotRecord SnapshotRecord
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err = rows.Scan(
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snapshotRecord.Id,
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snapshotRecord.Temp,
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snapshotRecord.Humidity,
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snapshotRecord.Co2,
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snapshotRecord.Timestamp,
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)
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if err != nil {
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return nil, err
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}
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snapshots = append(snapshots, &snapshotRecord)
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}
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return records, nil
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return snapshots, nil
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}
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