forked from cerc-io/ipld-eth-server
105 lines
3.4 KiB
Go
105 lines
3.4 KiB
Go
package shared
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import (
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"bytes"
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"database/sql"
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"database/sql/driver"
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"fmt"
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"github.com/vulcanize/vulcanizedb/pkg/core"
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"github.com/vulcanize/vulcanizedb/pkg/datastore/postgres"
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)
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type Repository struct{}
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func (_ Repository) MarkHeaderChecked(headerID int64, db *postgres.DB, checkedHeadersColumn string) error {
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_, err := db.Exec(`INSERT INTO public.checked_headers (header_id, `+checkedHeadersColumn+`)
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VALUES ($1, $2)
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ON CONFLICT (header_id) DO
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UPDATE SET `+checkedHeadersColumn+` = $2`, headerID, true)
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return err
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}
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func (_ Repository) MarkHeaderCheckedInTransaction(headerID int64, tx *sql.Tx, checkedHeadersColumn string) error {
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_, err := tx.Exec(`INSERT INTO public.checked_headers (header_id, `+checkedHeadersColumn+`)
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VALUES ($1, $2)
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ON CONFLICT (header_id) DO
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UPDATE SET `+checkedHeadersColumn+` = $2`, headerID, true)
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return err
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}
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// Treats a header as missing if it's not in the headers table, or not checked for some log type
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func (_ Repository) MissingHeaders(startingBlockNumber, endingBlockNumber int64, db *postgres.DB, notCheckedSQL string) ([]core.Header, error) {
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var result []core.Header
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var query string
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var err error
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if endingBlockNumber == -1 {
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query = `SELECT headers.id, headers.block_number, headers.hash FROM headers
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LEFT JOIN checked_headers on headers.id = header_id
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WHERE (header_id ISNULL OR ` + notCheckedSQL + `)
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AND headers.block_number >= $1
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AND headers.eth_node_fingerprint = $2`
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err = db.Select(&result, query, startingBlockNumber, db.Node.ID)
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} else {
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query = `SELECT headers.id, headers.block_number, headers.hash FROM headers
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LEFT JOIN checked_headers on headers.id = header_id
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WHERE (header_id ISNULL OR ` + notCheckedSQL + `)
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AND headers.block_number >= $1
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AND headers.block_number <= $2
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AND headers.eth_node_fingerprint = $3`
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err = db.Select(&result, query, startingBlockNumber, endingBlockNumber, db.Node.ID)
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}
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return result, err
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}
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func (_ Repository) GetCheckedColumnNames(db *postgres.DB) ([]string, error) {
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// Query returns `[]driver.Value`, nullable polymorphic interface
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var queryResult []driver.Value
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columnNamesQuery :=
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`SELECT column_name FROM information_schema.columns
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WHERE table_schema = 'public'
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AND table_name = 'checked_headers'
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AND column_name ~ '_checked';`
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err := db.Select(&queryResult, columnNamesQuery)
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if err != nil {
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return []string{}, err
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}
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// Transform column names from `driver.Value` to strings
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var columnNames []string
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for _, result := range queryResult {
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if columnName, ok := result.(string); ok {
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columnNames = append(columnNames, columnName)
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} else {
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return []string{}, fmt.Errorf("incorrect value for checked_headers column name")
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}
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}
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return columnNames, nil
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}
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// Builds a SQL string that checks if any column value is FALSE, given the column names.
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// Defaults to FALSE when no columns are provided.
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// Ex: ["columnA", "columnB"] => "NOT (columnA AND columnB)"
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// [] => "FALSE"
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func (_ Repository) CreateNotCheckedSQL(boolColumns []string) string {
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var result bytes.Buffer
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if len(boolColumns) == 0 {
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return "FALSE"
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}
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result.WriteString("NOT (")
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// Loop excluding last column name
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for _, column := range boolColumns[:len(boolColumns)-1] {
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result.WriteString(fmt.Sprintf("%v AND ", column))
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}
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// No trailing "OR" for the last column name
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result.WriteString(fmt.Sprintf("%v)", boolColumns[len(boolColumns)-1]))
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return result.String()
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}
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