greeneclipse
8580c996c3
Drop one-shot tmp/axe scripts and agent i18n scratch so the Gitea tree is deployable.
77 lines
1.8 KiB
Go
77 lines
1.8 KiB
Go
package main
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import (
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"context"
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"database/sql"
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"fmt"
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"strings"
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)
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// mysqlCol returns a quoted column name if present, otherwise a SQL literal/expression fallback.
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func mysqlCol(ctx context.Context, db *sql.DB, table, column, fallbackExpr string) string {
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if mysqlColumnExists(ctx, db, table, column) {
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q, err := quoteMySQLIdent(column)
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if err != nil {
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return fallbackExpr
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}
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return q
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}
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return fallbackExpr
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}
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// mysqlCoalesce returns COALESCE(column, fallback) when column exists, else fallback alone.
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func mysqlCoalesce(ctx context.Context, db *sql.DB, table, column, fallbackExpr string) string {
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if mysqlColumnExists(ctx, db, table, column) {
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q, err := quoteMySQLIdent(column)
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if err != nil {
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return fallbackExpr
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}
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return fmt.Sprintf("COALESCE(%s, %s)", q, fallbackExpr)
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}
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return fallbackExpr
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}
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// mysqlSelectList builds "SELECT a, b, ..." from expressions (already resolved).
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func mysqlSelectList(exprs ...string) string {
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return "SELECT " + strings.Join(exprs, ", ")
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}
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// scanIntish scans MySQL INT/DECIMAL/string numeric values into an int.
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func scanIntish(v any) int {
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switch x := v.(type) {
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case int64:
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return int(x)
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case int32:
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return int(x)
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case float64:
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return int(x)
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case []byte:
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var n float64
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if _, err := fmt.Sscanf(string(x), "%f", &n); err == nil {
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return int(n)
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}
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case string:
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var n float64
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if _, err := fmt.Sscanf(x, "%f", &n); err == nil {
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return int(n)
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}
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}
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return 0
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}
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// queryFirstOK tries queries in order until one succeeds (for column-shape fallbacks).
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func queryFirstOK(ctx context.Context, db *sql.DB, queries ...string) (*sql.Rows, error) {
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var last error
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for _, q := range queries {
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rows, err := db.QueryContext(ctx, q)
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if err == nil {
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return rows, nil
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}
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last = err
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}
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if last == nil {
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return nil, fmt.Errorf("no queries provided")
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}
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return nil, last
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}
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