Changeset 0.29.2 (#197)

Co-authored-by: Jeffrey Smith <jasafpro@gmail.com>
Co-committed-by: Jeffrey Smith <jasafpro@gmail.com>

server/store/postgres/ext_data.go

@@ -0,0 +1,55 @@
+package postgres
+
+import (
+	"context"
+	"database/sql"
+)
+
+// ExtDataStore implements store.ExtDataStore for Postgres.
+type ExtDataStore struct {
+	db *sql.DB
+}
+
+func NewExtDataStore(db *sql.DB) *ExtDataStore {
+	return &ExtDataStore{db: db}
+}
+
+func (s *ExtDataStore) RegisterTable(ctx context.Context, packageID, tableName string) error {
+	_, err := s.db.ExecContext(ctx,
+		`INSERT INTO ext_data_tables (package_id, table_name)
+		 VALUES ($1, $2)
+		 ON CONFLICT (package_id, table_name) DO NOTHING`,
+		packageID, tableName)
+	return err
+}
+
+func (s *ExtDataStore) ListTables(ctx context.Context, packageID string) ([]string, error) {
+	rows, err := s.db.QueryContext(ctx,
+		`SELECT table_name FROM ext_data_tables
+		 WHERE package_id = $1
+		 ORDER BY table_name`,
+		packageID)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var names []string
+	for rows.Next() {
+		var n string
+		if err := rows.Scan(&n); err != nil {
+			return nil, err
+		}
+		names = append(names, n)
+	}
+	if names == nil {
+		names = []string{}
+	}
+	return names, nil
+}
+
+func (s *ExtDataStore) DeletePackageTables(ctx context.Context, packageID string) error {
+	_, err := s.db.ExecContext(ctx,
+		`DELETE FROM ext_data_tables WHERE package_id = $1`, packageID)
+	return err
+}