Class OnConflictBuilder

src/query-builder/on-conflict-builder.ts:23–273

import type { WhereInterface } from './where-interface.js'

export class OnConflictBuilder<
  DB,
  TB extends keyof DB,
> implements WhereInterface<DB, TB> {
  readonly #props: OnConflictBuilderProps

  constructor(props: OnConflictBuilderProps) {
    this.#props = freeze(props)
  }

  /**
   * Specify a single column as the conflict target.
   *
   * Also see the {@link columns}, {@link constraint} and {@link expression}
   * methods for alternative ways to specify the conflict target.
   */
  column(column: AnyColumn<DB, TB>): OnConflictBuilder<DB, TB> {
    const columnNode = ColumnNode.create(column)

    return new OnConflictBuilder({
      ...this.#props,
      onConflictNode: OnConflictNode.cloneWith(this.#props.onConflictNode, {
        columns: this.#props.onConflictNode.columns
          ? freeze([...this.#props.onConflictNode.columns, columnNode])
          : freeze([columnNode]),
      }),
    })
  }

  /**
   * Specify a list of columns as the conflict target.
   *
   * Also see the {@link column}, {@link constraint} and {@link expression}
   * methods for alternative ways to specify the conflict target.
   */
  columns(
    columns: ReadonlyArray<AnyColumn<DB, TB>>,
  ): OnConflictBuilder<DB, TB> {
    const columnNodes = columns.map(ColumnNode.create)

    return new OnConflictBuilder({
      ...this.#props,
      onConflictNode: OnConflictNode.cloneWith(this.#props.onConflictNode, {
        columns: this.#props.onConflictNode.columns
          ? freeze([...this.#props.onConflictNode.columns, ...columnNodes])
          : freeze(columnNodes),
      }),
    })
  }

  /**
   * Specify a specific constraint by name as the conflict target.
   *
   * Also see the {@link column}, {@link columns} and {@link expression}
   * methods for alternative ways to specify the conflict target.
   */
  constraint(constraintName: string): OnConflictBuilder<DB, TB> {
    return new OnConflictBuilder({