property ApplyChangesetOptions.onConflict

A function that determines how to handle conflicts. The function receives one argument, which can be one of the following values:

• SQLITE_CHANGESET_DATA: A DELETE or UPDATE change does not contain the expected "before" values.
• SQLITE_CHANGESET_NOTFOUND: A row matching the primary key of the DELETE or UPDATE change does not exist.
• SQLITE_CHANGESET_CONFLICT: An INSERT change results in a duplicate primary key.
• SQLITE_CHANGESET_FOREIGN_KEY: Applying a change would result in a foreign key violation.
• SQLITE_CHANGESET_CONSTRAINT: Applying a change results in a UNIQUE, CHECK, or NOT NULL constraint violation.

The function should return one of the following values:

• SQLITE_CHANGESET_OMIT: Omit conflicting changes.
• SQLITE_CHANGESET_REPLACE: Replace existing values with conflicting changes (only valid with SQLITE_CHANGESET_DATA or SQLITE_CHANGESET_CONFLICT conflicts).
• SQLITE_CHANGESET_ABORT: Abort on conflict and roll back the database.

When an error is thrown in the conflict handler or when any other value is returned from the handler, applying the changeset is aborted and the database is rolled back.

Default: A function that returns SQLITE_CHANGESET_ABORT.