ra-core/src/util/getMutationMode.ts

Core components of react-admin, a frontend Framework for building admin applications on top of REST services, using ES6, React

export const getMutationMode = (mutationMode, undoable) => {
    if (mutationMode) {
        return mutationMode;
    }
    switch (undoable) {
        case true:
            return 'undoable';
        case false:
            return 'pessimistic';
        default:
            return 'undoable';
    }
};