A way to test if an EntityFilter contains a field #remult

filterContains.ts

/**
 * Checks if a filter contains a specific field
 * @example
 backendPreprocessFilter: async (filter) => {
    // If not specific filter for deletedBy was specified - only show non deleted rows
    if (!filterContains(filter, 'deletedBy')) {
      return {
        ...filter,
        deletedBy: null,
      }
    }
    return filter
  },
 */
export function filterContains<T>(filter: EntityFilter<T>, field: keyof T) {
  for (let key in filter) {
    if (key == field) return true
    if (key === '$and') {
      for (let f of filter[key]!) {
        if (filterContains(f, field)) return true
      }
    }
  }
  return false
}