rxdb/dist/cjs/hooks.js

A local-first realtime NoSQL Database for JavaScript applications - https://rxdb.info/

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.HOOKS = void 0;
exports._clearHook = _clearHook;
exports.runAsyncPluginHooks = runAsyncPluginHooks;
exports.runPluginHooks = runPluginHooks;
/**
 * hook-functions that can be extended by the plugin
 */
var HOOKS = exports.HOOKS = {
  /**
   * Runs before a plugin is added.
   * Use this to block the usage of non-compatible plugins.
   */
  preAddRxPlugin: [],
  /**
   * functions that run before the database is created
   */
  preCreateRxDatabase: [],
  /**
   * runs after the database is created and prepared
   * but before the instance is returned to the user
   * @async
   */
  createRxDatabase: [],
  preCreateRxCollection: [],
  createRxCollection: [],
  createRxState: [],
  /**
  * runs at the end of the close-process of a collection
  * @async
  */
  postCloseRxCollection: [],
  /**
   * Runs after a collection is removed.
   * @async
   */
  postRemoveRxCollection: [],
  /**
    * functions that get the json-schema as input
    * to do additionally checks/manipulation
    */
  preCreateRxSchema: [],
  /**
   * functions that run after the RxSchema is created
   * gets RxSchema as attribute
   */
  createRxSchema: [],
  prePrepareRxQuery: [],
  preCreateRxQuery: [],
  /**
   * Runs before a query is send to the
   * prepareQuery function of the storage engine.
   */
  prePrepareQuery: [],
  createRxDocument: [],
  /**
   * runs after a RxDocument is created,
   * cannot be async
   */
  postCreateRxDocument: [],
  /**
   * Runs before a RxStorageInstance is created
   * gets the params of createStorageInstance()
   * as attribute so you can manipulate them.
   * Notice that you have to clone stuff before mutating the inputs.
   */
  preCreateRxStorageInstance: [],
  preStorageWrite: [],
  /**
   * runs on the document-data before the document is migrated
   * {
   *   doc: Object, // original doc-data
   *   migrated: // migrated doc-data after run through migration-strategies
   * }
   */
  preMigrateDocument: [],
  /**
   * runs after the migration of a document has been done
   */
  postMigrateDocument: [],
  /**
   * runs at the beginning of the close-process of a database
   */
  preCloseRxDatabase: [],
  /**
   * runs after a database has been removed
   * @async
   */
  postRemoveRxDatabase: [],
  postCleanup: [],
  /**
   * runs before the replication writes the rows to master
   * but before the rows have been modified
   * @async
   */
  preReplicationMasterWrite: [],
  /**
   * runs after the replication has been sent to the server
   * but before the new documents have been handled
   * @async
   */
  preReplicationMasterWriteDocumentsHandle: []
};
function runPluginHooks(hookKey, obj) {
  if (HOOKS[hookKey].length > 0) {
    HOOKS[hookKey].forEach(fun => fun(obj));
  }
}

/**
 * We do intentionally not run the hooks in parallel
 * because that makes stuff unpredictable and we use runAsyncPluginHooks()
 * only in places that are not that relevant for performance.
 */
async function runAsyncPluginHooks(hookKey, obj) {
  for (var fn of HOOKS[hookKey]) {
    await fn(obj);
  }
}

/**
 * used in tests to remove hooks
 */
function _clearHook(type, fun) {
  HOOKS[type] = HOOKS[type].filter(h => h !== fun);
}
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