parse
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Parse JavaScript SDK
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JavaScript
"use strict";
var _Object$defineProperty = require("@babel/runtime-corejs3/core-js-stable/object/define-property");
var _interopRequireDefault = require("@babel/runtime-corejs3/helpers/interopRequireDefault");
_Object$defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _defineProperty2 = _interopRequireDefault(require("@babel/runtime-corejs3/helpers/defineProperty"));
var _forEach = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/for-each"));
var _indexOf = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/index-of"));
var _keys = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/object/keys"));
var _slice = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/slice"));
var _map = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/map"));
var _filter = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/filter"));
var _keys2 = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/keys"));
var _concat = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/concat"));
var _includes = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/includes"));
var _sort = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/sort"));
var _splice = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/splice"));
var _promise = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/promise"));
var _find = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/find"));
var _bind = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/instance/bind"));
var _isArray = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/array/is-array"));
var _entries = _interopRequireDefault(require("@babel/runtime-corejs3/core-js-stable/object/entries"));
var _CoreManager = _interopRequireDefault(require("./CoreManager"));
var _encode = _interopRequireDefault(require("./encode"));
var _promiseUtils = require("./promiseUtils");
var _ParseError = _interopRequireDefault(require("./ParseError"));
var _ParseGeoPoint = _interopRequireDefault(require("./ParseGeoPoint"));
var _ParseObject = _interopRequireDefault(require("./ParseObject"));
var _OfflineQuery = _interopRequireDefault(require("./OfflineQuery"));
var _LocalDatastoreUtils = require("./LocalDatastoreUtils");
/**
* Converts a string into a regex that matches it.
* Surrounding with \Q .. \E does this, we just need to escape any \E's in
* the text separately.
*
* @param s
* @private
* @returns {string}
*/
function quote(s) {
return '\\Q' + s.replace('\\E', '\\E\\\\E\\Q') + '\\E';
}
/**
* Extracts the class name from queries. If not all queries have the same
* class name an error will be thrown.
*
* @param queries
* @private
* @returns {string}
*/
function _getClassNameFromQueries(queries) {
let className = null;
(0, _forEach.default)(queries).call(queries, q => {
if (!className) {
className = q.className;
}
if (className !== q.className) {
throw new Error('All queries must be for the same class.');
}
});
return className;
}
/*
* Handles pre-populating the result data of a query with select fields,
* making sure that the data object contains keys for all objects that have
* been requested with a select, so that our cached state updates correctly.
*/
function handleSelectResult(data, select) {
const serverDataMask = {};
(0, _forEach.default)(select).call(select, field => {
const hasSubObjectSelect = (0, _indexOf.default)(field).call(field, '.') !== -1;
if (!hasSubObjectSelect && !Object.hasOwn(data, field)) {
// this field was selected, but is missing from the retrieved data
data[field] = undefined;
} else if (hasSubObjectSelect) {
// this field references a sub-object,
// so we need to walk down the path components
const pathComponents = field.split('.');
let obj = data;
let serverMask = serverDataMask;
(0, _forEach.default)(pathComponents).call(pathComponents, (component, index, arr) => {
// add keys if the expected data is missing
if (obj && !Object.hasOwn(obj, component)) {
obj[component] = undefined;
}
if (obj && typeof obj === 'object') {
obj = obj[component];
}
//add this path component to the server mask so we can fill it in later if needed
if (index < arr.length - 1) {
if (!serverMask[component]) {
serverMask[component] = {};
}
serverMask = serverMask[component];
}
});
}
});
if ((0, _keys.default)(serverDataMask).length > 0) {
// When selecting from sub-objects, we don't want to blow away the missing
// information that we may have retrieved before. We've already added any
// missing selected keys to sub-objects, but we still need to add in the
// data for any previously retrieved sub-objects that were not selected.
const serverData = _CoreManager.default.getObjectStateController().getServerData({
id: data.objectId,
className: data.className
});
copyMissingDataWithMask(serverData, data, serverDataMask, false);
}
}
function copyMissingDataWithMask(src, dest, mask, copyThisLevel) {
//copy missing elements at this level
if (copyThisLevel) {
for (const key in src) {
if (Object.hasOwn(src, key) && !Object.hasOwn(dest, key)) {
dest[key] = src[key];
}
}
}
for (const key in mask) {
if (dest[key] !== undefined && dest[key] !== null && src !== undefined && src !== null) {
//traverse into objects as needed
copyMissingDataWithMask(src[key], dest[key], mask[key], true);
}
}
}
function handleOfflineSort(a, b, sorts) {
let order = sorts[0];
const operator = (0, _slice.default)(order).call(order, 0, 1);
const isDescending = operator === '-';
if (isDescending) {
order = order.substring(1);
}
if (order === '_created_at') {
order = 'createdAt';
}
if (order === '_updated_at') {
order = 'updatedAt';
}
if (!/^[A-Za-z][0-9A-Za-z_]*$/.test(order) || order === 'password') {
throw new _ParseError.default(_ParseError.default.INVALID_KEY_NAME, `Invalid Key: ${order}`);
}
const field1 = a.get(order);
const field2 = b.get(order);
if (field1 < field2) {
return isDescending ? 1 : -1;
}
if (field1 > field2) {
return isDescending ? -1 : 1;
}
if (sorts.length > 1) {
const remainingSorts = (0, _slice.default)(sorts).call(sorts, 1);
return handleOfflineSort(a, b, remainingSorts);
}
return 0;
}
/**
* Creates a new parse Parse.Query for the given Parse.Object subclass.
*
* <p>Parse.Query defines a query that is used to fetch Parse.Objects. The
* most common use case is finding all objects that match a query through the
* <code>find</code> method. for example, this sample code fetches all objects
* of class <code>myclass</code>. it calls a different function depending on
* whether the fetch succeeded or not.
*
* <pre>
* var query = new Parse.Query(myclass);
* query.find().then((results) => {
* // results is an array of parse.object.
* }).catch((error) => {
* // error is an instance of parse.error.
* });</pre></p>
*
* <p>a Parse.Query can also be used to retrieve a single object whose id is
* known, through the get method. for example, this sample code fetches an
* object of class <code>myclass</code> and id <code>myid</code>. it calls a
* different function depending on whether the fetch succeeded or not.
*
* <pre>
* var query = new Parse.Query(myclass);
* query.get(myid).then((object) => {
* // object is an instance of parse.object.
* }).catch((error) => {
* // error is an instance of parse.error.
* });</pre></p>
*
* <p>a Parse.Query can also be used to count the number of objects that match
* the query without retrieving all of those objects. for example, this
* sample code counts the number of objects of the class <code>myclass</code>
* <pre>
* var query = new Parse.Query(myclass);
* query.count().then((number) => {
* // there are number instances of myclass.
* }).catch((error) => {
* // error is an instance of Parse.Error.
* });</pre></p>
*
* @alias Parse.Query
*/
class ParseQuery {
/**
* @param {(string | Parse.Object)} objectClass An instance of a subclass of Parse.Object, or a Parse className string.
*/
constructor(objectClass) {
/**
* @property {string} className
*/
(0, _defineProperty2.default)(this, "className", void 0);
(0, _defineProperty2.default)(this, "_where", void 0);
(0, _defineProperty2.default)(this, "_watch", void 0);
(0, _defineProperty2.default)(this, "_include", void 0);
(0, _defineProperty2.default)(this, "_exclude", void 0);
(0, _defineProperty2.default)(this, "_select", void 0);
(0, _defineProperty2.default)(this, "_limit", void 0);
(0, _defineProperty2.default)(this, "_skip", void 0);
(0, _defineProperty2.default)(this, "_count", void 0);
(0, _defineProperty2.default)(this, "_order", void 0);
(0, _defineProperty2.default)(this, "_readPreference", void 0);
(0, _defineProperty2.default)(this, "_includeReadPreference", void 0);
(0, _defineProperty2.default)(this, "_subqueryReadPreference", void 0);
(0, _defineProperty2.default)(this, "_queriesLocalDatastore", void 0);
(0, _defineProperty2.default)(this, "_localDatastorePinName", void 0);
(0, _defineProperty2.default)(this, "_extraOptions", void 0);
(0, _defineProperty2.default)(this, "_hint", void 0);
(0, _defineProperty2.default)(this, "_explain", void 0);
(0, _defineProperty2.default)(this, "_xhrRequest", void 0);
(0, _defineProperty2.default)(this, "_comment", void 0);
if (typeof objectClass === 'string') {
if (objectClass === 'User' && _CoreManager.default.get('PERFORM_USER_REWRITE')) {
this.className = '_User';
} else {
this.className = objectClass;
}
} else if (objectClass instanceof _ParseObject.default) {
this.className = objectClass.className;
} else if (typeof objectClass === 'function') {
const objClass = objectClass;
if (typeof objClass.className === 'string') {
this.className = objClass.className;
} else {
const obj = new objClass();
this.className = obj.className;
}
} else {
throw new TypeError('A ParseQuery must be constructed with a ParseObject or class name.');
}
this._where = {};
this._watch = [];
this._include = [];
this._exclude = [];
this._count = false;
this._limit = -1; // negative limit is not sent in the server request
this._skip = 0;
this._readPreference = null;
this._includeReadPreference = null;
this._subqueryReadPreference = null;
this._queriesLocalDatastore = false;
this._localDatastorePinName = null;
this._extraOptions = {};
this._xhrRequest = {
task: null,
onchange: () => {}
};
this._comment = null;
}
/**
* Adds constraint that at least one of the passed in queries matches.
*
* @param {Array} queries
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
_orQuery(queries) {
const queryJSON = (0, _map.default)(queries).call(queries, q => {
return q.toJSON().where;
});
this._where.$or = queryJSON;
return this;
}
/**
* Adds constraint that all of the passed in queries match.
*
* @param {Array} queries
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
_andQuery(queries) {
const queryJSON = (0, _map.default)(queries).call(queries, q => {
return q.toJSON().where;
});
this._where.$and = queryJSON;
return this;
}
/**
* Adds constraint that none of the passed in queries match.
*
* @param {Array} queries
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
_norQuery(queries) {
const queryJSON = (0, _map.default)(queries).call(queries, q => {
return q.toJSON().where;
});
this._where.$nor = queryJSON;
return this;
}
/**
* Helper for condition queries
*
* @param key
* @param condition
* @param value
* @returns {Parse.Query}
*/
_addCondition(key, condition, value) {
if (!this._where[key] || typeof this._where[key] === 'string') {
this._where[key] = {};
}
this._where[key][condition] = (0, _encode.default)(value, false, true);
return this;
}
/**
* Converts string for regular expression at the beginning
*
* @param string
* @returns {string}
*/
_regexStartWith(string) {
return '^' + quote(string);
}
async _handleOfflineQuery(params) {
var _context;
_OfflineQuery.default.validateQuery(this);
const localDatastore = _CoreManager.default.getLocalDatastore();
const objects = await localDatastore._serializeObjectsFromPinName(this._localDatastorePinName);
let results = (0, _filter.default)(_context = (0, _map.default)(objects).call(objects, (json, _index, arr) => {
const object = _ParseObject.default.fromJSON(json, false);
if (json._localId && !json.objectId) {
object._localId = json._localId;
}
if (!_OfflineQuery.default.matchesQuery(this.className, object, arr, this)) {
return null;
}
return object;
})).call(_context, object => object !== null);
if ((0, _keys2.default)(params)) {
let keys = (0, _keys2.default)(params).split(',');
keys = (0, _concat.default)(keys).call(keys, ['className', 'objectId', 'createdAt', 'updatedAt', 'ACL']);
results = (0, _map.default)(results).call(results, object => {
var _context2;
const json = object._toFullJSON();
(0, _forEach.default)(_context2 = (0, _keys.default)(json)).call(_context2, key => {
if (!(0, _includes.default)(keys).call(keys, key)) {
delete json[key];
}
});
return _ParseObject.default.fromJSON(json, false);
});
}
if (params.order) {
const sorts = params.order.split(',');
(0, _sort.default)(results).call(results, (a, b) => {
return handleOfflineSort(a, b, sorts);
});
}
let count; // count total before applying limit/skip
if (params.count) {
count = results.length; // total count from response
}
if (params.skip) {
if (params.skip >= results.length) {
results = [];
} else {
results = (0, _splice.default)(results).call(results, params.skip, results.length);
}
}
let limit = results.length;
if (params.limit !== 0 && params.limit < results.length) {
limit = params.limit;
}
results = (0, _splice.default)(results).call(results, 0, limit);
if (typeof count === 'number') {
return {
results,
count
};
}
return results;
}
/**
* Returns a JSON representation of this query.
*
* @returns {object} The JSON representation of the query.
*/
toJSON() {
const params = {
where: this._where
};
if (this._watch.length) {
params.watch = this._watch.join(',');
}
if (this._include.length) {
params.include = this._include.join(',');
}
if (this._exclude.length) {
params.excludeKeys = this._exclude.join(',');
}
if (this._select) {
params.keys = this._select.join(',');
}
if (this._count) {
params.count = 1;
}
if (this._limit >= 0) {
params.limit = this._limit;
}
if (this._skip > 0) {
params.skip = this._skip;
}
if (this._order) {
params.order = this._order.join(',');
}
if (this._readPreference) {
params.readPreference = this._readPreference;
}
if (this._includeReadPreference) {
params.includeReadPreference = this._includeReadPreference;
}
if (this._subqueryReadPreference) {
params.subqueryReadPreference = this._subqueryReadPreference;
}
if (this._hint) {
params.hint = this._hint;
}
if (this._explain) {
params.explain = true;
}
if (this._comment) {
params.comment = this._comment;
}
for (const key in this._extraOptions) {
params[key] = this._extraOptions[key];
}
return params;
}
/**
* Return a query with conditions from json, can be useful to send query from server side to client
* Not static, all query conditions was set before calling this method will be deleted.
* For example on the server side we have
* var query = new Parse.Query("className");
* query.equalTo(key: value);
* query.limit(100);
* ... (others queries)
* Create JSON representation of Query Object
* var jsonFromServer = query.fromJSON();
*
* On client side getting query:
* var query = new Parse.Query("className");
* query.fromJSON(jsonFromServer);
*
* and continue to query...
* query.skip(100).find().then(...);
*
* @param {QueryJSON} json from Parse.Query.toJSON() method
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
withJSON(json) {
if (json.where) {
this._where = json.where;
}
if (json.watch) {
this._watch = json.watch.split(',');
}
if (json.include) {
this._include = json.include.split(',');
}
if ((0, _keys2.default)(json)) {
this._select = (0, _keys2.default)(json).split(',');
}
if (json.excludeKeys) {
this._exclude = json.excludeKeys.split(',');
}
if (json.count) {
this._count = json.count === 1;
}
if (json.limit) {
this._limit = json.limit;
}
if (json.skip) {
this._skip = json.skip;
}
if (json.order) {
this._order = json.order.split(',');
}
if (json.readPreference) {
this._readPreference = json.readPreference;
}
if (json.includeReadPreference) {
this._includeReadPreference = json.includeReadPreference;
}
if (json.subqueryReadPreference) {
this._subqueryReadPreference = json.subqueryReadPreference;
}
if (json.hint) {
this._hint = json.hint;
}
if (json.explain) {
this._explain = !!json.explain;
}
if (json.comment) {
this._comment = json.comment;
}
for (const key in json) {
if (Object.hasOwn(json, key)) {
var _context3;
if ((0, _indexOf.default)(_context3 = ['where', 'include', 'keys', 'count', 'limit', 'skip', 'order', 'readPreference', 'includeReadPreference', 'subqueryReadPreference', 'hint', 'explain', 'comment']).call(_context3, key) === -1) {
this._extraOptions[key] = json[key];
}
}
}
return this;
}
/**
* Static method to restore Parse.Query by json representation
* Internally calling Parse.Query.withJSON
*
* @param {string} className
* @param {QueryJSON} json from Parse.Query.toJSON() method
* @returns {Parse.Query} new created query
*/
static fromJSON(className, json) {
const query = new ParseQuery(className);
return query.withJSON(json);
}
/**
* Constructs a Parse.Object whose id is already known by fetching data from
* the server. Unlike the <code>first</code> method, it never returns undefined.
*
* @param {string} objectId The id of the object to be fetched.
* @param {object} options
* Valid options are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* <li>context: A dictionary that is accessible in Cloud Code `beforeFind` trigger.
* <li>json: Return raw json without converting to Parse.Object
* </ul>
* @returns {Promise} A promise that is resolved with the result when
* the query completes.
*/
get(objectId, options) {
this.equalTo('objectId', objectId);
const firstOptions = _ParseObject.default._getRequestOptions(options);
return this.first(firstOptions).then(response => {
if (response) {
return response;
}
const errorObject = new _ParseError.default(_ParseError.default.OBJECT_NOT_FOUND, 'Object not found.');
return _promise.default.reject(errorObject);
});
}
/**
* Retrieves a list of ParseObjects that satisfy this query.
*
* @param {object} options Valid options
* are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* <li>context: A dictionary that is accessible in Cloud Code `beforeFind` trigger.
* <li>json: Return raw json without converting to Parse.Object
* </ul>
* @returns {Promise} A promise that is resolved with the results when
* the query completes.
*/
find(options) {
const findOptions = _ParseObject.default._getRequestOptions(options);
this._setRequestTask(findOptions);
const controller = _CoreManager.default.getQueryController();
const select = this._select;
if (this._queriesLocalDatastore) {
return this._handleOfflineQuery(this.toJSON());
}
return (0, _find.default)(controller).call(controller, this.className, this.toJSON(), findOptions).then(response => {
var _context4, _context5;
// Return generic object when explain is used
if (this._explain) {
return response.results;
}
const results = ((_context4 = response.results) == null ? void 0 : (0, _bind.default)(_context5 = Function.call).call(_context5, (0, _map.default)(_context4), _context4))?.(data => {
// In cases of relations, the server may send back a className
// on the top level of the payload
const override = response.className || this.className;
if (!data.className) {
data.className = override;
}
// Make sure the data object contains keys for all objects that
// have been requested with a select, so that our cached state
// updates correctly.
if (select) {
handleSelectResult(data, select);
}
if (findOptions.json) {
return data;
} else {
return _ParseObject.default.fromJSON(data, !select);
}
});
const count = response.count;
if (typeof count === 'number') {
return {
results,
count
};
} else {
return results;
}
});
}
/**
* Retrieves a complete list of ParseObjects that satisfy this query.
* Using `eachBatch` under the hood to fetch all the valid objects.
*
* @param {object} options Valid options are:<ul>
* <li>batchSize: How many objects to yield in each batch (default: 100)
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* <li>json: Return raw JSON without converting to Parse.Object.
* </ul>
* @returns {Promise} A promise that is resolved with the results when
* the query completes.
*/
async findAll(options) {
let result = [];
await this.eachBatch(objects => {
result = [...result, ...objects];
}, options);
return result;
}
/**
* Counts the number of objects that match this query.
*
* @param {object} options
* @param {boolean} [options.useMasterKey]
* @param {string} [options.sessionToken]
* Valid options are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* </ul>
* @returns {Promise} A promise that is resolved with the count when
* the query completes.
*/
count(options) {
options = options || {};
const findOptions = _ParseObject.default._getRequestOptions(options);
this._setRequestTask(findOptions);
const controller = _CoreManager.default.getQueryController();
const params = this.toJSON();
params.limit = 0;
params.count = 1;
return (0, _find.default)(controller).call(controller, this.className, params, findOptions).then(result => {
return result.count;
});
}
/**
* Executes a distinct query and returns unique values
*
* @param {string} key A field to find distinct values
* @returns {Promise} A promise that is resolved with the query completes.
*/
distinct(key) {
const distinctOptions = {
useMasterKey: true
};
this._setRequestTask(distinctOptions);
const params = {
distinct: key,
where: this._where,
hint: this._hint
};
const controller = _CoreManager.default.getQueryController();
return controller.aggregate(this.className, params, distinctOptions).then(results => {
return results.results;
});
}
/**
* Executes an aggregate query and returns aggregate results
*
* @param {(Array|object)} pipeline Array or Object of stages to process query
* @returns {Promise} A promise that is resolved with the query completes.
*/
aggregate(pipeline) {
if (!(0, _isArray.default)(pipeline) && typeof pipeline !== 'object') {
throw new Error('Invalid pipeline must be Array or Object');
}
if ((0, _keys.default)(this._where || {}).length) {
if (!(0, _isArray.default)(pipeline)) {
pipeline = [pipeline];
}
pipeline.unshift({
$match: this._where
});
}
const params = {
pipeline,
hint: this._hint,
explain: this._explain,
readPreference: this._readPreference
};
const aggregateOptions = {
useMasterKey: true
};
this._setRequestTask(aggregateOptions);
const controller = _CoreManager.default.getQueryController();
return controller.aggregate(this.className, params, aggregateOptions).then(results => {
return results.results;
});
}
/**
* Retrieves at most one Parse.Object that satisfies this query.
*
* Returns the object if there is one, otherwise undefined.
*
* @param {object} options Valid options are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* <li>context: A dictionary that is accessible in Cloud Code `beforeFind` trigger.
* <li>json: Return raw json without converting to Parse.Object
* </ul>
* @returns {Promise} A promise that is resolved with the object when
* the query completes.
*/
first() {
let options = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
const findOptions = _ParseObject.default._getRequestOptions(options);
this._setRequestTask(findOptions);
const controller = _CoreManager.default.getQueryController();
const params = this.toJSON();
params.limit = 1;
const select = this._select;
if (this._queriesLocalDatastore) {
return this._handleOfflineQuery(params).then(objects => {
if (!objects[0]) {
return undefined;
}
return objects[0];
});
}
return (0, _find.default)(controller).call(controller, this.className, params, findOptions).then(response => {
const objects = response.results;
if (!objects[0]) {
return undefined;
}
if (!objects[0].className) {
objects[0].className = this.className;
}
// Make sure the data object contains keys for all objects that
// have been requested with a select, so that our cached state
// updates correctly.
if (select) {
handleSelectResult(objects[0], select);
}
if (findOptions.json) {
return objects[0];
} else {
return _ParseObject.default.fromJSON(objects[0], !select);
}
});
}
/**
* Iterates over objects matching a query, calling a callback for each batch.
* If the callback returns a promise, the iteration will not continue until
* that promise has been fulfilled. If the callback returns a rejected
* promise, then iteration will stop with that error. The items are processed
* in an unspecified order. The query may not have any sort order, and may
* not use limit or skip.
*
* @param {Function} callback Callback that will be called with each result
* of the query.
* @param {object} options Valid options are:<ul>
* <li>batchSize: How many objects to yield in each batch (default: 100)
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* <li>context: A dictionary that is accessible in Cloud Code `beforeFind` trigger.
* </ul>
* @returns {Promise} A promise that will be fulfilled once the
* iteration has completed.
*/
eachBatch(callback, options) {
options = options || {};
if (this._order || this._skip || this._limit >= 0) {
return _promise.default.reject('Cannot iterate on a query with sort, skip, or limit.');
}
const query = ParseQuery.fromJSON(this.className, this.toJSON());
query.ascending('objectId');
query._limit = options.batchSize || 100;
const findOptions = _ParseObject.default._getRequestOptions(options);
let finished = false;
let previousResults = [];
return (0, _promiseUtils.continueWhile)(() => {
return !finished;
}, async () => {
const [results] = await _promise.default.all([(0, _find.default)(query).call(query, findOptions), _promise.default.resolve(previousResults.length > 0 && callback(previousResults))]);
if (results.length >= query._limit) {
if (findOptions.json) {
query.greaterThan('objectId', results[results.length - 1].objectId);
} else {
query.greaterThan('objectId', results[results.length - 1].id);
}
previousResults = results;
} else if (results.length > 0) {
await _promise.default.resolve(callback(results));
finished = true;
} else {
finished = true;
}
});
}
/**
* Iterates over each result of a query, calling a callback for each one. If
* the callback returns a promise, the iteration will not continue until
* that promise has been fulfilled. If the callback returns a rejected
* promise, then iteration will stop with that error. The items are
* processed in an unspecified order. The query may not have any sort order,
* and may not use limit or skip.
*
* @param {Function} callback Callback that will be called with each result
* of the query.
* @param {object} options Valid options are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* <li>json: Return raw json without converting to Parse.Object
* </ul>
* @returns {Promise} A promise that will be fulfilled once the
* iteration has completed.
*/
each(callback, options) {
return this.eachBatch(results => {
let callbacksDone = _promise.default.resolve();
(0, _forEach.default)(results).call(results, result => {
callbacksDone = callbacksDone.then(() => {
return callback(result);
});
});
return callbacksDone;
}, options);
}
/**
* Adds a hint to force index selection. (https://docs.mongodb.com/manual/reference/operator/meta/hint/)
*
* @param {(string|object)} value String or Object of index that should be used when executing query
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
hint(value) {
if (typeof value === 'undefined') {
delete this._hint;
}
this._hint = value;
return this;
}
/**
* Investigates the query execution plan. Useful for optimizing queries. (https://docs.mongodb.com/manual/reference/operator/meta/explain/)
*
* @param {boolean} explain Used to toggle the information on the query plan.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
explain() {
let explain = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : true;
if (typeof explain !== 'boolean') {
throw new Error('You can only set explain to a boolean value');
}
this._explain = explain;
return this;
}
/**
* Iterates over each result of a query, calling a callback for each one. If
* the callback returns a promise, the iteration will not continue until
* that promise has been fulfilled. If the callback returns a rejected
* promise, then iteration will stop with that error. The items are
* processed in an unspecified order. The query may not have any sort order,
* and may not use limit or skip.
*
* @param {Function} callback Callback <ul>
* <li>currentObject: The current Parse.Object being processed in the array.</li>
* <li>index: The index of the current Parse.Object being processed in the array.</li>
* <li>query: The query map was called upon.</li>
* </ul>
* @param {object} options Valid options are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* </ul>
* @returns {Promise} A promise that will be fulfilled once the
* iteration has completed.
*/
async map(callback, options) {
const array = [];
let index = 0;
await this.each(object => {
return _promise.default.resolve(callback(object, index, this)).then(result => {
array.push(result);
index += 1;
});
}, options);
return array;
}
/**
* Iterates over each result of a query, calling a callback for each one. If
* the callback returns a promise, the iteration will not continue until
* that promise has been fulfilled. If the callback returns a rejected
* promise, then iteration will stop with that error. The items are
* processed in an unspecified order. The query may not have any sort order,
* and may not use limit or skip.
*
* @param {Function} callback Callback <ul>
* <li>accumulator: The accumulator accumulates the callback's return values. It is the accumulated value previously returned in the last invocation of the callback.</li>
* <li>currentObject: The current Parse.Object being processed in the array.</li>
* <li>index: The index of the current Parse.Object being processed in the array.</li>
* </ul>
* @param {*} initialValue A value to use as the first argument to the first call of the callback. If no initialValue is supplied, the first object in the query will be used and skipped.
* @param {object} options Valid options are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* </ul>
* @returns {Promise} A promise that will be fulfilled once the
* iteration has completed.
*/
async reduce(callback, initialValue, options) {
let accumulator = initialValue;
let index = 0;
await this.each(object => {
// If no initial value was given, we take the first object from the query
// as the initial value and don't call the callback with it.
if (index === 0 && initialValue === undefined) {
accumulator = object;
index += 1;
return;
}
return _promise.default.resolve(callback(accumulator, object, index)).then(result => {
accumulator = result;
index += 1;
});
}, options);
if (index === 0 && initialValue === undefined) {
// Match Array.reduce behavior: "Calling reduce() on an empty array
// without an initialValue will throw a TypeError".
throw new TypeError('Reducing empty query result set with no initial value');
}
return accumulator;
}
/**
* Iterates over each result of a query, calling a callback for each one. If
* the callback returns a promise, the iteration will not continue until
* that promise has been fulfilled. If the callback returns a rejected
* promise, then iteration will stop with that error. The items are
* processed in an unspecified order. The query may not have any sort order,
* and may not use limit or skip.
*
* @param {Function} callback Callback <ul>
* <li>currentObject: The current Parse.Object being processed in the array.</li>
* <li>index: The index of the current Parse.Object being processed in the array.</li>
* <li>query: The query filter was called upon.</li>
* </ul>
* @param {object} options Valid options are:<ul>
* <li>useMasterKey: In Cloud Code and Node only, causes the Master Key to
* be used for this request.
* <li>sessionToken: A valid session token, used for making a request on
* behalf of a specific user.
* </ul>
* @returns {Promise} A promise that will be fulfilled once the
* iteration has completed.
*/
async filter(callback, options) {
const array = [];
let index = 0;
await this.each(object => {
return _promise.default.resolve(callback(object, index, this)).then(flag => {
if (flag) {
array.push(object);
}
index += 1;
});
}, options);
return array;
}
/* Query Conditions */
/**
* Adds a constraint to the query that requires a particular key's value to
* be equal to the provided value.
*
* @param {string} key The key to check.
* @param value The value that the Parse.Object must contain.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
equalTo(key, value) {
if (key && typeof key === 'object') {
var _context6;
(0, _forEach.default)(_context6 = (0, _entries.default)(key)).call(_context6, _ref => {
let [k, val] = _ref;
return this.equalTo(k, val);
});
return this;
}
if (typeof value === 'undefined') {
return this.doesNotExist(key);
}
this._where[key] = (0, _encode.default)(value, false, true);
return this;
}
/**
* Adds a constraint to the query that requires a particular key's value to
* be not equal to the provided value.
*
* @param {string} key The key to check.
* @param value The value that must not be equalled.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
notEqualTo(key, value) {
if (key && typeof key === 'object') {
var _context7;
(0, _forEach.default)(_context7 = (0, _entries.default)(key)).call(_context7, _ref2 => {
let [k, val] = _ref2;
return this.notEqualTo(k, val);
});
return this;
}
return this._addCondition(key, '$ne', value);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* be less than the provided value.
*
* @param {string} key The key to check.
* @param value The value that provides an upper bound.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
lessThan(key, value) {
return this._addCondition(key, '$lt', value);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* be greater than the provided value.
*
* @param {string} key The key to check.
* @param value The value that provides an lower bound.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
greaterThan(key, value) {
return this._addCondition(key, '$gt', value);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* be less than or equal to the provided value.
*
* @param {string} key The key to check.
* @param value The value that provides an upper bound.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
lessThanOrEqualTo(key, value) {
return this._addCondition(key, '$lte', value);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* be greater than or equal to the provided value.
*
* @param {string} key The key to check.
* @param {*} value The value that provides an lower bound.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
greaterThanOrEqualTo(key, value) {
return this._addCondition(key, '$gte', value);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* be contained in the provided list of values.
*
* @param {string} key The key to check.
* @param {Array<*>} values The values that will match.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
containedIn(key, values) {
return this._addCondition(key, '$in', values);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* not be contained in the provided list of values.
*
* @param {string} key The key to check.
* @param {Array<*>} values The values that will not match.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
notContainedIn(key, values) {
return this._addCondition(key, '$nin', values);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* be contained by the provided list of values. Get objects where all array elements match.
*
* @param {string} key The key to check.
* @param {Array} values The values that will match.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
containedBy(key, values) {
return this._addCondition(key, '$containedBy', values);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* contain each one of the provided list of values.
*
* @param {string} key The key to check. This key's value must be an array.
* @param {Array} values The values that will match.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
containsAll(key, values) {
return this._addCondition(key, '$all', values);
}
/**
* Adds a constraint to the query that requires a particular key's value to
* contain each one of the provided list of values starting with given strings.
*
* @param {string} key The key to check. This key's value must be an array.
* @param {Array<string>} values The string values that will match as starting string.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
containsAllStartingWith(key, values) {
if (!(0, _isArray.default)(values)) {
values = [values];
}
const regexObject = (0, _map.default)(values).call(values, value => {
return {
$regex: this._regexStartWith(value)
};
});
return this.containsAll(key, regexObject);
}
/**
* Adds a constraint for finding objects that contain the given key.
*
* @param {string} key The key that should exist.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
exists(key) {
return this._addCondition(key, '$exists', true);
}
/**
* Adds a constraint for finding objects that do not contain a given key.
*
* @param {string} key The key that should not exist
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
doesNotExist(key) {
return this._addCondition(key, '$exists', false);
}
/**
* Adds a regular expression constraint for finding string values that match
* the provided regular expression.
* This may be slow for large datasets.
*
* @param {string} key The key that the string to match is stored in.
* @param {RegExp | string} regex The regular expression pattern to match.
* @param {string} modifiers The regular expression mode.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
matches(key, regex, modifiers) {
this._addCondition(key, '$regex', regex);
if (!modifiers) {
modifiers = '';
}
if (typeof regex !== 'string') {
if (regex.ignoreCase) {
modifiers += 'i';
}
if (regex.multiline) {
modifiers += 'm';
}
}
if (modifiers.length) {
this._addCondition(key, '$options', modifiers);
}
return this;
}
/**
* Adds a constraint that requires that a key's value matches a Parse.Query
* constraint.
*
* @param {string} key The key that the contains the object to match the
* query.
* @param {Parse.Query} query The query that should match.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
matchesQuery(key, query) {
const queryJSON = query.toJSON();
queryJSON.className = query.className;
return this._addCondition(key, '$inQuery', queryJSON);
}
/**
* Adds a constraint that requires that a key's value not matches a
* Parse.Query constraint.
*
* @param {string} key The key that the contains the object to match the
* query.
* @param {Parse.Query} query The query that should not match.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
doesNotMatchQuery(key, query) {
const queryJSON = query.toJSON();
queryJSON.className = query.className;
return this._addCondition(key, '$notInQuery', queryJSON);
}
/**
* Adds a constraint that requires that a key's value matches a value in
* an object returned by a different Parse.Query.
*
* @param {string} key The key that contains the value that is being
* matched.
* @param {string} queryKey The key in the objects returned by the query to
* match against.
* @param {Parse.Query} query The query to run.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
matchesKeyInQuery(key, queryKey, query) {
const queryJSON = query.toJSON();
queryJSON.className = query.className;
return this._addCondition(key, '$select', {
key: queryKey,
query: queryJSON
});
}
/**
* Adds a constraint that requires that a key's value not match a value in
* an object returned by a different Parse.Query.
*
* @param {string} key The key that contains the value that is being
* excluded.
* @param {string} queryKey The key in the objects returned by the query to
* match against.
* @param {Parse.Query} query The query to run.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
doesNotMatchKeyInQuery(key, queryKey, query) {
const queryJSON = query.toJSON();
queryJSON.className = query.className;
return this._addCondition(key, '$dontSelect', {
key: queryKey,
query: queryJSON
});
}
/**
* Adds a constraint for finding string values that contain a provided
* string. This may be slow for large datasets.
*
* @param {string} key The key that the string to match is stored in.
* @param {string} substring The substring that the value must contain.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
contains(key, substring) {
if (typeof substring !== 'string') {
throw new Error('The value being searched for must be a string.');
}
return this._addCondition(key, '$regex', quote(substring));
}
/**
* Adds a constraint for finding string values that contain a provided
* string. This may be slow for large datasets. Requires Parse-Server > 2.5.0
*
* In order to sort you must use select and ascending ($score is required)
* <pre>
* query.fullText('field', 'term');
* query.ascending('$score');
* query.select('$score');
* </pre>
*
* To retrieve the weight / rank
* <pre>
* object->get('score');
* </pre>
*
* You can define optionals by providing an object as a third parameter
* <pre>
* query.fullText('field', 'term', { language: 'es', diacriticSensitive: true });
* </pre>
*
* @param {string} key The key that the string to match is stored in.
* @param {string} value The string to search
* @param {object} options (Optional)
* @param {string} options.language The language that determines the list of stop words for the search and the rules for the stemmer and tokenizer.
* @param {boolean} options.caseSensitive A boolean flag to enable or disable case sensitive search.
* @param {boolean} options.diacriticSensitive A boolean flag to enable or disable diacritic sensitive search.
* @returns {Parse.Query} Returns the query, so you can chain this call.
*/
fullText(key, value, options) {
options = options || {};
if (!key) {
throw new Error('A key is required.');
}
if (!value) {
throw new Error('A search term is required');
}
if (typeof value !== 'string') {
throw new Error('The value being searched for must be a string.');
}
const fullOptions