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var buildSearchMethod = require('./buildSearchMethod.js');
var deprecate = require('./deprecate.js');
var deprecatedMessage = require('./deprecatedMessage.js');
module.exports = IndexCore;
/*
* Index class constructor.
* You should not use this method directly but use initIndex() function
*/
function IndexCore(algoliasearch, indexName) {
this.indexName = indexName;
this.as = algoliasearch;
this.typeAheadArgs = null;
this.typeAheadValueOption = null;
// make sure every index instance has it's own cache
this.cache = {};
}
/*
* Clear all queries in cache
*/
IndexCore.prototype.clearCache = function() {
this.cache = {};
};
/*
* Search inside the index using XMLHttpRequest request (Using a POST query to
* minimize number of OPTIONS queries: Cross-Origin Resource Sharing).
*
* @param {string} [query] the full text query
* @param {object} [args] (optional) if set, contains an object with query parameters:
* - page: (integer) Pagination parameter used to select the page to retrieve.
* Page is zero-based and defaults to 0. Thus,
* to retrieve the 10th page you need to set page=9
* - hitsPerPage: (integer) Pagination parameter used to select the number of hits per page. Defaults to 20.
* - attributesToRetrieve: a string that contains the list of object attributes
* you want to retrieve (let you minimize the answer size).
* Attributes are separated with a comma (for example "name,address").
* You can also use an array (for example ["name","address"]).
* By default, all attributes are retrieved. You can also use '*' to retrieve all
* values when an attributesToRetrieve setting is specified for your index.
* - attributesToHighlight: a string that contains the list of attributes you
* want to highlight according to the query.
* Attributes are separated by a comma. You can also use an array (for example ["name","address"]).
* If an attribute has no match for the query, the raw value is returned.
* By default all indexed text attributes are highlighted.
* You can use `*` if you want to highlight all textual attributes.
* Numerical attributes are not highlighted.
* A matchLevel is returned for each highlighted attribute and can contain:
* - full: if all the query terms were found in the attribute,
* - partial: if only some of the query terms were found,
* - none: if none of the query terms were found.
* - attributesToSnippet: a string that contains the list of attributes to snippet alongside
* the number of words to return (syntax is `attributeName:nbWords`).
* Attributes are separated by a comma (Example: attributesToSnippet=name:10,content:10).
* You can also use an array (Example: attributesToSnippet: ['name:10','content:10']).
* By default no snippet is computed.
* - minWordSizefor1Typo: the minimum number of characters in a query word to accept one typo in this word.
* Defaults to 3.
* - minWordSizefor2Typos: the minimum number of characters in a query word
* to accept two typos in this word. Defaults to 7.
* - getRankingInfo: if set to 1, the result hits will contain ranking
* information in _rankingInfo attribute.
* - aroundLatLng: search for entries around a given
* latitude/longitude (specified as two floats separated by a comma).
* For example aroundLatLng=47.316669,5.016670).
* You can specify the maximum distance in meters with the aroundRadius parameter (in meters)
* and the precision for ranking with aroundPrecision
* (for example if you set aroundPrecision=100, two objects that are distant of
* less than 100m will be considered as identical for "geo" ranking parameter).
* At indexing, you should specify geoloc of an object with the _geoloc attribute
* (in the form {"_geoloc":{"lat":48.853409, "lng":2.348800}})
* - insideBoundingBox: search entries inside a given area defined by the two extreme points
* of a rectangle (defined by 4 floats: p1Lat,p1Lng,p2Lat,p2Lng).
* For example insideBoundingBox=47.3165,4.9665,47.3424,5.0201).
* At indexing, you should specify geoloc of an object with the _geoloc attribute
* (in the form {"_geoloc":{"lat":48.853409, "lng":2.348800}})
* - numericFilters: a string that contains the list of numeric filters you want to
* apply separated by a comma.
* The syntax of one filter is `attributeName` followed by `operand` followed by `value`.
* Supported operands are `<`, `<=`, `=`, `>` and `>=`.
* You can have multiple conditions on one attribute like for example numericFilters=price>100,price<1000.
* You can also use an array (for example numericFilters: ["price>100","price<1000"]).
* - tagFilters: filter the query by a set of tags. You can AND tags by separating them by commas.
* To OR tags, you must add parentheses. For example, tags=tag1,(tag2,tag3) means tag1 AND (tag2 OR tag3).
* You can also use an array, for example tagFilters: ["tag1",["tag2","tag3"]]
* means tag1 AND (tag2 OR tag3).
* At indexing, tags should be added in the _tags** attribute
* of objects (for example {"_tags":["tag1","tag2"]}).
* - facetFilters: filter the query by a list of facets.
* Facets are separated by commas and each facet is encoded as `attributeName:value`.
* For example: `facetFilters=category:Book,author:John%20Doe`.
* You can also use an array (for example `["category:Book","author:John%20Doe"]`).
* - facets: List of object attributes that you want to use for faceting.
* Comma separated list: `"category,author"` or array `['category','author']`
* Only attributes that have been added in **attributesForFaceting** index setting
* can be used in this parameter.
* You can also use `*` to perform faceting on all attributes specified in **attributesForFaceting**.
* - queryType: select how the query words are interpreted, it can be one of the following value:
* - prefixAll: all query words are interpreted as prefixes,
* - prefixLast: only the last word is interpreted as a prefix (default behavior),
* - prefixNone: no query word is interpreted as a prefix. This option is not recommended.
* - optionalWords: a string that contains the list of words that should
* be considered as optional when found in the query.
* Comma separated and array are accepted.
* - distinct: If set to 1, enable the distinct feature (disabled by default)
* if the attributeForDistinct index setting is set.
* This feature is similar to the SQL "distinct" keyword: when enabled
* in a query with the distinct=1 parameter,
* all hits containing a duplicate value for the attributeForDistinct attribute are removed from results.
* For example, if the chosen attribute is show_name and several hits have
* the same value for show_name, then only the best
* one is kept and others are removed.
* - restrictSearchableAttributes: List of attributes you want to use for
* textual search (must be a subset of the attributesToIndex index setting)
* either comma separated or as an array
* @param {function} [callback] the result callback called with two arguments:
* error: null or Error('message'). If false, the content contains the error.
* content: the server answer that contains the list of results.
*/
IndexCore.prototype.search = buildSearchMethod('query');
/*
* -- BETA --
* Search a record similar to the query inside the index using XMLHttpRequest request (Using a POST query to
* minimize number of OPTIONS queries: Cross-Origin Resource Sharing).
*
* @param {string} [query] the similar query
* @param {object} [args] (optional) if set, contains an object with query parameters.
* All search parameters are supported (see search function), restrictSearchableAttributes and facetFilters
* are the two most useful to restrict the similar results and get more relevant content
*/
IndexCore.prototype.similarSearch = deprecate(
buildSearchMethod('similarQuery'),
deprecatedMessage(
'index.similarSearch(query[, callback])',
'index.search({ similarQuery: query }[, callback])'
)
);
/*
* Browse index content. The response content will have a `cursor` property that you can use
* to browse subsequent pages for this query. Use `index.browseFrom(cursor)` when you want.
*
* @param {string} query - The full text query
* @param {Object} [queryParameters] - Any search query parameter
* @param {Function} [callback] - The result callback called with two arguments
* error: null or Error('message')
* content: the server answer with the browse result
* @return {Promise|undefined} Returns a promise if no callback given
* @example
* index.browse('cool songs', {
* tagFilters: 'public,comments',
* hitsPerPage: 500
* }, callback);
* @see {@link https://www.algolia.com/doc/rest_api#Browse|Algolia REST API Documentation}
*/
IndexCore.prototype.browse = function(query, queryParameters, callback) {
var merge = require('./merge.js');
var indexObj = this;
var page;
var hitsPerPage;
// we check variadic calls that are not the one defined
// .browse()/.browse(fn)
// => page = 0
if (arguments.length === 0 || arguments.length === 1 && typeof arguments[0] === 'function') {
page = 0;
callback = arguments[0];
query = undefined;
} else if (typeof arguments[0] === 'number') {
// .browse(2)/.browse(2, 10)/.browse(2, fn)/.browse(2, 10, fn)
page = arguments[0];
if (typeof arguments[1] === 'number') {
hitsPerPage = arguments[1];
} else if (typeof arguments[1] === 'function') {
callback = arguments[1];
hitsPerPage = undefined;
}
query = undefined;
queryParameters = undefined;
} else if (typeof arguments[0] === 'object') {
// .browse(queryParameters)/.browse(queryParameters, cb)
if (typeof arguments[1] === 'function') {
callback = arguments[1];
}
queryParameters = arguments[0];
query = undefined;
} else if (typeof arguments[0] === 'string' && typeof arguments[1] === 'function') {
// .browse(query, cb)
callback = arguments[1];
queryParameters = undefined;
}
// otherwise it's a .browse(query)/.browse(query, queryParameters)/.browse(query, queryParameters, cb)
// get search query parameters combining various possible calls
// to .browse();
queryParameters = merge({}, queryParameters || {}, {
page: page,
hitsPerPage: hitsPerPage,
query: query
});
var params = this.as._getSearchParams(queryParameters, '');
return this.as._jsonRequest({
method: 'POST',
url: '/1/indexes/' + encodeURIComponent(indexObj.indexName) + '/browse',
body: {params: params},
hostType: 'read',
callback: callback
});
};
/*
* Continue browsing from a previous position (cursor), obtained via a call to `.browse()`.
*
* @param {string} query - The full text query
* @param {Object} [queryParameters] - Any search query parameter
* @param {Function} [callback] - The result callback called with two arguments
* error: null or Error('message')
* content: the server answer with the browse result
* @return {Promise|undefined} Returns a promise if no callback given
* @example
* index.browseFrom('14lkfsakl32', callback);
* @see {@link https://www.algolia.com/doc/rest_api#Browse|Algolia REST API Documentation}
*/
IndexCore.prototype.browseFrom = function(cursor, callback) {
return this.as._jsonRequest({
method: 'POST',
url: '/1/indexes/' + encodeURIComponent(this.indexName) + '/browse',
body: {cursor: cursor},
hostType: 'read',
callback: callback
});
};
/*
* Search for facet values
* https://www.algolia.com/doc/rest-api/search#search-for-facet-values
*
* @param {string} params.facetName Facet name, name of the attribute to search for values in.
* Must be declared as a facet
* @param {string} params.facetQuery Query for the facet search
* @param {string} [params.*] Any search parameter of Algolia,
* see https://www.algolia.com/doc/api-client/javascript/search#search-parameters
* Pagination is not supported. The page and hitsPerPage parameters will be ignored.
* @param callback (optional)
*/
IndexCore.prototype.searchForFacetValues = function(params, callback) {
var clone = require('./clone.js');
var omit = require('./omit.js');
var usage = 'Usage: index.searchForFacetValues({facetName, facetQuery, ...params}[, callback])';
if (params.facetName === undefined || params.facetQuery === undefined) {
throw new Error(usage);
}
var facetName = params.facetName;
var filteredParams = omit(clone(params), function(keyName) {
return keyName === 'facetName';
});
var searchParameters = this.as._getSearchParams(filteredParams, '');
return this.as._jsonRequest({
method: 'POST',
url: '/1/indexes/' +
encodeURIComponent(this.indexName) + '/facets/' + encodeURIComponent(facetName) + '/query',
hostType: 'read',
body: {params: searchParameters},
callback: callback
});
};
IndexCore.prototype.searchFacet = deprecate(function(params, callback) {
return this.searchForFacetValues(params, callback);
}, deprecatedMessage(
'index.searchFacet(params[, callback])',
'index.searchForFacetValues(params[, callback])'
));
IndexCore.prototype._search = function(params, url, callback, additionalUA) {
return this.as._jsonRequest({
cache: this.cache,
method: 'POST',
url: url || '/1/indexes/' + encodeURIComponent(this.indexName) + '/query',
body: {params: params},
hostType: 'read',
fallback: {
method: 'GET',
url: '/1/indexes/' + encodeURIComponent(this.indexName),
body: {params: params}
},
callback: callback,
additionalUA: additionalUA
});
};
/*
* Get an object from this index
*
* @param objectID the unique identifier of the object to retrieve
* @param attrs (optional) if set, contains the array of attribute names to retrieve
* @param callback (optional) the result callback called with two arguments
* error: null or Error('message')
* content: the object to retrieve or the error message if a failure occurred
*/
IndexCore.prototype.getObject = function(objectID, attrs, callback) {
var indexObj = this;
if (arguments.length === 1 || typeof attrs === 'function') {
callback = attrs;
attrs = undefined;
}
var params = '';
if (attrs !== undefined) {
params = '?attributes=';
for (var i = 0; i < attrs.length; ++i) {
if (i !== 0) {
params += ',';
}
params += attrs[i];
}
}
return this.as._jsonRequest({
method: 'GET',
url: '/1/indexes/' + encodeURIComponent(indexObj.indexName) + '/' + encodeURIComponent(objectID) + params,
hostType: 'read',
callback: callback
});
};
/*
* Get several objects from this index
*
* @param objectIDs the array of unique identifier of objects to retrieve
*/
IndexCore.prototype.getObjects = function(objectIDs, attributesToRetrieve, callback) {
var isArray = require('isarray');
var map = require('./map.js');
var usage = 'Usage: index.getObjects(arrayOfObjectIDs[, callback])';
if (!isArray(objectIDs)) {
throw new Error(usage);
}
var indexObj = this;
if (arguments.length === 1 || typeof attributesToRetrieve === 'function') {
callback = attributesToRetrieve;
attributesToRetrieve = undefined;
}
var body = {
requests: map(objectIDs, function prepareRequest(objectID) {
var request = {
indexName: indexObj.indexName,
objectID: objectID
};
if (attributesToRetrieve) {
request.attributesToRetrieve = attributesToRetrieve.join(',');
}
return request;
})
};
return this.as._jsonRequest({
method: 'POST',
url: '/1/indexes/*/objects',
hostType: 'read',
body: body,
callback: callback
});
};
IndexCore.prototype.as = null;
IndexCore.prototype.indexName = null;
IndexCore.prototype.typeAheadArgs = null;
IndexCore.prototype.typeAheadValueOption = null;