とkeyingする必要があります。node.jsに同じ要件が実装されています。 ここで私はコード全体をコピーしています。うまくいけばそれはあなたを助けるかもしれない。
コード
/*
I have used async.water model to create the setting of the index and then searching data as per given parameter. few function is custom so no need to bother about that. read each line patently.
*/
try {
var self = this;
var post = req.body;
var user_id = post.user_id;
var created_mode = post.user_mode == 'requester' ? 'provider' : 'requester';
var kword = post.kword;
var geo = post.geo_loc;
var aroundLatLng = post.aroundLatLng;
var aroundRadius = !cmnFn.empty(post.radious) ? post.radious : 4500;
var hitsPerPage = !cmnFn.empty(post.hitsPerPage) ? post.hitsPerPage : 20;
var offset = !cmnFn.empty(post.offset) ? post.offset : 0;
var length = !cmnFn.empty(post.length) ? post.length : 50;
var budget_from = !cmnFn.empty(post.budget_from) ? post.budget_from : 0;
var budget_to = !cmnFn.empty(post.budget_to) ? post.budget_to : 0;
var day_preference = !cmnFn.empty(post.day_preference) ? post.day_preference : '';
var time_preference = !cmnFn.empty(post.time_preference) ? post.time_preference : '';
var start_date = !cmnFn.empty(post.start_date) ? post.start_date : '';
job_indexはあなたが、あなたの条件が同じで実行するために、フィルタキーを使用する必要があり、その後、ファセット&フィルタを使用している場合Algolia
var job_index = algClient.initIndex('jobs');
var cond = {};
上に作成したインデックスでありますあなたはどこにclouseを使用してSQLで行っている可能性があります
ここ
cond.filters = 'created_mode:"' + created_mode + '" AND (NOT user_id:"' + user_id + '")';
// Query which need to be search
if (!cmnFn.empty(kword)) {
cond.query = !cmnFn.empty(post.kword) ? post.kword : '';
}
if ((!cmnFn.empty(budget_from) && !cmnFn.empty(budget_to)) && budget_from > 0) {
cond.filters += ' AND min_charge: ' + budget_from + ' TO ' + budget_to;
}
if (!cmnFn.empty(day_preference)) {
cond.filters += ' AND day_preference:"' + day_preference + '"';
}
if (!cmnFn.empty(time_preference)) {
cond.filters += ' AND time_preference:"' + time_preference + '"';
}
if (!cmnFn.empty(start_date) && (new Date(start_date)).getTime() > 0) {
cond.filters += ' AND start_date:"' + start_date + '"';
}
私は遠く
/*
Do not fogot one thing, before using geo search, your records must have _geoloc key having following format
"_geoloc": {
"lat": 40.639751,
"lng": -73.778925
}
*/
// Around geo search by given lat lng
if (!cmnFn.empty(aroundLatLng) && !cmnFn.empty(aroundLatLng.lat)) {
cond.aroundLatLng = aroundLatLng.lat + ', ' + aroundLatLng.lng;
if (!cmnFn.empty(aroundRadius) && cond.aroundRadius > 0) {
cond.aroundRadius = aroundRadius;
}
}
// total number of searched record
if (!cmnFn.empty(hitsPerPage)) {
cond.hitsPerPage = hitsPerPage;
}
// Record starting position
if (!cmnFn.empty(offset)) {
cond.offset = offset;
}
// Page Limitation
if (!cmnFn.empty(length)) {
cond.length = length;
}
// Don't show attributesToHighlight in result set
cond.attributesToHighlight = false;
/*
restrictSearchableAttributes: List of object key, where to search in given list defined in searchableAttributes
*/
cond.restrictSearchableAttributes = [
'user_id',
'title',
'description',
'_geoloc'
];
/*
It will return raning info of result when search come under geo search
Following output will return
"_rankingInfo": {
"nbTypos": 0,
"firstMatchedWord": 0,
"proximityDistance": 0,
"userScore": 31,
"geoDistance": 9, // Calculated distance between data geolocation given in _geoloc and search criteria in aroundLatLng
"geoPrecision": 1,
"nbExactWords": 0,
"words": 1,
"filters": 0,
"matchedGeoLocation": {
"lat": 28.5503,
"lng": 77.2501,
"distance": 9
}
}
*/
cond.getRankingInfo = true;
async.waterfall([
function (callback) {
job_index.setSettings({
'attributesForFaceting': ['user_id', 'created_mode', 'min_charge', 'day_preference', 'time_preference', 'start_date'],
/*
searchableAttributes: List of object key , where to search
eg: ['title', 'description']
Like in sql: Where title='your searched text' AND description='your searched text'
_geoloc is reserved keyword of algolia which will used to search geo location
*/
searchableAttributes: [
'title',
'description',
'user_id',
'_geoloc'
],
/*
attributesToRetrieve: Here you can specify list of key name which you want to retrive
eg: ['name','address','age']
Like in sql: Select name, address, age
*/
attributesToRetrieve: [
'*'
]
}).then(() => {
return callback(null, 'success');
});
}
], function (err, results) {
if (err) {
console.log('error: ' + err);
}
job_index.search(cond).then(results => {
if (results.nbHits > 0) {
var rows = new Array();
for (i in results.hits) {
var row = {};
var item = results.hits[i];
var user_info = {};
user_info = item.user_info;
// Get distance and calculate
if (!cmnFn.empty(item._rankingInfo)) {
item.distance = cmnFn.meterToKM(item._rankingInfo['geoDistance']);
} else {
let loc = {
geoLoc_1: { latitude: aroundLatLng.lat, longitude: aroundLatLng.lng },
geoLoc_2: { latitude: item._geoloc.lat, longitude: item._geoloc.lng }
}
cmnFn.getDistance(loc, function (distance) {
item.distance = distance
})
}
/* self.isFav({ user_id: item.user_id, job_id: item.job_id }), function (err, flag) {
item.is_favorite = flag;
}; */
self.isFav({ user_id: item.user_id, job_id: item.job_id }).then(function (flag) {
item.is_favorite = flag;
}, function (err) {
item.is_favorite = false;
});
if (cmnFn.empty(item.currency)) {
item.currency = "₹";
}
//Delete few key from object which does not need to send in response
delete item['user_info'];
delete item['objectID'];
delete item['_geoloc'];
delete item['_rankingInfo'];
row.job_info = item;
row.user_info = user_info;
rows.push(row);
}
info = { status: 1, message: util.format(lang.TOTAL_RECORD_FOUND, results.nbHits), data: rows };
cmnFn.showMsg(res, info);
} else {
info = { status: 0, message: lang.RECORD_NOT_FOUND, data: null };
cmnFn.showMsg(res, info);
}
}).catch(err => {
console.log(err);
info = { status: 0, message: lang.RECORD_NOT_FOUND, data: null };
cmnFn.showMsg(res, info);
});
//res.end('' + JSON.stringify(results));
});
} catch (error) {
info = { status: 0, message: lang.RECORD_NOT_FOUND, data: null };
cmnFn.showMsg(res, info);
}
に最も近いデータを取得するためにaroundLatLngを設定しています私もAlgolia検索ブラウザ自体が、まだノーヒットでそれを試してみました。 – Aldee