src/database/mongo/sets.js
'use strict';
module.exports = function (module) {
const _ = require('lodash');
const helpers = require('./helpers');
module.setAdd = async function (key, value) {
if (!Array.isArray(value)) {
value = [value];
}
if (!value.length) {
return;
}
value = value.map(v => helpers.valueToString(v));
try {
await module.client.collection('objects').updateOne({
_key: key,
}, {
$addToSet: {
members: {
$each: value,
},
},
}, {
upsert: true,
});
} catch (err) {
if (err && err.message.includes('E11000 duplicate key error')) {
console.log(new Error('e11000').stack, key, value);
return await module.setAdd(key, value);
}
throw err;
}
};
module.setsAdd = async function (keys, value) {
if (!Array.isArray(keys) || !keys.length) {
return;
}
if (!Array.isArray(value)) {
value = [value];
}
value = value.map(v => helpers.valueToString(v));
const bulk = module.client.collection('objects').initializeUnorderedBulkOp();
for (let i = 0; i < keys.length; i += 1) {
bulk.find({ _key: keys[i] }).upsert().updateOne({
$addToSet: {
members: {
$each: value,
},
},
});
}
try {
await bulk.execute();
} catch (err) {
if (err && err.message.includes('E11000 duplicate key error')) {
console.log(new Error('e11000').stack, keys, value);
return await module.setsAdd(keys, value);
}
throw err;
}
};
module.setRemove = async function (key, value) {
if (!Array.isArray(value)) {
value = [value];
}
value = value.map(v => helpers.valueToString(v));
await module.client.collection('objects').updateMany({
_key: Array.isArray(key) ? { $in: key } : key,
}, {
$pullAll: { members: value },
});
};
module.setsRemove = async function (keys, value) {
if (!Array.isArray(keys) || !keys.length) {
return;
}
value = helpers.valueToString(value);
await module.client.collection('objects').updateMany({
_key: { $in: keys },
}, {
$pull: { members: value },
});
};
module.isSetMember = async function (key, value) {
if (!key) {
return false;
}
value = helpers.valueToString(value);
const item = await module.client.collection('objects').findOne({
_key: key, members: value,
}, {
projection: { _id: 0, members: 0 },
});
return item !== null && item !== undefined;
};
module.isSetMembers = async function (key, values) {
if (!key || !Array.isArray(values) || !values.length) {
return [];
}
values = values.map(v => helpers.valueToString(v));
const result = await module.client.collection('objects').findOne({
_key: key,
}, {
projection: { _id: 0, _key: 0 },
});
const membersSet = new Set(result && Array.isArray(result.members) ? result.members : []);
return values.map(v => membersSet.has(v));
};
module.isMemberOfSets = async function (sets, value) {
if (!Array.isArray(sets) || !sets.length) {
return [];
}
value = helpers.valueToString(value);
const result = await module.client.collection('objects').find({
_key: { $in: sets }, members: value,
}, {
projection: { _id: 0, members: 0 },
}).toArray();
const map = {};
result.forEach((item) => {
map[item._key] = true;
});
return sets.map(set => !!map[set]);
};
module.getSetMembers = async function (key) {
if (!key) {
return [];
}
const data = await module.client.collection('objects').findOne({
_key: key,
}, {
projection: { _id: 0, _key: 0 },
});
return data ? data.members : [];
};
module.getSetsMembers = async function (keys) {
if (!Array.isArray(keys) || !keys.length) {
return [];
}
const data = await module.client.collection('objects').find({
_key: { $in: keys },
}, {
projection: { _id: 0 },
}).toArray();
const sets = {};
data.forEach((set) => {
sets[set._key] = set.members || [];
});
return keys.map(k => sets[k] || []);
};
module.setCount = async function (key) {
if (!key) {
return 0;
}
const data = await module.client.collection('objects').aggregate([
{ $match: { _key: key } },
{ $project: { _id: 0, count: { $size: '$members' } } },
]).toArray();
return Array.isArray(data) && data.length ? data[0].count : 0;
};
module.setsCount = async function (keys) {
const data = await module.client.collection('objects').aggregate([
{ $match: { _key: { $in: keys } } },
{ $project: { _id: 0, _key: 1, count: { $size: '$members' } } },
]).toArray();
const map = _.keyBy(data, '_key');
return keys.map(key => (map.hasOwnProperty(key) ? map[key].count : 0));
};
module.setRemoveRandom = async function (key) {
const data = await module.client.collection('objects').findOne({ _key: key });
if (!data) {
return;
}
const randomIndex = Math.floor(Math.random() * data.members.length);
const value = data.members[randomIndex];
await module.setRemove(data._key, value);
return value;
};
};