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seed.js
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seed.js
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// File: seed.js
// Fucntionality: Seed the fake data to the database.
// Data: The data includes the information about influencers: profile info and media data of the user.
const mongoose = require("mongoose"),
mongoosastic = require("mongoosastic"),
Media = require("./models/media"),
User = require("./models/user");
data = require("./scraper/vectors.json");
const media = require("./models/media");
const use = require('@tensorflow-models/universal-sentence-encoder');
mongoose.connect(process.env.MONGO_URI || "mongodb://localhost:27017/e-match",
{ useNewUrlParser: true }
)
mongoose.set('useFindAndModify', false);
mongoose.connection;
//////////////////// *** FUNCTIONS *** /////////////////////////
/**
* Deletes all the entries in the database
* before seeding it with a new dataset.
*/
let deleteAll = () => {
User.deleteMany()
.exec()
.then(() => {
console.log("User data is empty!")
})
Media.deleteMany()
.exec()
.then(() => {
console.log("Media data is empty!")
})
}
/**
* Creates the user and saves it into the DB.
* @param {Object} arr The array of user profiles.
*/
let addUsers = (arr) => {
let data = [];
let usersData = arr.forEach(user => {
let userParams =
{
fullname: user.fullname,
biography: user.biography,
followers_count: user.followers_count,
website: user.website,
interest: user.interest,
specialisation: user.specialisation,
location: user.location,
username: user.username,
unit_vector: user.unit_vector,
role: user.role
}
new User(userParams).save().then(newUser => {
//loop throught media in the given fake data.
let allCaptions = "";
user.latestMedia.forEach(m => {
let mediaParams = {
caption: m.caption,
likes: m.likes,
commentCount: m.commentsCount || typeof m.commentsCount !== 'undefined' ? m.commentsCount : (Math.floor(Math.random() + (300 - 20 + 1) + 20))
}
allCaptions += m.caption + ",";
//create Media
new Media(mediaParams).save().then(media => {
//set the owner of the media
Media.findOneAndUpdate({ _id: media._id }, { $set: { user: newUser } }, { new: true }).then(updatedMedia => {
//push updated media to the array of total media items.
//medias.push(updatedMedia);
User.findOneAndUpdate({ username: newUser.username }, { $addToSet: { latestMedia: updatedMedia } }, { new: true }).then(result => {
}).catch(error => {
console.error(error.message)
});
}).catch(error => {
console.error(error.message)
});
})
})
})
.catch(error => {
console.error(error.message)
});
})
return data;
}
deleteAll()
addUsers(data)