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[WEB MAD DE] Lara Morgana #245

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[WEB MAD DE] Lara Morgana #245

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218 changes: 218 additions & 0 deletions starter-code/main.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,218 @@
const MongoDB = require("mongodb");
const mongoClient = MongoDB.MongoClient;
const clear = require("clear");
const readline = require("readline");
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});

const url = `mongodb://localhost:27017/crunchbase`;

mongoClient.connect(url, (error, db) => {
if (error) {
console.log("Error trying to connect to the Database");
console.log(error);
} else {
console.log("Connection established correctly!! 😬");

function mainMenu() {
clear();
printMenu();
rl.question("Type an option: ", (option) => {
switch (option) {
case "1":
//Listar todas las compañías por nombre
db.collection("companies")
.find({}, { name: 1, _id: 0 })
.toArray((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
case "2":
//Contar todas las compañías
db.collection("companies")
.find({}, { name: 1, _id: 0 })
.count((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
case "3":
//Contar todas las compañías por nombre fundadas en el 2004
db.collection("companies")
.find(
{ "funding_rounds.founded_year": 2004 },
{ name: 1, _id: 0 }
)
.count((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
case "4":
db.collection("companies")
.find(
{ $and: [{ founded_year: 2004 }, { founded_month: 2 }] },
{ name: 1, _id: 0 }
)
.toArray((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
case "5":
db.collection("companies")
.find(
{
$and: [
{ founded_year: 2004 },
{
$or: [
{ founded_month: 4 },
{ founded_month: 5 },
{ founded_month: 6 },
],
},
],
},
{ name: 1, _id: 0 }
)
.count((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
case "6":
db.collection("companies")
.find({ "offices.city": "Barcelona" }, { name: 1, _id: 0 })
.toArray((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
case "7":
db.collection("companies")
.find(
{ number_of_employees: { $gt: 0 } },
{ name: 1, _id: 0, number_of_employees: 1 }
)
.sort({ number_of_employees: -1 })
.limit(10)
.toArray((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
case "8":
db.collection("companies")
.find({ name: "Facebook" }, { name: 1, _id: 0 })
.toArray((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
} else {
console.log(result);
rl.question(`\nType enter to continue: `, (answer) => {
mainMenu();
});
}
});
break;
}
});
}

mainMenu();
}
});

function printMenu() {
console.log(`
0.- Exit
1.- List by name all companies.
2.- How many companies are there?
3.- How many companies were founded in 2004?
4.- List by name all companies founded in february of 2004.
5.- List by name all companies founded in the summer of 2004 (april to june) sorted by date.
6.- What companies have offices in "Barcelona".
7.- List the 10 companies with more employees sorted ascending (show name and employees).
8.- Find the company with the name "Facebook"
9.- How many employees has Facebook?
10.- List the name of all the products of Facebook
11.- List the people that are working at Facebook right now (check relationships field)
12.- How many people are not working anymore at Facebook
13.- List all the companies where "david-ebersman" has worked.
14.- List by name the competitors of Facebook
15.- Names of the companies that has "social-networking" in tag-list (be aware that the value of field is a string check regex operators)
16.- How many companies that has "social-network" in tag-list and founded between 2002 and 2016 inclusive
17.- Names and locations of companies that have offices in London
18.- How many companies that has "social-network" in tag-list and founded between 2002 and 2016 inclusive and has offices in New York
`);
}