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[WEB-MAD DE] Cynthia Elizabeth Gorosito #232

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271 changes: 271 additions & 0 deletions main.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,271 @@
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!! 😬');

}
});

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":
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":
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":
db.collection('companies').find({founded_year: 2004}).count((error, counter) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => { mainMenu() });
} else {
console.log(counter);
rl.question(`\nType enter to continue: `, (answer) => { mainMenu() });
}
})
break;
case "4":
db.collection('companies').find({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({founded_year: 2004,$and: [{ founded_month: { $gte: 4 } }, { founded_month: { $lte: 6 } }] },{name: 1, _id: 0}).toArray((error, counter) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => { mainMenu() });
} else {
console.log(counter);
rl.question(`\nType enter to continue: `, (answer) => { mainMenu() });
}
})
break;
case "6":
db.collection('companies').find({"offices.city": { $in: ["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({},{name: 1,number_of_employees: 1, _id: 0}).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"}).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 "9":
db.collection('companies').find({name:"Facebook"},{number_of_employees: 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 "10":

@ta-web-mad ta-web-mad Sep 8, 2020

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Te faltó acceder a la primera posición del array resultante de la query, tal que así:

else {
                console.log(result[0]);

db.collection('companies').find({name: "Facebook"}, {name: 1,"products": 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 "11":
db.collection('companies').find({name: "Facebook","relationships.is_past": false}, {"relationships.person.last_name": 1, _id: 0}).toArray((error, result) => {
if (error) {
console.log(error);
rl.question(`\nType enter to continue: `, (answer) => { mainMenu() });
} else {
console.log(result);

@ta-web-mad ta-web-mad Sep 8, 2020

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Fíjate que el resultado que te muestra la consola es un array de objetos, al igual que en la 10, debes primero acceder a la primera posición del array y luego a la propiedad que te interese mostrar, por ejemplo:

console.log(result[0].relationships);

rl.question(`\nType enter to continue: `, (answer) => { mainMenu() });
}
})
break;
case "12":
db.collection('companies').find({name: "Facebook","relationships.is_past": true}).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 "13":
db.collection('companies').find({"relationships.person.permalink":"david-ebersman" }, {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 "14":
db.collection('companies').find({name: "Facebook"}, {"competitions.competitor.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 "15":
db.collection('companies').find({tag_list:/social-network/},{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 "16":
db.collection('companies').find({tag_list:/social-network/, $and: [{ founded_year: { $gte: 2002 } }, { founded_year: { $lte: 2016 } }]}).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 "17":
db.collection('companies').find({"offices.city": { $in: ["London"] }}, {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 "18":
db.collection('companies').find({tag_list:/social-network/, $and: [{ founded_year: { $gte: 2002 } }, { founded_year: { $lte: 2016 } }],"offices.city": { $in: ["New York"] }}).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 "0":
console.log(`👋👋👋👋 😞 \n`);
db.close((error) => { process.exit(0) });
break;
default:
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
`);
}

118 changes: 118 additions & 0 deletions package-lock.json
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