create db_build.js & fix db_build.sql

Relates #8

Src/Database/db_build.js

@@ -0,0 +1,10 @@
+const fs = require('fs');
+const dbConnection = require('./db_connection');
+
+const sql = fs.readFileSync(`${__dirname}/db_build.sql`).toString();
+
+dbConnection.query(sql, (err, res) => {
+    if (err) throw err;
+    console.log('Database created');
+    dbConnection.end();
+})

Src/Database/db_build.sql

@@ -6,7 +6,7 @@ CREATE TABLE users (
     id SERIAL PRIMARY KEY,
     username VARCHAR(100) NOT NULL,
     password CHAR(64) NOT NULL,
-    member_since TIMESTAMPTZ NOT NULL NOW()
+    member_since TIMESTAMPTZ NOT NULL DEFAULT NOW()
 );
 
 CREATE TABLE destinations (
@@ -17,10 +17,8 @@ CREATE TABLE destinations (
 
 CREATE TABLE comments (
     comment TEXT NOT NULL,
-    userid INT,
-    destid INT,
-    FOREIGN KEY destid REFERENCES destinations(id),
-    FOREIGN KEY userid REFERENCES users(id),
+    userid INTEGER REFERENCES users(id),
+    destid INTEGER REFERENCES destinations(id),
     PRIMARY KEY (userid, destid) 
 );
 

package.json

@@ -4,7 +4,8 @@
   "description": "A web app where you can write a comment on a place you have visited",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "build-db": "node Src/Database/db_build.js"
   },
   "repository": {
     "type": "git",