comments for models

models/db.js

@@ -1,7 +1,7 @@
-var Sequelize = require('sequelize');
+var Sequelize = require('sequelize'); //require sequelize package
 
-var DB_URL = process.env.DATABASE_URL || 'postgres://matthuntington@localhost:5432/sedstack';
+var DB_URL = process.env.DATABASE_URL || 'postgres://matthuntington@localhost:5432/sedstack'; //use either environment variable or static url
 
-var db = new Sequelize(DB_URL);
+var db = new Sequelize(DB_URL); //create the connection.  Will not run multiple times, due to require cacheing the file
 
 module.exports = db;

models/run.js

@@ -1,11 +1,11 @@
-var Sequelize = require('sequelize');
+var Sequelize = require('sequelize'); //require sequelize package
-var db = require('./db.js');
+var db = require('./db.js'); //require connection to the db
 
-var Runs = db.define('run', {
+var Runs = db.define('run', { //set up model variables
-	date: Sequelize.DATE,
+	date: Sequelize.DATE, //use date data type
-	distance: Sequelize.FLOAT,
+	distance: Sequelize.FLOAT, //float for distance
 });
 
-db.sync();
+db.sync(); //if table does not exist, create it
 
 module.exports = Runs;

models/users.js

@@ -1,17 +1,17 @@
-var Sequelize = require('sequelize');
+var Sequelize = require('sequelize'); //require sequelize package
-var Runs = require('./run.js');
+var Runs = require('./run.js'); //require our Runs model
-var db = require('./db.js');
+var db = require('./db.js'); //require connection to the DB
 
-var Users = db.define('user', {
+var Users = db.define('user', { //set up model for Users
 	username: {
-		type: Sequelize.STRING,
+		type: Sequelize.STRING, //string data type
-		unique: true
+		unique: true //each value must be unique in the DB
 	},
-	password: Sequelize.STRING
+	password: Sequelize.STRING //string for password
 });
 
-Users.hasMany(Runs, { as: 'Runs' });
+Users.hasMany(Runs, { as: 'Runs' }); //set up the relationship that Users have many runs.  Will create a user_id column in the Runs table
 
-db.sync();
+db.sync(); //if table does not exist yet, create it
 
 module.exports = Users;