Dongfeng Gu

Dongfeng Gu

Member Since October 25, 2015

12,281

Total Points

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Skills & Experience

  • Company

    University of Ottawa

144 Achievements

  • Achievement

    Password Resets and Testing

    User Authentication with Rails

    Achieved

    Sep 10, 2016

    Password Resets and Testing
  • Achievement

    Adding a Model Attribute

    Ruby on Rails 5 Basics

    Achieved

    Sep 7, 2016

    Adding a Model Attribute
  • Achievement

    Using the Rails Console

    Ruby on Rails 5 Basics

    Achieved

    Sep 7, 2016

    Using the Rails Console
  • Achievement

    Getting the REST You Need

    REST API Basics

    Achieved

    Sep 5, 2016

    Getting the REST You Need
  • Achievement

    Handling Rails Requests

    Ruby on Rails 5 Basics

    Achieved

    Aug 30, 2016

    Handling Rails Requests
  • Achievement

    Covering Your Bases

    Python Testing

    Achieved

    Aug 29, 2016

    Covering Your Bases
  • Achievement

    Creating Rails Apps

    Ruby on Rails 5 Basics

    Achieved

    Aug 28, 2016

    Creating Rails Apps
  • Achievement

    Be Assertive!

    Python Testing

    Achieved

    Aug 23, 2016

    Be Assertive!
  • Achievement

    Adding User Support to Our Application

    User Authentication with Rails

    Achieved

    Aug 19, 2016

    Adding User Support to Our Application
  • Achievement

    What Is Testing?

    Python Testing

    Achieved

    Aug 19, 2016

    What Is Testing?
  • Achievement

    Gettin' CRUD-y With It

    Using Databases in Python

    Achieved

    Aug 17, 2016

    Gettin' CRUD-y With It
  • Achievement

    Our Diary App

    Using Databases in Python

    Achieved

    Aug 16, 2016

    Our Diary App
  • Achievement

    Meet Peewee

    Using Databases in Python

    Achieved

    Aug 15, 2016

    Meet Peewee
  • Achievement

    Python Regular Expressions

    Regular Expressions in Python

    Achieved

    Aug 13, 2016

    Python Regular Expressions
  • Achievement

    Timezones

    Dates and Times in Python (2014)

    Achieved

    Aug 9, 2016

    Timezones
  • Achievement

    Password Hashing and Sign-In

    User Authentication with Rails

    Achieved

    Aug 8, 2016

    Password Hashing and Sign-In
  • Achievement

    Math Quiz App

    Dates and Times in Python (2014)

    Achieved

    Aug 8, 2016

    Math Quiz App
  • Achievement

    Dates and Times

    Dates and Times in Python (2014)

    Achieved

    Aug 7, 2016

    Dates and Times
  • Achievement

    Buggy Logs

    Write Better Python

    Achieved

    Aug 6, 2016

    Buggy Logs
  • Achievement

    Cleaner Code

    Write Better Python

    Achieved

    Aug 6, 2016

    Cleaner Code
  • Achievement

    Hack-n-Slash

    Object-Oriented Python (retired)

    Achieved

    Aug 4, 2016

    Hack-n-Slash
  • Achievement

    Python Inheritance

    Object-Oriented Python (retired)

    Achieved

    Aug 3, 2016

    Python Inheritance
  • Achievement

    AR Extensions

    ActiveRecord Basics

    Achieved

    Aug 2, 2016

    AR Extensions
  • Achievement

    Python Objects

    Object-Oriented Python (retired)

    Achieved

    Aug 2, 2016

    Python Objects
  • Achievement

    Dungeon Game

    Python Collections (Retired)

    Achieved

    Jul 31, 2016

    Dungeon Game
  • Achievement

    Tuples

    Python Collections (Retired)

    Achieved

    Jul 30, 2016

    Tuples
  • Achievement

    Callbacks

    ActiveRecord Basics

    Achieved

    Jul 29, 2016

    Callbacks
  • Achievement

    Dictionaries

    Python Collections (Retired)

    Achieved

    Jul 29, 2016

    Dictionaries
  • Achievement

    Query Interface

    ActiveRecord Basics

    Achieved

    Jul 28, 2016

    Query Interface
  • Achievement

    Slices

    Python Collections (Retired)

    Achieved

    Jul 28, 2016

    Slices
  • Achievement

    Lists Redux

    Python Collections (Retired)

    Achieved

    Jul 27, 2016

    Lists Redux
  • Achievement

    Letter Game App

    Python Basics (2015)

    Achieved

    Jul 26, 2016

    Letter Game App
  • Achievement

    Number Game App

    Python Basics (2015)

    Achieved

    Jul 25, 2016

    Number Game App
  • Achievement

    Shopping List App

    Python Basics (2015)

    Achieved

    Jul 24, 2016

    Shopping List App
  • Achievement

    Logic in Python

    Python Basics (2015)

    Achieved

    Jul 24, 2016

    Logic in Python
  • Achievement

    Python Data Types

    Python Basics (2015)

    Achieved

    Jul 21, 2016

    Python Data Types
  • Achievement

    Python For Beginners

    Python Basics (2015)

    Achieved

    Jul 20, 2016

    Python For Beginners
  • Achievement

    Validation

    ActiveRecord Basics

    Achieved

    Jul 14, 2016

    Validation
  • Achievement

    Migrations and Relationships

    ActiveRecord Basics

    Achieved

    Jul 12, 2016

    Migrations and Relationships
  • Achievement

    Introduction to ActiveRecord

    ActiveRecord Basics

    Achieved

    Jul 10, 2016

    Introduction to ActiveRecord
  • Achievement

    Securing and Maintaining a MySQL Database

    Database Foundations

    Achieved

    Jul 10, 2016

    Securing and Maintaining a MySQL Database
  • Achievement

    SQL Calculating, Aggregating and Other Functions

    Database Foundations

    Achieved

    Jul 8, 2016

    SQL Calculating, Aggregating and Other Functions
  • Achievement

    Joining Relational Data Between Tables in SQL

    Database Foundations

    Achieved

    Jul 7, 2016

    Joining Relational Data Between Tables in SQL
  • Achievement

    Manipulating Schema with SQL

    Database Foundations

    Achieved

    Jul 6, 2016

    Manipulating Schema with SQL
  • Achievement

    Creating Tables and Manipulating Data with SQL

    Database Foundations

    Achieved

    Jul 5, 2016

    Creating Tables and Manipulating Data with SQL
  • Achievement

    Reading Data from Databases with SQL

    Database Foundations

    Achieved

    Jul 3, 2016

    Reading Data from Databases with SQL
  • Achievement

    Installing MySQL Server and MySQL Workbench

    Database Foundations

    Achieved

    Jun 29, 2016

    Installing MySQL Server and MySQL Workbench
  • Achievement

    Introduction to Data, Databases and SQL

    Database Foundations

    Achieved

    Jun 28, 2016

    Introduction to Data, Databases and SQL
  • Achievement

    Workflows

    Git Basics

    Achieved

    Jun 22, 2016

    Workflows
  • Achievement

    Working With Remote Repositories

    Git Basics

    Achieved

    Jun 22, 2016

    Working With Remote Repositories
  • Achievement

    Merging

    Git Basics

    Achieved

    Jun 22, 2016

    Merging
  • Achievement

    Branches

    Git Basics

    Achieved

    Jun 22, 2016

    Branches
  • Achievement

    Build a Todo List Application with Rails 4

    Build a Todo List Application with Rails 4

    Achieved

    Jun 22, 2016

    Build a Todo List Application with Rails 4
  • Achievement

    Getting Started With Git

    Git Basics

    Achieved

    Jun 18, 2016

    Getting Started With Git
  • Achievement

    Installing a Ruby Development Environment

    Installing a Ruby Development Environment

    Achieved

    Jun 7, 2016

    Installing a Ruby Development Environment
  • Achievement

    Why Version Control Matters

    Git Basics

    Achieved

    Jun 6, 2016

    Why Version Control Matters
  • Achievement

    Installing Programs

    Console Foundations

    Achieved

    Jun 5, 2016

    Installing Programs
  • Achievement

    Environment and Redirection

    Console Foundations

    Achieved

    Jun 2, 2016

    Environment and Redirection
  • Achievement

    Console Processes

    Console Foundations

    Achieved

    Jun 1, 2016

    Console Processes
  • Achievement

    Console Users and Permission

    Console Foundations

    Achieved

    May 31, 2016

    Console Users and Permission
  • Achievement

    Moving Around in the Console

    Console Foundations

    Achieved

    May 30, 2016

    Moving Around in the Console
  • Achievement

    Ruby Methods

    Ruby Basics (Retired)

    Achieved

    May 30, 2016

    Ruby Methods
  • Achievement

    Ruby Numbers (Ruby Basics)

    Ruby Basics (Retired)

    Achieved

    May 29, 2016

    Ruby Numbers (Ruby Basics)
  • Achievement

    Ruby Strings (Ruby Basics)

    Ruby Basics (Retired)

    Achieved

    May 27, 2016

    Ruby Strings (Ruby Basics)
  • Achievement

    How Ruby Works

    Ruby Basics (Retired)

    Achieved

    May 26, 2016

    How Ruby Works
  • Achievement

    Harnessing the Power of Objects

    Java Objects (Retired)

    Achieved

    May 25, 2016

    Harnessing the Power of Objects
  • Achievement

    Improving Our Todo App

    AngularJS Basics (1.x)

    Achieved

    May 21, 2016

    Improving Our Todo App
  • Achievement

    Services in Angular

    AngularJS Basics (1.x)

    Achieved

    May 17, 2016

    Services in Angular
  • Achievement

    Using Angular's Built-in Directives

    AngularJS Basics (1.x)

    Achieved

    May 14, 2016

    Using Angular's Built-in Directives
  • Achievement

    Controllers and Scope

    AngularJS Basics (1.x)

    Achieved

    May 12, 2016

    Controllers and Scope
  • Achievement

    Getting Started with Angular

    AngularJS Basics (1.x)

    Achieved

    May 7, 2016

    Getting Started with Angular
  • Achievement

    Improving your Gulp Workflow

    Gulp Basics

    Achieved

    May 5, 2016

    Improving your Gulp Workflow
  • Achievement

    Compile Sass with Gulp

    Gulp Basics

    Achieved

    May 3, 2016

    Compile Sass with Gulp
  • Achievement

    Gulp your JavaScript workflow!

    Gulp Basics

    Achieved

    May 1, 2016

    Gulp your JavaScript workflow!
  • Achievement

    Welcome to Gulp.js

    Gulp Basics

    Achieved

    May 1, 2016

    Welcome to Gulp.js
  • Achievement

    Introducing jQuery Plugins

    Using jQuery Plugins

    Achieved

    Feb 24, 2016

    Introducing jQuery Plugins
  • Achievement

    Creating a Simple Drawing Application

    jQuery Basics (2014)

    Achieved

    Feb 18, 2016

    Creating a Simple Drawing Application
  • Achievement

    Creating a Password Confirmation Form

    jQuery Basics (2014)

    Achieved

    Feb 13, 2016

    Creating a Password Confirmation Form
  • Achievement

    Creating a Mobile Drop Down Menu

    jQuery Basics (2014)

    Achieved

    Feb 13, 2016

    Creating a Mobile Drop Down Menu
  • Achievement

    Meet Objects

    Java Objects (Retired)

    Achieved

    Feb 9, 2016

    Meet Objects
  • Achievement

    Creating a Simple Lightbox

    jQuery Basics (2014)

    Achieved

    Feb 8, 2016

    Creating a Simple Lightbox
  • Achievement

    Using your New Tools

    Java Basics

    Achieved

    Feb 7, 2016

    Using your New Tools
  • Achievement

    Perfecting the Prototype

    Java Basics

    Achieved

    Feb 7, 2016

    Perfecting the Prototype
  • Achievement

    Getting Started with Java

    Java Basics

    Achieved

    Feb 6, 2016

    Getting Started with Java
  • Achievement

    Creating a Spoiler Revealer

    jQuery Basics (2014)

    Achieved

    Feb 5, 2016

    Creating a Spoiler Revealer
  • Achievement

    Introduction to jQuery

    jQuery Basics (2014)

    Achieved

    Feb 4, 2016

    Introduction to jQuery
  • Achievement

    Doing More with Express

    Express Basics (2015)

    Achieved

    Feb 1, 2016

    Doing More with Express
  • Achievement

    Serving Static Files in Express

    Express Basics (2015)

    Achieved

    Jan 28, 2016

    Serving Static Files in Express
  • Achievement

    Using Templates with Express

    Express Basics (2015)

    Achieved

    Jan 28, 2016

    Using Templates with Express
  • Achievement

    The Request and Response Objects in Express

    Express Basics (2015)

    Achieved

    Jan 23, 2016

    The Request and Response Objects in Express
  • Achievement

    Developing Express Apps Like a Boss

    Express Basics (2015)

    Achieved

    Jan 22, 2016

    Developing Express Apps Like a Boss
  • Achievement

    Getting Started with Express

    Express Basics (2015)

    Achieved

    Jan 18, 2016

    Getting Started with Express
  • Achievement

    Updating and Uninstalling Packages with npm

    npm Basics (retiring)

    Achieved

    Jan 14, 2016

    Updating and Uninstalling Packages with npm
  • Achievement

    Installing Packages with npm

    npm Basics (retiring)

    Achieved

    Jan 12, 2016

    Installing Packages with npm
  • Achievement

    What is npm?

    npm Basics (retiring)

    Achieved

    Jan 12, 2016

    What is npm?
  • Achievement

    HTTP Methods and Headers

    Build a Simple Dynamic Site with Node.js

    Achieved

    Jan 10, 2016

    HTTP Methods and Headers
  • Achievement

    Creating a Basic Template Engine in Node.js

    Build a Simple Dynamic Site with Node.js

    Achieved

    Jan 10, 2016

    Creating a Basic Template Engine in Node.js
  • Achievement

    Handling Routes in Node.js

    Build a Simple Dynamic Site with Node.js

    Achieved

    Jan 7, 2016

    Handling Routes in Node.js
  • Achievement

    Creating a Simple Server in Node.js

    Build a Simple Dynamic Site with Node.js

    Achieved

    Jan 7, 2016

    Creating a Simple Server in Node.js
  • Achievement

    Building a Command Line Application

    Node.js Basics (2014)

    Achieved

    Jan 6, 2016

    Building a Command Line Application
  • Achievement

    Traversing and Manipulating the DOM with JavaScript

    Interactive Web Pages with JavaScript

    Achieved

    Jan 5, 2016

    Traversing and Manipulating the DOM with JavaScript
  • Achievement

    Selecting Elements and Adding Events with JavaScript

    Interactive Web Pages with JavaScript

    Achieved

    Jan 3, 2016

    Selecting Elements and Adding Events with JavaScript
  • Achievement

    JavaScript and the DOM

    Interactive Web Pages with JavaScript

    Achieved

    Jan 3, 2016

    JavaScript and the DOM
  • Achievement

    Quiz Practice Project

    Object-Oriented JavaScript (2015)

    Achieved

    Jan 2, 2016

    Quiz Practice Project
  • Achievement

    Prototypal Inheritance

    Object-Oriented JavaScript (2015)

    Achieved

    Jan 1, 2016

    Prototypal Inheritance
  • Achievement

    Constructor Functions & Prototypes

    Object-Oriented JavaScript (2015)

    Achieved

    Dec 31, 2015

    Constructor Functions & Prototypes
  • Achievement

    Introduction to Methods

    Object-Oriented JavaScript (2015)

    Achieved

    Dec 31, 2015

    Introduction to Methods
  • Achievement

    JavaScript Objects

    JavaScript Loops, Arrays and Objects

    Achieved

    Dec 31, 2015

    JavaScript Objects
  • Achievement

    JavaScript Arrays

    JavaScript Loops, Arrays and Objects

    Achieved

    Dec 30, 2015

    JavaScript Arrays
  • Achievement

    JavaScript Loops

    JavaScript Loops, Arrays and Objects

    Achieved

    Dec 27, 2015

    JavaScript Loops
  • Achievement

    JavaScript Functions

    JavaScript Basics (Retired)

    Achieved

    Dec 24, 2015

    JavaScript Functions
  • Achievement

    JavaScript Conditional Statements

    JavaScript Basics (Retired)

    Achieved

    Dec 23, 2015

    JavaScript Conditional Statements
  • Achievement

    JavaScript Numbers

    JavaScript Basics (Retired)

    Achieved

    Dec 21, 2015

    JavaScript Numbers
  • Achievement

    JavaScript Variables

    JavaScript Basics (Retired)

    Achieved

    Dec 18, 2015

    JavaScript Variables
  • Achievement

    Introducing JavaScript

    JavaScript Basics (Retired)

    Achieved

    Dec 14, 2015

    Introducing JavaScript
  • Achievement

    Fundamental Concepts

    CSS Basics (2014)

    Achieved

    Dec 9, 2015

    Fundamental Concepts
  • Achievement

    Designing with the Latest Features

    CSS Basics (2014)

    Achieved

    Dec 8, 2015

    Designing with the Latest Features
  • Achievement

    Introduction to Node.js

    Node.js Basics (2014)

    Achieved

    Dec 5, 2015

    Introduction to Node.js
  • Achievement

    Basic Layout

    CSS Basics (2014)

    Achieved

    Dec 2, 2015

    Basic Layout
  • Achievement

    The Box Model

    CSS Basics (2014)

    Achieved

    Nov 27, 2015

    The Box Model
  • Achievement

    Understanding Values and Units

    CSS Basics (2014)

    Achieved

    Nov 24, 2015

    Understanding Values and Units
  • Achievement

    Basic Selectors

    CSS Basics (2014)

    Achieved

    Nov 20, 2015

    Basic Selectors
  • Achievement

    Getting Started with CSS

    CSS Basics (2014)

    Achieved

    Nov 19, 2015

    Getting Started with CSS
  • Achievement

    Debugging HTML and CSS Problems

    How to Make a Website

    Achieved

    Nov 17, 2015

    Debugging HTML and CSS Problems
  • Achievement

    Sharing a Website

    How to Make a Website

    Achieved

    Nov 16, 2015

    Sharing a Website
  • Achievement

    Responsive Web Design and Testing

    How to Make a Website

    Achieved

    Nov 15, 2015

    Responsive Web Design and Testing
  • Achievement

    Adding Pages to a Website

    How to Make a Website

    Achieved

    Nov 13, 2015

    Adding Pages to a Website
  • Achievement

    Styling Web Pages and Navigation

    How to Make a Website

    Achieved

    Nov 10, 2015

    Styling Web Pages and Navigation
  • Achievement

    Design Foundations Final

    Design Foundations

    Achieved

    Nov 9, 2015

    Design Foundations Final
  • Achievement

    Becoming a Problem Solver

    Design Foundations

    Achieved

    Nov 9, 2015

    Becoming a Problem Solver
  • Achievement

    Customizing Colors and Fonts

    How to Make a Website

    Achieved

    Nov 9, 2015

    Customizing Colors and Fonts
  • Achievement

    CSS: Cascading Style Sheets

    How to Make a Website

    Achieved

    Nov 8, 2015

    CSS: Cascading Style Sheets
  • Achievement

    Understanding Aesthetics

    Design Foundations

    Achieved

    Nov 5, 2015

    Understanding Aesthetics
  • Achievement

    Creating HTML Content

    How to Make a Website

    Achieved

    Nov 5, 2015

    Creating HTML Content
  • Achievement

    HTML First

    How to Make a Website

    Achieved

    Nov 3, 2015

    HTML First
  • Achievement

    Introduction to Design

    Design Foundations

    Achieved

    Nov 3, 2015

    Introduction to Design
  • Achievement

    Beginning HTML and CSS

    How to Make a Website

    Achieved

    Nov 3, 2015

    Beginning HTML and CSS
  • Achievement

    WordPress Plugin Best Practices

    How to Make a Website with WordPress

    Achieved

    Oct 31, 2015

    WordPress Plugin Best Practices
  • Achievement

    Widgets and Custom Menus

    How to Make a Website with WordPress

    Achieved

    Oct 31, 2015

    Widgets and Custom Menus
  • Achievement

    Custom Post Types and Fields

    How to Make a Website with WordPress

    Achieved

    Oct 31, 2015

    Custom Post Types and Fields
  • Achievement

    Customizing WordPress Themes

    How to Make a Website with WordPress

    Achieved

    Oct 26, 2015

    Customizing WordPress Themes
  • Achievement

    WordPress Themes

    How to Make a Website with WordPress

    Achieved

    Oct 25, 2015

    WordPress Themes
  • Achievement

    Installing Wordpress

    How to Make a Website with WordPress

    Achieved

    Oct 25, 2015

    Installing Wordpress
  • Achievement

    Newbie

    Achieved

    Oct 25, 2015

    Newbie