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Presentation notes and assets for February 2009 Maine Ruby Users group meeting.

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README.markdown

[DRAFT]


Learning Objectives:

  • Non-Developer types will know what a social network is
  • Non-Developer types be able to think critically about how or why they might use an SN
  • Developer types will know how to explain what a social network is
  • Developer types will be able to explain to Non-Developer types why they should (or shouldn't use an SN)
  • Developer types will be able to build a basic social network app using existing tools
  • ...

Simple Social Networking With Ruby on Rails

Abstract: What is a social network? Why build a social network? How might one build a social network? As we explore these questions, we will look at the development of a social networking application that is built on top of the Ruby on Rails platform Insoshi.

About the presenter(s?): By day, Justin Henry [http://jdhenry.com] is a mild mannered application administrator at a Public Ivy somewhere in New England. By night, Mr. Henry puts on his cape and develops custom web applications for fun and profit.

A few networks I'm on:

  • [screenshot of FF accounts page]

What is a social network?

  • Context of web applications

  • Provides a Utility and/or Function for users

    • Content is still king
    • Content tends to be user-generated, controlled, and owned (unless you are FB, apparently)
    • Content interaction patterns (generating new content, sharing/republishing, modifying/remixing)
  • It's People!

    • user relationships are generally many-to-many
    • a blog is more of a one-to-many relationship pattern
    • User interaction patterns (friendships, fans, friends-you-may-know)

Why build a social network?

  • What are you selling?
    • An idea, product, theology, movement, etc.
  • Why will your users come here?

  • What channels do you currently reach with your customers?

    • How are you interacting with your customers?
    • How do your customers interact with each other?
    • How do your customers interact with their customers and others around them?
  • The evolution of the newsletter

    • newsletters -> email lists -> blogs -> social networks?
  • It's fun!

  • Provide a service to customers and potential customers
  • Crowdsourcing - i.e. google's image word game
  • Think small - it doesn't have to be the next Facebook.
  • Karma - putting the Service and the Community back in community service
  • Scratch that itch (whiteboard in the sky)

How do you build a social network?

  • Join as many as you can
    • Get a feel for what others are doing in terms of UI
    • consider this an education in user interaction and user experience
    • Just like reading blogs or books will help you become a better writer.
    • Using these applications will inform your development process

Let's start by thinking about what our data looks like

At the least, you'll probably have:

  • Users
  • Relationships (friends/fans)
  • Content

Pre-Fab vs. Home Cookin'

Building from Scratch

  • It's not too far off from the build-a-blog in 5 minutes example
  • Just need a few more models, right?
  • Add in a few plugins....

Example relationships

Insoshi's connections migrations:

create_table "connections", :force => true do |t| t.integer "person_id" t.integer "contact_id" t.integer "status" t.datetime "accepted_at" t.datetime "created_at" t.datetime "updated_at" end

Dan Fischer's "FischyFriends" example migration

create_table :friendships do |t| t.integer "user_id", :null => false t.integer "friend_id", :null => false t.datetime "created_at" t.datetime "updated_at" t.timestamps end

A few plugins and tools for consideration:

  • Paperclip
  • acts_as_commentable
  • acts_as_taggable_on

Prefab:

  • Refactoring other people's code is a great way to learn

Several options exist in the rails community:

  • Community Engine - bills itself as a "plugin"
  • Insoshi platform
  • Ning (furniture included! buy vs. build)
  • Bort, etc (just the walls, please)
  • ... and many more ...

Enter Insoshi

  • Advantage: having a lot of pieces laid out for you
    • galleries, forums, blogs, messaging, activity feeds, events
  • Disadvantage: having a lot of pieces laid out for you
    • may be lots to change or retrofit to your needs

Inshtalling Insoshi

  • To sphinx or not to sphinx?
    • might depend on db you are using (don't need it for postgres)
    • installing sphinx on OSX is a pain - need to add symlink, i.e.:
    • sudo ln -s /usr/local/mysql/lib /usr/local/mysql/lib/mysql
    • after, it runs pretty smoothly
  • To install without sphinx, just skip that part of the install process.
  • Yaay, I've got tests, yaaay!
  • installer script installs gems

Building on top of Insoshi

  • Users and relationships already exist
  • Choose a model(s) to repurpose as needed (i.e. for custom content)
  • Build new model(s) for custom content and interactions

Example App - MyEventCarbon

  • Idea: Set up an app to let attendees and promoters of local events:

    • track the carbon footprint of their events
    • organize carpools
    • suggest bus routes and other alternatives
  • Repurpose Insoshi's nascent event model

  • Use Gmaps api for geocoding
  • AMEE for carbon calculations (ammee.com)
  • Plugins

    • ym4r for embedding google maps
    • rspec_response_enhancer - add more descriptive output to rspec
    • Floppy-amee - for interacting with AMEE data
  • Demo:

    • create account,
    • register for event
  • Next steps

    • Carpooling offering/accepting/tracking
    • Live carbon calculations
    • Pull events from other services (upcoming, eventful)
    • Import ical files, RSS, microformats (hcal)
    • Adding to activity feed
    • backchannel integration
  • Tests appear to be generated?

  • Odd mass-assignment solution
  • calendar date select widget is broken

Moving forward

Sources, Resources, and paths for further exploration

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