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Trello project!

Over the next few days, we're going to clone Trello. (This project was based off Simon Chaffetz's final project, which he called Trellino. So we should perhaps call it a Trellino clone instead.)

We're giving you this project partially to give you practise building stuff on your own. This means that I don't have to check these instructions well you'll have to think of stuff on your own.

I've made a short version and long version of these instructions. Choose whichever you prefer.

We've already provided authentication and a Rails API for you, so you just have to build the Backbone app. I just stole the API from Trellino, so you should look at that to get an idea of the functionality before each step.

Start out by looking at the skeleton provided for you. In this project, you'll deal with the models in the following order: boards, lists, cards, todo items, and card assignments. Lists and cards have a rank attribute: this corresponds to the order they're shown in. By the end of this project, you'll be able to edit their order by dragging and dropping them, using jQuery UI.

Terse instructions

Make the show, index, and new page for boards. Next, add lists to the boards. Then add cards to the lists. Then add drag and drop functionality. Then make that card modal view. Congratulations, you just made Trellino.

Detailed instructions

Phase I: Board Index

  • Start up Backbone. Remember to check that you're getting that annoying "Hello from Backbone" alert.
    • Remember to put serializeJSON.js in your project's assets/javascripts directory. (Alternatively, try out this gem.)
    • Make your Backbone model and collection for boards.
    • Make a trello.js file in your javascripts folder. In it, initialize Backbone.
    • Test out your Backbone model: if you use its save method, it should save the model to the database.
  • Build a BoardsIndex view class. Its render function should put an unordered list of our boards on the page.
  • Add a Backbone router: map "/" to the BoardsIndex class. At this point, you should be able to see all your boards on your index page.
  • Add a new board view class, so that you can create boards.

Phase II: Board Show and Lists

  • On your index page, give every board a link to its show page.
  • Make the board show page. Add a Backbone route to it. For the moment, just have a board's show page contain the name of the board and a list of its lists. You can just display a list's name, given that at the moment it has no other content.
    • Remember to display the lists in order of their rank. You might want to overwrite the comparator method of the cards collection.
  • When the user creates a board, it should redirect them to the board's show page. You can use the router's navigate method for this.
  • Add the ability to create lists, via a new list view.
  • Add the ability to add board members. You should be able to type in a username and the website will add that person, or complain that they don't exist.
  • Add a button to delete the board.

Phase III: Cards (finally!)

  • Make your board show page also show the cards for each list. You'll want to do this by adding functionality to the BoardShow.js render method. Again, remember to order them by rank, by overwriting the default comparator method.
  • Make the lists appear next to each other by making each inside a div which you give the CSS setting float: left.
  • Add the ability to create and delete cards for each list. The card deletion should be accomplished by a button for each card which only appears when you're hovering over the card. Use the JQuery hover event to get this effect.

Phase IV: Javascript prettiness!

  • The whole fun of Trello is the dragging and dropping of the to-do items and lists. We'll be using jQuery UI Sortable to accomplish this. Read this example here.
  • First get that working on the client, and then send the result back to the server.
  • To make it prettier, you can give the cards a .dragged CSS style which rotates them slightly and gives them a shadow while they're being dragged.
  • While we're making things pretty, change your forms so that if you enter invalid input, for example by not giving a card a name before creating it, the input element flashes. Use the jQuery UI Highlight effect for this.
  • Also, go back to your Board show page. We want to make it harder to delete your board by accident. So when you click the 'delete' button, a modal should pop down asking if you're sure you want to delete the board. Make this modal by displaying two divs:
    • The first div is to grey out the rest of the window. Just make it have a fixed height and width of 100%, and give it a semitransparent black color.
    • On top of that div, make a centered div which has a button to confirm the deletion of the board.
    • I know that Bootstrap has modals built in, but build this from scratch anyway.
    • You can get advice on this part of the process from this tutorial.

Phase V: Card modal view

  • We want to make a modal view to focus on a particular card. Refer to the advice included in part II on making modals.
  • Within the card modal, we want to show to-do items.
    • To-do items can be created and deleted, and each has a checkbox whose state should be saved to the server whenever it is changed.
  • Also, we want assigned users.
    • Cards have an arbitrary number of assigned users. Note that you only want to give the option of adding users who haven't already been added.

Bonus round

  • Add Javascript prettiness everywhere. Make modals to confirm that you actually want to delete things. Think of more pretty things to do, then do them and add them to these instructions.

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