views.reagent/examples/class-registry

Reagent Data Views Example - Class Registry

This is a "Class Registry" application that has a lot of CRUD operations in it which allow users to manage students and professors, as well as classes and then assign the students/professors to those classes. The idea is very loosely based off one of the Om tutorial applications (the data used is almost identical).

Note that this example is somewhat complicated as there are several lists of data shown in the UI, all of which are completely editable to the user. While the code is longer as a result, this still serves as a more interesting example with several views being used (some using parameters).

Definitely take a look at the TodoMVC example app before diving into this and also be sure you're familiar with Reagent.

Running

A quick note on the dependencies used

Since Reagent Data Views and the Views library it depends on are all currently in somewhat of an experimental / pre-beta state right now, you will need to first clone the following repositories and manually install the libraries via lein install:

• views
• views-sql
• reagent-data-views

As well, you can install views-honeysql if you want to try out using HoneySQL instead of SQL with views. But this example app does not use it so it's not required.

Creating the Database

This example app uses a PostgreSQL database. The SQL script to create it is in create_db.sql. You can easily pipe it into psql at a command line to create it quickly, for example:

$ psql < create_db.sql

(Of course, add any username/host parameters you might need)

Starting It Up

To build everything and run in one step:

$ lein rundemo

Then open up a web browser or two and head to http://localhost:8080/ to see the web app in action.

If you want to run this application in a REPL, just be sure to build the ClojureScript:

$ lein cljsbuild once

And then in the REPL you can just run:

(-main)

to start the web app (you should be put in the correct namespace immediately).