I did quite a lot today. From working login, I went to being able to add teams through the user interface. All code changes can be seen in today’s pull request.
Tables and entity classes for countries and teams
I started with a database table for country information. I decided that this one will be (for now) managed only through Liquibase changesets, as I expect that country list will be static. For the beginning, there’s only one country (Poland), but I already have a task to add more. Each of the countries consists of name, some country codes (ISO-3166-1, FIFA, IOC) and a link to flag picture from Wikimedia Commons.
My structure for teams starts simple and is likely to grow. We’ve got a name, country and a link to team’s crest (logo). Right now I don’t store pictures, just links to them. This will likely change in future, but that requires a decision on how to store them – something that is a good topic for another post 🙂
I must admit that I had some issues with Vue.js. My first idea was to create a REST API returning team list, load them with Vue.js and present records in a table with Angular-like syntax. I must have overlooked that before, but it turns out that core Vue cannot trigger AJAX calls and needs to use a separate library for that. One has several options, starting with vue-resource, up to jQuery. I decided to start with jQuery, as I already was importing it for Bootstrap JS features. Turned out that fighting with what it looked like a simple „for each row print <tr> and three <td> tags” took me three hours after which I decided that for this module, I will go the known way and implement it with Thymeleaf.
With Thymeleaf, the structure of the application is different. We don’t provide a REST API but insert needed values on backend side using a Model object instead. The templating engine works fairly similar to what I wanted with Vue.js though, so while I don’t remove Vue yet, I’ll start with Thymeleaf and read more on Vue in the meantime.
Thymeleaf has its benefits – one of them is a fragment-based layout. I now have a structure where layout.html defines the core layout and each of pages doesn’t have to include a header, footer, core CSS and JS files all over again. Of course, as I’m a lazy developer that wants to start with something that looks decent and is responsive, I started with Bootstrap that I aim to customize when I get the functional part done.
So, how does the team list look like?
The user is able to add a new team, define a country (from a long list that includes Poland, Poland and… Poland), add a link to a crest picture and that’s it. Not much, but it is a first real functional part of the application. More to come soon.