Skip to content
Observer pattern in Symfony forms
PHP HTML JavaScript Dockerfile
Branch: master
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
bin
config
docker
public
src
templates
tests/App/Controller
.env
.env.test
.gitignore
.travis.yml
LICENSE
README.md
composer.json
composer.lock
phpunit.xml.dist
symfony.lock

README.md

Observer pattern in Symfony forms

Build Status

The purpose of this project is to demonstrate the use of the form events. Read a [detailed description] in my blog.

This application allows you to manage locations. LocationController is used to:

For simplicity, there is a bare minimum of information in each entity:

  • Location contains only a city,
  • City contains its name and a reference to the region in which it is located,
  • Region has a name and belongs to a country,
  • Country is described by its name.

The key element of application is LocationType form type that is used for both creating and editing a location. This form provides the following fields:

  • country is a list of all countries
  • region is a list of all regions of the selected country. If the country is not selected this list should be empty.
  • city - a list of all cities of the selected region. If the region is not selected this list should be empty.

When a country is selected, the list of regions is updated by JavaScript code to contain only the regions of a chosen country. For example if Germany is selected the region list must contain only Baden-Württemberg, Bavaria and other german regions. The same happens when a region changes: the list of cities is updated to contain only the cities of chosen region.

Install

composer install
bin/console doctrine:database:create
bin/console doctrine:schema:update --force
bin/console doctrine:fixtures:load -n

Run in docker

cd docker
docker-compose up -d
You can’t perform that action at this time.