Extend an application

• Extensions mechanisms
  • Create a file in local
    • Configuration
    • Views
  • Use events to alter a configuration
  • Replace a view with another one
  • Create a dedicated extension application
• Bootstrap
• Adding a field
  • In the database
  • In the model
    • Declare the field
    • Activate the properties cache
  • In the form
  • In the visualisation
• Changing the appearance on the website
  • Changing the view
    • 1^st solution: extending the view
    • 2^nd solution: extends the configuration
  • Adding the CSS
    • 1^st solution: extending the view
    • 2^nd solution: directly take action on the template
• Add an action in the admin
  • Placeholders
  • Action’s target
  • Add / Edit / Delete
• Alter a behaviour of the front-office
  • Redirecting depending on the URL
  • Sending a thank-you mail from a contact form