This post is to assist to create a select tag in a view (HTML) with a list of countries.
The solution presented here:
– The countries are stored in a table in database. If you don’t want to have a table with countries in DB, you can easily modify the code below to have countries as an array in code.
– Helper to show a list of countries in select tag in HTML
You can find the whole solution on github.
Ruby and Rails have many magic features like blocks/closures, duck typing/mix-ins/modules, method_missing, poetry mode.
One of the common tasks in programming web applications on Rails is finding a row in a table by several columns and creating a new row in case of row is missing.
sometimes in after_save callback it is needed to determine if a record was created or updated without the use of after_create callback.
The post describes what mean ‘attr_accessor’ and ‘attr_accessible’ in a Rails Model.