Application Helpers
Custom Form Builders
You can also easily build your own FormBuilder which allows for customized fields and behavior:
class MyCustomFormBuilder < AbstractFormBuilder
# Here we have access to a number of useful variables
#
# ** template (use this to invoke any helpers)(ex. template.hidden_field_tag(...))
# ** object (the record for this form) (ex. object.valid?)
# ** object_name (object's underscored type) (ex. object_name => 'admin_user')
#
# We also have access to self.field_types => [:text_field, :text_area, ...]
# In addition, we have access to all the existing field tag
# helpers (text_field, hidden_field, file_field, ...)
end
Once a custom builder is defined, any call to form_for can use the new builder:
= form_for @user, '/register', :builder => 'MyCustomFormBuilder', :id => 'register' do |f|
...fields here...
The form builder can even be made into the default builder when form_for is
invoked:
# anywhere in the Padrino or Sinatra application
set :default_builder, 'MyCustomFormBuilder'
And there you have it, a fairly complete form builder solution for Padrino (and Sinatra).
last updated: 2022-02-22
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