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module DynamicFieldsets
# A select field that handles multiple selections
#
# Even though it just uses a select tag helper with multiple: true, the backend is quite different
# from the select field. It uses the multiple_answers mixin and all of the value and default
# methods return arrays instead of strings.
class MultipleSelectField < Field
acts_as_field_with_field_options
acts_as_field_with_multiple_answers
# @return [Hash] Sets multiple to true along with the standard arguments
def html_attribute_hash
super.merge!({
:multiple => true
})
end
# @return [Hash] data for the form partial
def form_partial_locals(args)
super.merge!({
:selected_ids => values_or_defaults_for_form(args[:values]),
:collection => self.options
})
end
# this returns field option ids based on the field default values
# due to funness with field options
#
# there is a good chance this is only needed due to a bug in multiple select's save default method
# We may need to take a look at this in the future. I think it could be moved to a mixin. (JH 2-28-2012)
# @return [Array] An array of field option ids that correspond to the field defaults
def collect_default_values
output = []
field_defaults.each do |default|
# find a field option with the same name as the default
# add it's id to the output
output << field_options.select { |option| option.name == default.value }.first.id
end
return output
end
end
end
Version data entries
21 entries across 21 versions & 1 rubygems