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Contents
module ExpressTemplates
module Components
module Forms
# Provides a form Select component based on the Rails *select_tag* helper.
# Parameters:
# field_name, select_options, helper_options
#
# Select options may be specified as an Array or Hash which will be
# supplied to the *options_for_select* helper.
#
class SelectCollection < Select
emits -> {
div(class: field_wrapper_class) {
label_tag(label_name, label_text)
# need this because the collection_select helper does not provide
# the hidden_field_tag trick (see rails api docs for select)
hidden_field_tag(multi_field_name, '')
collection_select(*collection_select_tag_args)
}
}
def collection_select_tag_args
[ resource_name,
multi_field_name,
related_collection, :id, :name,
field_options,
html_options ]
end
def field_options
super.merge(include_blank: false)
end
def html_options
(super||{}).merge(multiple: true)
end
def multi_field_name
if has_many_through_association
"#{field_name.singularize}_ids"
else
raise "Only use select_collection for has_many :through. #{field_name} is not has_many :through"
end
end
end
end
end
end
Version data entries
5 entries across 5 versions & 2 rubygems