@@ -1,38 +1,40 @@ module JsonAutocompleteHelper - + def json_autocomplete(record, association, choices_url, options = {}) current_id = record.send("#{association}_id") current_name = record.send(association).to_s - + dom_id_base = options[:dom_id_base] || dom_id(record) dom_name_base = options[:dom_name_base] || record.class.name.underscore - + base_field_id = "#{dom_id_base}_#{association}" - + id_field_name = "#{dom_name_base}[#{association}_id]" type_field_name = "#{dom_name_base}[#{association}_type]" - + js_var_name = options[:js_var_name] || base_field_id; - + width = options[:width] || "30ex" - + as_user_id = options[:as_user] - as_user_id = as_user_id.id if as_user_id.kind_of?(User) - + as_user_id = as_user_id.id if as_user_id && !as_user_id.kind_of?(Integer) + on_change = options[:onchange] || "null" label_attribute = options[:label_attribute] || "name" - + + choices_url = url_for(choices_url) if choices_url.kind_of?(Hash) + if as_user_id choices_url << (choices_url.include?('?') ? "&" : "?") + "perform_as_user_id=#{as_user_id}" end - + if options[:with] with = "'#{choices_url.include?('?') ? "&" : "?"}' + #{options[:with]}" else with = "''" end - + if options[:with_form_elements] wfe = "" if options[:with_form_elements].kind_of?(Hash) @@ -52,17 +54,17 @@ module JsonAutocompleteHelper wfe = 'null' end with_form_elements = wfe - - + + # modify the URL to make sure we're requesting a response in JSON format choices_url.sub!(/\?|$/, ".json#{'?' if choices_url.include?('?')}") unless choices_url.include? '.json' - + style = options[:style] || "" - + if width style << "; width: #{width}" end - + type_field = %{<input type="hidden" name="#{type_field_name}" id="#{base_field_id}_type" class="type" />} if options[:include_type_field] autocomplete_field = %{<input type="text" name="#{base_field_id}_autocomplete" style="width: #{width}" id="#{base_field_id}_autocomplete" class="text" value="#{current_name}" />} @@ -75,23 +77,24 @@ module JsonAutocompleteHelper </div> } - container = ActionView::Base.field_error_proc.call(container, self) if record.errors.on("#{association}") || record.errors.on("#{association}_id") - + container = ActionView::Base.field_error_proc.call(container, self) if record.errors && + (record.errors.on("#{association}") || record.errors.on("#{association}_id")) + javascript = javascript_tag %{ var #{js_var_name} = new JSON.Autocompleter( - '#{base_field_id}_autocomplete_container', - '#{base_field_id}_options', + '#{base_field_id}_autocomplete_container', + '#{base_field_id}_options', '#{choices_url}', { - 'parameters': #{with}, - 'withFormElements': #{with_form_elements}, + 'parameters': #{with}, + 'withFormElements': #{with_form_elements}, 'onchange': #{on_change}, 'labelAttribute': '#{label_attribute}' } ) } - + return container + javascript end - + end \ No newline at end of file lib/json_autocomplete_helper.rb b509704f18d08e7eeb5a479d7a83e7760aceb8e7 Matt Zukowski matt@zukowski.ca http://github.com/zuk/json_autocompleter/commit/1cc2510536883cc56a6c2b41ba77efcd4f5ef40b 1cc2510536883cc56a6c2b41ba77efcd4f5ef40b 2009-09-24T20:54:26-07:00 2009-09-24T20:54:26-07:00 better handling of sketchy arguments 35b324323785542c2db2e9aeb91a22a9d4b2cf62 Matt Zukowski matt@zukowski.ca