acts_as_nested_set OPTION_CAPABLE = 2 LEVELS = [:continent, :country, :region, :town, :suburb]
<% ancestors = location.self_and_ancestors if location %>
<%= hidden_field_tag 'products[location_id]', location ? location.id : nil %>
<% is_text_field = false %>
<% Location::LEVELS.each_with_index do |level, level_number| %>
<% previous_ancestor = (ancestors ? ancestors[level_number - 1] : nil) %>
<% ancestor = (ancestors ? ancestors[level_number] : nil) %>
<div id="location_<%= level %>_container">
<% children = (previous_ancestor ? previous_ancestor.children : []) %>
<% options = (0 == level_number ? Location.roots : children).map { |l| [l.name, l.id] } %>
<% if options.size > 0 %>
<%= label_tag :"select_location_#{level}" %>:
<% options = [[Location.human_attribute_value(:name, :value => :select), '']] + options %>
<% options += [[Location.human_attribute_value(:name, :value => :other), 0]] if level_number > Location::OPTION_CAPABLE %>
<%= select_tag :"location_#{level}", options_for_select(options, (ancestor ? ancestor.id : nil) || params[:other].to_i) %> - <%= (ancestor ? ancestor.id : nil) || params[:other].to_i %><br/>
<% end %>
<% if (Location::LEVELS.last != level && !ancestor.nil? && ancestor.children.size == 0) || (ancestor.nil? && params[:other]) || is_text_field %>
<% is_text_field = true %>
<% unless !ancestor.nil? && ancestor.children.size == 0 %>
<%= label_tag :"type_location_#{level}" %>:
<%= text_field_tag :a, :a %>
<% end %>
<% end %>
</div>
<% end %>
Refactorings
No refactoring yet !
Tj Holowaychuk
May 14, 2009, May 14, 2009 15:50, permalink
1 rating.
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Gah I cant even look at ERB its so nasty. First of all I would drop the brackets im not sure why everyone does that ie:
LEVELS = :continent, :country, :region, :town, :suburb
It's a Location selector, from Continent till Suburb.
There are a different rules:
* Next selection must appear if only previous level been selected
* If no children on current level, then all next levels show as a text fields
* If level > OPTION_CAPABLE, then must appear option "Other"
* If Other selected, then self and all next levels must show as a text fields
/me start to write tests for this biiig view partial.
Thanks.