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| author | Prem Sichanugrist <s@sikachu.com> | 2011-09-02 21:35:24 +0700 |
|---|---|---|
| committer | Prem Sichanugrist <s@sikachu.com> | 2011-09-04 11:55:12 +0700 |
| commit | b84cee08c6129717d7c3291918f06f95cc9eb916 (patch) | |
| tree | 84dcf7af7d54265602f7499ed69ca5cec345ebdd /actionpack/lib | |
| parent | d50c0acc95d9ac9b258594c7d68e1eeef9b6d41e (diff) | |
| download | rails-b84cee08c6129717d7c3291918f06f95cc9eb916.tar.gz rails-b84cee08c6129717d7c3291918f06f95cc9eb916.tar.bz2 rails-b84cee08c6129717d7c3291918f06f95cc9eb916.zip | |
Make `content_tag_for` and `div_for` accepts the array of records
So instead of having to do this:
@items.each do |item|
content_tag_for(:li, item) do
Title: <%= item.title %>
end
end
You can now do this:
content_tag_for(:li, @items) do |item|
Title: <%= item.title %>
end
Diffstat (limited to 'actionpack/lib')
| -rw-r--r-- | actionpack/lib/action_view/helpers/record_tag_helper.rb | 56 |
1 files changed, 51 insertions, 5 deletions
diff --git a/actionpack/lib/action_view/helpers/record_tag_helper.rb b/actionpack/lib/action_view/helpers/record_tag_helper.rb index 142a25f118..ad8896a2fd 100644 --- a/actionpack/lib/action_view/helpers/record_tag_helper.rb +++ b/actionpack/lib/action_view/helpers/record_tag_helper.rb @@ -17,6 +17,19 @@ module ActionView # # <div id="person_123" class="person foo"> Joe Bloggs </div> # + # You can also pass an array of Active Record objects, which will then + # get iterates over and yield each record as an argument for the block. + # For example: + # + # <%= div_for(@people, :class => "foo") do |person| %> + # <%= person.name %> + # <% end %> + # + # produces: + # + # <div id="person_123" class="person foo"> Joe Bloggs </div> + # <div id="person_124" class="person foo"> Jane Bloggs </div> + # def div_for(record, *args, &block) content_tag_for(:div, record, *args, &block) end @@ -42,6 +55,21 @@ module ActionView # # <tr id="foo_person_123" class="person">... # + # You can also pass an array of objects which this method will loop through + # and yield the current object to the supplied block, reduce the need for + # having to iterate through the object (using <tt>each</tt>) beforehand. + # For example (assuming @people is an array of Person objects): + # + # <%= content_tag_for(:tr, @people) do |person| %> + # <td><%= person.first_name %></td> + # <td><%= person.last_name %></td> + # <% end %> + # + # produces: + # + # <tr id="person_123" class="person">...</tr> + # <tr id="person_124" class="person">...</tr> + # # content_tag_for also accepts a hash of options, which will be converted to # additional HTML attributes. If you specify a <tt>:class</tt> value, it will be combined # with the default class name for your object. For example: @@ -52,12 +80,30 @@ module ActionView # # <li id="person_123" class="person bar">... # - def content_tag_for(tag_name, record, prefix = nil, options = nil, &block) - options, prefix = prefix, nil if prefix.is_a?(Hash) - options ||= {} - options.merge!({ :class => "#{dom_class(record, prefix)} #{options[:class]}".strip, :id => dom_id(record, prefix) }) - content_tag(tag_name, options, &block) + def content_tag_for(tag_name, single_or_multiple_records, prefix = nil, options = nil, &block) + if single_or_multiple_records.respond_to?(:to_ary) + single_or_multiple_records.to_ary.map do |single_record| + capture { content_tag_for_single_record(tag_name, single_record, prefix, options, &block) } + end.join("\n") + else + content_tag_for_single_record(tag_name, single_or_multiple_records, prefix, options, &block) + end end + + private + + # Called by <tt>content_tag_for</tt> internally to render a content tag + # for each record. + def content_tag_for_single_record(tag_name, record, prefix, options, &block) + options, prefix = prefix, nil if prefix.is_a?(Hash) + options ||= {} + options.merge!({ :class => "#{dom_class(record, prefix)} #{options[:class]}".strip, :id => dom_id(record, prefix) }) + if block.arity == 0 + content_tag(tag_name, capture(&block), options) + else + content_tag(tag_name, capture(record, &block), options) + end + end end end end |