aprilrabkin

<input checked="checked" id="post_tag_ids_1" name="post[tag_ids][]" type="checkbox" value="1">
<label for="post_tag_ids_1">adventurous</label>


<input id="post_tag_ids_2" name="post[tag_ids][]" type="checkbox" value="2">
<label for="post_tag_ids_2">aggressive</label>

aprilrabkin

<%= form_for(@post) do |f| %>
    <%= f.label :name %><br>
    <%= f.text_field :name %><br>
    <%= f.label :content %><br>
    <%= f.text_area :content %><br>
    Tags:
    <%= f.collection_check_boxes :tag_ids, Tag.all, :id, :name %><br>
    <%= f.submit %>
<% end %>

aprilrabkin

$lower_case   = "abcdefghijklmnopqrstuvwxyz"
$upper_case = $lower_case.upcase

def caesar_encode(string, offset)
	array = string.split("")
	array.map! do |l| 
		if /[a-z]/ ===  l
			idx = $lower_case.rindex(l) 
			idx = (idx + offset) % 26
			$lower_case[idx]