1 sudo gem install chronic
      

      


      
1 sudo gem install chronic

      

      
      

      
1. In init.rb make sure you include the chronic gem as well as the following gems.

      

      
1 dependencies "merb-more", "merb_helpers", "merb-assets", "dm-timestamps", "dm-validations", "chronic" 
      

      


      
1 dependencies "merb-more", "merb_helpers", "merb-assets", "dm-timestamps", "dm-validations", "chronic" 

      

      
      

      
2. In your model.rb chronicfy the date with the datamapper before_valid? hook

      

      
 1   class Post
       2   include DataMapper::Resource
       3   
       4   property :id, Integer, :serial => true # A :serial property is an auto-incrementing key
       5   property :date, Date
       6   property :title, :String
       7   property :description, String
       8   property :created_at, DateTime
       9   property :updated_at, DateTime
      10   
      11   # see http://datamapper.org/docs/validations.html though there must be a way to refactor this cleaner
      12   validates_with_method :must_be_chronic
      13   def must_be_chronic
      14     if Chronic.parse(self.date).nil?
      15       [false, "is not a valid date. Try removing any commas."]
      16     else
      17       return true
      18     end
      19   end
      20 
      21   before :valid?, :chronicfy
      22   def chronicfy 
      23     self.date = Chronic.parse(self.date)
      24   end
      25   
      26 end
      

      


      
 1   class Post

       2   include DataMapper::Resource

       3   

       4   property :id, Integer, :serial => true # A :serial property is an auto-incrementing key

       5   property :date, Date

       6   property :title, :String

       7   property :description, String

       8   property :created_at, DateTime

       9   property :updated_at, DateTime

      10   

      11   # see http://datamapper.org/docs/validations.html though there must be a way to refactor this cleaner

      12   validates_with_method :must_be_chronic

      13   def must_be_chronic

      14     if Chronic.parse(self.date).nil?

      15       [false, "is not a valid date. Try removing any commas."]

      16     else

      17       return true

      18     end

      19   end

      20 

      21   before :valid?, :chronicfy

      22   def chronicfy 

      23     self.date = Chronic.parse(self.date)

      24   end

      25   

      26 end

      

      
      

      
3. In your view, change the date field to a text_field.

      

      
 1 <h1>Posts controller, new action</h1>
       2 
       3 <p>Edit this file in <tt>app/views/posts/new.html.erb</tt></p>
       4 
       5 <%= form_for @post, :class => "post_form", :action => url(:posts) do %>
       6         <%= partial("posts/form") %>
       7 <% end =%>
       8 
       9 
      10 # here's the _form.rhtml partial
      11 <%= error_messages_for @post %>
      12 
      13 <p>
      14 <%= text_field :date, :label => "Date<br />" %>
      15 </p>
      16 
      17 <p>
      18 <%= text_field :title, :label => "Title<br />" %>
      19 </p>
      20 
      21 <p>
      22 <%= text_field :description, :label => "Description<br />" %>
      23 </p>
      24 
      

      


      
 1 <h1>Posts controller, new action</h1>

       2 

       3 <p>Edit this file in <tt>app/views/posts/new.html.erb</tt></p>

       4 

       5 <%= form_for @post, :class => "post_form", :action => url(:posts) do %>

       6         <%= partial("posts/form") >

       7 < end =%>

       8 

       9 

      10 # here’s the form.rhtml partial

      11 <%= error_messages_for @post >

      12 

      13 <p>

      14 <= text_field :date, :label => "Date<br />" >

      15 </p>

      16 

      17 <p>

      18 <= text_field :title, :label => "Title<br />" >

      19 </p>

      20 

      21 <p>

      22 <= textfield :description, :label => "Description<br />" %>

      23 </p>

      24 

      

      
      

      

        
      
      

        
          
        
        
          
        
        
          
        
        
          
        
      
      

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