How to create a multi-edit form in rails -

i need create multi-edit form in rails, so:

<form> <input type='text' name='input1'></input> <input type='text' name='input2'></input> <input type='text' name='input3'></input> <input type='text' name='input4'></input> <input type='text' name='input5'></input> <br> <input type='text' name='input1'></input> <input type='text' name='input2'></input> <input type='text' name='input3'></input> <input type='text' name='input4'></input> <input type='text' name='input5'></input> <br> <input type='text' name='input1'></input> <input type='text' name='input2'></input> <input type='text' name='input3'></input> <input type='text' name='input4'></input> <input type='text' name='input5'></input> <br> 

... , on, "<submit>" button @ end. 1 click of submit button @ end should collect values , parse them in controller.

i need know how generate multi-edit form in view. also, each row unique; i'd need know how assign unique identifier each of input tags guess; have unique id value use.

this trivial accomplish, need more information. how these fields related models? 1 model many fields, many instances of model or else?

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what want in situation use form builder. generate input fields according naming convention parsed more useful format when gets controller. since have no information models, use hypothetical example:

class post < activerecord::base   attr_accessible :title, :body, :author, :published_at end 

create form using form_for helper. give formbuilder object create input fields.

<% form_for :post |f| -%>   <p>     <%= f.label :title %>     <%= f.text_field :title %>   </p>   <p>     <%= f.label :body %>     <%= f.text_area :body %>   </p>   <p>     <%= f.label :author %>     <%= f.text_field :author %>   </p>   <p>     <%= f.label :published_at %>     <%= f.datetime_select :published_at %>   </p> <% end -%> 

the key benefit of using helpers name attribute of inputs generates. since body belongs form post given name attribute post[body]. these attributes parsed following hash:

:post => {   :title => "this title",   :body => "this body",   :author => "john doe",   :published_at => "mon nov 15 2010 19:23:40 gmt-0600 (cst)" } 

this means don't need manually copy fields model. can pass directly model#new method:

@post = post.new(params[:post]) 

and validation checks. convention becomes indispensable when start nesting models inside 1 another.

see here more thorough guide form helpers.