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源码开发语言/平台
extended_form_helper
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资源说明：Helper methods to ease form creation
= ExtendedFormHelper

Helper methods to ease form creation

Note that all e_xxx are just wrapers, so all non mentioned options are send directly to underlying method

All methods work as expected in form_for:
  <% form_for(:page) do |f| %>
    <%= f.e_text_field(:title, :label => true) %>
    <%= f.e_text_area(:text, :label => true, :before => 'description') %>
    <%- f.e_check_box(:agree, :label => true) do |c| -%>
      <%= c %>
      <%= render 'agreement' %>
    <%- end -%>
    <%= f.e_submit %>
  <% end %>

== Examples

=== e_text_field

  <%= f.e_text_field(:title) %>

  

    
  


with hint:
  <%= f.e_text_field(:title, :hint => 'input some text') %>

  

    
    
  


with error:
  <%= f.e_text_field(:title) %>

  

    

      
    

    
not good

  


with errors:
  <%= f.e_text_field(:title) %>

  

    

      
    

    
    
      
  • not good
    • 
      
  • not bad
    • 
    

  


with label:
  <%= f.e_text_field(:title, :label => 'Input text') %>

  

    
    
  


with label from I18n (define translation for 'page.title'):
  <%= f.e_text_field(:title, :label => true) %>

  

    
    
  


with class:
  <%= f.e_text_field(:title, :class => 'superField') %>

  

    
  


with content before and after:
  <%= f.e_text_field(:title, :before => 'before', :after => 'after') %>

  

    before
    
    after
  


in block form:
  <%- f.e_text_field(:title) do |c| -%>
    before
    <%= c %>
    after
  <%- end -%>

  

    before
    
    after
  


besides to_str method (called implicitly - concats label, control and errors), there are methods label, control and errors

=== e_text_area, e_file_field, e_check_box

same as e_text_field:
  <%= f.e_text_area(:title, :label => 'Input text') %>
  <%= f.e_file_field(:title, :label => 'Input text') %>
  <%= f.e_check_box(:title, :label => 'Input text') %>

  

    
    
  

  

    
    
  

  

    
    
    
  


=== e_password_field

same as e_text_field, but value is not automatically inserted:
  <%= f.e_password_field(:title, :label => 'Input text') %>

  

    
    
  


pass :value => true to insert:
  <%= f.e_password_field(:title, :value => true) %>

  

    
  


=== e_submit

  <%= f.e_submit('save') %>

  

    
  


getting values from I18n (define translation for 'page.create' and 'page.save'):
  <%= f.e_submit %>

  

    
  


=== custom control

  def trigger(object_name, method, options)
    '
i am trigger
'
  end
  <%= f.e_control(:trigger, :switch_column) %>

  

    
i am trigger

  


as block:

  def super_trigger(object_name, method, options)
    '
i am super trigger
'
  end
  <%- e_control(:super_trigger, :switch_column) do |c| -%>
    before
    <%= c %>
    after
  <%- end -%>

  

    before
    
i am super trigger

    after

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