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Magento Add default value to System Configuration Option fields

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This article shows how to add default value to any system configuration option fields. System configuration option fields means those options under System -> Configuration.

Suppose, you have the following system.xml file. System.xml file is necessary to add admin configuration options.

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  1. system.xml
  2. <?xml version="1.0" encoding="UTF-8"?>
  3.     <config>
  4.        <sections>
  5.             <mysection translate="label" module="mymodule">
  6.                 <label>My Section</label>
  7.                 <tab>catalog</tab>
  8.                 <frontend_type>text</frontend_type>
  9.                 <sort_order>110</sort_order>
  10.                 <show_in_default>1</show_in_default>
  11.                 <show_in_website>1</show_in_website>
  12.                 <show_in_store>1</show_in_store>
  13.                 <groups>
  14.                     <mygroup translate="label" module="mymodule">
  15.                         <label>My Group</label>
  16.                         <frontend_type>text</frontend_type>
  17.                         <sort_order>99</sort_order>
  18.                         <show_in_default>1</show_in_default>
  19.                         <show_in_website>1</show_in_website>
  20.                         <show_in_store>1</show_in_store>
  21.                         <fields>
  22.                             <myfield translate="label comment">
  23.                                 <label>My Field</label>
  24.                                 <frontend_type>text</frontend_type>
  25.                                 <sort_order>1</sort_order>
  26.                                 <show_in_default>1</show_in_default>
  27.                                 <show_in_website>1</show_in_website>
  28.                                 <show_in_store>1</show_in_store>
  29.                             </myfield>
  30.                         </fields>
  31.                     </mygroup>
  32.                 </groups>
  33.             </mysection>
  34.         </sections>
  35.     </config>
  36.  
  37.  
  38. Now, to add default value to the admin configuration options, you need to write the following in config.xml file of your module. The should be inside config node.
  39.  
  40. config.xml
  41. <default>
  42.     <mysection>
  43.         <mygroup>
  44.             <myfield>My Default Value</myfield>
  45.         </mygroup>
  46.     </mysection>
  47. </default>
  48.  
  49. http://www.magentocommerce.com/wiki/5_-_modules_and_development/admin/xml_structure_for_admin_configurations

URL: http://blog.chapagain.com.np/magento-add-default-value-to-system-configuration-option-fields/

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