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Django Templates: Tree select option

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  1. <select name="category" id="id_category">
  2. <option value="" selected="selected">---------</option>
  3. {% for item in categories %}
  4.     {% ifequal item.parent_id 0 %}
  5.         <optgroup label="{{ item.name }}">
  6.             <option value="{{ item.id }}">{{ item.name }}</option>
  7.             {% for subitem in categories %}
  8.                 {% ifequal subitem.parent_id item.id %}
  9.                    <option value="{{ subitem.id }}">{{ subitem.name }}</option>
  10.                 {% endifequal %}
  11.             {% endfor %}
  12.         </optgroup>
  13.     {% endifequal %}
  14. {% endfor %}
  15. </select>

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