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POSymfony 1.4: How I can retrieve the selected value with AJAX's function in select dependent?
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2013-12-04T20:39:20.230
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<p>In my database I have two related fields. The second field depends on the value selected in the first. The relations are:</p> <p><img src="https://i.stack.imgur.com/UBeLe.jpg" alt="enter image description here"></p> <p>The function I use in the form of table "conflictos_1" is:</p> <pre><code> <script type="text/javascript"> $(document).ready(function() { $("#conflictos1_id_sector_actividad").change(function() { var id_sub = $(this).val(); if(id_sub != '') { $.ajax ({ type: "POST", url: '<?php echo url_for('conflictos/subsector'); ?>'+ '?id=' + id_sub, cache: false, data: "id_sub="+ id_sub, success: function(data) { $("#conflictos1_id_subsector_actividad").html(data); // but it does not select the value of dropdown list. } }); } else { $("#conflictos1_id_subsector_actividad").html("<option value=''>-- No se ha seleccionado subsector --</option>"); } return false; }); }); </script> </code></pre> <p>When I add a new record, everything works fine. But when I edit a record, the select dependent, does not show "selected" value. In edit mode, when I look at the field "id_subsector_actividad", the selected value should be, for example, <code><option value="37 " selected="selected"></code>: This is what I see on my form when I inspect the element created with AJAX's function:</p> <pre><code><select name="conflictos1[id_subsector_actividad]" id="conflictos1_id_subsector_actividad"> <option value="29 ">14.1 Meretrices</option> <option value="30 ">Preparación de alimentos y comedor</option> <option value="31 ">Seguridad</option> <option value="37 ">redes sanitarias</option> </select> </code></pre> <p>This is what I WANT to see:</p> <pre><code><select name="conflictos1[id_subsector_actividad]" id="conflictos1_id_subsector_actividad"> <option value="29 ">14.1 Meretrices</option> <option value="30 ">Preparación de alimentos y comedor</option> <option value="31 ">Seguridad</option> <option value="37 " selected="selected">redes sanitarias</option> </select> </code></pre> <p>I use this function to filter records in the table "Subsector_actividad_ta8"(I work with Symfony 1.4 and Doctrine): </p> <pre><code> public function executeSubsector() { $id_sub = $_POST['id_sub']; $this->subsec= Doctrine_Core::getTable('SubsectorActividadTa8') ->createQuery('a') ->where('a.id_sector = ?', $id_sub) ->execute(); } </code></pre> <p>My question is: What should I change in the AJAX's function, to display the "selected" value in the second field, when I am editing an existing record?</p>
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Symfony 1.4: How I can retrieve the selected value with AJAX's function in select dependent?
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