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PODrupal 7 Forms API - AJAX Forms error: An illegal choice has been detected. Please contact the site administrator
 

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  1. PODrupal 7 Forms API - AJAX Forms error: An illegal choice has been detected. Please contact the site administrator
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    <p>I have a form set up where a users selects an item from a drop down. Once that item is selected another drop down is populated. Then depending on the value that is selected from the second drop down a fieldset may or may not be shown. If the field set is shown there is a field and a button. By clicking the button you add another copy of the same field. Once there is more than one a remove one button shows up as well. I got the basis for the code from here: <a href="http://api.drupal.org/api/examples/ajax_example%21ajax_example_graceful_degradation.inc/function/ajax_example_add_more/7" rel="nofollow">http://api.drupal.org/api/examples/ajax_example%21ajax_example_graceful_degradation.inc/function/ajax_example_add_more/7</a></p> <p>The problem is when I click 'Add Another Survey Question' the first time it works fine and add a field. When I click it a second time or when I click remove now that there are two, I get this error: 'An illegal choice has been detected. Please contact the site administrator.'</p> <p>What am I doing wrong?</p> <p>Here's my code:</p> <pre><code>function touchpoints_addmetric_form($form, &amp;$form_state, $tp_id) { $selectedType = isset($form_state['values']['type']) ? $form_state['values']['type'] : FALSE; $types = db_query('SELECT * FROM {touchpoints_metric_types}') -&gt; fetchAllKeyed(0, 1); $form['#tree'] = TRUE; $form['type'] = array( '#type' =&gt; 'select', '#title' =&gt; t('Metric Type'), '#options' =&gt; $types, '#required'=&gt;TRUE, '#ajax' =&gt; array( 'event' =&gt; 'change', 'wrapper' =&gt; 'method-wrapper', 'callback' =&gt; 'touchpoints_method_callback' ) ); $form['measurementmethod'] = array( '#type' =&gt; 'select', '#title' =&gt; t('Measurement Method'), '#required'=&gt;TRUE, '#prefix' =&gt; '&lt;div id="method-wrapper"&gt;', '#suffix' =&gt; '&lt;/div&gt;', '#options' =&gt; _get_methods($selectedType) ); $form['survey'] = array(' #type' =&gt; 'fieldset', '#collapsible' =&gt; FALSE, '#states' =&gt; array( 'visible' =&gt; array( array( array(':input[name="measurementmethod"]' =&gt; array('value' =&gt; '5')), 'xor', array(':input[name="measurementmethod"]' =&gt; array('value' =&gt; '6')), 'xor', array(':input[name="measurementmethod"]' =&gt; array('value' =&gt; '7')) ) ) ) ); $form['survey']['contents'] = array( '#type' =&gt; 'fieldset', '#collapsible' =&gt; FALSE, '#prefix' =&gt; '&lt;div id="survey-div"&gt;', '#suffix' =&gt; '&lt;/div&gt;', ); if (empty($form_state['num_surveys'])) { $form_state['num_surveys'] = 1; } for ($i = 1; $i &lt;= $form_state['num_surveys']; $i++) { $form['survey']['contents']['survey_question'][$i] = array( '#type' =&gt; 'textfield', '#title' =&gt; t('Survey Question ' . $i), '#size' =&gt; 70, '#maxlength' =&gt; 100, ); } $form['survey']['contents']['addsurvey'] = array( '#type' =&gt; 'submit', '#value' =&gt; t('Add Another Survey Question'), '#submit' =&gt; array('touchpoints_metrics_survey_add_one'), '#limit_validation_errors' =&gt; array(), '#ajax' =&gt; array( 'callback' =&gt; 'touchpoints_metrics_survey_callback', 'wrapper' =&gt; 'survey-div', ), ); if ($form_state['num_surveys'] &gt; 1) { $form['survey']['contents']['removesurvey'] = array( '#type' =&gt; 'submit', '#value' =&gt; t('Remove A Survey Question'), '#submit' =&gt; array('touchpoints_metrics_survey_remove_one'), '#limit_validation_errors' =&gt; array(), '#ajax' =&gt; array( 'callback' =&gt; 'touchpoints_metrics_survey_callback', 'wrapper' =&gt; 'survey-div', ), ); } return $form; } function _get_methods($selected) { if ($selected) { $methods = db_query("SELECT * FROM {touchpoints_m_methods} WHERE mt_id=$selected") -&gt; fetchAllKeyed(0, 2); } else { $methods = array(); } return $methods; } function touchpoints_method_callback($form, &amp;$form_state) { return $form['measurementmethod']; } function touchpoints_metrics_survey_add_one($form, &amp;$form_state) { $form_state['num_surveys']++; $form_state['rebuild'] = TRUE; } function touchpoints_metrics_survey_remove_one($form, &amp;$form_state) { if ($form_state['num_surveys'] &gt; 1) { $form_state['num_surveys']--; } $form_state['rebuild'] = TRUE; } function touchpoints_metrics_survey_callback($form, &amp;$form_state) { return $form['survey']['contents']; } </code></pre>
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    1. COCan you go to Admin -> Reports -> Recent Log Entries and report the error shown there when you get the illegal choice message?
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    2. COThe message says "Illegal choice 5 in Measurement Method element." 5 was the value selected from that field when I was testing.
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