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POMath drupal module
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  1. POMath drupal module
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    copied!<p>I'm trying to learn to write drupal modules and am working on writing a simple math module <a href="http://nodeone.se/en/the-math-question-module" rel="nofollow">http://nodeone.se/en/the-math-question-module</a></p> <p>I've got the GUI down fine but seem to be having issues with the actual math. I never seem to get the correct answer because I think it loads a new set of questions before it checks the current answer.</p> <p>Here's what I have so far:</p> <pre><code> &lt;?php /** * @file * Tests users on their math skills through a series of question and answers */ /** * Implements hook_menu(). */ function math_question_menu() { // add new navigation menu item $items['math_question'] = array( 'title' =&gt; 'Math questions', 'description' =&gt; 'Test you math skills with these questions.', 'page callback' =&gt; 'drupal_get_form', 'page arguments' =&gt; array('math_question_page'), 'access callback' =&gt; 'user_access', 'access arguments' =&gt; array('administer_site_configuration'), ); return $items; } $val1 = rand(1,10); $val2 = rand(1,10); variable_set('val1', $val1); variable_set('val2', $val2); /** * Builds the form for configuring Math Questions. */ function math_question_page() { global $user; $num1 = variable_get('val1'); $num2 = variable_get('val2'); $total = $num1 + $num2; variable_set('total',$total); $form['math_question'] = array( '#type' =&gt; 'item', '#markup' =&gt; 'What is ' . $num1 . ' + ' . $num2 . ', ' . check_plain($user-&gt;name) . '?', ); $form['answer'] = array( '#type' =&gt; 'textfield', '#title' =&gt; t('Answer'), ); $form['submit'] = array( '#type' =&gt; 'submit', '#value' =&gt; t('Check my answer'), ); return $form; } function math_question_page_validate($form, $form_state) { if (empty($form['answer']['#value'])) { form_error($form['answer'], t('This field is required.')); } if ($form['answer']['#value'] == variable_get('total')) { $msg = t('Good job!'); $type = 'status'; } else { $msg = t('Try again...'); $type = 'error'; } drupal_set_message(check_plain($msg), $type); } </code></pre> <hr> <p>modified code: . . </p> <pre><code> /** * Builds the form for configuring Math Questions. */ function math_question_page() { global $user; $val1 = rand(1,10); $val2 = rand(1,10); $total = $val1 + $val2; $form['math_question'] = array( '#type' =&gt; 'item', '#markup' =&gt; 'What is ' . $val1 . ' + ' . $val2 . ', ' . check_plain($user-&gt;name) . '?', ); $form['answer'] = array( '#type' =&gt; 'textfield', '#title' =&gt; t('Answer'), ); $form['total'] = array( '#type' =&gt; 'hidden', '#value' =&gt; $total, ); $form['submit'] = array( '#type' =&gt; 'submit', '#value' =&gt; t('Check my answer'), ); return $form; } function math_question_page_validate($form, $form_state) { if (empty($form['answer']['#value'])) { form_error($form['answer'], t('This field is required.')); } if ($form['answer']['#value'] == $form['total']['#value']) { $msg = t('Good job!'); $type = 'status'; } else { $msg = t('Try again...'); $type = 'error'; } drupal_set_message(check_plain($msg), $type); } </code></pre>
 

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