loading doi data working

includes/doi.inc

@@ -18,22 +18,26 @@
  * @return array
  *   A Drupal form with updated values.
  */
+
+use Drupal\Core\Url;
+
 function upei_roblib_ill_doi_get_data($form, $doi) {
   if (empty($doi)) {
     $doi = 'Empty DOI';
   }
   $response = upei_roblib_ill_doi_load($doi);
-  if ($response->data && strpos($response->data, "Malformed DOI") !== FALSE) {
+  $response_data = (string)$response->getBody();
+  if ($response_data && strpos($response_data, "Malformed DOI") !== FALSE) {
     //try again without parsing the doi as sometimes parsing breaks it
     $response = upei_roblib_ill_doi_load($doi, FALSE);
   }
-  $headers = array_change_key_case($response->headers);
+  $headers = array_change_key_case($response->getHeaders());
-  if ($response->data &&
+  if ($response_data &&
-    strpos($headers['content-type'], 'text/html') === FALSE &&
+    strpos($headers['content-type'][0], 'text/html') === FALSE &&
-    strpos($response->data, "Malformed DOI") === FALSE
+    strpos($response_data, "Malformed DOI") === FALSE
   ) {
     $crossref_xml = new DOMDocument('1.0');
-    if (!$crossref_xml->loadXML($response->data)) {
+    if (!$crossref_xml->loadXML($response_data)) {
       drupal_set_message(t('Error parseing DOI response, @msg'));
       return $form;
     }
@@ -159,9 +163,10 @@ function upei_roblib_ill_doi_name_from_url($doi_url) {
 function upei_roblib_ill_doi_load($doi, $parse = TRUE) {
   // Allows for $id to pass a DOI url string or the DOI name.
   $id = $parse ? upei_roblib_ill_doi_name_from_url($doi) : $doi;
-  $openurl = variable_get('upei_roblib_ill_doi_openurl', 'http://www.crossref.org/openurl');
+  $config = \Drupal::config('upei_roblib_ill.settings');
-  $openurl_pid = variable_get('upei_roblib_ill_doi_openurl_pid', 'user@example.com');
+  $openurl = 'http://www.crossref.org/openurl';
-  $url = url($openurl, [
+  $openurl_pid = $config->get('ill_doi_openurl_pid');
+  $url = Url::fromUri($openurl, [
     'query' => [
       'noredirect' => 'true',
       'pid' => $openurl_pid,
@@ -169,6 +174,7 @@ function upei_roblib_ill_doi_load($doi, $parse = TRUE) {
       'id' => ((strpos($id, 'doi:') === 0) ? $id : 'doi:' . $id),
     ],
   ]);
-  return drupal_http_request($url);
+  $response = \Drupal::httpClient()->get($url->toString());
+  return $response;
 }
 

src/Form/RoblibIllLoanForm.php

@@ -27,18 +27,6 @@ class RoblibIllLoanForm extends FormBase {
       return $this->ill_auth_form($form, $form_state);
     }
     return $this->ill_request_form($form, $form_state);
-
-    /* $values = $form_state->getValues();
-      if (empty($values)) {
-      $form_name = 'upei_roblib_ill_request_form';
-      }
-      else {
-      $form_name = 'upei_roblib_ill_auth_form';
-      }
-      $form_state->setValue('step', $from_name);
-      return $form_name === 'upei_roblib_ill_request_form' ? $this->ill_request_form($form, $form_state) :
-      $this->ill_auth_form($form, $form_state);
-     * */
   }
 
   /**
@@ -72,9 +60,10 @@ class RoblibIllLoanForm extends FormBase {
         $form_state->set('aid', $aid);
       }
     }
-    //if (empty($form_state->get('step')) && $form_state['triggering_element']['#value'] !== 'Lookup DOI' && empty($form_state->get('Title'))) {
+    $trigger = $form_state->getTriggeringElement();
-    //  form_set_error('Title', t('Journal/Book Title is required.'));
+    if (empty($form_state->get('step')) && $trigger['#value'] !== 'Lookup DOI' && empty($form_state->getValue('Title'))) {
-    //}
+      $form_state->setErrorByName('Title', t('Journal/Book Title is required.'));
+    }
   }
 
   /**
@@ -96,11 +85,14 @@ function ill_form_message_id($id) {
    *   The current state of the form.
    */
   public function submitStepOne(array &$form, FormStateInterface $form_state) {
+    $trigger = $form_state->getTriggeringElement();
+    if ($trigger['#value'] != 'Lookup DOI') {
       $form_state
         ->set('step', 2)
         ->set('request', $form_state->getValues())
         ->setRebuild(TRUE);
     }
+  }
 
   /**
    * {@inheritdoc}
@@ -122,6 +114,13 @@ function ill_form_message_id($id) {
       ]; */
   }
 
+  public function doiCallback(array &$form, FormStateInterface $form_state) {
+    module_load_include('inc', 'upei_roblib_ill', 'includes/doi');
+    $doi = $form_state->getValue('doi');
+    $form = upei_roblib_ill_doi_get_data($form, $doi);
+    return $form;
+  }
+
   /**
    * The bibliographic portion of the ILL form.
    *
@@ -177,7 +176,7 @@ function ill_form_message_id($id) {
       '#type' => 'submit',
       '#value' => 'Lookup DOI',
       '#ajax' => [
-        'callback' => 'upei_roblib_ill_doi_callback',
+        'callback' => '::doiCallback',
         'method' => 'replace',
         'wrapper' => 'upei-roblib-ill-request-form',
         'effect' => 'fade',

upei_roblib_ill.install

@@ -5,22 +5,6 @@
  */
 
 
-/**
- * Implements hook_uninstall().
- */
-function upei_roblib_ill_uninstall() {
-  $variables = [
-    'upei_roblib_ill_add_url',
-    'upei_roblib_ill_auth_url',
-    'upei_roblib_ill_relais_key',
-    'upei_roblib_ill_library_symbol',
-    'upei_roblib_ill_contact_email',
-    'upei_roblib_ill_contact_phonel',
-    'upei_roblib_ill_header_message',
-  ];
-  array_walk($variables, 'variable_del');
-}
-
 function upei_roblib_ill_update_7100() {
   db_change_field('upei_roblib_ill_request', 'isbn', 'isbn',
     array(