Merge branch 'feature/sitename' into develop

it works.

src/Form/ModuleConfigurationForm.php

@@ -23,6 +23,7 @@ class ModuleConfigurationForm extends ConfigFormBase {
   protected function getEditableConfigNames() {
     return [
       'wcm8_siteinfo.settings',
+      'system.site',
     ];
   }
 
@@ -58,11 +59,10 @@ class ModuleConfigurationForm extends ConfigFormBase {
     $form['basic']['site_name'] = array(
       '#type' => 'textfield',
       '#title' => $this->t('Site Name'),
-      '#description' => $this->t('READ ONLY for now until this app is done. Main name for the site - it should be your college, department or organization name.'),
+      '#description' => $this->t('Main name for the site - it should be your college, department or organization name.'),
       '#size' => '60',
       '#maxlength' => '75',
       '#default_value' => $site_name,
-      '#attributes' => array('readonly' => 'readonly'),
     );
     
     $form['basic']['admin_link'] = array(
@@ -220,6 +220,8 @@ class ModuleConfigurationForm extends ConfigFormBase {
    */
   public function submitForm(array &$form, FormStateInterface $form_state) {
     $values = $form_state->getValues();
+    
+    //set config values unique to this module
     $this->config('wcm8_siteinfo.settings')
       ->set('prefix', $values['prefix'])
       ->set('admin_link', $values['admin_link'])
@@ -240,8 +242,12 @@ class ModuleConfigurationForm extends ConfigFormBase {
       ->set('instagram', $values['instagram'])
       ->set('photos', $values['photos'])
       ->save();
-
+      
+      //set site name value back to system.site
+      $this->configFactory->getEditable('system.site')
+        ->set('name', $values['site_name'])
+        ->save();
+      
     parent::submitForm($form, $form_state);
   }
-
-}
\ No newline at end of file
+}