DAMO-284 | Form added.

modules/damopen_upload/damopen_upload.routing.yml

@@ -5,3 +5,11 @@ damopen_upload.upload:
     _title: 'Image upload'
   requirements:
     _permission: 'access content'
+damopen_upload.image_form:
+  path: '/upload-image-form'
+  defaults:
+    _form: '\Drupal\damopen_upload\Form\DamopenUploadForm'
+    _title: 'Upload images'
+  requirements:
+    _permission: 'access content'
+    _access: 'TRUE'

modules/damopen_upload/src/Form/DamopenUploadForm.php

@@ -0,0 +1,66 @@
+<?php
+
+namespace Drupal\damopen_upload\Form;
+
+/**
+ * @file
+ * Contains \Drupal\damopen_upload\Form\DamopenUploadForm.
+ */
+
+use Drupal\Core\Form\FormBase;
+use Drupal\Core\Form\FormStateInterface;
+use Drupal\file\Entity\File;
+
+/**
+ * Class DamopenUploadForm Provides a form for uploading files.
+ *
+ * @package Drupal\damopen_upload\Form
+ */
+class DamopenUploadForm extends FormBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getFormId() {
+    return 'student_registration_form';
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function buildForm(array $form, FormStateInterface $form_state) {
+    $form['file'] = [
+      '#type' => 'dropzonejs',
+      '#title' => $this->t('File'),
+      '#description' => $this->t('Choose a file to upload.'),
+    ];
+
+    $form['submit'] = [
+      '#type' => 'submit',
+      '#value' => $this->t('Upload'),
+    ];
+    return $form;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function submitForm(array &$form, FormStateInterface $form_state) {
+    // Save the uploaded file.
+    $files = $form_state->getValue('file');
+    // Generate unique id.
+    $upload_id = \Drupal::service('uuid')->generate();
+    foreach ($files['uploaded_files'] as $file) {
+      $file = File::create([
+        'uri' => $file['path'],
+        'status' => 0,
+      ]);
+      $file->set('field_upload_id', $upload_id);
+      dpm($upload_id);
+      $file->save();
+    }
+    // Redirect to the file listing page.
+    $form_state->setRedirect('damopen_upload.upload', ['upload_id' => $upload_id]);
+  }
+
+}