Enhance Article editor 2

app/__init__.py

@@ -39,7 +39,7 @@ def create_app(config_name=None):
     login_manager.login_message_category = 'info'
 
     # ── Upload directory ──────────────────────────────────────────────────────
-    upload_dir = app.config.get('UPLOAD_FOLDER', 'app/static/uploads')
+    upload_dir = app.config['UPLOAD_FOLDER']   # always absolute — set in config.py
     os.makedirs(upload_dir, exist_ok=True)
 
     # ── Logging ───────────────────────────────────────────────────────────────

app/routes/admin.py

@@ -212,7 +212,7 @@ def _save_kb_file(file, article_id):
     filename    = secure_filename(file.filename)
     ext         = filename.rsplit('.', 1)[1].lower() if '.' in filename else 'bin'
     stored_name = f"{uuid.uuid4().hex}.{ext}"
-    upload_dir  = current_app.config.get('UPLOAD_FOLDER', 'app/static/uploads')
+    upload_dir  = current_app.config['UPLOAD_FOLDER']
     os.makedirs(upload_dir, exist_ok=True)
     filepath = os.path.join(upload_dir, stored_name)
     file.save(filepath)
@@ -245,11 +245,12 @@ def kb_upload_image():
         return jsonify({'error': 'Only image files are accepted (PNG, JPG, GIF, WEBP)'}), 400
 
     stored_name = f"{uuid.uuid4().hex}.{ext}"
-    upload_dir  = current_app.config.get('UPLOAD_FOLDER', 'app/static/uploads')
+    upload_dir  = current_app.config['UPLOAD_FOLDER']
     os.makedirs(upload_dir, exist_ok=True)
     f.save(os.path.join(upload_dir, stored_name))
     logger.info(f'[KB IMAGE UPLOAD] stored_name={stored_name} by user_id={current_user.id}')
-    return jsonify({'location': f'/admin/kb/files/{stored_name}'})
+    location = url_for('admin.kb_serve_file', stored_name=stored_name)
+    return jsonify({'location': location})
 
 
 # ── File-serve route (images embedded in articles + attachment downloads) ─────
@@ -258,7 +259,7 @@ def kb_upload_image():
 @login_required
 def kb_serve_file(stored_name):
     """Serve a KB attachment file. Login required — no public access."""
-    upload_dir = current_app.config.get('UPLOAD_FOLDER', 'app/static/uploads')
+    upload_dir = current_app.config['UPLOAD_FOLDER']
     return send_from_directory(upload_dir, stored_name)
 
 
@@ -269,7 +270,7 @@ def kb_serve_file(stored_name):
 @it_required
 def kb_delete_attachment(article_id, att_id):
     att = KBAttachment.query.filter_by(id=att_id, article_id=article_id).first_or_404()
-    upload_dir = current_app.config.get('UPLOAD_FOLDER', 'app/static/uploads')
+    upload_dir = current_app.config['UPLOAD_FOLDER']
     filepath = os.path.join(upload_dir, att.stored_name)
     if os.path.exists(filepath):
         os.remove(filepath)
@@ -278,10 +279,33 @@ def kb_delete_attachment(article_id, att_id):
     logger.info(f'[KB ATTACHMENT DELETE] att_id={att.id} article_id={article_id} by user_id={current_user.id}')
     db.session.delete(att)
     db.session.commit()
-    flash(f'Attachment "{att.filename}" deleted.', 'success')
-    return redirect(url_for('admin.kb_edit', article_id=article_id))
+    logger.info(f'[KB ATTACHMENT DELETE] att_id={att.id} article_id={article_id} completed')
+    # Return JSON so the edit page can remove the row without a full reload
+    return jsonify({'ok': True, 'att_id': att.id})
 
 
+
+@admin_bp.route('/kb/<int:article_id>/attachments', methods=['GET'])
+@login_required
+@it_required
+def kb_get_attachments(article_id):
+    """Return current attachment list as JSON for dynamic UI refresh."""
+    from app.models import KBAttachment
+    atts = KBAttachment.query.filter_by(article_id=article_id).all()
+    return jsonify({'attachments': [
+        {
+            'id':          a.id,
+            'filename':    a.filename,
+            'stored_name': a.stored_name,
+            'file_size':   a.file_size,
+            'mime_type':   a.mime_type or '',
+            'url':         url_for('admin.kb_serve_file', stored_name=a.stored_name),
+            'delete_url':  url_for('admin.kb_delete_attachment',
+                                   article_id=article_id, att_id=a.id),
+        }
+        for a in atts
+    ]})
+
 # ── Create article ─────────────────────────────────────────────────────────────
 
 @admin_bp.route('/kb/new', methods=['GET', 'POST'])
@@ -289,6 +313,7 @@ def kb_delete_attachment(article_id, att_id):
 @it_required
 def kb_new():
     if request.method == 'POST':
+        try:
             article = KnowledgeBase(
                 title       = request.form.get('title', '').strip(),
                 body        = request.form.get('body', '').strip(),
@@ -298,7 +323,7 @@ def kb_new():
                 is_published= bool(request.form.get('is_published')) and not bool(request.form.get('_save_as_draft')),
             )
             db.session.add(article)
-        db.session.flush()   # get article.id before saving attachments
+            db.session.flush()
 
             for f in request.files.getlist('attachments'):
                 if f and f.filename and _kb_allowed(f.filename):
@@ -310,10 +335,11 @@ def kb_new():
                        f'title={article.title}')
             logger.info(f'[KB CREATE] article_id={article.id} by user_id={current_user.id}')
             flash('Article created successfully.', 'success')
-        # XHR fetch submit: return JSON so JS can redirect to the final URL
-        if request.headers.get('X-Requested-With') == 'XMLHttpRequest' or            'multipart/form-data' in request.content_type:
-            return jsonify({'redirect': url_for('admin.kb_list')})
-        return redirect(url_for('admin.kb_list'))
+            return jsonify({'ok': True, 'article_id': article.id, 'redirect': url_for('admin.kb_list')})
+        except Exception as exc:
+            db.session.rollback()
+            logger.error(f'[KB CREATE ERROR] {exc}')
+            return jsonify({'error': str(exc)}), 500
     return render_template('admin/kb_edit.html', article=None)
 
 
@@ -325,6 +351,7 @@ def kb_new():
 def kb_edit(article_id):
     article = KnowledgeBase.query.get_or_404(article_id)
     if request.method == 'POST':
+        try:
             article.title       = request.form.get('title', article.title).strip()
             article.body        = request.form.get('body', article.body).strip()
             article.category    = request.form.get('category', article.category)
@@ -340,10 +367,11 @@ def kb_edit(article_id):
             log_action(current_user.id, 'kb_edit', 'knowledge_base', article.id)
             logger.info(f'[KB EDIT] article_id={article.id} by user_id={current_user.id}')
             flash('Article updated successfully.', 'success')
-        # XHR fetch submit: return JSON so JS can redirect to the final URL
-        if request.headers.get('X-Requested-With') == 'XMLHttpRequest' or            'multipart/form-data' in request.content_type:
-            return jsonify({'redirect': url_for('admin.kb_list')})
-        return redirect(url_for('admin.kb_list'))
+            return jsonify({'ok': True, 'article_id': article.id, 'redirect': url_for('admin.kb_list')})
+        except Exception as exc:
+            db.session.rollback()
+            logger.error(f'[KB EDIT ERROR] {exc}')
+            return jsonify({'error': str(exc)}), 500
     return render_template('admin/kb_edit.html', article=article)
 
 

app/templates/admin/kb_edit.html

@@ -40,7 +40,9 @@
         {% if article %}Edit: {{ article.title[:50] }}{% else %}Create New Article{% endif %}
       </div>
       <div class="card-body">
-        <form method="POST" enctype="multipart/form-data" id="kb-form">
+        <form method="POST" enctype="multipart/form-data" id="kb-form"
+              data-article-id="{{ article.id if article else '' }}"
+              data-atts-url="{{ url_for('admin.kb_get_attachments', article_id=article.id) if article else '' }}">
           <div class="mb-3">
             <label class="form-label">Title *</label>
             <input type="text" class="form-control" name="title" required
@@ -50,7 +52,7 @@
           </div>
           <div class="mb-3">
             <label class="form-label">Content *</label>
-            <textarea name="body" id="kb-body" required>{{ article.body if article else '' }}</textarea>
+            <textarea name="body" id="kb-body">{{ article.body if article else '' }}</textarea>
           </div>
           <div class="mb-3">
             <label class="form-label">
@@ -79,33 +81,15 @@
             </div>
           </div>
           {% if article %}
-            {% set existing = article.attachments.all() %}
-            {% if existing %}
-            <div class="mb-3">
+          <!-- Existing attachments — rendered dynamically by JS so they update
+               after save/delete without a full page reload -->
+          <div class="mb-3" id="existing-atts-wrap">
             <label class="form-label">Existing Attachments</label>
-              <div style="display:flex;flex-direction:column;gap:6px;">
-                {% for att in existing %}
-                <div class="att-item">
-                  <i class="bi bi-{% if att.mime_type and 'image' in att.mime_type %}image{% elif att.mime_type and 'pdf' in att.mime_type %}file-earmark-pdf{% else %}file-earmark{% endif %} att-icon"></i>
-                  <span class="att-name">
-                    <a href="{{ url_for('admin.kb_serve_file', stored_name=att.stored_name) }}"
-                       target="_blank" style="color:var(--accent);">{{ att.filename }}</a>
-                  </span>
-                  <span class="att-size">{{ (att.file_size / 1024)|int }} KB</span>
-                  <form method="POST"
-                        action="{{ url_for('admin.kb_delete_attachment', article_id=article.id, att_id=att.id) }}"
-                        onsubmit="return confirm('Delete {{ att.filename }}?');" style="margin:0;">
-                    <button type="submit" class="btn btn-sm"
-                            style="background:none;border:none;color:var(--danger);padding:2px 6px;" title="Delete">
-                      <i class="bi bi-trash"></i>
-                    </button>
-                  </form>
-                </div>
-                {% endfor %}
+            <div id="existing-atts-list" style="display:flex;flex-direction:column;gap:6px;">
+              <!-- Populated by renderExistingAtts() on page load and after each save/delete -->
             </div>
           </div>
           {% endif %}
-          {% endif %}
           <div class="mb-4">
             <label style="display:flex;align-items:center;gap:10px;cursor:pointer;">
               <input type="checkbox" name="is_published"
@@ -199,6 +183,7 @@
 
 {% block scripts %}
 <script>
+// ── TinyMCE 6 ─────────────────────────────────────────────────────────────────
 tinymce.init({
   selector: '#kb-body',
   height: 520,
@@ -257,32 +242,25 @@ tinymce.init({
     .callout-tip     { background:#ecfdf5; border:1px solid #a7f3d0; border-radius:8px; padding:14px 16px; margin:1em 0; }
     hr { border:none; border-top:1px solid #e2e8f0; margin:2em 0; }
   `,
-  images_upload_url: '/admin/kb/upload-image',
-  images_upload_handler: async (blobInfo, progress) => {
-    return new Promise((resolve, reject) => {
-      const xhr = new XMLHttpRequest();
-      xhr.open('POST', '/admin/kb/upload-image');
-      xhr.upload.onprogress = (e) => { if (e.lengthComputable) progress(e.loaded / e.total * 100); };
-      xhr.onload = () => {
-        if (xhr.status !== 200) { reject({ message: `Upload failed (HTTP ${xhr.status})`, remove: true }); return; }
-        try {
-          const json = JSON.parse(xhr.responseText);
-          if (json.location) resolve(json.location);
-          else reject({ message: json.error || 'Upload failed', remove: true });
-        } catch { reject({ message: 'Invalid server response', remove: true }); }
-      };
-      xhr.onerror = () => reject({ message: 'Network error during upload', remove: true });
+  images_upload_handler: (blobInfo, progress) => new Promise((resolve, reject) => {
     const fd = new FormData();
     fd.append('file', blobInfo.blob(), blobInfo.filename());
-      xhr.send(fd);
-    });
-  },
+    fetch('/admin/kb/upload-image', { method: 'POST', credentials: 'same-origin', body: fd })
+      .then(r => { if (!r.ok) throw new Error('HTTP ' + r.status); return r.json(); })
+      .then(j => { if (j.location) resolve(j.location); else reject({ message: j.error || 'Upload failed', remove: true }); })
+      .catch(err => reject({ message: String(err), remove: true }));
+  }),
   paste_data_images: true,
+  // Prevent TinyMCE from converting absolute image URLs to relative paths.
+  // Without this, '/admin/kb/files/abc.png' gets stored as a relative path
+  // like '../../kb/files/abc.png' which breaks on any other page.
+  convert_urls: false,
+  relative_urls: false,
+  remove_script_host: false,
   image_advtab: true,
   image_caption: true,
   table_default_attributes: { border: '0' },
   table_default_styles: { 'border-collapse': 'collapse', width: '100%' },
-  table_responsive_width: true,
   link_default_target: '_blank',
   link_assume_external_targets: true,
   codesample_languages: [
@@ -295,117 +273,181 @@ tinymce.init({
     { text: 'PowerShell', value: 'powershell' },
     { text: 'Plain text', value: 'none'       },
   ],
-  setup: (editor) => { editor.on('change', () => editor.save()); },
+  setup: editor => {
+    editor.on('change keyup undo redo', () => editor.save());
+  },
 });
 
-function saveDraft() {
-  tinymce.triggerSave();
-  // Temporarily uncheck is_published, submit, then immediately restore so the
-  // checkbox state is not left unchecked if the user stays on the page.
-  const cb = document.querySelector('input[name="is_published"]');
-  const wasChecked = cb ? cb.checked : false;
-  if (cb) cb.checked = false;
-  // Use a hidden input to explicitly send is_published=0 so the backend
-  // receives a definitive falsy value regardless of checkbox behaviour.
-  let hidden = document.getElementById('_draft_flag');
-  if (!hidden) {
-    hidden = document.createElement('input');
-    hidden.type  = 'hidden';
-    hidden.id    = '_draft_flag';
-    hidden.name  = '_save_as_draft';
-    hidden.value = '1';
-    document.getElementById('kb-form').appendChild(hidden);
-  }
-  document.getElementById('kb-form').submit();
-  // Restore (runs if submit is cancelled by browser validation)
-  if (cb) cb.checked = wasChecked;
-}
-
-// ── File staging ─────────────────────────────────────────────────────────────
-// Root cause of the multi-file bug: assigning to input.files via DataTransfer
-// is unreliable across browsers (read-only in Firefox/Safari).
-// Fix: keep ALL staged files only in the DataTransfer object; on submit build
-// a FormData manually and POST via fetch — bypassing input.files entirely.
+// ── Article state ─────────────────────────────────────────────────────────────
+const form      = document.getElementById('kb-form');
+// article_id is '' for new articles, a number string for existing ones
+let articleId   = form.dataset.articleId || '';
+let attsUrl     = form.dataset.attsUrl   || '';
 
+// ── File staging (pending new uploads) ───────────────────────────────────────
 const dropZone    = document.getElementById('drop-zone');
 const attInput    = document.getElementById('att-input');
 const fileList    = document.getElementById('file-list');
-let stagedFiles = new DataTransfer();
+let   pendingFiles = [];
 
-function renderFileList() {
+function renderPendingList() {
   fileList.innerHTML = '';
-  const files = stagedFiles.files;
-  for (let i = 0; i < files.length; i++) {
-    const f = files[i];
+  pendingFiles.forEach((f, i) => {
     const div = document.createElement('div');
     div.className = 'pending-file';
-    div.innerHTML = `<i class="bi bi-${getFileIcon(f.name)}" style="color:var(--accent);font-size:16px;flex-shrink:0;"></i>
-      <span class="pf-name">${escHtml(f.name)}</span>
-      <span class="pf-size">${formatSize(f.size)}</span>
-      <button type="button" class="pf-remove" onclick="removeFile(${i})" title="Remove">&times;</button>`;
+    div.innerHTML =
+      '<i class="bi bi-' + getFileIcon(f.name) + '" style="color:var(--accent);font-size:16px;flex-shrink:0;"></i>' +
+      '<span class="pf-name">' + escHtml(f.name) + '</span>' +
+      '<span class="pf-size">' + formatSize(f.size) + '</span>' +
+      '<button type="button" class="pf-remove" onclick="removePending(' + i + ')" title="Remove">&times;</button>';
     fileList.appendChild(div);
-  }
+  });
 }
 
-function removeFile(idx) {
-  const newDt = new DataTransfer();
-  const files = stagedFiles.files;
-  for (let i = 0; i < files.length; i++) { if (i !== idx) newDt.items.add(files[i]); }
-  stagedFiles = newDt;
-  renderFileList();
-}
+function removePending(idx) { pendingFiles.splice(idx, 1); renderPendingList(); }
 
-function addFiles(newFiles) {
-  for (const f of newFiles) {
-    if (f.size > 16 * 1024 * 1024) { alert(`"${f.name}" exceeds the 16 MB limit and was skipped.`); continue; }
-    stagedFiles.items.add(f);
-  }
-  // Reset the picker so the same file can be picked again if needed
+function addFiles(list) {
+  Array.from(list).forEach(f => {
+    if (f.size > 16 * 1024 * 1024) { alert('"' + f.name + '" exceeds 16 MB and was skipped.'); return; }
+    if (!pendingFiles.some(p => p.name === f.name && p.size === f.size)) pendingFiles.push(f);
+  });
   attInput.value = '';
-  renderFileList();
+  renderPendingList();
 }
 
 attInput.addEventListener('change', () => addFiles(attInput.files));
-dropZone.addEventListener('dragover',  (e) => { e.preventDefault(); dropZone.classList.add('dragover'); });
+dropZone.addEventListener('dragover',  e => { e.preventDefault(); dropZone.classList.add('dragover'); });
 dropZone.addEventListener('dragleave', ()  => dropZone.classList.remove('dragover'));
-dropZone.addEventListener('drop', (e) => { e.preventDefault(); dropZone.classList.remove('dragover'); addFiles(e.dataTransfer.files); });
+dropZone.addEventListener('drop',      e  => { e.preventDefault(); dropZone.classList.remove('dragover'); addFiles(e.dataTransfer.files); });
 
-// ── Form submit via fetch (fixes multi-file upload) ───────────────────────────
-document.getElementById('kb-form').addEventListener('submit', async function (e) {
-  e.preventDefault();
+// ── Existing attachments: render + async delete ───────────────────────────────
 
-  // Sync TinyMCE content into the hidden textarea before building FormData
-  tinymce.triggerSave();
-
-  const form    = this;
-  const saveBtn = document.getElementById('save-btn');
-  const origTxt = saveBtn.innerHTML;
-  saveBtn.disabled  = true;
-  saveBtn.innerHTML = '<span class="spinner-border spinner-border-sm me-2"></span>Saving…';
-
-  // Build FormData from the form fields
-  const fd = new FormData(form);
-
-  // Append every staged file under the key "attachments"
-  // This is the reliable path — FormData.append() bypasses input.files entirely
-  const staged = stagedFiles.files;
-  for (let i = 0; i < staged.length; i++) {
-    fd.append('attachments', staged[i], staged[i].name);
+function attFileIcon(mimeType) {
+  if (!mimeType) return 'file-earmark';
+  if (mimeType.startsWith('image/'))       return 'image';
+  if (mimeType.includes('pdf'))            return 'file-earmark-pdf';
+  if (mimeType.includes('word'))           return 'file-earmark-word';
+  if (mimeType.includes('excel') || mimeType.includes('spreadsheet')) return 'file-earmark-excel';
+  if (mimeType.includes('zip'))            return 'file-earmark-zip';
+  return 'file-earmark';
 }
 
-  // Show progress bar
+function renderExistingAtts(atts) {
+  const wrap = document.getElementById('existing-atts-wrap');
+  const list = document.getElementById('existing-atts-list');
+  if (!wrap || !list) return;
+
+  if (!atts || atts.length === 0) {
+    wrap.style.display = 'none';
+    return;
+  }
+  wrap.style.display = 'block';
+  list.innerHTML = '';
+
+  atts.forEach(att => {
+    const row = document.createElement('div');
+    row.className = 'att-item';
+    row.id = 'att-row-' + att.id;
+    row.innerHTML =
+      '<i class="bi bi-' + attFileIcon(att.mime_type) + ' att-icon"></i>' +
+      '<span class="att-name"><a href="' + att.url + '" target="_blank" style="color:var(--accent);">' + escHtml(att.filename) + '</a></span>' +
+      '<span class="att-size">' + formatSize(att.file_size) + '</span>' +
+      '<button type="button" class="btn btn-sm" onclick="deleteAtt(' + att.id + ',\'' + att.delete_url + '\',\'' + escHtml(att.filename) + '\')" ' +
+        'style="background:none;border:none;color:var(--danger);padding:2px 6px;" title="Delete attachment">' +
+        '<i class="bi bi-trash"></i></button>';
+    list.appendChild(row);
+  });
+}
+
+function loadExistingAtts() {
+  if (!attsUrl) return;
+  fetch(attsUrl, { credentials: 'same-origin' })
+    .then(r => r.json())
+    .then(data => renderExistingAtts(data.attachments))
+    .catch(() => {});
+}
+
+function deleteAtt(attId, deleteUrl, filename) {
+  if (!confirm('Delete "' + filename + '"?')) return;
+
+  const row = document.getElementById('att-row-' + attId);
+  if (row) { row.style.opacity = '0.4'; row.style.pointerEvents = 'none'; }
+
+  fetch(deleteUrl, { method: 'POST', credentials: 'same-origin' })
+    .then(r => r.json())
+    .then(data => {
+      if (data.ok) {
+        if (row) row.remove();
+        // Hide the section header if no attachments remain
+        const list = document.getElementById('existing-atts-list');
+        if (list && list.children.length === 0) {
+          const wrap = document.getElementById('existing-atts-wrap');
+          if (wrap) wrap.style.display = 'none';
+        }
+        showToast('Attachment deleted.', 'success');
+      } else {
+        if (row) { row.style.opacity = ''; row.style.pointerEvents = ''; }
+        alert('Delete failed. Please try again.');
+      }
+    })
+    .catch(() => {
+      if (row) { row.style.opacity = ''; row.style.pointerEvents = ''; }
+      alert('Network error. Please try again.');
+    });
+}
+
+// Load existing attachments on page load (only for edit mode)
+if (articleId) loadExistingAtts();
+
+// ── Save handler ──────────────────────────────────────────────────────────────
+function doSave(asDraft) {
+  // Flush TinyMCE content to textarea first
+  const editor = tinymce.get('kb-body');
+  if (editor) editor.save();
+
+  // Validate
+  const titleEl    = document.querySelector('#kb-form [name="title"]');
+  const bodyEl     = document.getElementById('kb-body');
+  const categoryEl = document.querySelector('[name="category"]');
+  const tagsEl     = document.querySelector('[name="tags"]');
+  const publishEl  = document.querySelector('[name="is_published"]');
+
+  const title    = titleEl    ? titleEl.value.trim()    : '';
+  const body     = bodyEl     ? bodyEl.value.trim()     : '';
+  const category = categoryEl ? categoryEl.value        : '';
+  const tags     = tagsEl     ? tagsEl.value.trim()     : '';
+
+  if (!title) { alert('Please enter a title.'); if (titleEl) titleEl.focus(); return; }
+  const emptyBody = !body || body === '<p></p>' || body === '<p><br></p>' || body === '<p><br data-mce-bogus="1"></p>';
+  if (emptyBody) { alert('Please add some content to the article body.'); return; }
+
+  // Build FormData explicitly — avoids hidden-element issues with FormData(form)
+  const fd = new FormData();
+  fd.append('title',    title);
+  fd.append('body',     body);
+  fd.append('category', category);
+  fd.append('tags',     tags);
+  if (!asDraft && publishEl && publishEl.checked) fd.append('is_published', 'on');
+  if (asDraft)  fd.append('_save_as_draft', '1');
+  pendingFiles.forEach(f => fd.append('attachments', f, f.name));
+
+  // UI feedback
+  const btn     = document.getElementById('save-btn');
+  const origTxt = btn.innerHTML;
+  btn.disabled  = true;
+  btn.innerHTML = '<span class="spinner-border spinner-border-sm me-2" role="status"></span>Saving\u2026';
+
   const progressWrap = document.getElementById('upload-progress');
   const progressBar  = document.getElementById('upload-bar');
   const progressPct  = document.getElementById('upload-pct');
-  if (staged.length > 0) progressWrap.style.display = 'block';
 
-  try {
-    await new Promise((resolve, reject) => {
   const xhr = new XMLHttpRequest();
-      xhr.open('POST', form.action || window.location.href);
+  xhr.open('POST', window.location.pathname);
+  xhr.withCredentials = true;
 
-      xhr.upload.onprogress = (ev) => {
-        if (ev.lengthComputable) {
+  xhr.upload.onprogress = ev => {
+    if (ev.lengthComputable && pendingFiles.length > 0) {
+      progressWrap.style.display = 'block';
       const pct = Math.round(ev.loaded / ev.total * 100);
       progressBar.style.width  = pct + '%';
       progressPct.textContent  = pct + '%';
@@ -413,56 +455,87 @@ document.getElementById('kb-form').addEventListener('submit', async function (e)
   };
 
   xhr.onload = () => {
+    btn.disabled  = false;
+    btn.innerHTML = origTxt;
+    progressWrap.style.display = 'none';
+    progressBar.style.width  = '0%';
+
     if (xhr.status >= 200 && xhr.status < 400) {
       try {
-            // Backend returns {redirect: "/admin/kb"} for fetch submissions
         const json = JSON.parse(xhr.responseText);
-            if (json.redirect) { resolve(json.redirect); return; }
-          } catch (_) { /* not JSON — fall through */ }
-          // Fallback: use the final response URL (after any server-side redirect)
-          resolve(xhr.responseURL || window.location.href);
+        if (json.error) { alert('Server error: ' + json.error); return; }
+
+        // ── Issue 3 fix: stay on the page ─────────────────────────────────
+        showToast(asDraft ? 'Saved as draft.' : 'Changes saved!', 'success');
+
+        // Update article ID + attachments URL if this was a new article
+        if (json.article_id && !articleId) {
+          articleId = String(json.article_id);
+          form.dataset.articleId = articleId;
+          attsUrl = '/admin/kb/' + articleId + '/attachments';
+          form.dataset.attsUrl = attsUrl;
+          // Update browser URL to the edit URL without reloading
+          history.replaceState(null, '', '/admin/kb/' + articleId + '/edit');
+          // Update page title and header
+          const header = document.querySelector('.card-header');
+          if (header) header.innerHTML = '<i class="bi bi-pencil me-2"></i>Edit Article';
+          const saveBtn2 = document.getElementById('save-btn');
+          if (saveBtn2) saveBtn2.innerHTML = '<i class="bi bi-check2 me-2"></i>Save Changes';
+        }
+
+        // Clear pending files and refresh existing list
+        pendingFiles = [];
+        renderPendingList();
+        if (articleId) loadExistingAtts();
+
+      } catch (_) {
+        // Non-JSON response — still treat as success
+        showToast('Saved!', 'success');
+        pendingFiles = [];
+        renderPendingList();
+        if (articleId) loadExistingAtts();
+      }
     } else {
-          reject(new Error(`Server returned ${xhr.status}`));
+      alert('Save failed (HTTP ' + xhr.status + '). Please try again.');
     }
   };
-      xhr.onerror = () => reject(new Error('Network error'));
+
+  xhr.onerror = () => {
+    btn.disabled  = false;
+    btn.innerHTML = origTxt;
+    progressWrap.style.display = 'none';
+    alert('Network error. Please check your connection and try again.');
+  };
 
   xhr.send(fd);
-
-      // Store responseURL for redirect after onload
-      xhr._resolve = resolve;
-    }).then((redirectUrl) => {
-      window.location.href = redirectUrl;
-    });
-  } catch (err) {
-    progressWrap.style.display = 'none';
-    saveBtn.disabled  = false;
-    saveBtn.innerHTML = origTxt;
-    alert('Upload failed: ' + err.message + '\nPlease try again.');
-  }
-});
-
-// saveDraft submits via the same fetch path — just flips the checkbox first
-function saveDraft() {
-  tinymce.triggerSave();
-  const cb = document.querySelector('input[name="is_published"]');
-  const wasChecked = cb ? cb.checked : false;
-  if (cb) cb.checked = false;
-  let hidden = document.getElementById('_draft_flag');
-  if (!hidden) {
-    hidden = document.createElement('input');
-    hidden.type  = 'hidden';
-    hidden.id    = '_draft_flag';
-    hidden.name  = '_save_as_draft';
-    hidden.value = '1';
-    document.getElementById('kb-form').appendChild(hidden);
-  }
-  // Trigger the fetch-based submit handler
-  document.getElementById('kb-form').dispatchEvent(new Event('submit', { bubbles: true, cancelable: true }));
-  if (cb) cb.checked = wasChecked;
 }
 
-function formatSize(b) { if(b<1024) return b+' B'; if(b<1048576) return (b/1024).toFixed(1)+' KB'; return (b/1048576).toFixed(1)+' MB'; }
+// Intercept native form submit
+document.getElementById('kb-form').addEventListener('submit', e => { e.preventDefault(); doSave(false); });
+document.getElementById('save-btn').onclick = e => { e.preventDefault(); doSave(false); };
+function saveDraft() { doSave(true); }
+
+// ── Toast notification ────────────────────────────────────────────────────────
+function showToast(message, type) {
+  const t = document.createElement('div');
+  const bg = type === 'success' ? 'var(--success-bg)' : 'var(--danger-bg)';
+  const border = type === 'success' ? 'var(--success)' : 'var(--danger)';
+  const color  = type === 'success' ? 'var(--success)' : 'var(--danger)';
+  t.style.cssText =
+    'position:fixed;bottom:90px;right:28px;z-index:9999;' +
+    'background:' + bg + ';border:1px solid ' + border + ';color:' + color + ';' +
+    'border-radius:8px;padding:12px 20px;font-size:14px;font-weight:600;' +
+    'box-shadow:0 4px 16px rgba(0,0,0,.1);animation:slideInRight .2s ease;';
+  t.textContent = message;
+  document.body.appendChild(t);
+  setTimeout(() => {
+    t.style.animation = 'fadeOut .2s ease forwards';
+    setTimeout(() => t.remove(), 200);
+  }, 2500);
+}
+
+// ── Helpers ───────────────────────────────────────────────────────────────────
+function formatSize(b) { return b<1024?b+' B':b<1048576?(b/1024).toFixed(1)+' KB':(b/1048576).toFixed(1)+' MB'; }
 function escHtml(s)    { return s.replace(/&/g,'&amp;').replace(/</g,'&lt;').replace(/>/g,'&gt;'); }
 function getFileIcon(n) {
   const e = n.split('.').pop().toLowerCase();
@@ -472,4 +545,8 @@ function getFileIcon(n) {
           csv:'file-earmark-spreadsheet',txt:'file-earmark-text',log:'file-earmark-text'}[e]||'file-earmark';
 }
 </script>
+<style>
+@keyframes slideInRight { from { transform:translateX(60px); opacity:0; } to { transform:translateX(0); opacity:1; } }
+@keyframes fadeOut      { from { opacity:1; } to { opacity:0; } }
+</style>
 {% endblock %}

config/config.py

@@ -31,7 +31,15 @@ class Config:
     APP_BASE_URL = os.environ.get('APP_BASE_URL', 'http://localhost:5000')
 
     # Uploads
-    UPLOAD_FOLDER = os.environ.get('UPLOAD_FOLDER', 'app/static/uploads')
+    # UPLOAD_FOLDER must be an absolute path so that save (os.path.join) and
+    # serve (send_from_directory) always resolve to the same directory regardless
+    # of the process CWD. The default anchors to the project root via __file__.
+    _project_root = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+    _raw_upload   = os.environ.get('UPLOAD_FOLDER', '')
+    UPLOAD_FOLDER = (
+        _raw_upload if (_raw_upload and os.path.isabs(_raw_upload))
+        else os.path.join(_project_root, 'app', 'static', 'uploads')
+    )
     MAX_CONTENT_LENGTH = int(os.environ.get('MAX_CONTENT_LENGTH', 16 * 1024 * 1024))
     ALLOWED_EXTENSIONS = {'png', 'jpg', 'jpeg', 'gif', 'pdf', 'doc', 'docx', 'txt', 'zip', 'log'}