Revert "[pricelist] delete visibleColums"

This reverts commit 2d45c0dab9.

Conflicts:
	flaschengeist/plugins/pricelist/__init__.py

flaschengeist/plugins/pricelist/__init__.py

@@ -5,6 +5,7 @@ from werkzeug.local import LocalProxy
 from werkzeug.exceptions import BadRequest, Forbidden, Unauthorized
 
 from flaschengeist import logger
+from flaschengeist.controller import userController
 from flaschengeist.plugins import Plugin
 from flaschengeist.utils.decorators import login_required, extract_session
 from flaschengeist.utils.HTTP import no_content
@@ -535,6 +536,39 @@ def post_pricelist_settings_min_prices(current_session):
     return no_content()
 
 
+
+@PriceListPlugin.blueprint.route("/users/<userid>/pricecalc_columns", methods=["GET", "PUT"])
+@login_required()
+def get_columns(userid, current_session):
+    """Get pricecalc_columns of an user
+
+    Route: ``/users/<userid>/pricelist/pricecac_columns`` | Method: ``GET`` or ``PUT``
+    POST-data: On ``PUT`` json encoded array of floats
+
+    Args:
+        userid: Userid identifying the user
+        current_session: Session sent with Authorization Header
+
+    Returns:
+        GET: JSON object containing the shortcuts as float array or HTTP error
+        PUT: HTTP-created or HTTP error
+    """
+    if userid != current_session.user_.userid:
+        raise Forbidden
+
+    user = userController.get_user(userid)
+    if request.method == "GET":
+        return jsonify(user.get_attribute("pricecalc_columns", []))
+    else:
+        data = request.get_json()
+        if not isinstance(data, list) or not all(isinstance(n, str) for n in data):
+            raise BadRequest
+        data.sort(reverse=True)
+        user.set_attribute("pricecalc_columns", data)
+        userController.persist()
+        return no_content()
+
+
 @PriceListPlugin.blueprint.route("/drinks/<int:identifier>/picture", methods=["POST", "GET", "DELETE"])
 @login_required(permission=permissions.EDIT)
 def set_picture(identifier, current_session):