feat: add query operation to get the uid of the current object

Author: jnptk

backend/src/collective/blog/profiles/default/registry/plone.app.querystring.interfaces.IQueryField.xml

@@ -1,47 +1,42 @@
-<?xml version="1.0" encoding="utf-8"?>
-<registry xmlns:i18n="http://xml.zope.org/namespaces/i18n"
-          i18n:domain="collective.blog"
+<?xml version="1.0" encoding="utf-8" ?>
+<registry
+  xmlns:i18n="http://xml.zope.org/namespaces/i18n"
+  i18n:domain="collective.blog"
 >
 
   <!-- filter by authors -->
-  <records interface="plone.app.querystring.interfaces.IQueryField"
-           prefix="plone.app.querystring.field.Creator"
+  <records
+    interface="plone.app.querystring.interfaces.IQueryField"
+    prefix="plone.app.querystring.field.Creator"
   >
-    <value key="title"
-           i18n:translate=""
-    >Author</value>
-    <value key="description"
-           i18n:translate=""
+    <value key="title" i18n:translate="">Author</value>
+    <value
+      key="description"
+      i18n:translate=""
     >Categorization by Authors.</value>
     <value key="enabled">True</value>
     <value key="sortable">False</value>
-    <value key="group"
-           i18n:translate=""
-    >Blog</value>
+    <value key="group" i18n:translate="">Blog</value>
     <value key="operations">
       <element>plone.app.querystring.operation.selection.any</element>
     </value>
     <value key="vocabulary">collective.blog.authors</value>
   </records>
 
   <!-- filter by tags -->
-  <records interface="plone.app.querystring.interfaces.IQueryField"
-           prefix="plone.app.querystring.field.blog_tags"
+  <records
+    interface="plone.app.querystring.interfaces.IQueryField"
+    prefix="plone.app.querystring.field.blog_tags"
   >
-    <value key="title"
-           i18n:translate=""
-    >Blog Tag</value>
-    <value key="description"
-           i18n:translate=""
-    >Categorization by Tags.</value>
+    <value key="title" i18n:translate="">Blog Tag</value>
+    <value key="description" i18n:translate="">Categorization by Tags.</value>
     <value key="enabled">True</value>
     <value key="sortable">False</value>
-    <value key="group"
-           i18n:translate=""
-    >Blog</value>
+    <value key="group" i18n:translate="">Blog</value>
     <value key="operations">
       <element>plone.app.querystring.operation.selection.any</element>
       <element>plone.app.querystring.operation.selection.all</element>
+      <element>collective.blog.operation.selection.currentUID</element>
     </value>
     <value key="vocabulary">collective.blog.tags</value>
   </records>

backend/src/collective/blog/profiles/default/registry/plone.app.querystring.interfaces.IQueryOperation.xml

@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<registry xmlns:i18n="http://xml.zope.org/namespaces/i18n" i18n:domain="plone">
+
+  <records
+    interface="plone.app.querystring.interfaces.IQueryOperation"
+    prefix="collective.blog.operation.selection.currentUID"
+  >
+    <value key="title" i18n:translate="">Current</value>
+    <value key="description" i18n:translate="">The current Object UID</value>
+    <value key="operation">collective.blog.queryparser._currentUID</value>
+    <value key="widget" />
+  </records>
+
+</registry>

backend/src/collective/blog/queryparser.py

@@ -0,0 +1,14 @@
+from collections import namedtuple
+from Products.CMFCore.utils import getToolByName
+
+
+Row = namedtuple("Row", ["index", "operator", "values"])
+PATH_INDICES = {"path"}
+
+
+def _currentUID(context, row):
+    """Current user lookup"""
+    # placeholder
+    mt = getToolByName(context, "portal_membership")
+    user = mt.getAuthenticatedMember()
+    return {row.index: {"query": user.getId()}}