fix: only show public and user's private blocks in dropdown

frappe/desk/doctype/custom_html_block/custom_html_block.py

@@ -1,9 +1,25 @@
 # Copyright (c) 2023, Frappe Technologies and contributors
 # For license information, please see license.txt
 
-# import frappe
+import frappe
 from frappe.model.document import Document
+from frappe.query_builder.utils import DocType
 
 
 class CustomHTMLBlock(Document):
 	pass
+
+
+@frappe.whitelist()
+def get_custom_blocks_for_user(doctype, txt, searchfield, start, page_len, filters):
+	# return logged in users private blocks and all public blocks
+	customHTMLBlock = DocType("Custom HTML Block")
+
+	condition_query = frappe.qb.get_query(customHTMLBlock)
+
+	return (
+		condition_query.select(customHTMLBlock.name).where(
+			(customHTMLBlock.private == 0)
+			| ((customHTMLBlock.owner == frappe.session.user) & (customHTMLBlock.private == 1))
+		)
+	).run()

frappe/public/js/frappe/widgets/widget_dialog.js

@@ -715,6 +715,11 @@ class CustomBlockDialog extends WidgetDialog {
 				label: "Custom Block Name",
 				options: "Custom HTML Block",
 				reqd: 1,
+				get_query: () => {
+					return {
+						query: "frappe.desk.doctype.custom_html_block.custom_html_block.get_custom_blocks_for_user",
+					};
+				},
 			},
 		];
 	}