fix: fix Pipeline rendering by replacing * with &ast; (#8349)

* replace * with &ast; * reno
deepset-ai · Sep 10, 2024 · 0b1f35e · 0b1f35e
1 parent f26e2fb
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diff --git a/haystack/core/pipeline/draw.py b/haystack/core/pipeline/draw.py
@@ -139,11 +139,11 @@ def _to_mermaid_text(graph: networkx.MultiDiGraph) -> str:
             connections_list.append(conn_string)
 
     input_connections = [
-        f"i{{*}} -- \"{conn_data['label']}<br><small><i>{conn_data['conn_type']}</i></small>\" --> {states[to_comp]}"
+        f"i{{&ast;}}--\"{conn_data['label']}<br><small><i>{conn_data['conn_type']}</i></small>\"--> {states[to_comp]}"
         for _, to_comp, conn_data in graph.out_edges("input", data=True)
     ]
     output_connections = [
-        f"{states[from_comp]} -- \"{conn_data['label']}<br><small><i>{conn_data['conn_type']}</i></small>\"--> o{{*}}"
+        f"{states[from_comp]}--\"{conn_data['label']}<br><small><i>{conn_data['conn_type']}</i></small>\"--> o{{&ast;}}"
         for from_comp, _, conn_data in graph.in_edges("output", data=True)
     ]
     connections = "\n".join(connections_list + input_connections + output_connections)

diff --git a/releasenotes/notes/fix-pipe-rendering-50261e0472f0d267.yaml b/releasenotes/notes/fix-pipe-rendering-50261e0472f0d267.yaml
@@ -0,0 +1,4 @@
+---
+fixes:
+  - |
+    Fix the Pipeline visualization issue due to changes in the new release of Mermaid.