Refactor PromptComponent to convert dictionary values to strings

src/backend/langflow/components/prompts/Prompt.py

@@ -1,6 +1,7 @@
 from langchain_core.prompts import PromptTemplate
 
 from langflow import CustomComponent
+from langflow.components.prompts.base.utils import dict_values_to_string
 from langflow.field_typing import Prompt, TemplateField, Text
 
 
@@ -21,16 +22,13 @@ class PromptComponent(CustomComponent):
         **kwargs,
     ) -> Text:
         prompt_template = PromptTemplate.from_template(Text(template))
-
+        kwargs = dict_values_to_string(kwargs)
-        attributes_to_check = ["text", "page_content"]
+        kwargs = {
-        for key, value in kwargs.copy().items():
+            k: "\n".join(v) if isinstance(v, list) else v for k, v in kwargs.items()
-            for attribute in attributes_to_check:
+        }
-                if hasattr(value, attribute):
-                    kwargs[key] = getattr(value, attribute)
-
         try:
             formated_prompt = prompt_template.format(**kwargs)
         except Exception as exc:
             raise ValueError(f"Error formatting prompt: {exc}") from exc
-        self.status = f'Prompt: "{formated_prompt}"'
+        self.status = f'Prompt:\n"{formated_prompt}"'
         return formated_prompt

src/backend/langflow/components/prompts/base/utils.py

@@ -0,0 +1,55 @@
+from langchain_core.documents import Document
+
+from langflow.schema import Record
+
+
+def dict_values_to_string(d: dict) -> dict:
+    """
+    Converts the values of a dictionary to strings.
+
+    Args:
+        d (dict): The dictionary whose values need to be converted.
+
+    Returns:
+        dict: The dictionary with values converted to strings.
+    """
+    # Do something similar to the above
+    for key, value in d.items():
+        # it could be a list of records or documents or strings
+        if isinstance(value, list):
+            for i, item in enumerate(value):
+                if isinstance(item, Record):
+                    d[key][i] = record_to_string(item)
+                elif isinstance(item, Document):
+                    d[key][i] = document_to_string(item)
+        elif isinstance(value, Record):
+            d[key] = record_to_string(value)
+        elif isinstance(value, Document):
+            d[key] = document_to_string(value)
+    return d
+
+
+def record_to_string(record: Record) -> str:
+    """
+    Convert a record to a string.
+
+    Args:
+        record (Record): The record to convert.
+
+    Returns:
+        str: The record as a string.
+    """
+    return record.text
+
+
+def document_to_string(document: Document) -> str:
+    """
+    Convert a document to a string.
+
+    Args:
+        document (Document): The document to convert.
+
+    Returns:
+        str: The document as a string.
+    """
+    return document.page_content