Merge branch 'form_io' of personal:logspace-ai/langflow into form_io

src/backend/langflow/api/v1/chat.py

@@ -126,7 +126,7 @@ async def stream_build(flow_id: str):
                     params = vertex._built_object_repr()
                     valid = True
                     logger.debug(
-                        f"Building node {params[:50]}{'...' if len(params) > 50 else ''}"
+                        f"Building node {str(params)[:50]}{'...' if len(str(params)) > 50 else ''}"
                     )
                     if vertex.artifacts:
                         # The artifacts will be prompt variables

src/backend/langflow/graph/vertex/types.py

@@ -213,23 +213,27 @@ class PromptVertex(Vertex):
 
     def _built_object_repr(self):
         if (
-            self.artifacts
+            not self.artifacts
-            and self._built_object is not None
+            or self._built_object is None
-            and hasattr(self._built_object, "format")
+            or not hasattr(self._built_object, "format")
         ):
-            # We'll build the prompt with the artifacts
-            # to show the user what the prompt looks like
-            # with the variables filled in
-            artifacts = self.artifacts.copy()
-            # Remove the handle_keys from the artifacts
-            # so the prompt format doesn't break
-            artifacts.pop("handle_keys", None)
-            try:
-                return self._built_object.format(**artifacts)
-            except KeyError:
-                return super()._built_object_repr()
-        else:
             return super()._built_object_repr()
+        # We'll build the prompt with the artifacts
+        # to show the user what the prompt looks like
+        # with the variables filled in
+        artifacts = self.artifacts.copy()
+        # Remove the handle_keys from the artifacts
+        # so the prompt format doesn't break
+        artifacts.pop("handle_keys", None)
+        try:
+            template = self._built_object.format(**artifacts)
+            return (
+                template
+                if isinstance(template, str)
+                else f"{self.vertex_type}({template})"
+            )
+        except KeyError:
+            return str(self._built_object)
 
 
 class OutputParserVertex(Vertex):

src/backend/langflow/interface/initialize/loading.py

@@ -1,3 +1,4 @@
+import contextlib
 import json
 from typing import Any, Callable, Dict, List, Sequence, Type
 
@@ -196,7 +197,7 @@ def instantiate_prompt(node_type, class_object, params: Dict):
         if "tools" not in params:
             params["tools"] = []
         return ZeroShotAgent.create_prompt(**params)
-    if "MessagePromptTemplate" in node_type:
+    elif "MessagePromptTemplate" in node_type:
         # Then we only need the template
         from_template_params = {
             "template": params.pop("prompt", params.pop("template", ""))
@@ -204,12 +205,12 @@ def instantiate_prompt(node_type, class_object, params: Dict):
 
         if not from_template_params.get("template"):
             raise ValueError("Prompt template is required")
-        return class_object.from_template(**from_template_params)
+        prompt = class_object.from_template(**from_template_params)
 
-    if node_type == "ChatPromptTemplate":
+    elif node_type == "ChatPromptTemplate":
-        return class_object.from_messages(**params)
+        prompt = class_object.from_messages(**params)
-
+    else:
-    prompt = class_object(**params)
+        prompt = class_object(**params)
 
     format_kwargs: Dict[str, Any] = {}
     for input_variable in prompt.input_variables:
@@ -221,18 +222,23 @@ def instantiate_prompt(node_type, class_object, params: Dict):
                 variable, "get_format_instructions"
             ):
                 format_kwargs[input_variable] = variable.get_format_instructions()
-            # check if is a list of Document
             elif isinstance(variable, List) and all(
                 isinstance(item, Document) for item in variable
             ):
                 # Format document to contain page_content and metadata
                 # as one string separated by a newline
-                format_kwargs[input_variable] = "\n".join(
+                if len(variable) > 1:
-                    [
+                    content = "\n".join(
-                        f"Document:{item.page_content}\nMetadata:{item.metadata}"
+                        [item.page_content for item in variable if item.page_content]
-                        for item in variable
+                    )
-                    ]
+                else:
-                )
+                    content = variable[0].page_content
+                    # content could be a json list of strings
+                    with contextlib.suppress(json.JSONDecodeError):
+                        content = json.loads(content)
+                        if isinstance(content, list):
+                            content = ",".join([str(item) for item in content])
+                format_kwargs[input_variable] = content
                 # handle_keys will be a list but it does not exist yet
                 # so we need to create it
 

src/frontend/src/index.css

@@ -915,13 +915,13 @@ The cursor: default; property value restores the browser's default cursor style
   }
 
   .form-modal-lock-true {
-    @apply bg-input text-black dark:bg-gray-700 dark:text-gray-300
+    @apply bg-input text-black
   }
   .form-modal-lock-false {
-    @apply bg-white text-black dark:bg-gray-900 dark:text-gray-300
+    @apply bg-white text-black
   }
   .form-modal-lockchat {
-    @apply form-input block w-full rounded-md border-gray-300 p-4 pr-16 custom-scroll dark:border-gray-600 sm:text-sm
+    @apply form-input block w-full rounded-md border-gray-300 p-4 pr-16 custom-scroll sm:text-sm
   }
   .form-modal-send-icon-position {
     @apply absolute bottom-2 right-4
@@ -966,7 +966,7 @@ The cursor: default; property value restores the browser's default cursor style
     @apply absolute -left-6 -top-3 cursor-pointer
   }
   .form-modal-chat-icon {
-    @apply h-4 w-4 animate-bounce dark:text-white
+    @apply h-4 w-4 animate-bounce
   }
   .form-modal-chat-thought-border {
     @apply rounded-md border border-ring/60
@@ -1035,10 +1035,10 @@ The cursor: default; property value restores the browser's default cursor style
     @apply flex-max-width h-full flex-col items-center justify-center text-center align-middle
   }
   .langflow-chat-span {
-    @apply text-lg text-gray-600 dark:text-gray-300
+    @apply text-lg text-gray-600
   }
   .langflow-chat-desc {
-    @apply w-2/4 rounded-md border border-gray-200 bg-muted px-6 py-8 dark:border-gray-700 dark:bg-gray-900
+    @apply w-2/4 rounded-md border border-gray-200 bg-muted px-6 py-8
   }
   .langflow-chat-desc-span {
     @apply text-base text-gray-500