fix: change field to templatefield

This is done to avoid conflict with pydantic

src/backend/langflow/interface/base.py

@@ -3,7 +3,7 @@ from typing import Any, Dict, List, Optional
 
 from pydantic import BaseModel
 
-from langflow.template.base import Field, FrontendNode, Template
+from langflow.template.base import TemplateField, FrontendNode, Template
 
 # Assuming necessary imports for Field, Template, and FrontendNode classes
 
@@ -43,7 +43,7 @@ class LangChainTypeCreator(BaseModel, ABC):
         if signature is None:
             raise ValueError(f"{name} not found")
         fields = [
-            Field(
+            TemplateField(
                 name=key,
                 field_type=value["type"],
                 required=value.get("required", False),

src/backend/langflow/interface/toolkits/base.py

@@ -47,13 +47,14 @@ class ToolkitCreator(LangChainTypeCreator):
     def to_list(self) -> List[str]:
         return list(self.type_to_loader_dict.keys())
 
-    def get_create_function(self, name: str) -> Callable | None:
+    def get_create_function(self, name: str) -> Callable:
         if loader_name := self.create_functions.get(name, None):
             # import loader
             return import_module(
                 f"from langchain.agents.agent_toolkits import {loader_name[0]}"
             )
-        return None
+        else:
+            raise ValueError("Loader not found")
 
     def has_create_function(self, name: str) -> bool:
         # check if the function list is not empty

src/backend/langflow/interface/tools/base.py

@@ -20,11 +20,11 @@ from langflow.interface.tools.util import (
     get_tools_dict,
 )
 from langflow.settings import settings
-from langflow.template.base import Field, Template
+from langflow.template.base import TemplateField, Template
 from langflow.utils import util
 
 TOOL_INPUTS = {
-    "str": Field(
+    "str": TemplateField(
         field_type="str",
         required=True,
         is_list=False,
@@ -32,15 +32,15 @@ TOOL_INPUTS = {
         placeholder="",
         value="",
     ),
-    "llm": Field(field_type="BaseLLM", required=True, is_list=False, show=True),
-    "func": Field(
+    "llm": TemplateField(field_type="BaseLLM", required=True, is_list=False, show=True),
+    "func": TemplateField(
         field_type="function",
         required=True,
         is_list=False,
         show=True,
         multiline=True,
     ),
-    "code": Field(
+    "code": TemplateField(
         field_type="str",
         required=True,
         is_list=False,
@@ -48,7 +48,7 @@ TOOL_INPUTS = {
         value="",
         multiline=True,
     ),
-    "dict_": Field(
+    "dict_": TemplateField(
         field_type="file",
         required=True,
         is_list=False,

src/backend/langflow/template/base.py

@@ -4,7 +4,7 @@ from typing import Any, Union
 from pydantic import BaseModel
 
 
-class FieldCreator(BaseModel, ABC):
+class TemplateFieldCreator(BaseModel, ABC):
     field_type: str = "str"
     required: bool = False
     placeholder: str = ""
@@ -37,13 +37,13 @@ class FieldCreator(BaseModel, ABC):
         return result
 
 
-class Field(FieldCreator):
+class TemplateField(TemplateFieldCreator):
     pass
 
 
 class Template(BaseModel):
     type_name: str
-    fields: list[Field]
+    fields: list[TemplateField]
 
     def to_dict(self):
         result = {field.name: field.to_dict() for field in self.fields}

src/backend/langflow/template/nodes.py

@@ -1,6 +1,6 @@
 from langchain.agents.mrkl import prompt
 
-from langflow.template.base import Field, FrontendNode, Template
+from langflow.template.base import TemplateField, FrontendNode, Template
 from langflow.utils.constants import DEFAULT_PYTHON_FUNCTION
 
 
@@ -9,7 +9,7 @@ class ZeroShotPromptNode(FrontendNode):
     template: Template = Template(
         type_name="zero_shot",
         fields=[
-            Field(
+            TemplateField(
                 field_type="str",
                 required=False,
                 placeholder="",
@@ -19,7 +19,7 @@ class ZeroShotPromptNode(FrontendNode):
                 value=prompt.PREFIX,
                 name="prefix",
             ),
-            Field(
+            TemplateField(
                 field_type="str",
                 required=True,
                 placeholder="",
@@ -29,7 +29,7 @@ class ZeroShotPromptNode(FrontendNode):
                 value=prompt.SUFFIX,
                 name="suffix",
             ),
-            Field(
+            TemplateField(
                 field_type="str",
                 required=False,
                 placeholder="",
@@ -53,7 +53,7 @@ class PythonFunctionNode(FrontendNode):
     template: Template = Template(
         type_name="python_function",
         fields=[
-            Field(
+            TemplateField(
                 field_type="code",
                 required=True,
                 placeholder="",
@@ -76,7 +76,7 @@ class ToolNode(FrontendNode):
     template: Template = Template(
         type_name="tool",
         fields=[
-            Field(
+            TemplateField(
                 field_type="str",
                 required=True,
                 placeholder="",
@@ -86,7 +86,7 @@ class ToolNode(FrontendNode):
                 value="",
                 name="name",
             ),
-            Field(
+            TemplateField(
                 field_type="str",
                 required=True,
                 placeholder="",
@@ -96,7 +96,7 @@ class ToolNode(FrontendNode):
                 value="",
                 name="description",
             ),
-            Field(
+            TemplateField(
                 field_type="str",
                 required=True,
                 placeholder="",
@@ -120,13 +120,13 @@ class JsonAgentNode(FrontendNode):
     template: Template = Template(
         type_name="json_agent",
         fields=[
-            Field(
+            TemplateField(
                 field_type="BaseToolkit",
                 required=True,
                 show=True,
                 name="toolkit",
             ),
-            Field(
+            TemplateField(
                 field_type="BaseLanguageModel",
                 required=True,
                 show=True,