feat: update if-else component (#8756)

* add ifelse component

* [autofix.ci] apply automated fixes

* fix test

* fix test

* fix test

* fix tests

* [autofix.ci] apply automated fixes

* fix tests

* fix test

---------

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>
Co-authored-by: Lucas Democh <democh@datax.dev>

src/backend/base/langflow/components/logic/conditional_router.py

@@ -22,20 +22,31 @@ class ConditionalRouterComponent(Component):
             info="The primary text input for the operation.",
             required=True,
         ),
+        DropdownInput(
+            name="operator",
+            display_name="Operator",
+            options=[
+                "equals",
+                "not equals",
+                "contains",
+                "starts with",
+                "ends with",
+                "regex",
+                "less than",
+                "less than or equal",
+                "greater than",
+                "greater than or equal",
+            ],
+            info="The operator to apply for comparing the texts.",
+            value="equals",
+            real_time_refresh=True,
+        ),
         MessageTextInput(
             name="match_text",
             display_name="Match Text",
             info="The text input to compare against.",
             required=True,
         ),
-        DropdownInput(
-            name="operator",
-            display_name="Operator",
-            options=["equals", "not equals", "contains", "starts with", "ends with", "regex"],
-            info="The operator to apply for comparing the texts.",
-            value="equals",
-            real_time_refresh=True,
-        ),
         BoolInput(
             name="case_sensitive",
             display_name="Case Sensitive",
@@ -44,9 +55,15 @@ class ConditionalRouterComponent(Component):
             advanced=True,
         ),
         MessageInput(
-            name="message",
+            name="true_case_message",
-            display_name="Alternative Output",
+            display_name="Case True",
-            info="The message to pass through either route.",
+            info="The message to pass if the condition is True.",
+            advanced=True,
+        ),
+        MessageInput(
+            name="false_case_message",
+            display_name="Case False",
+            info="The message to pass if the condition is False.",
             advanced=True,
         ),
         IntInput(
@@ -94,6 +111,20 @@ class ConditionalRouterComponent(Component):
                 return bool(re.match(match_text, input_text))
             except re.error:
                 return False  # Return False if the regex is invalid
+        if operator in ["less than", "less than or equal", "greater than", "greater than or equal"]:
+            try:
+                input_num = float(input_text)
+                match_num = float(match_text)
+                if operator == "less than":
+                    return input_num < match_num
+                if operator == "less than or equal":
+                    return input_num <= match_num
+                if operator == "greater than":
+                    return input_num > match_num
+                if operator == "greater than or equal":
+                    return input_num >= match_num
+            except ValueError:
+                return False  # Invalid number format for comparison
         return False
 
     def iterate_and_stop_once(self, route_to_stop: str):
@@ -109,9 +140,9 @@ class ConditionalRouterComponent(Component):
             self.input_text, self.match_text, self.operator, case_sensitive=self.case_sensitive
         )
         if result:
-            self.status = self.message
+            self.status = self.true_case_message
             self.iterate_and_stop_once("false_result")
-            return self.message
+            return self.true_case_message
         self.iterate_and_stop_once("true_result")
         return Message(content="")
 
@@ -120,9 +151,9 @@ class ConditionalRouterComponent(Component):
             self.input_text, self.match_text, self.operator, case_sensitive=self.case_sensitive
         )
         if not result:
-            self.status = self.message
+            self.status = self.false_case_message
             self.iterate_and_stop_once("true_result")
-            return self.message
+            return self.false_case_message
         self.iterate_and_stop_once("false_result")
         return Message(content="")
 
@@ -130,8 +161,6 @@ class ConditionalRouterComponent(Component):
         if field_name == "operator":
             if field_value == "regex":
                 build_config.pop("case_sensitive", None)
-
-            # Ensure case_sensitive is present for all other operators
             elif "case_sensitive" not in build_config:
                 case_sensitive_input = next(
                     (input_field for input_field in self.inputs if input_field.name == "case_sensitive"), None

src/backend/tests/unit/graph/graph/test_cycles.py

@@ -32,15 +32,16 @@ class Concatenate(Component):
 def test_cycle_in_graph():
     chat_input = ChatInput(_id="chat_input")
     router = ConditionalRouterComponent(_id="router", default_route="true_result")
-    # Use router's message output instead of false_response
+    # Use router's true case message output instead of message
-    chat_input.set(input_value=router.message)
+    chat_input.set(input_value=router.true_case_message)
     concat_component = Concatenate(_id="concatenate")
     concat_component.set(text=chat_input.message_response)
     router.set(
         input_text=chat_input.message_response,
         match_text="testtesttesttest",
         operator="equals",
-        message=concat_component.concatenate,
+        true_case_message=concat_component.concatenate,
+        false_case_message=concat_component.concatenate,
     )
     text_output = TextOutputComponent(_id="text_output")
     text_output.set(input_value=router.true_response)
@@ -83,14 +84,16 @@ def test_cycle_in_graph():
 def test_cycle_in_graph_max_iterations():
     text_input = TextInputComponent(_id="text_input")
     router = ConditionalRouterComponent(_id="router")
+    # Connect text_input to router's input
     text_input.set(input_value=router.false_response)
     concat_component = Concatenate(_id="concatenate")
     concat_component.set(text=text_input.text_response)
+    # Connect concatenate output back to router's input to create cycle
     router.set(
         input_text=text_input.text_response,
         match_text="testtesttesttest",
         operator="equals",
-        message=concat_component.concatenate,
+        false_case_message=concat_component.concatenate,
     )
     text_output = TextOutputComponent(_id="text_output")
     text_output.set(input_value=router.true_response)
@@ -100,7 +103,7 @@ def test_cycle_in_graph_max_iterations():
     graph = Graph(text_input, chat_output)
     assert graph.is_cyclic is True
 
-    # Run queue should contain chat_input and not router
+    # Run queue should contain text_input and not router
     assert "text_input" in graph._run_queue
     assert "router" not in graph._run_queue
 
@@ -109,24 +112,24 @@ def test_cycle_in_graph_max_iterations():
 
 
 def test_that_outputs_cache_is_set_to_false_in_cycle():
-    chat_input = ChatInput(_id="chat_input")
+    text_input = TextInputComponent(_id="text_input")
     router = ConditionalRouterComponent(_id="router")
-    # Use router's message output instead of false_response
-    chat_input.set(input_value=router.message)
     concat_component = Concatenate(_id="concatenate")
-    concat_component.set(text=chat_input.message_response)
+    text_input.set(input_value=router.false_response)
+    concat_component.set(text=text_input.text_response)
     router.set(
-        input_text=chat_input.message_response,
+        input_text=text_input.text_response,
         match_text="testtesttesttest",
         operator="equals",
-        message=concat_component.concatenate,
+        true_case_message=concat_component.concatenate,
+        false_case_message=concat_component.concatenate,
     )
     text_output = TextOutputComponent(_id="text_output")
     text_output.set(input_value=router.true_response)
     chat_output = ChatOutput(_id="chat_output")
     chat_output.set(input_value=text_output.text_response)
 
-    graph = Graph(chat_input, chat_output)
+    graph = Graph(text_input, chat_output)
     cycle_vertices = find_cycle_vertices(graph._get_edges_as_list_of_tuples())
     cycle_outputs_lists = [
         graph.vertex_map[vertex_id].custom_component._outputs_map.values() for vertex_id in cycle_vertices
@@ -167,7 +170,8 @@ def test_updated_graph_with_prompts():
         input_text=openai_component_1.text_response,
         match_text=chat_input.message_response,
         operator="contains",
-        message=openai_component_1.text_response,
+        true_case_message=openai_component_1.text_response,
+        false_case_message=openai_component_1.text_response,
     )
 
     # Second prompt: After the last try, provide a new hint
@@ -236,7 +240,8 @@ def test_updated_graph_with_max_iterations():
         input_text=openai_component_1.text_response,
         match_text=chat_input.message_response,
         operator="contains",
-        message=openai_component_1.text_response,
+        true_case_message=openai_component_1.text_response,
+        false_case_message=openai_component_1.text_response,
     )
 
     # Second prompt: After the last try, provide a new hint
@@ -290,7 +295,8 @@ def test_conditional_router_max_iterations():
         input_text=text_input.text_response,
         match_text="bacon",
         operator="equals",
-        message="This message should not be routed to true_result",
+        true_case_message="This message should not be routed to true_result",
+        false_case_message="This message should not be routed to false_result",
         max_iterations=5,
         default_route="true_result",
     )