add memory fix

packages/components/nodes/agents/ConversationalAgent/ConversationalAgent.ts

@@ -95,9 +95,13 @@ class ConversationalAgent_Agents implements INode {
         const callbacks = await additionalCallbacks(nodeData, options)
 
         if (options && options.chatHistory) {
+            const chatHistoryClassName = memory.chatHistory.constructor.name
+            // Only replace when its In-Memory
+            if (chatHistoryClassName && chatHistoryClassName === 'ChatMessageHistory') {
                 memory.chatHistory = mapChatHistory(options)
                 executor.memory = memory
             }
+        }
 
         const result = await executor.call({ input }, [...callbacks])
         return result?.output

packages/components/nodes/agents/ConversationalRetrievalAgent/ConversationalRetrievalAgent.ts

@@ -82,8 +82,12 @@ class ConversationalRetrievalAgent_Agents implements INode {
         if (executor.memory) {
             ;(executor.memory as any).memoryKey = 'chat_history'
             ;(executor.memory as any).outputKey = 'output'
+            const chatHistoryClassName = (executor.memory as any).chatHistory.constructor.name
+            // Only replace when its In-Memory
+            if (chatHistoryClassName && chatHistoryClassName === 'ChatMessageHistory') {
                 ;(executor.memory as any).chatHistory = mapChatHistory(options)
             }
+        }
 
         const loggerHandler = new ConsoleCallbackHandler(options.logger)
         const callbacks = await additionalCallbacks(nodeData, options)

packages/components/nodes/agents/OpenAIFunctionAgent/OpenAIFunctionAgent.ts

@@ -81,9 +81,13 @@ class OpenAIFunctionAgent_Agents implements INode {
         const memory = nodeData.inputs?.memory as BaseChatMemory
 
         if (options && options.chatHistory) {
+            const chatHistoryClassName = memory.chatHistory.constructor.name
+            // Only replace when its In-Memory
+            if (chatHistoryClassName && chatHistoryClassName === 'ChatMessageHistory') {
                 memory.chatHistory = mapChatHistory(options)
                 executor.memory = memory
             }
+        }
 
         const loggerHandler = new ConsoleCallbackHandler(options.logger)
         const callbacks = await additionalCallbacks(nodeData, options)

packages/components/nodes/chains/ConversationChain/ConversationChain.ts

@@ -106,9 +106,13 @@ class ConversationChain_Chains implements INode {
         const memory = nodeData.inputs?.memory as BufferMemory
 
         if (options && options.chatHistory) {
+            const chatHistoryClassName = memory.chatHistory.constructor.name
+            // Only replace when its In-Memory
+            if (chatHistoryClassName && chatHistoryClassName === 'ChatMessageHistory') {
                 memory.chatHistory = mapChatHistory(options)
                 chain.memory = memory
             }
+        }
 
         const loggerHandler = new ConsoleCallbackHandler(options.logger)
         const callbacks = await additionalCallbacks(nodeData, options)

packages/components/nodes/chains/ConversationalRetrievalQAChain/ConversationalRetrievalQAChain.ts

@@ -179,8 +179,12 @@ class ConversationalRetrievalQAChain_Chains implements INode {
         const obj = { question: input }
 
         if (options && options.chatHistory && chain.memory) {
+            const chatHistoryClassName = (chain.memory as any).chatHistory.constructor.name
+            // Only replace when its In-Memory
+            if (chatHistoryClassName && chatHistoryClassName === 'ChatMessageHistory') {
                 ;(chain.memory as any).chatHistory = mapChatHistory(options)
             }
+        }
 
         const loggerHandler = new ConsoleCallbackHandler(options.logger)
         const callbacks = await additionalCallbacks(nodeData, options)