DialogFlow新手咨询：如何使用两个@sys.any实体且不混淆参数值

Hey there! I totally get where you're coming from—using @sys.any for open-ended inputs like comments and notes can feel tricky at first since it’s so flexible. Here are a few practical, developer-friendly ways to keep those parameters from getting mixed up:

1. Use Contexts to Build a Sequential Flow #

Don’t try to collect both inputs at once—break the process into clear steps, and use contexts to tell DialogFlow which parameter it should be listening for at each stage:

• First, create an intent (e.g., collect_comments) focused solely on gathering the comments parameter. Add training phrases like "My comments are: @sys.any" or "Here's what I think: @sys.any".
• After the user provides comments, set an output context (e.g., comment_submitted) with a short lifespan (2-3 conversation turns).
• Next, create a collect_notes intent, and set comment_submitted as its input context. This ensures the intent only triggers after comments are already collected, so DialogFlow knows it’s now time to capture the notes parameter.

2. Train with Explicit, Distinct Phrases #

Teach DialogFlow to distinguish between the two parameters by using clear prefixes in your training phrases:

• For comments:
  • "Comments: @sys.any"
  • "My feedback is: @sys.any"
  • "I want to comment that @sys.any"
• For notes:
  • "Notes: @sys.any"
  • "Please note that @sys.any"
  • "My note for you is: @sys.any"
    Pair this with explicit prompts in your bot’s responses, like "Could you share your comments about this first?" followed by "Great, now do you have any notes to add?"—this guides users to structure their input in a way DialogFlow can parse correctly.

3. Leverage Entity Roles (DialogFlow CX Only) #

If you’re using DialogFlow CX, take advantage of entity roles to tag @sys.any inputs with their purpose:

• Create two roles for @sys.any: comment_role and note_role.
• In your collect_comments intent, map the @sys.any(comment_role) entity to the comments parameter.
• In collect_notes, map @sys.any(note_role) to the notes parameter.
  This gives DialogFlow explicit context about which parameter each free-text input belongs to, even without strict phrasing rules.

4. Add Post-Processing as a Safety Net #

For edge cases where inputs might overlap (e.g., a user shares both comments and notes in one message), add a quick check in your webhook:

• Look for keywords like "comments:" or "notes:" in the user’s input to split the content into the correct parameters.
• If you’re unsure, trigger a confirmation intent: "It looks like you shared both comments and notes. Did you mean [X] as your comment, and [Y] as your note?" This lets the user clarify, ensuring your parameters get accurate values.

内容的提问来源于stack exchange，提问作者New_Coder