关于用App Dev Pack 1.0.5的domino-db/richtext包复现富文本附件工作流的问询

Great question! The short answer is yes — you can absolutely replicate your desired workflow using the domino-db and richtext packages included in App Dev Pack 1.0.5. Let’s break down how each component contributes, and outline the key steps to implement it:

Core Capabilities of the Packages #

1. richtext Package #

This package is built specifically for working with Domino rich text content, and version 1.0.5 includes full support for:

• Embedding attachments directly into rich text items during document creation or editing
• Parsing existing rich text content to pull out attachment metadata (like filenames, file sizes) and raw binary data
• Generating valid Domino-rich-text structures that include attachments, ready to be saved back to the database

2. domino-db Package #

As the primary bridge between your app and the Domino database, domino-db handles:

• Saving documents with rich text items (and their embedded attachments) to the Domino server
• Retrieving saved documents (along with their rich text and attachments) for user display
• Ensuring binary attachment data is transmitted and stored without corruption

Step-by-Step Implementation #

Here’s how to map your workflow to the packages’ APIs:

1. User Editing & Attachment Addition #

• When the user selects the rich text field and clicks your attachment button, use frontend file picker logic to let them select files.
• Use the richtext package’s dedicated methods (like addAttachment) to embed the selected file(s) into an in-memory rich text structure. This converts the file into a format compatible with Domino’s rich text storage system.

2. Saving the Document #

• Prepare your document data, making sure the rich text field is structured as a RichTextItem with embedded attachments included.
• Use domino-db’s createDocument or updateDocument method to send the full document to the Domino database. The package automatically handles transmitting the binary attachment data alongside the rest of the document content.

3. Viewing/Saving Attachments Post-Save #

• When fetching the saved document via domino-db, extract the rich text item from the returned document data.
• Use the richtext package to parse the rich text and pull out each attachment’s binary data and metadata.
• For image attachments: Convert the binary data to a browser-compatible format (like an Object URL or Data URL) and render it directly in your UI for preview. Add a download button that triggers saving the blob to the user’s device.
• For non-image attachments: Provide a download link that uses the extracted binary data to let users save the file locally.

Key Notes to Keep in Mind #

• Ensure you’re handling binary data correctly in your frontend code to avoid corruption during upload or download.
• The richtext package’s attachment-focused APIs are straightforward, but be sure to reference the local documentation bundled with App Dev Pack 1.0.5 for exact method details.
• Test end-to-end with different file types and sizes to confirm attachments save properly and can be retrieved/previewed without issues.

内容的提问来源于stack exchange，提问作者Vomste