This patch implements a JSON representation of EDIFACT interchanges for enhanced
programmatic access and debugging capabilities.
Backend Changes:
- Add to_json() method to Koha::Edifact module
- Structured JSON output with header, messages array, and trailer
- Segment parsing with raw data, elements arrays, and line_id tracking
- Line item grouping using LIN segment identifiers
Frontend Changes:
- Add JSON download button to edimsg.pl page
- Support for ?format=json parameter and Accept: application/json header
- Proper HTTP content-type handling for JSON responses
- Error handling for missing messages in JSON format
JSON Structure:
{
"header": "UNB+UNOC:3+...",
"messages": [
{
"header": "UNH+1+QUOTES:D:93A:UN:EAN008'",
"segments": [
{
"tag": "LIN",
"raw": "LIN+1+1+9780552150040:EN'",
"elements": ["1", "1", "9780552150040:EN"],
"line_id": "1"
}
],
"trailer": "UNT+25+1'"
}
],
"trailer": "UNZ+1+1'"
}
Test plan:
1. Apply this patch
2. Ensure you have EDIFACT messages in your system
3. Go to Acquisitions > EDIFACT messages
4. Click "View message" for any message
5. Click the new "JSON" button
6. Verify JSON downloads with proper structure
7. Verify direct URL access with ?format=json parameter works
8. Test with Accept: application/json header
Signed-off-by: Hannah Dunne-Howrie <hdunne-howrie@westminster.gov.uk>
Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
Signed-off-by: Martin Renvoize <martin.renvoize@openfifth.co.uk>
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