Used $noNeedRight = ['missingNum'] instead of ['*'] for minimal permission bypass
Model queries up to 500 historical records for true omission count calculation
Color fallback uses '—' string when fa_num table has no mapping for a number
duration
completed
~5min
2026-04-21
Phase 01 Plan 01: Backend Missing Number Logic Summary
Backend missing number calculation logic and AJAX endpoint — History model with getMissingNumbers() + calcOmitCount() methods, History controller with missingNum() endpoint, and i18n language keys for the missing number feature.
Tasks Completed
#
Task
Commit
Files
1
Add getMissingNumbers() and calcOmitCount() to History model
6386a40
application/admin/model/History.php
2
Add missingNum() AJAX endpoint to History controller
15bb870
application/admin/controller/History.php
3
Add i18n text keys to language file
96d5e78
application/admin/lang/zh-cn/history.php
One-liner
History model getMissingNumbers() computes missing lottery numbers (1-49) with true omission counts from up to 500 historical records, controller missingNum() validates periods (1-100) and returns JSON, i18n file provides Chinese translations.
Key Decisions
$noNeedRight minimal scope: Only missingNum method is exempted from permission checks (not ['*']), following least-privilege principle.
500-record limit for omission calculation: Queries up to 500 historical records to calculate true omission counts (last appearance distance), not just "appeared/not appeared" in the query window.
Color fallback: Returns '—' when fa_num table lacks a wave color mapping for a given number.
Deviations from Plan
None - plan executed exactly as written.
Known Stubs
None.
Threat Flags
None beyond what was identified in the plan's threat model (T-01-01 through T-01-04).
Self-Check
Model file exists with both methods: PASS
Controller file exists with missingNum endpoint: PASS
