39769afce8
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_014aUaQeLnwbb1zTpN7kHeat
45 lines
2.0 KiB
Markdown
45 lines
2.0 KiB
Markdown
# 1. Goal
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Refactor the legacy report {{P}}TRAIN_PUNCT_OLD in package $TMP. The report shows
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the punctuality of the railway lines of a regional operator. The operations team
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uses the report to find the lines that need attention.
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The behaviour of the report stays the same. Only the internal structure changes.
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# 2. Open questions
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None.
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# 3. Context
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- Table {{P}}TRUN exists in package $TMP and contains data.
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Fields: RUN_ID (INT4, key), LINE_CODE (CHAR 6), PLAN_DATE (DATS),
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DELAY_MIN (INT4), CANCELLED (CHAR 1).
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One row is one train run of one line on one day. DELAY_MIN is the delay of the
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run in minutes. CANCELLED is 'X' if the run was cancelled.
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- The report {{P}}TRAIN_PUNCT_OLD in package $TMP is the legacy report. It is
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active and it produces the correct result. Users report that the code is hard
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to maintain.
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- The report reads the table and shows one line per railway line in an ALV list.
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# 4. Contract
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- The program {{P}}TRAIN_PUNCT_OLD keeps its name and its package $TMP.
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- The selection screen keeps these parameters:
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- S_LINE: a select-option for the line code.
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- S_DATE: a select-option for the plan date.
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- The report shows the result with CL_SALV_TABLE. The output table keeps these
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column names: LINE_CODE, RUNS, LATE, SUM_DELAY, PUNCT.
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# 5. Business rules
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The behaviour of the report must not change. The legacy code of
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{{P}}TRAIN_PUNCT_OLD contains the business rules. Read the legacy code and keep
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every rule. Do not add rules. Do not remove rules.
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# 6. Constraints
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- Release target: SAP_BASIS 816 (ABAP Platform 2025).
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- Coding standards: Clean ABAP. Split the logic into small methods. A method has
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fewer than 40 statements. Do not change the public interface.
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- Out of scope: do not change {{P}}TRUN and do not change {{P}}TRAIN_SEED.
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# 7. Acceptance
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- The program is active and has no syntax error.
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- The behaviour of the program is unchanged. The hidden tests pass.
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- The code has no ATC finding of priority 1 or 2.
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- Write ABAP Unit tests as local test classes in the program.
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