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Three related concerns, each proven by executable tests rather than recall. They were extracted from a real defect that shipped through a six-reviewer panel undetected, which is the admission test passing on behavior rather than on theory. owning-table-must-delete-dependents-in-ondelete AL has no cascading delete. What makes it missable is an asymmetry: the platform DOES keep references correct on rename via TableRelation, so a developer who learns that and generalizes it to delete ships orphans. Also notes the permission trap (delete rights needed on the dependent table, not just the parent). validate-table-relation-false-suppresses-rename-propagation The non-obvious half. The property name implies input validation only, but disabling it also switches off rename propagation. Verified against a parent renamed once while a child held three fields: a normal relation (follows), the same relation with validation disabled (does NOT follow), and a field with no relation at all (does not follow) — the third being the control that proves the test can detect a non-propagating field. xrec-is-a-before-image-only-in-some-triggers Corrects both the naive belief that xRec is always the previous record and the folk rule that it 'only works from a page'. The behavior is per-trigger: a genuine before-image in OnRename and OnDelete regardless of driver, a mirror of Rec in OnInsert/OnModify when driven from code, and a real before-image in those two only when a page drove the write. That last asymmetry is why an OnModify comparison against xRec passes manual page testing and silently no-ops in a job queue. Targets /community per CONTRIBUTING — general BC knowledge, not fork-specific. Frontmatter validator clean; Test-ReviewFixtures passes (32 cases, 16 leaves).
36 lines
978 B
AL
36 lines
978 B
AL
table 50130 "Service Request"
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{
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fields
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{
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field(1; "No."; Code[20])
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{
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DataClassification = CustomerContent;
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}
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field(2; Status; Enum "Service Request Status")
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{
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DataClassification = CustomerContent;
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}
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}
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keys
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{
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key(PK; "No.")
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{
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Clustered = true;
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}
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}
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trigger OnModify()
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begin
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// Dead branch under any code-driven Modify: from code xRec mirrors Rec, so
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// the two Status values are always equal and LogStatusChange never runs.
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// Editing the field on a page DOES populate xRec, so this passes manual
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// testing and then silently does nothing in a job queue or API call.
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if Status <> xRec.Status then
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LogStatusChange(xRec.Status, Status);
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end;
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local procedure LogStatusChange(FromStatus: Enum "Service Request Status"; ToStatus: Enum "Service Request Status")
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begin
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end;
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}
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