2350e10966
- do-not-grant-rights-beyond-a-users-entitlement.md: drop the See sample reference to a .good.al file that does not exist - Remove the 'Contributions welcome' boilerplate line from compose-permission-sets, prefer-oauth2, and protect-sensitive-data - protect-sensitive-data-in-temporary-tables: remove the pointless DeleteAll on the locally scoped temp buffer in the good sample and reword Best Practice to note local buffers are cleaned up automatically - Drop guard-bulk-operations-with-istemporary from the promotion; it stays in the community layer pending a decision on whether it is security Co-authored-by: Copilot App <223556219+Copilot@users.noreply.github.com>
1.5 KiB
| bc-version | domain | keywords | technologies | countries | application-area | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
security |
|
|
|
|
Guard bulk operations with IsTemporary
Contributions welcome — open a PR to refine or extend this article.
Description
An AL helper that accepts a var Rec: Record X parameter and performs a bulk operation (DeleteAll, ModifyAll, or an unfiltered loop that mutates every record) cannot tell from the signature alone whether the caller passed a temporary buffer or the real table. A misuse that passes the real table wipes or rewrites live data at production scale with no earlier warning. A single IsTemporary check at the procedure entry turns a silent-corruption risk into an early, actionable failure.
Best Practice
Any helper designed to operate on a temporary record, and that performs DeleteAll, ModifyAll, or similar bulk writes on its parameter, should call Rec.IsTemporary() at the top and raise a descriptive error when the assumption is violated. The error message should name the parameter so the misuse is easy to locate.
See sample: guard-bulk-operations-with-istemporary.good.al.
Anti Pattern
Trusting documentation or naming conventions alone to signal that a var Rec parameter is expected to be temporary. A future refactor or a copy-paste caller can pass the real table; the bulk operation then executes against production rows silently.
See sample: guard-bulk-operations-with-istemporary.bad.al.