premerge

[KommuSoft]

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Solution

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Summary by CodeRabbit

• Refactor
  • Improved efficiency and readability of internal checks for dictionary keys across several components.
  • Enhanced robustness of field lookups to handle edge cases more safely.

No changes to user-facing features or public interfaces.

[coderabbitai]

Walkthrough

The updates refactor dictionary membership checks and lookups across several modules. Conditions using redundant .keys() or set() calls are replaced with direct dictionary membership checks. In some methods, a sentinel object is introduced for safe dictionary access, improving robustness when retrieving values. No public interfaces or control flows are altered.

Changes

File(s)	Change Summary
import_export/admin.py	Simplified dictionary key checks and introduced a sentinel object for safe .get() lookups.
import_export/declarative.py	Replaced set-based membership checks with direct dictionary key checks for efficiency.
import_export/resources.py	Adopted sentinel-based .get() for safer field lookups in two internal methods.

Poem

In fields and logs where keys reside,
The rabbit hops with code as guide.
No more sets or keys to find,
Just direct checks—efficient, kind!
With sentinels standing at the gate,
Our lookups now are first-rate.
🐇✨

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📜 Recent review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 268e55d and 803bcbf.

📒 Files selected for processing (3)

• import_export/admin.py (2 hunks)
• import_export/declarative.py (1 hunks)
• import_export/resources.py (2 hunks)

🧰 Additional context used

🪛 Ruff (0.12.2)

import_export/admin.py

588-588: Loop control variable instances not used within loop body

Rename unused instances to _instances

(B007)

🔇 Additional comments (5)

import_export/declarative.py (1)

110-110: LGTM! Efficient dictionary membership check.

The simplification from if f.name in set(declared_fields.keys()): to if f.name in declared_fields: is a good optimization that improves both performance and readability while maintaining identical functionality.

import_export/admin.py (2)

236-236: LGTM! Simplified dictionary membership check.

Removing the unnecessary .keys() call improves both performance and readability while maintaining identical functionality.

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587-590: LGTM! Robust dictionary access pattern.

The introduction of a sentinel object for safe dictionary access is an excellent improvement. This pattern prevents issues when dictionary values are falsy but present, making the code more robust than simple membership checking.

import_export/resources.py (2)

427-431: LGTM! Robust field lookup with sentinel pattern.

The use of a sentinel object with .get() is an excellent improvement that prevents issues when field values might be falsy but present. This makes the field lookup logic more robust while maintaining all existing functionality.

---

1106-1109: LGTM! Safe field selection with sentinel pattern.

Consistent with the earlier improvement, this sentinel-based approach ensures safe field selection even when dealing with potentially falsy field values. The pattern enhances robustness without changing the method's behavior.

✨ Finishing Touches

• 📝 Generate Docstrings

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