Fix dropdown yielding options as a collection.

[mjauvin]

Fixes #1445

Restores previous behavior.

Added a unittest that triggers the error in the form rendering.

Summary by CodeRabbit

• Bug Fixes

  • Dropdown form fields now correctly normalize options provided as collections for consistent display.

• Tests

  • Added test coverage validating collection-based options handling and the options source used in tests.

[coderabbitai]

Walkthrough

Adds a runtime guard that converts Illuminate\Support\Collection instances to arrays when rendering dropdown fields, and a test helper method that returns a collection to validate collection-based options.

Changes

Cohort / File(s)	Summary
Test Coverage modules/backend/tests/widgets/FormTest.php	Adds collectionOptions() to FormTestModel and registers collection-based options in the form test to validate dropdowns accept Collection.
Dropdown Field Rendering modules/backend/widgets/form/partials/_field_dropdown.php	Adds a runtime normalization: if fieldOptions is an Illuminate\Support\Collection, convert it to an array via all() before rendering the dropdown.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (4 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'Fix dropdown yielding options as a collection' directly and specifically describes the main change—restoring support for Collections in dropdown options.
Linked Issues check	✅ Passed	The PR implements the required fix by adding a runtime guard to normalize Collections to arrays in the dropdown partial and adds a unit test to verify backward compatibility.
Out of Scope Changes check	✅ Passed	All changes are directly related to resolving the dropdown Collection compatibility issue—the runtime guard in the partial, the test method, and test case registration.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Post copyable unit tests in a comment
• Commit unit tests in branch fix-dropdown

---

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@modules/backend/widgets/form/partials/_field_dropdown.php`:
- Around line 3-5: Adjust the indentation of the conditional that checks the
type of $fieldOptions so PHPCS expects 0 leading spaces: locate the block that
uses "if ($fieldOptions instanceof Illuminate\Support\Collection)" and the
subsequent "$fieldOptions = $fieldOptions->all();" and remove the extra leading
spaces so both lines begin at column 0 (no indentation).