feat(example/pager): Add Query Preservation to AVL Pager

[Ursulovic]

Query Parameter Preservation in AVL Pager

This PR is necessary for the Hall of Fame Improvement PR which adds sorting functionality to realms. Currently, when users navigate through pages, the sort parameter is lost because the pager doesn't preserve query parameters. This enhancement ensures that sorting preferences (and other query parameters) persist during pagination.

Goal

Enhance the current Pager implementation to preserve URL query parameters when navigating between pages. The Picker function should maintain all existing query parameters while only updating the page number.

Changes

1. Modify the Picker function signature to accept the current path:

   func (p *Page) Picker(path string) string

2. Update the Picker implementation to:

   • Parse query parameters from the provided path
   • Generate pagination UI that preserves existing query parameters
   • Maintain consistent link format across all pagination buttons

Implementation Details

• Parse URL query parameters using url.Parse
• Preserve all existing query parameters except page
• Generate pagination links that include all preserved parameters
• Handle edge cases (invalid paths, empty queries)

Development Checklist

• Update Pager implementation
  • Modify Picker function signature
  • Add query parameter parsing
  • Implement parameter preservation in link generation
• Update tests
  • Add tests for query parameter preservation
  • Test edge cases and invalid inputs
• Update dependent code
  • Modify all Picker function calls

[Gno2D2]

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[notJoon]

The CI is failing in lint. Could you please resolve this? Thank you.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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[Ursulovic]

The CI is failing in lint. Could you please resolve this? Thank you.

Hi, several days ago, there was a problem with the CI, and I was told to leave it for the time being. It fixed itself when merged with master in this commit: 458a825.

[leohhhn]

Can you please write some tests that test specifically for the case you've handled?

[Ursulovic]

Done in commit: b05cd58