angular-ui/ui-grid

Group By on rowExpanded fetching data from API creating null rows

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#6,768 opened on Jun 20, 2018

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grid-groupinghelp wanted

Description

Requirements –

  1. Manage pagination at each group level.
  2. Load group on demand when user clicks on row expand. https://i.pinimg.com/originals/81/ad/be/81adbef7d4758b011ad43b2315164395.png https://i.pinimg.com/originals/31/92/52/31925269ceafbcaecdef762c3ee2ef2d.png

The ui grid displays columns : Severity, Name, Status, caseID, AssetID, AssetName, SiteName ....soon total 12 columns. Issue –

  1. Apply Grouping on Severity, Status, AssetId, caseId columns.

  2. By default grid displays Severity group as level zero. https://i.pinimg.com/564x/a5/aa/f3/a5aaf37583f059702615cfbb62dca7ff.jpg

  3. When we expand Severity “One” entity, application request API to fetch top 100 distinct status where severity is equal to one. https://i.pinimg.com/564x/fa/1d/23/fa1d2324b2af45b4195426a99a5310cd.jpg

  4. On expand of Closed status entity the application request API to fetch top 100 distinct AssetId list where status is equal to closed and severity id equal to one https://i.pinimg.com/564x/b8/8b/23/b88b23ed00029f5a4785a68eae083c3a.jpg

  5. At this level we can observe some empty rows i.e. null value rows are created. The application refined dataset correctly.

  6. Issue Root Cause Guess – as the source data set which is injected to ui-grid is refined correctly based on the grouping conditions & API response the UI-Grid visibleRowCatche is not updated when compared with bonded dataset

Contributor guide

Tech stack
javascriptangular
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
stale
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
needs investigation
Prerequisites
Familiarity with UI GridUnderstanding of grouping and row expansion
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
30
Research direction
Investigate the visibleRowCache update logic in UI Grid when grouping and lazy loading are combined. The issue suggests that the visibleRowCache is not synced with the bonded dataset after API calls. Look at the grouping service and row cache implementation in the codebase. Consider whether the issue is specific to certain versions or configurations.