GrantPermissionUi for a specific resource with the resource as a directory

[anushkavidanage]

Pull Request Details

What issue does this PR address

• GrantPermissionUi() for a specific resource with the resource as a directory

Associated Issue

• This PR relates to issue SOLIDPOD: GrantPermissionUi for a specific resource with the resource as a directory #484

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Please describe the tests that you ran to verify your changes.

Checklist

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• Screenshots included in linked issue #
• Changes adhere to the style and coding guidelines
• I have performed a self-review of my code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• Any dependent changes have been merged and published in downstream modules
• The update contains no confidential information
• The update has no duplicated content
• No lint check errors are related to these changes (make prep or flutter analyze lib)
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[cdawei]

The changes look good, thanks @anushkavidanage. We just have to save one line of code to pass the lint check :-)

[srodriguez142857]

Hi @anushkavidanage and @cdawei.

I'm unsure if the following is the functionality to be tested.
In the Example App, I went to the "Demonstrating data sharing functionality" as shown below:

Option: Add/Delete Permissions from any Resource

I have only the following comment about this page:

Everything else is okay.

---

On the other hand, if I click on the option "Add/Delete Permissions from a Specific Resource", I get an error/exception:

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following StateError was thrown building FutureBuilder<List<dynamic>>(dirty, state:
_FutureBuilderState<List<dynamic>>#2c672):
Bad state: No element

The relevant error-causing widget was:
  FutureBuilder<List<dynamic>>
  FutureBuilder:file:///E:/_temp/_VSCode/Workspace/anusii/solidpod/lib/src/solid/grant_permission_ui.dart:534:13

When the exception was thrown, this was the stack:
#0      List.first (dart:core-patch/growable_array.dart:352:5)
#1      GrantPermissionUiState.build.<anonymous closure> (package:solidpod/src/solid/grant_permission_ui.dart:537:36)
#2      _FutureBuilderState.build (package:flutter/src/widgets/async.dart:625:55)
#3      StatefulElement.build (package:flutter/src/widgets/framework.dart:5833:27)
#4      ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5723:15)
#5      StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5884:11)
#6      Element.rebuild (package:flutter/src/widgets/framework.dart:5435:7)
#7      BuildScope._tryRebuild (package:flutter/src/widgets/framework.dart:2695:15)
#8      BuildScope._flushDirtyElements (package:flutter/src/widgets/framework.dart:2752:11)
#9      BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:3056:18)
#10     WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:1259:21)
#11     RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:495:5)
#12     SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1434:15)
#13     SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1347:9)
#14     SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:1200:5)
#15     _invoke (dart:ui/hooks.dart:330:13)
#16     PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:444:5)
#17     _drawFrame (dart:ui/hooks.dart:302:31)

════════════════════════════════════════════════════════════════════════════════════════════════════

Should this be expected?