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Displaying distinct items from a JSON object array based on one field of the object

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Posted on by slong

Here's a simplified version of a JSON array which I am getting back from a Jira REST endpoint. I store the issues in a PowerApps collection called jiraRawData.

"issues":[
 {
 "id":"1",
 "assignee":null
 },
 {
 "id":"2",
 "assignee":{
 "displayName":"john"
 }
 },
 {
 "id":"3",
 "assignee":{
 "displayName":"john"
 }
 },
 {
 "id":"4",
 "assignee":{
 "displayName":"mary"
 }
 }
]

I want to display issues in a Gallery component and I can do that no problem.

However what I would like to do is to display the unique assignee names only so for the input above I would just like to see the following in my gallery

john

mary

I have tried assigning the Items property of the gallery component to Distinct(jiraRawData, "assignee") but it doesn't work. I've tried so many things and I'm out of ideas.

I'm also having issues displaying the assignee in a gallery even when I just supply jiraRawData as the Items property I get the following error Invalid use of '.' when using ThisItem.fields.assignee.displayName as the Text attribute.

Any help greatly appreciated.

Categories:

Building Power Apps

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rubin_boer 4,843 Super User 2024 Season 1 on at

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hi @slong can you perhaps add some screen shots

I created Collection _Jira and found this

The the distinct function Distinct(_Jira,assignee)
slong 32 on at

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@rubin_boer I've tried what you've suggested above. Still having an issue. Screenshots below as requested. I load my Collection using the following line
ClearCollect(jiraRawData, JIRACloud.GetIssuesForJQL("project = MYPROJECT AND issuetype in (standardIssueTypes(), subTaskIssueTypes(), Bug, Epic, Spike, Story, Task, Bug-Subtask, Sub-task) AND status in (Blocked,"&Char(34)&"In Progress"&Char(34)&", Open) AND fixVersion = 11.0.0 ORDER BY created DESC").issues);
slong 32 on at

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I think my issue seems to be that I can't do this. How would I get around this seeing as displayName only exists within assignee sometimes. Otherwise assignee is null.

Distinct(jiraRawData, assignee.displayName)
ManiLive 41 on at

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You may want to filter the data to get the non-null ones, before using Distinct to get the unique list of displayName values.
Distinct(Filter(Issues, !IsBlank(assignee)), assignee.displayName)