# Register variable in task with loop and use registered results for task conditional

**URL:** <https://forum.ansible.com/t/register-variable-in-task-with-loop-and-use-registered-results-for-task-conditional/34878>\
**Category:** Ansible Project\
**Created:** [March 29, 2021, 8:54am UTC](https://forum.ansible.com/t/register-variable-in-task-with-loop-and-use-registered-results-for-task-conditional/34878 "2021-03-29T08:54:59Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Nick\_Kakouros](https://avatars.discourse-cdn.com/v4/letter/n/d26b3c/32.png) [@Nick\_Kakouros](https://forum.ansible.com/u/Nick_Kakouros)\
**Post date:** [March 29, 2021, 8:54am UTC](https://forum.ansible.com/t/register-variable-in-task-with-loop-and-use-registered-results-for-task-conditional/34878/1 "2021-03-29T08:54:59Z")

</div>

I am trying to run a loop over a task and I am registering the results. The items in the loop are not unique and can repeat. I don’t want to run the same item twice. So, in the same task, I want to use a conditional to check if the current loop item has run so far in the loop. For this, I use the registered variable and using some filters, I try to extract the items that were not skipped so far. (I know I could use the `unique` filter for the use case above. But this is a trimmed down version of the actual use case where each loop item is a list where the first item can be common among different loop items, `apply: tags` is used, etc).

In the example below, instead of `skipped` I use `failed` to keep the example simple.

- hosts:
- localhost  
gather\_facts: no  
tasks:
- debug: msg=item  
loop: [1,2,3,1,2,3,4,5]  
loop\_control:  
index\_var: index  
failed\_when: index == 3  
register: r  
ignore\_errors: true  
when:
- ‘item not in r.results | d() | reject(“failed”) | map(attribute=“item”) | flatten’
- debug:  
msg: “{{ r.results | d() | reject(‘failed’) | map(attribute=‘item’) | flatten }}”

I know this example could be rewritten with `until`, I just constructed it to demonstrate my point.

The first tasks prints all loop items. The second one shows however that item number 3 was failed.

Is there a way to access the results from previous loop items somehow? Is this sth I should request on github from the ansible team?