openspp-modules added validation for deleting membership in individual

Why is this change needed?

Individual is able to remove membership even if the individual is the head of a farm

How was the change implemented?

Added a validation

New unit tests

None

Unit tests executed by the author

None

How to test manually

Install farmer registry demo module
Go to Registry -> Farm and create a farm
Go to Individual and enter the individual record
Go to Groups tab
Make sure that the individual is the head of the farmer
Delete the record in the groups tab then save.
Check if there is an error.

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

Oct 04 '24 05:10 sonarqubecloud[bot]

Codecov Report

Attention: Patch coverage is 53.84615% with 6 lines in your changes missing coverage. Please review.

Project coverage is 73.22%. Comparing base (c2d1b67) to head (ab91df9). Report is 190 commits behind head on 17.0.

Files with missing lines	Patch %	Lines
...pp_farmer_registry_base/models/group_membership.py	45.45%	6 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             17.0     #620      +/-   ##
==========================================
- Coverage   73.50%   73.22%   -0.29%     
==========================================
  Files         560      545      -15     
  Lines       14084    13631     -453     
  Branches     1799     1751      -48     
==========================================
- Hits        10353     9981     -372     
+ Misses       3414     3352      -62     
+ Partials      317      298      -19

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