# Merge request approvals settings

Merge request approvals can be defined at the project level or at the merge request level.

## References

- v4 API:

  - `gitlab.v4.objects.ProjectApproval`

  - `gitlab.v4.objects.ProjectApprovalManager`

  - `gitlab.v4.objects.ProjectApprovalRule`

  - `gitlab.v4.objects.ProjectApprovalRuleManager`

  - `gitlab.v4.objects.Project.approvals`

  - `gitlab.v4.objects.ProjectMergeRequestApproval`

  - `gitlab.v4.objects.ProjectMergeRequestApprovalManager`

  - `gitlab.v4.objects.ProjectMergeRequest.approvals`

  - `gitlab.v4.objects.ProjectMergeRequestApprovalRule`

  - `gitlab.v4.objects.ProjectMergeRequestApprovalRuleManager`

  - `gitlab.v4.objects.ProjectMergeRequest.approval_rules`

- GitLab API: https://docs.gitlab.com/ee/api/merge_request_approvals.html

## Examples

List project-level MR approval rules:

    p_mras = project.approvalrules.list()

Change project-level MR approval rule:

    p_approvalrule.user_ids = [234]
    p_approvalrule.save()

Delete project-level MR approval rule:

    p_approvalrule.delete()

Get project-level or MR-level MR approvals settings:

    p_mras = project.approvals.get()

    mr_mras = mr.approvals.get()

Change project-level or MR-level MR approvals settings:

    p_mras.approvals_before_merge = 2
    p_mras.save()

    mr_mras.set_approvers(approvals_required = 1)

Change project-level MR allowed approvers:

    project.approvals.set_approvers(approver_ids=[105],
                                     approver_group_ids=[653, 654])

Create a new MR-level approval rule or change an existing MR-level approval rule:

    mr.approvals.set_approvers(approvals_required = 1, approver_ids=[105],
                                approver_group_ids=[653, 654],
                                approval_rule_name="my MR custom approval rule")

List MR-level MR approval rules:

    mr.approval_rules.list()

Change MR-level MR approval rule:

    mr_approvalrule.user_ids = [105]
    mr_approvalrule.approvals_required = 2
    mr_approvalrule.group_ids = [653, 654]
    mr_approvalrule.save()

Create a MR-level MR approval rule:

    mr.approval_rules.create({
        "name": "my MR custom approval rule",
        "approvals_required": 2,
        "rule_type": "regular",
        "user_ids": [105],
        "group_ids": [653, 654],
    })