gitlab-org--gitlab-foss/app/services/merge_requests/create_from_issue_service.rb

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module MergeRequests
class CreateFromIssueService < MergeRequests::CreateService
def initialize(project, user, params)
# branch - the name of new branch
# ref - the source of new branch.
@branch_name = params[:branch_name]
@issue_iid = params[:issue_iid]
@ref = params[:ref]
super(project, user)
end
def execute
return error('Invalid issue iid') unless @issue_iid.present? && issue.present?
params[:label_ids] = issue.label_ids if issue.label_ids.any?
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result = CreateBranchService.new(project, current_user).execute(branch_name, ref)
return result if result[:status] == :error
SystemNoteService.new_issue_branch(issue, project, current_user, branch_name)
new_merge_request = create(merge_request)
if new_merge_request.valid?
success(new_merge_request)
else
error(new_merge_request.errors)
end
end
private
def issue
@issue ||= IssuesFinder.new(current_user, project_id: project.id).find_by(iid: @issue_iid)
end
def branch_name
@branch ||= @branch_name || issue.to_branch_name
end
def ref
@ref || project.default_branch || 'master'
end
def merge_request
MergeRequests::BuildService.new(project, current_user, merge_request_params).execute
end
def merge_request_params
{
issue_iid: @issue_iid,
source_project_id: project.id,
source_branch: branch_name,
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target_project_id: project.id,
target_branch: ref,
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milestone_id: issue.milestone_id
}
end
def success(merge_request)
super().merge(merge_request: merge_request)
end
end
end