use group get api: handle empty usergroup
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@ -85,7 +85,12 @@ func (arg *AlertRuleGroup) FillUserGroups() error {
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return internalServerError
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}
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arg.UserGroups = ugs
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if len(ugs) > 0 {
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arg.UserGroups = ugs
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} else {
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arg.UserGroups = []UserGroup{}
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}
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return nil
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}
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