Function findPushRuleInsertionIndex

clientapi/routing/pushrules.go:348–386

(rules []*pushrules.Rule, afterID, beforeID string)

}

func findPushRuleInsertionIndex(rules []*pushrules.Rule, afterID, beforeID string) (int, error) {
	var i int

	if afterID != "" {
		for ; i < len(rules); i++ {
			if rules[i].RuleID == afterID {
				break
			}
		}
		if i == len(rules) {
			return 0, jsonerror.NotFound("after: rule ID not found")
		}
		if rules[i].Default {
			return 0, jsonerror.NotFound("after: rule ID must not be a default rule")
		}
		// We stopped on the "after" match to differentiate
		// not-found from is-last-entry. Now we move to the earliest
		// insertion point.
		i++
	}

	if beforeID != "" {
		for ; i < len(rules); i++ {
			if rules[i].RuleID == beforeID {
				break
			}
		}
		if i == len(rules) {
			return 0, jsonerror.NotFound("before: rule ID not found")
		}
		if rules[i].Default {
			return 0, jsonerror.NotFound("before: rule ID must not be a default rule")
		}
	}

	// UNSPEC: The spec does not say what to do if no after/before is
	// given. Sytest fails if it doesn't go first.
	return i, nil
}