重用graphql-dotnet字段之间的公共逻辑

Question

如果之前有人问过这个问题，我很抱歉，但我想问的是如何在graphql-dotnet类型的类中重用字段之间的特定逻辑？

例如

public MyClassType()
{
Name = "MyClassType";
Field<SomeEncloserType>(
            name: "somefield",
resolve: context =>
            {
                var requestName = context.Path.First().ToString();
                var vibrancySettings = (VibrancySettings)context.Variables.ValueFor(requestName);
                var otherSettings = vibrancySettings.SomeOtherSettings;
                var valueSharedBetweenSomeAndAnotherField = otherSettings.SomeCalcProperty;
                ...

                .....
            });

同样的逻辑也需要在所有地方使用，

Field<SomeEncloserType>(
            name: "anotherfield",
resolve: context =>
            {
                var requestName = context.Path.First().ToString();
                var vibrancySettings = (VibrancySettings)context.Variables.ValueFor(requestName);

在字段解析器之外像变量一样计算valueSharedBetweenSomeAndAnotherField的正确方法是什么，这样我就可以只计算一次，然后直接在某个字段和另一个字段的类型解析器中重用它？

谢谢!

Answer 1

您可以将获取该信息的逻辑移到另一个方法中，并从两个位置调用它，

public static TypeOfSomeOtherCalc GetSomeOtherCalc(IResolveContext context)
{
  var requestName = context.Path.First().ToString();
  var vibrancySettings = (VibrancySettings)context.Variables.ValueFor(requestName);
  var otherSettings = vibrancySettings.SomeOtherSettings;
  var valueSharedBetweenSomeAndAnotherField = otherSettings.SomeCalcProperty;
  return valueSharedBetweenSomeAndAnotherField;
}

现在，您只需从其他地方调用它。