在graphql dotnet字段之间重用公共逻辑

Question

如果之前有人问过这个问题，我很抱歉，但我想问一下如何在graphql dotnet类型类中的字段之间重用某些逻辑？

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);

什么是正确的方法来计算某个字段和另一个字段之间的值SharedBetweenSomeAndAnotherField，就像在字段解析器之外只计算一次变量一样，这样我就可以只计算它一次，然后在某个字段的类型解析器中直接重用它？

谢谢！

Answer 1

您可以将获取该信息的逻辑移动到另一个方法中，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;
}

现在你只需要从其他地方打电话给我。