来自IConfigurationSection集合的AutoMapper映射与复杂映射 [英] AutoMapper map from collection of IConfigurationSection with complex mapping
问题描述
这是我关于这个问题的第二个问题.我的第一个问题是此处.
罗马·马鲁西克(Roman Marusyk)为这个问题提供了一个简单的答案.但是，现实中我遇到的困难更大，情况将变得更加复杂.因此，我需要使用AutoMapper来映射配置(尽管如果默认绑定也可以解决这个问题，我会感到非常高兴和惊讶).
这是我的真实json，后面是模型:
It is my second question on the topic. My first question is here.
Roman Marusyk provided an easy answer to the question. However, I have more difficult case in reality and it will get even more complex. Therefore, I need to use AutoMapper to map the config (though I would be very happy and surprised if default binding coped with this as well).
Here is my real json with models followed:
{
"startupConfig": {
"noSubscription": {
"calls": [
{
"percentage": 30,
"techPriority": 1,
"timePriority": 2
},
{
"percentage": 30,
"techPriority": 1,
"timePriority": 2
}
],
"profiles": [
{
"type": "startup",
"percentage": 20,
"techPriority": 2,
"timePriority": 1
}
]
}
}
}
namespace FeedService.FeedConfigurations
{
public class FeedConfiguration
{
public ICollection<CallConfiguration> CallsConfig { get; set; }
public ICollection<ProfileConfiguration> ProfilesConfig { get; set; }
}
public class ProfileConfiguration
{
public CompanyTypeEnum CompanyTypeEnum { get; set; }
public int Percentage { get; set; }
public int TechPriority { get; set; }
public int TimePriority { get; set; }
}
public class CallConfiguration
{
public int Percentage { get; set; }
public int TechPriority { get; set; }
public int TimePriority { get; set; }
}
}
在这里，如您所见，我需要将profiles:type的配置值映射到名称按枚举类型的属性.显然，默认配置联编程序对我没有帮助.我也不想将属性的类型更改为字符串或将值的类型更改为整数.因此，对于使用AutoMapper进行映射的原始问题，我仍然需要一个答案(简化的示例足以将其扩展为第二部分).
===为方便起见复制了原始问题===
我有以下json配置文件:
Here, as you see I need config value of profiles:type to be mapped to property with enum type by name. Apparently, default configuration binder does not do magic for me. I also would not like to change type of the property to string or type of the value to integer. Therefore, I still need an answer for the original question for mapping with AutoMapper (where shortened example is enough to extend it for the second part).
===Original question copied for convenience===
I have the following json config file:
{
"startupConfig": {
"noSubscription": {
"calls": [
{
"percentage": 30,
"techPriority": 1,
"timePriority": 2
},
{
"percentage": 30,
"techPriority": 1,
"timePriority": 2
}
]
}
}
}
这是我从文件中读取的代码:
And here is my code reading from the file:
var config = _mapper.Map<FeedConfiguration>(_configuration
.GetSection("startupConfig").GetChildren()
.FirstOrDefault(cc => cc.Key == "noSubscription")?.GetChildren());
但是，映射不起作用.这是映射配置的代码:
However, the mapping does not work. Here is the code of mapping configuration:
CreateMap<IEnumerable<IConfigurationSection>, CallConfiguration>()
.ForMember(cc => cc.Percentage,
mo => mo.MapFrom(css => css.FirstOrDefault(cs => cs.Key == "percentage").Value))
.ForMember(cc => cc.TechPriority,
mo => mo.MapFrom(css => css.FirstOrDefault(cs => cs.Key == "techPriority").Value))
.ForMember(cc => cc.TimePriority,
mo => mo.MapFrom(css => css.FirstOrDefault(cs => cs.Key == "timePriority").Value));
CreateMap<IEnumerable<IConfigurationSection>, FeedConfiguration>()
.ForMember(fc => fc.CallsConfig,
mo => mo.MapFrom(css => css.FirstOrDefault(cs => cs.Key == "calls").GetChildren()));
我要映射的类:
namespace FeedService.FeedConfigurations
{
public class FeedConfiguration
{
public ICollection<CallConfiguration> CallsConfig { get; set; }
}
public class CallConfiguration
{
public int Percentage { get; set; }
public int TechPriority { get; set; }
public int TimePriority { get; set; }
}
}
这是我得到的一个例外:
And here is an exception I get:
AutoMapper.AutoMapperConfigurationException:
Unmapped members were found. Review the types and members below.
Add a custom mapping expression, ignore, add a custom resolver, or modify the source/destination type
For no matching constructor, add a no-arg ctor, add optional arguments, or map all of the constructor parameters
=============================================================================================================
AutoMapper created this type map for you, but your types cannot be mapped using the current configuration.
IConfigurationSection -> CallConfiguration (Destination member list)
Microsoft.Extensions.Configuration.IConfigurationSection -> FeedService.FeedConfigurations.CallConfiguration (Destination member list)
Unmapped properties:
Percentage
TechPriority
TimePriority
非常感谢您的帮助！
推荐答案
您的个人资料必须看起来像这样
Your profile must look like this
namespace FeedService.FeedConfigurations
{
public class FeedConfigurationMappingProfile : Profile
{
public FeedConfigurationMappingProfile()
{
CreateMap<IConfigurationSection, FeedConfiguration>()
.ForMember(fc => fc.Calls,
mo => mo.MapFrom(fc => fc.Get<FeedConfiguration>().Calls));
CreateMap<IConfigurationSection, CallConfiguration>()
.ForMember(cc => cc.Percentage,
mo => mo.MapFrom(css => css.GetChildren().FirstOrDefault(cs => cs.Key == "percentage").Value))
.ForMember(cc => cc.TechPriority,
mo => mo.MapFrom(css => css.GetChildren().FirstOrDefault(cs => cs.Key == "techPriority").Value))
.ForMember(cc => cc.TimePriority,
mo => mo.MapFrom(css => css.GetChildren().FirstOrDefault(cs => cs.Key == "timePriority").Value));
}
}
}
然后使用映射器
_mapper.Map<FeedConfiguration>(_configuration.GetSection("startupConfig:noSubscription"));
EDIT(附加选项)
EDIT(additional option)
CreateMap<IConfigurationSection, FeedConfiguration>()
.ForMember(fc => fc.Calls,
mo => mo.MapFrom(fc => fc.GetChildren().FirstOrDefault(fd=>fd.Key == "calls").GetChildren()));
这篇关于来自IConfigurationSection集合的AutoMapper映射与复杂映射的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
