[英]Best way to share Automapper Resolver
我有一個viewmodel設置,其中包含幾個指向服務器上文件的物理路徑字符串。 我有虛擬目錄指向服務器上的根文件夾。 我需要做的是將此物理路徑更改為引用虛擬文件夾的路徑,以便在頁面視圖中創建超級鏈接。
我希望做的是擁有一個通用的解析器,可以將密鑰傳遞給該解析器,然后讓它返回所需的路徑。 這是我的方法。 我只想看看是否有更簡單的“清潔”方法。 我僅使用mvc和c#已有幾個月,所以我仍在學習。
預先感謝。
這是映射器信息
Mapper.CreateMap<FAG_DETAIL, OrderFagDetail>()
.ForMember(dest => dest.TXT01, opt => opt.ResolveUsing<DrawingPathCorrect>())
.ForMember(dest => dest.TXT02, opt => opt.ResolveUsing<Prog1PathCorrect>())
.ForMember(dest => dest.TXT03, opt => opt.ResolveUsing<Prog2PathCorrect>())
.ForMember(dest => dest.TXT04, opt => opt.ResolveUsing<Prog3PathCorrect>())
.ForMember(dest => dest.TXT05, opt => opt.ResolveUsing<Prog4PathCorrect>())
.ForMember(dest => dest.TXT07, opt => opt.ResolveUsing<Procs1PathCorrect>())
.ForMember(dest => dest.TXT08, opt => opt.ResolveUsing<Procs2PathCorrect>())
.ForMember(dest => dest.TXT09, opt => opt.ResolveUsing<Procs3PathCorrect>())
.ForMember(dest => dest.TXT10, opt => opt.ResolveUsing<Procs4PathCorrect>())
.ForMember(dest => dest.TXT11, opt => opt.ResolveUsing<FASPathCorrect>())
.ForMember(dest => dest.TXT06, opt => opt.ResolveUsing<SecondDrawingPathCorrect>());
這是ModelView以及我當前正在使用的解析器。 用於OrderfagDetail的模型FAG_DETAIL非常大,因此在此不再贅述。 可以安全地假設源中存在與ModelView屬性完全匹配的屬性。
public class OrderFagDetail
{
public decimal NO { get; set; }
public decimal FKNO { get; set; }
public decimal TYP { get; set; }
public string TXT01 { get; set; } //drawing link
public string TXT02 { get; set; } //First Op program or L20 Program
public string TXT03 { get; set; } //Second op program or K16 Program
public string TXT04 { get; set; } //Third op Program
public string TXT05 { get; set; } //Fourth op Program
public string TXT06 { get; set; } //Second drawing
public string TXT07 { get; set; } //First Op process sheet
public string TXT08 { get; set; } //Second Op process sheet
public string TXT09 { get; set; } //Third Op process sheet
public string TXT10 { get; set; } //Fourth Op process sheet
public string TXT11 { get; set; } //First Article link
}
public interface IValueResolver
{
ResolutionResult Resolve(ResolutionResult source);
}
public class SecondDrawingPathCorrect : ValueResolver<FAG_DETAIL, string>
{
protected override string ResolveCore(FAG_DETAIL detail)
{
PathResolver pr = new PathResolver();
return (pr.ResolvePath(detail.TXT06,"PDFs\\"));
}
}
public class PathResolver
{
public string ResolvePath(string strSrc, string strKey)
{
string corrected = "";
if (strSrc.Length > 0)
{
string inputdetail = strSrc;
corrected = inputdetail.Substring(inputdetail.IndexOf(strKey)+strKey.Length, inputdetail.Length - inputdetail.IndexOf(strKey)-strKey.Length);
}
return (corrected);
}
}
也許為了改進,您可以將PathResolver類設為static或singleton,不同之處在於Static Class:
辛格爾頓:
假設您有多個像這樣的CreateMap:
Mapper.CreateMap<PdfFileObject, MyViewModel>()
.ForMember( d => d.Uri, opt => opt.ResolveUsing(something with "pdfs")
Mapper.CreateMap<ImageFileObject, MyViewModel>()
.ForMember( d => d.Uri, opt => opt.ResolveUsing(something with "images")
..etc
像這樣創建您的解析器:
public class SecondDrawingPathCorrect<TFILE> : ValueResolver<FAG_DETAIL, string>
where TFILE : FAG_DETAIL
{
private readonly string _replaceKey;
public SecondDrawingPathCorrect(string replaceKey)
{
_replaceKey = replaceKey;
}
protected override string ResolveCore(FAG_DETAIL detail)
{
string corrected = "";
if (detail.TXT06.Length > 0)
{
string inputdetail = detail.TXT06;
corrected = inputdetail.Substring(inputdetail.IndexOf(_replaceKey) + 5, inputdetail.Length - inputdetail.IndexOf("_replaceKey) - 5);
}
return corrected;
}
}
像這樣注冊您的地圖:
Mapper.CreateMap<PdfFileObject, MyViewModel>()
.ForMember( d => d.Uri, opt => opt.ResolveUsing(new SecondDrawingPathCorrect<PdfFileObject>("PDFs");
為使以上各項起作用,您的PfdFileObject,ImageFileObject等應實現/繼承FAG_DETAIL。
還有另一個選擇,如果您可以控制FAG_DETAIL,則可以在其上公開屬性字符串FilePathPrefix(對於PdfFileObject,該屬性字符串將返回“ PDF”)。 然后,您可以在解析器本身中使用它(即,在“替換”部分中使用detail.FilePrefix而不是_replaceKey)。
使用最新的版本,您可以刪除resolver的通用部分,並進行如下注冊:
Mapper.CreateMap<FAG_DETAIL, MyViewModel>()
.ForMember( d => d.Uri, opt => opt.ResolveUsing<SecondDrawingPathCorrect>()
.Include<PdfFileObject, MyViewModel>()
.Include<ImageFileObject, MyViewModel>()
...more includes;
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