/// <summary>
/// 数据填充
/// </summary>
/// <param name="reader">源IDataReader</param>
/// <typeparam name="TEntity">实体类</typeparam>
public static TEntity ToEntity <TEntity>(this IDataReader reader) where TEntity : class, new()
{
var map = SetMapCacheManger.Cache(typeof(TEntity));
var t = (TEntity)Activator.CreateInstance(typeof(TEntity));
var isHaveValue = false;
if (reader.Read())
{
//赋值字段
foreach (var kic in map.MapList)
{
if (HaveName(reader, kic.Value.Field.Name))
{
if (!kic.Key.CanWrite)
{
continue;
}
var oVal = ConvertHelper.ConvertType(reader[kic.Value.Field.Name], kic.Key.PropertyType);
PropertySetCacheManger.Cache(kic.Key, t, oVal);
isHaveValue = true;
}
}
}
reader.Close();
return(isHaveValue ? t : null);
}
/// <summary>
/// IDataReader转换为实体类
/// </summary>
/// <param name="reader">源IDataReader</param>
/// <typeparam name="TEntity">实体类</typeparam>
public static List <TEntity> ToList <TEntity>(this IDataReader reader) where TEntity : class, new()
{
var list = new List <TEntity>();
var map = SetMapCacheManger.Cache(typeof(TEntity));
while (reader.Read())
{
var t = (TEntity)Activator.CreateInstance(typeof(TEntity));
//赋值字段
foreach (var kic in map.MapList)
{
if (HaveName(reader, kic.Value.Field.Name))
{
if (!kic.Key.CanWrite)
{
continue;
}
var oVal = ConvertHelper.ConvertType(reader[kic.Value.Field.Name], kic.Key.PropertyType);
PropertySetCacheManger.Cache(kic.Key, t, oVal);
}
}
list.Add(t);
}
reader.Close();
return(list);
}
/// <summary>
/// DataTable转换为实体类
/// </summary>
/// <param name="dt">源DataTable</param>
/// <typeparam name="TEntity">实体类</typeparam>
public static List <TEntity> ToList <TEntity>(this DataTable dt) where TEntity : class, new()
{
var list = new List <TEntity>();
var map = SetMapCacheManger.Cache(typeof(TEntity));
foreach (DataRow dr in dt.Rows)
{
// 赋值字段
var t = new TEntity();
foreach (var kic in map.MapList)
{
if (!kic.Key.CanWrite)
{
continue;
}
var filedName = kic.Value.Field.IsFun ? kic.Key.Name : kic.Value.Field.Name;
if (dr.Table.Columns.Contains(filedName))
{
var oVal = ConvertHelper.ConvertType(dr[filedName], kic.Key.PropertyType);
PropertySetCacheManger.Cache(kic.Key, t, oVal);
}
}
list.Add(t);
}
return(list);
}
/// <summary>
/// 将DataRow转成实体类
/// </summary>
/// <typeparam name="TEntity">实体类</typeparam>
/// <param name="dr">源DataRow</param>
public static TEntity ToInfo <TEntity>(DataRow dr) where TEntity : class, new()
{
var map = SetMapCacheManger.Cache(typeof(TEntity));
var t = new TEntity();
//赋值字段
foreach (var kic in map.MapList)
{
if (!kic.Key.CanWrite)
{
continue;
}
var filedName = kic.Value.Field.IsFun ? kic.Key.Name : kic.Value.Field.Name;
if (dr.Table.Columns.Contains(filedName))
{
var oVal = dr[filedName].ConvertType(kic.Key.PropertyType);
if (oVal == null)
{
continue;
}
PropertySetCacheManger.Cache(kic.Key, t, oVal);
}
}
return(t);
}
/// <summary>
/// 将集合类转换成DataTable
/// </summary>
/// <param name="lst">集合</param>
/// <returns></returns>
public static DataTable ToTable <TEntity>(this List <TEntity> lst) where TEntity : class
{
var dt = new DataTable();
if (lst.Count == 0)
{
return(dt);
}
var map = SetMapCacheManger.Cache(typeof(TEntity));
var lstFields = map.MapList.Where(o => o.Value.Field.IsMap).OrderBy(o => o.Value.Field.FieldIndex).ToList();
// 添加DataTable列
foreach (var field in lstFields)
{
// 对 List 类型处理
var type = field.Key.PropertyType.GetNullableArguments();
if (type.IsEnum)
{
type = typeof(int);
}
var col = new DataColumn(field.Value.Field.Name, type)
{
AutoIncrement = field.Value.Field.IsDbGenerated
};
dt.Columns.Add(col);
}
foreach (var info in lst)
{
var dr = dt.NewRow();
foreach (var field in lstFields)
{
var value = ConvertHelper.GetValue(info, field.Key.Name, (object)null);
var type = field.Key.PropertyType.GetNullableArguments();
// 枚举特殊处理
if (type.IsEnum)
{
value = (int)(value ?? 0);
}
dr[field.Value.Field.Name] = (value == null && !type.IsClass) || field.Value.Field.IsDbGenerated ? 0 : value;
}
dt.Rows.Add(dr);
}
return(dt);
}
/// <summary>
/// 将DataRow转成实体类
/// </summary>
/// <typeparam name="TEntity">实体类</typeparam>
/// <param name="dr">源DataRow</param>
public static TEntity ToInfo <TEntity>(this DataRow dr) where TEntity : class, new()
{
var map = SetMapCacheManger.Cache(typeof(TEntity));
var t = (TEntity)Activator.CreateInstance(typeof(TEntity));
//赋值字段
foreach (var kic in map.MapList)
{
if (dr.Table.Columns.Contains(kic.Value.Field.Name))
{
if (!kic.Key.CanWrite)
{
continue;
}
PropertySetCacheManger.Cache(kic.Key, t, dr[kic.Value.Field.Name].ConvertType(kic.Key.PropertyType));
}
}
return(t ?? new TEntity());
}
/// <summary>
/// 检测实体类值状况
/// </summary>
/// <param name="dicError">返回错误消息,key：属性名称；vakue：错误消息</param>
/// <param name="entity">要检测的实体</param>
public static bool Check <TEntity>(this TEntity entity, out Dictionary <string, List <string> > dicError) where TEntity : IVerification
{
dicError = new Dictionary <string, List <string> >();
var map = SetMapCacheManger.Cache(typeof(TEntity));
foreach (var kic in map.MapList)
{
var lstError = new List <string>();
var value = PropertyGetCacheManger.Cache(kic.Key, entity);
// 是否必填
if (kic.Value.Required != null && !kic.Value.Required.IsValid(value))
{
lstError.Add(kic.Value.Required.ErrorMessage);
}
//if (value == null) { continue; }
// 字符串长度判断
if (kic.Value.StringLength != null && !kic.Value.StringLength.IsValid(value))
{
lstError.Add(kic.Value.StringLength.ErrorMessage);
}
// 值的长度
if (kic.Value.Range != null && !kic.Value.Range.IsValid(value))
{
lstError.Add(kic.Value.Range.ErrorMessage);
}
// 正则
if (kic.Value.RegularExpression != null && !kic.Value.RegularExpression.IsValid(value))
{
lstError.Add(kic.Value.RegularExpression.ErrorMessage);
}
if (lstError.Count > 0)
{
dicError.Add(kic.Key.Name, lstError);
}
}
return(dicError.Count == 0);
}
/// <summary>
/// 将集合类转换成DataTable
/// </summary>
/// <param name="lst">集合</param>
/// <returns></returns>
public static DataTable ToTable <TEntity>(this List <TEntity> lst) where TEntity : class
{
var dt = new DataTable();
if (lst.Count == 0)
{
return(dt);
}
var map = SetMapCacheManger.Cache(typeof(TEntity));
var lstFields = map.MapList.Where(o => o.Value.Field.IsMap).ToList();
foreach (var field in lstFields)
{
var type = field.Key.PropertyType;
// 对 List 类型处理
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof(Nullable <>))
{
type = type.GetGenericArguments()[0];
}
dt.Columns.Add(field.Value.Field.Name, type);
}
foreach (var info in lst)
{
dt.Rows.Add(dt.NewRow());
foreach (var field in lstFields)
{
var value = ConvertHelper.GetValue(info, field.Key.Name, (object)null);
if (value == null)
{
continue;
}
if (!dt.Columns.Contains(field.Value.Field.Name))
{
dt.Columns.Add(field.Value.Field.Name);
}
dt.Rows[dt.Rows.Count - 1][field.Value.Field.Name] = value;
}
}
return(dt);
}
/// <summary>
/// 将XML转成实体
/// </summary>
public static List <TEntity> ToList <TEntity>(this XElement element) where TEntity : class
{
var orm = SetMapCacheManger.Cache(typeof(TEntity));
var list = new List <TEntity>();
foreach (var el in element.Elements())
{
var t = (TEntity)Activator.CreateInstance(typeof(TEntity));
//赋值字段
foreach (var kic in orm.MapList)
{
var type = kic.Key.PropertyType;
if (!kic.Key.CanWrite)
{
continue;
}
//switch (kic.Value.PropertyExtend)
{
//case eumPropertyExtend.Attribute:
// if (el.Attribute(kic.Value.Name) == null) { continue; }
//kic.Key.SetValue(t, el.Attribute(kic.Value.Name).Value.ConvertType(type), null);
// PropertySetCacheManger.Cache(kic.Key, t, el.Attribute(kic.Value.Name).Value.ConvertType(type));
// break;
// case eumPropertyExtend.Element:
if (el.Element(kic.Value.Field.Name) == null)
{
continue;
}
//kic.Key.SetValue(t, el.Element(kic.Value.Name).Value.ConvertType(type), null);
PropertySetCacheManger.Cache(kic.Key, t, el.Element(kic.Value.Field.Name).Value.ConvertType(type));
break;
}
}
list.Add(t);
}
return(list);
}
/// <summary>
/// 获取字段名称
/// </summary>
/// <param name="select">字段名称</param>
/// <returns></returns>
public static string GetUsedName <T1, T2>(this Expression <Func <T1, T2> > select) where T1 : class
{
MemberExpression memberExpression;
var unary = @select.Body as UnaryExpression;
if (unary != null)
{
memberExpression = unary.Operand as MemberExpression;
}
else if (@select.Body.NodeType == ExpressionType.Call)
{
memberExpression = (MemberExpression)((MethodCallExpression)@select.Body).Object;
}
else
{
memberExpression = @select.Body as MemberExpression;
}
var map = SetMapCacheManger.Cache(typeof(T1));
var modelInfo = map.GetState((memberExpression.Member).Name);
return(modelInfo.Value.Field.Name);
}
/// <summary>
/// 关系映射
/// </summary>
/// <param name="type">实体类Type</param>
public ContextPhysicsMap(Type type)
{
Type = type;
// 当前调用的程序集，用于判断是否属于farseer.net.dll程序集
var currentAssembly = Assembly.GetCallingAssembly();
// 遍历所有Set属性(表、视图、存储过程的名称),取得对应使用标记名称
foreach (var propertyInfo in Type.GetProperties(BindingFlags.Instance | BindingFlags.FlattenHierarchy | BindingFlags.GetProperty | BindingFlags.Public))
{
// 必须是farseer.net.dll程序集
if (!propertyInfo.CanWrite || propertyInfo.PropertyType.Assembly != currentAssembly || (propertyInfo.DeclaringType != null && propertyInfo.DeclaringType.Assembly == currentAssembly))
{
continue;
}
// 设置每个Set属性（目前有Set是非泛型的）
EntityMapList[propertyInfo] = propertyInfo.PropertyType.IsGenericType ? SetMapCacheManger.Cache(propertyInfo.PropertyType.GetGenericArguments()[0]) : null;
}
}
/// <summary>
/// 根据TEntity实体，动态生成派生类
/// </summary>
private Type BuildEntity(Type entityType)
{
//var entityType = typeof(TEntity);
var setPhysicsMap = SetMapCacheManger.Cache(entityType); // new SetPhysicsMap(entityType);
var clsName = entityType.Name + "ByDataRow"; // 类名
var sb = new StringBuilder();
#if !CORE
sb.AppendLine("using System;");
sb.AppendLine("using System.Collections.Generic;");
sb.AppendLine("using FS.Core;");
sb.AppendLine("using FS.Utils.Common;");
sb.AppendLine("using FS.Data.Infrastructure;");
sb.AppendLine($"namespace {entityType.Namespace}\r\n{{");
#endif
sb.AppendLine($"public class {clsName} : {entityType.FullName}\r\n{{");
// DataRow构造
sb.AppendLine(CreateToList(entityType));
// DataTable构造
sb.AppendLine(CreateToEntity(entityType, setPhysicsMap));
sb.AppendLine("}");
#if !CORE
sb.AppendLine("}");
#endif
#if !CORE
CompilerResults results = null;
try
{
var compilerParams = new CompilerParameters
{
CompilerOptions = "/target:library /optimize", //编译器选项设置
GenerateInMemory = true, //编译时在内存输出
IncludeDebugInformation = false //生成调试信息
};
//添加相关的引用
compilerParams.ReferencedAssemblies.Add("System.dll");
compilerParams.ReferencedAssemblies.Add("System.Data.dll");
compilerParams.ReferencedAssemblies.Add("System.Xml.dll");
var ass = AppDomain.CurrentDomain.GetAssemblies(); // 得到当前所有程序集
compilerParams.ReferencedAssemblies.Add(ass.FirstOrDefault(o => o.ManifestModule.Name == "Farseer.Net.dll")?.Location);
compilerParams.ReferencedAssemblies.Add(ass.FirstOrDefault(o => o.ManifestModule.Name == "Farseer.Net.Core.dll")?.Location);
compilerParams.ReferencedAssemblies.Add(ass.FirstOrDefault(o => o.ManifestModule.Name == "Farseer.Net.Data.dll")?.Location);
// 加载成员依赖的类型所在的程序集
var properties = entityType.GetProperties();
foreach (var propertyInfo in properties)
{
// 找到真实程序集
var declaringType = propertyInfo.PropertyType.GetNullableArguments();
while (declaringType.IsGenericType)
{
declaringType = declaringType.GetGenericType();
}
compilerParams.ReferencedAssemblies.Add(declaringType.Assembly.Location);
}
// 需要把基类型的dll，也载进来
var baseType = entityType;
while (baseType != null)
{
compilerParams.ReferencedAssemblies.Add(baseType.Assembly.Location);
baseType = baseType.BaseType;
}
var compiler = CodeDomProvider.CreateProvider("CSharp");
//编译
results = compiler.CompileAssemblyFromSource(compilerParams, sb.ToString());
return(results.CompiledAssembly.GetExportedTypes()[0]);
}
catch (Exception exp)
{
if (results != null)
{
var error = new string[results.Errors.Count];
for (int i = 0; i < error.Length; i++)
{
error[i] = results.Errors[i].ErrorText;
IocManager.Instance.Logger.Error(error[i]);
}
throw new Exception(error.ToString(","));
}
IocManager.Instance.Logger.Error(exp.ToString());
throw exp;
}
#else
var scriptOptions = ScriptOptions.Default;
scriptOptions = scriptOptions.AddReferences(typeof(List <>).Assembly, typeof(ConvertHelper).Assembly, typeof(MapingData).Assembly, entityType.Assembly);
scriptOptions = scriptOptions.AddImports("System.Collections.Generic");
scriptOptions = scriptOptions.AddImports("FS.Core");
scriptOptions = scriptOptions.AddImports("FS.Utils.Common");
scriptOptions = scriptOptions.AddImports("FS.Data.Infrastructure");
// 加载成员依赖的类型所在的程序集
var properties = entityType.GetProperties();
foreach (var propertyInfo in properties)
{
// 找到真实程序集
var declaringType = propertyInfo.PropertyType.GetNullableArguments();
while (declaringType.IsGenericType)
{
declaringType = declaringType.GetGenericType();
}
scriptOptions = scriptOptions.AddReferences(declaringType.Assembly);
}
// 需要把基类型的dll，也载进来
var baseType = entityType;
while (baseType != null)
{
scriptOptions = scriptOptions.AddReferences(baseType.Assembly);
baseType = baseType.BaseType;
}
var scriptState = CSharpScript.Create(sb.ToString(), scriptOptions).RunAsync().Result;
var asmName = scriptState.Script.GetCompilation().AssemblyName;
var assembly = AppDomain.CurrentDomain.GetAssemblies().First(a => a.FullName.StartsWith(asmName, StringComparison.OrdinalIgnoreCase));
return(assembly.DefinedTypes.FirstOrDefault(o => o.Name == clsName));
#endif
}
