/// <summary>
/// 获取实体指定成员对应的数据库字段名称
/// </summary>
/// <param name="entityType">实体类别</param>
/// <param name="appointMemberNames">指定成员的名称</param>
/// <returns>数据库字段名称</returns>
public static List<string> GetDBColumnNameOfAppointMembers(Type entityType, List<string> appointMemberNames)
{
List<string> dbColumnNames = new List<string>(appointMemberNames.Count);
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
for (int i = 0; i < appointMemberNames.Count; i++)
{
dbColumnNames.Add(definitionItme.DBColumnNameMappings[appointMemberNames[i]]);
}
return dbColumnNames;
}
/// <summary>
/// 填充实体类和数据库的映射关系
/// </summary>
/// <param name="entityType"></param>
/// <param name="dbColumnNames"></param>
/// <param name="entityPropertys"></param>
public static void FillEntityMappings(Type entityType, List<string> dbColumnNames, List<PropertyInfo> entityPropertys)
{
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
string[] memberNames = definitionItme.EntityEffectiveMemberNames;
for (int i = 0; i < memberNames.Length; i++)
{
dbColumnNames.Add(definitionItme.DBColumnNameMappings[memberNames[i]]);
entityPropertys.Add(definitionItme.EntityEffectivePropertyInfos[memberNames[i]]);
}
}
/// <summary>
/// 获取主键的组成字段
/// </summary>
/// <param name="entityType">实体类的类型</param>
/// <returns>主键的组成字段</returns>
public static List<string> GetColumnNamesOfPrimaryKey(Type entityType)
{
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
return definitionItme.ColumnNamesOfPrimaryKey;
}
public static string GetDbColumnName(Type entityType, string memberName)
{
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
return definitionItme.DBColumnNameMappings[memberName];
}
/// <summary>
/// 获取标识字段的名称
/// </summary>
/// <param name="entityType">实体类的类型</param>
/// <returns>标识字段的名称</returns>
public static string GetColumnNameOfIndentity(Type entityType)
{
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
return definitionItme.IdentityColumnName;
}
/// <summary>
/// 获取指定字段的属性
/// </summary>
/// <param name="entityType"></param>
/// <param name="appointMemberNames"></param>
/// <returns></returns>
public static List<PropertyInfo> GetPropertyInfosOfAppointMembers(Type entityType, List<string> appointMemberNames)
{
List<PropertyInfo> dbPropertyInfos = new List<PropertyInfo>(appointMemberNames.Count);
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
for (int i = 0; i < appointMemberNames.Count; i++)
{
dbPropertyInfos.Add(definitionItme.EntityEffectivePropertyInfos[appointMemberNames[i]]);
}
return dbPropertyInfos;
}
/// <summary>
/// 获取指定数据库字段对应的属性（需要考虑部分字段没有对应的实体成员）
/// </summary>
/// <param name="entityType"></param>
/// <param name="appointDBColumns"></param>
/// <returns></returns>
public static List<PropertyInfo> GetPropertyInfosOfAppointDBColumns(Type entityType, List<string> appointDBColumns)
{
List<PropertyInfo> dbPropertyInfos = new List<PropertyInfo>(appointDBColumns.Count);
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
for (int i = 0; i < appointDBColumns.Count; i++)
{
if (!definitionItme.DBColumnNameReverseMappings.ContainsKey(appointDBColumns[i]))
{
dbPropertyInfos.Add(null);
continue;
}
string memberName = definitionItme.DBColumnNameReverseMappings[appointDBColumns[i]];
dbPropertyInfos.Add(definitionItme.EntityEffectivePropertyInfos[memberName]);
}
return dbPropertyInfos;
}
/// <summary>
/// 获取主键相关的成员
/// </summary>
/// <param name="entityType">实体类的类型</param>
/// <returns>主键相关的成员</returns>
public static List<string> GetEntityMemberOfPrimaryKey(Type entityType)
{
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
return definitionItme.EntityMembersOfPrimaryKey;
}
/// <summary>
/// 获取标识字段对应的成员
/// </summary>
/// <param name="entityType">实体类的类型</param>
/// <returns>标识字段对应的成员</returns>
public static string GetEntityMemberOfIndentity(Type entityType)
{
EntityDefinitionBufferItem definitionItme = entityType.GetDefinitionItem();
return definitionItme.EntityMemberOfIdentityColumn;
}
