public BeeDataAdapter(BeeDataAdapter dataAdapter)
: this()
{
if (dataAdapter != null)
{
foreach (string key in dataAdapter.Keys)
{
Add(key, dataAdapter[key]);
}
}
}
public BeeDataAdapter Merge(BeeDataAdapter dataAdapter, bool overrideFlag)
{
foreach (string key in dataAdapter.Keys)
{
if (overrideFlag)
{
this[key] = dataAdapter[key];
}
else
{
if (!this.ContainsKey(key))
{
this[key] = dataAdapter[key];
}
}
}
return(this);
}
/// <summary>
/// 从一个对象实例中构造一个DataAdapter.
/// 若是String的话， 则采用简单Json构造。
/// 符合正则： "(?<name>.*?)":"(?<value>.*?)"
/// </summary>
/// <typeparam name="T">对象类型</typeparam>
/// <param name="value">对象值</param>
/// <returns>DataAdapter实例</returns>
public static BeeDataAdapter From <T>(T value) where T : class
{
BeeDataAdapter dataAdapter = new BeeDataAdapter();
if (value != null)
{
if (value is string)
{
string temp = value.ToString();
if (!string.IsNullOrEmpty(temp))
{
Dictionary <string, object> dict = SerializeUtil.FromJson <Dictionary <string, object> >(temp);
foreach (string item in dict.Keys)
{
dataAdapter[item] = dict[item];
}
}
}
else if (value is DataRow)
{
var dataRow = value as DataRow;
if (dataRow != null)
{
foreach (DataColumn column in dataRow.Table.Columns)
{
object dbValue = dataRow[column];
if (dbValue == DBNull.Value)
{
continue;
}
dataAdapter.Add(column.ColumnName, dataRow[column]);
}
}
}
else
{
IEntityProxy entityProxy = EntityProxyManager.Instance.GetEntityProxyFromType(value.GetType());
foreach (PropertySchema item in entityProxy.GetPropertyList())
{
object propertyValue =
entityProxy.GetPropertyValue(value, item.Name);
if (ReflectionUtil.IsNullableType(item.PropertyType) && propertyValue == null)
{
continue;
}
if (propertyValue is Enum)
{
propertyValue = ((Enum)propertyValue).ToString("D");
}
if (item.PropertyType.UnderlyingSystemType == typeof(DateTime))
{
if (string.Compare("modifytime", item.Name, true) == 0 ||
string.Compare("updatetime", item.Name, true) == 0)
{
propertyValue = DateTime.Now;
}
if ((DateTime)propertyValue == DateTime.MinValue)
{
if (string.Compare("createtime", item.Name, true) == 0)
{
propertyValue = DateTime.Now;
}
else
{
continue;
}
}
}
dataAdapter.Add(item.Name, propertyValue);
}
}
}
return(dataAdapter);
}
