private string GetDataEntitySetCode(DbMapInfo info)
{
Type targetType = Nullable.GetUnderlyingType(info.PropertyInfo.PropertyType) ?? info.PropertyInfo.PropertyType;
string code, typeName;
typeName = targetType.ToString();
if (info.AttrColumn != null && info.AttrColumn.TimeStamp)
{
if (typeName == "System.Int64")
{
typeName = "TimeStampToLong";
}
if (typeName == "System.Byte[]")
{
typeName = "TimeStampToByte";
}
}
if (s_dictEntiySetCode.TryGetValue(typeName, out code))
{
return(string.Format(code, info.NetName));
}
else
{
throw new NotSupportedException("不支持的实体数据类型");
}
}
private string OutPropertyGetValue(DbMapInfo info, string varName)
{
if (info.PropertyInfo.PropertyType.IsClass)
{
return(string.Format("({0}.{1} ?? (object)DBNull.Value)", varName, info.NetName));
}
else if (info.PropertyInfo.PropertyType.IsNullableType())
{
return(string.Format("({0}.{1}.HasValue ? {0}.{1}.Value : (object)DBNull.Value)", varName, info.NetName));
}
else
{
return(string.Format("{0}.{1}", varName, info.NetName));
}
}
public static TypeDescription GetTypeDiscription(Type type)
{
TypeDescription description = s_typeInfoDict[type.FullName] as TypeDescription;
if (description == null)
{
PropertyInfo[] properties = type.GetProperties(s_flag);
int length = properties.Length;
Dictionary <string, DbMapInfo> dict = new Dictionary <string, DbMapInfo>(length, StringComparer.OrdinalIgnoreCase);
foreach (PropertyInfo prop in properties)
{
DbMapInfo info = null;
DataColumnAttribute attrColumn = prop.GetMyAttribute <DataColumnAttribute>();
IgnoreColumnAttribute attrIgnore = prop.GetMyAttribute <IgnoreColumnAttribute>();
if (attrColumn != null)
{
info = new DbMapInfo(string.IsNullOrEmpty(attrColumn.Alias) ? prop.Name : attrColumn.Alias, prop.Name, attrColumn, attrIgnore, prop);
}
else
{
info = new DbMapInfo(prop.Name, prop.Name, null, attrIgnore, prop);
}
dict[info.DbName] = info;
}
description = new TypeDescription {
MemberDict = dict
};
// 添加到缓存字典
s_typeInfoDict[type.FullName] = description;
}
return(description);
}
private void SetField(DbMapInfo info, string varName, string paraNamePrefix)
{
_sb.AppendFormat("query=query+ \" [{0}] = \" + (new SqlParameter(\"@{1}{3}\", {2}));\r\n",
info.DbName, paraNamePrefix, OutPropertyGetValue(info, varName), info.NetName);
}
public CodeGenerator(Type entityType)
{
_entityType = entityType;
_sb = new StringBuilder(1024 * 20);
DataEntityAttribute entityAttr = _entityType.GetMyAttribute <DataEntityAttribute>();
string tableName;
if (entityAttr == null)
{
tableName = _entityType.Name;
}
else
{
tableName = string.IsNullOrEmpty(entityAttr.Alias) ? _entityType.Name : entityAttr.Alias;
}
_tableInfo = new DbMapInfo(tableName, _entityType.Name, null, null, null);
_allFields = new List <DbMapInfo>(20);
_keyFields = new List <DbMapInfo>(3);
DbMapInfo info = null;
foreach (PropertyInfo property in _entityType.GetProperties(BindingFlags.Instance | BindingFlags.Public))
{
string fieldName = property.Name;
IgnoreColumnAttribute attrIgnore = property.GetMyAttribute <IgnoreColumnAttribute>();
if (attrIgnore != null)
{
continue;
}
DataColumnAttribute attrColumn = property.GetMyAttribute <DataColumnAttribute>();
if (attrColumn != null)
{
if (string.IsNullOrEmpty(attrColumn.Alias) == false)
{
fieldName = attrColumn.Alias;
}
info = new DbMapInfo(fieldName, property.Name, attrColumn, attrIgnore, property);
_allFields.Add(new DbMapInfo(fieldName, property.Name, attrColumn, attrIgnore, property));
if (attrColumn.Identity)
{
_identityField = info;
}
if (attrColumn.TimeStamp)
{
_timeStampField = info;
}
if (attrColumn.SeqGuid)
{
_seqGuidField = info;
}
if (attrColumn.PrimaryKey)
{
_keyFields.Add(info);
}
}
else
{
_allFields.Add(new DbMapInfo(fieldName, property.Name, null, attrIgnore, property));
}
}
}
