private static string GetDbString(ColumnInfo columnInfo, object v)
{
if (!IsNull(v))
{
if (columnInfo.IsNullable && IsNullValue(v)) return "NULL";
if (columnInfo.PropertyType == typeof(string) || columnInfo.PropertyType == typeof(DateTime)) return string.Format("'{0}'", v);
return v.ToString();
}
if (!columnInfo.IsNullable)
{
if (columnInfo.PropertyType == typeof(string)) return "''";
return columnInfo.PropertyType == typeof(DateTime) ? string.Format("'{0}'", MinDateString) : "0";
}
return "NULL";
}
private static ClassMetadata CreatePersistentClass(System.Type type)
{
ClassMetadata result = null;
if (type != null)
{
result = new ClassMetadata { EntityType = type, EntityName = type.Name };
var at = type.GetCustomAttributes(false);
if (at.Length > 0)
{
var tableAttribute = (TableAttribute)at[0];
result.TableName = tableAttribute.Name;
result.TableName = tableAttribute.Name;
result.AssociateTable = tableAttribute.AssociateTable;
result.ForeignKey = tableAttribute.ForeignKey;
}
var columnInfos = new List<ColumnInfo>();
var propertyInfos = type.GetProperties();
ColumnInfo model;
foreach (var info in propertyInfos)
{
model = new ColumnInfo { PropertyInfo = info };
var attributes = info.GetCustomAttributes(false);
foreach (var att in attributes)
{
if (att is ColumnAttribute)
{
var ptt = att as ColumnAttribute;
model.PropertyName = info.Name;
model.PropertyType = info.PropertyType.IsGenericType && info.PropertyType.GetGenericTypeDefinition() == typeof(Nullable<>) ? info.PropertyType.GetGenericArguments()[0] : info.PropertyType;
if (ptt.IsPrimaryKey)
{
result.PrimaryKey = info.Name;
result.PKColumnName = ptt.Name;
}
model.IsIncrement = ptt.IsIncrement;
model.IsNullable = ptt.IsNullable;
model.IsUnique = ptt.IsUnique;
model.ParameterDirection = ptt.ParameterDirection;
model.SameParameters = ptt.SameParameters;
model.IsColumn = true;
model.Name = ptt.Name;
model.IsPrimaryKey = ptt.IsPrimaryKey;
model.IsInsertable = ptt.IsInsertable;
model.IsUpdatable = ptt.IsUnique;
model.ColumnDefinition = ptt.ColumnDefinition;
model.Table = ptt.Table;
model.Length = ptt.Length;
model.Precision = ptt.Precision;
model.Scale = ptt.Scale;
}
else
{
//break;
}
}
if (info.DeclaringType != typeof(IEntity))
columnInfos.Add(model);
}
result.ColumnInfos = columnInfos;
}
return result;
}
