public PocoData(Type t, IMapper mapper, Cache <string, Type> aliasToTypeCache) : this()
{
aliasToType = aliasToTypeCache;
type = t;
Mapper = mapper;
TableInfo = TableInfo.FromPoco(t);
// Call column mapper
if (Mapper != null)
{
Mapper.GetTableInfo(t, TableInfo);
}
var alias = CreateAlias(type.Name, type);
TableInfo.AutoAlias = alias;
var index = 0;
// Work out bound properties
Columns = new Dictionary <string, PocoColumn>(StringComparer.OrdinalIgnoreCase);
foreach (var mi in ReflectionUtils.GetFieldsAndPropertiesForClasses(t))
{
ColumnInfo ci = ColumnInfo.FromMemberInfo(mi);
if (ci.IgnoreColumn)
{
continue;
}
var pc = new PocoColumn();
pc.TableInfo = TableInfo;
pc.MemberInfo = mi;
pc.ColumnName = ci.ColumnName;
pc.ResultColumn = ci.ResultColumn;
pc.ForceToUtc = ci.ForceToUtc;
pc.ComputedColumn = ci.ComputedColumn;
pc.ColumnType = ci.ColumnType;
pc.ColumnAlias = ci.ColumnAlias;
pc.VersionColumn = ci.VersionColumn;
pc.VersionColumnType = ci.VersionColumnType;
if (Mapper != null && !Mapper.MapMemberToColumn(mi, ref pc.ColumnName, ref pc.ResultColumn))
{
continue;
}
pc.AutoAlias = alias + "_" + index++;
// Store it
if (!Columns.ContainsKey(pc.ColumnName))
{
Columns.Add(pc.ColumnName, pc);
}
}
// Build column list for automatic select
QueryColumns = Columns.Where(c => !c.Value.ResultColumn).ToArray();
}
private static void PushMemberOntoStack(ILGenerator il, PocoColumn pc)
{
if (pc.MemberInfo.IsField())
{
il.Emit(OpCodes.Stfld, (FieldInfo)pc.MemberInfo);
}
else
{
il.Emit(OpCodes.Callvirt, ((PropertyInfo)pc.MemberInfo).GetSetMethodOnDeclaringType());
}
}
public static Func <object, object> GetConverter(IMapper mapper, PocoColumn pc, Type srcType, Type dstType)
{
Func <object, object> converter = null;
// Get converter from the mapper
if (mapper != null)
{
converter = pc != null?mapper.GetFromDbConverter(pc.MemberInfo, srcType) : mapper.GetFromDbConverter(dstType, srcType);
if (converter != null)
{
return(converter);
}
}
// Standard DateTime->Utc mapper
if (pc != null && pc.ForceToUtc && srcType == typeof(DateTime) && (dstType == typeof(DateTime) || dstType == typeof(DateTime?)))
{
converter = delegate(object src) { return(new DateTime(((DateTime)src).Ticks, DateTimeKind.Utc)); };
return(converter);
}
// Forced type conversion including integral types -> enum
var underlyingType = _underlyingTypes.Get(dstType, () => Nullable.GetUnderlyingType(dstType));
if (dstType.IsEnum || (underlyingType != null && underlyingType.IsEnum))
{
if (srcType == typeof(string))
{
converter = src => EnumMapper.EnumFromString((underlyingType ?? dstType), (string)src);
return(converter);
}
if (IsIntegralType(srcType))
{
converter = src => Enum.ToObject((underlyingType ?? dstType), src);
return(converter);
}
}
else if (!dstType.IsAssignableFrom(srcType))
{
converter = src => Convert.ChangeType(src, (underlyingType ?? dstType), null);
}
return(converter);
}
public static bool TryGetColumnByName(Dictionary <string, PocoColumn> columns, string name, out PocoColumn pc)
{
// Try to get the column by name directly (works when the poco property name matches the DB column name).
var found = (columns.TryGetValue(name, out pc) || columns.TryGetValue(name.Replace("_", ""), out pc));
if (!found)
{
// Try to get the column by the poco member name (the poco property name is different from the DB column name).
pc = columns.Values.Where(c => c.MemberInfo.Name == name).FirstOrDefault();
found = (pc != null);
}
return(found);
}
