public PocoData Build()
{
var pocoData = new PocoData(Type, Mapper);
pocoData.TableInfo = _tableInfoPlan();
pocoData.Members = _memberPlans.Select(plan => plan(pocoData.TableInfo)).ToList();
pocoData.Columns = GetPocoColumns(pocoData.Members, false).Where(x => x != null).ToDictionary(x => x.ColumnName, x => x, StringComparer.OrdinalIgnoreCase);
pocoData.AllColumns = GetPocoColumns(pocoData.Members, true).Where(x => x != null).ToList();
//Build column list for automatic select
pocoData.QueryColumns = pocoData.Columns.Where(c => !c.Value.ResultColumn && c.Value.ReferenceType == ReferenceType.None).ToArray();
return pocoData;
}
public PocoData ForObject(object o, string primaryKeyName)
{
var t = o.GetType();
#if !POCO_NO_DYNAMIC
if (t == typeof(System.Dynamic.ExpandoObject) || t == typeof(PocoExpando))
{
var pd = new PocoData();
pd.TableInfo = new TableInfo();
pd.Columns = new Dictionary<string, PocoColumn>(StringComparer.OrdinalIgnoreCase);
pd.Columns.Add(primaryKeyName, new ExpandoColumn() {ColumnName = primaryKeyName});
pd.TableInfo.PrimaryKey = primaryKeyName;
pd.TableInfo.AutoIncrement = true;
foreach (var col in ((IDictionary<string, object>) o).Keys)
{
if (col != primaryKeyName)
pd.Columns.Add(col, new ExpandoColumn() {ColumnName = col});
}
return pd;
}
else
#endif
return ForType(t);
}
public static PocoData ForObjectStatic(object o, string primaryKeyName, bool autoIncrement, Func<Type, PocoData> fallback)
{
var t = o.GetType();
#if !NET35
if (t == typeof (System.Dynamic.ExpandoObject) || t == typeof (PocoExpando))
{
var pd = new PocoData();
pd.TableInfo = new TableInfo();
pd.Columns = new Dictionary<string, PocoColumn>(StringComparer.OrdinalIgnoreCase);
pd.Columns.Add(primaryKeyName, new ExpandoColumn() {ColumnName = primaryKeyName});
pd.TableInfo.PrimaryKey = primaryKeyName;
pd.TableInfo.AutoIncrement = autoIncrement;
foreach (var col in ((IDictionary<string, object>) o))
{
if (col.Key != primaryKeyName)
pd.Columns.Add(col.Key, new ExpandoColumn()
{
ColumnName = col.Key,
MemberInfoData = new MemberInfoData(col.Key, col.Value.GetTheType() ?? typeof (object), typeof (object)),
});
}
return pd;
}
else
#endif
return fallback(t);
}
public MappingFactory(PocoData pocoData)
{
_pocoData = pocoData;
}
public MappingFactory(PocoData pocoData, DbDataReader dataReader)
{
_pocoData = pocoData;
_rowMapper = RowMappers.Select(mapper => mapper()).First(x => x.ShouldMap(pocoData));
_rowMapper.Init(dataReader, pocoData);
}
static List <PropertyInfo> RelevantProperties(PocoData pocoData)
{
return(pocoData.Columns.Values.Where(x => !x.MemberInfo.IsField()).Select(x => ((PropertyInfo)x.MemberInfo)).ToList());
}
public object GetColumnValue(PocoData pd, object target, Func<PocoColumn, object, object> callback = null)
{
callback = callback ?? ((_, o) => o);
if (ReferenceType == ReferenceType.Foreign)
{
var member = pd.Members.Single(x => x.MemberInfoData == MemberInfoData);
var column = member.PocoMemberChildren.SingleOrDefault(x => x.Name == member.ReferenceMemberName);
if (column == null)
{
throw new Exception(string.Format("Could not find member on '{0}' with name '{1}'", member.MemberInfoData.MemberType, member.ReferenceMemberName));
}
return callback(column.PocoColumn, column.PocoColumn.GetValue(target));
}
else
{
return callback(this, GetValue(target));
}
}
private static List <Change> Diff(T original, T current, PocoData pocoData)
{
differ = differ ?? GenerateDiffer(pocoData);
return(differ(original, current));
}
private static T Clone(T myObject, PocoData data)
{
cloner = cloner ?? GenerateCloner(data);
return(cloner(myObject));
}
public Snapshot(PocoData data, T original)
{
pocoData = data;
memberWiseClone = Clone(original, pocoData);
trackedObject = original;
}
private static Func <T, T, List <Change> > GenerateDiffer(PocoData pocoData)
{
var dm = new DynamicMethod("DoDiff", typeof(List <Change>), new Type[] { typeof(T), typeof(T) }, true);
var il = dm.GetILGenerator();
// change list
il.DeclareLocal(typeof(List <Change>));
il.DeclareLocal(typeof(Change));
il.DeclareLocal(typeof(object)); // boxed change
il.DeclareLocal(typeof(object)); // orig val
il.Emit(OpCodes.Newobj, typeof(List <Change>).GetConstructor(Type.EmptyTypes));
// [list]
il.Emit(OpCodes.Stloc_0);
foreach (var prop in RelevantProperties(pocoData))
{
// []
il.Emit(OpCodes.Ldarg_0);
// [original]
il.Emit(OpCodes.Callvirt, prop.GetGetMethod());
// [original prop val]
il.Emit(OpCodes.Dup);
// [original prop val, original prop val]
if (prop.PropertyType != typeof(string))
{
il.Emit(OpCodes.Box, prop.PropertyType);
// [original prop val, original prop val boxed]
}
il.Emit(OpCodes.Stloc_3);
// [original prop val]
il.Emit(OpCodes.Ldarg_1);
// [original prop val, current]
il.Emit(OpCodes.Callvirt, prop.GetGetMethod());
// [original prop val, current prop val]
il.Emit(OpCodes.Dup);
// [original prop val, current prop val, current prop val]
if (prop.PropertyType != typeof(string))
{
il.Emit(OpCodes.Box, prop.PropertyType);
// [original prop val, current prop val, current prop val boxed]
}
il.Emit(OpCodes.Stloc_2);
// [original prop val, current prop val]
il.EmitCall(OpCodes.Call, typeof(Snapshot <T>).GetMethod("AreEqual", BindingFlags.NonPublic | BindingFlags.Static).MakeGenericMethod(new Type[] { prop.PropertyType }), null);
// [result]
Label skip = il.DefineLabel();
il.Emit(OpCodes.Brtrue_S, skip);
// []
il.Emit(OpCodes.Newobj, typeof(Change).GetConstructor(Type.EmptyTypes));
// [change]
il.Emit(OpCodes.Dup);
// [change,change]
il.Emit(OpCodes.Stloc_1);
// [change]
il.Emit(OpCodes.Ldstr, prop.Name);
// [change, name]
il.Emit(OpCodes.Callvirt, typeof(Change).GetMethod("set_Name"));
// []
il.Emit(OpCodes.Ldloc_1);
// [change]
il.Emit(OpCodes.Ldloc_3);
// [change, original prop val boxed]
il.Emit(OpCodes.Callvirt, typeof(Change).GetMethod("set_OldValue"));
// []
il.Emit(OpCodes.Ldloc_1);
// [change]
il.Emit(OpCodes.Ldloc_2);
// [change, boxed]
il.Emit(OpCodes.Callvirt, typeof(Change).GetMethod("set_NewValue"));
// []
il.Emit(OpCodes.Ldloc_0);
// [change list]
il.Emit(OpCodes.Ldloc_1);
// [change list, change]
il.Emit(OpCodes.Callvirt, typeof(List <Change>).GetMethod("Add"));
// []
il.MarkLabel(skip);
}
il.Emit(OpCodes.Ldloc_0);
// [change list]
il.Emit(OpCodes.Ret);
return((Func <T, T, List <Change> >)dm.CreateDelegate(typeof(Func <T, T, List <Change> >)));
}
public Snapshot(PocoData pocoData, T trackedObject)
{
_pocoData = pocoData;
_trackedObject = trackedObject;
PopulateValues(trackedObject);
}
