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https://github.com/nsnail/FreeSql.git
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自动贪婪加载 LeftJoin/InnerJoin/RightJoin 数据
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2881099
parent
6c64eac419
commit
191a15fb42
@ -10,17 +10,17 @@ namespace FreeSql.Tests.Sqlite {
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public class SqliteCodeFirstTest {
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class Topic {
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public class Topic {
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public Guid Id { get; set; }
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public string Title { get; set; }
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public string Content { get; set; }
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public DateTime CreateTime { get; set; }
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}
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[Table(Name = "xxxtb.Comment")]
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class Comment {
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public class Comment {
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public Guid Id { get; set; }
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public Guid TopicId { get; set; }
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public Topic Topic { get; set; }
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public virtual Topic Topic { get; set; }
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public string Nickname { get; set; }
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public string Content { get; set; }
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public DateTime CreateTime { get; set; }
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@ -54,6 +54,10 @@ namespace FreeSql.Tests {
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[Fact]
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public void Test1() {
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var sql = g.sqlite.Select<TestTypeParentInfo>().Where(a => a.Parent.Parent.Parent.Name == "11").ToSql();
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var sql222 = g.sqlite.Select<TestTypeParentInfo>().Where(a => a.Parent.Parent.Parent.Name == "11").ToList();
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Expression<Func<TestInfo, object>> orderBy = null;
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orderBy = a => a.CreateTime;
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var testsql1 = select.OrderBy(orderBy).ToSql();
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@ -46,7 +46,7 @@ namespace FreeSql.Internal.CommonProvider {
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//toType.GetField("_tables", BindingFlags.Instance | BindingFlags.NonPublic)?.SetValue(to, new List<SelectTableInfo>(from._tables.ToArray()));
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var _multiTables = toType.GetField("_tables", BindingFlags.Instance | BindingFlags.NonPublic).GetValue(to) as List<SelectTableInfo>;
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_multiTables[0] = from._tables[0];
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for (var a = 1;a < lambParms.Count; a++) {
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for (var a = 1; a < lambParms.Count; a++) {
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var tb = from._tables.Where(b => b.Alias == lambParms[a].Name && b.Table.Type == lambParms[a].Type).FirstOrDefault();
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if (tb != null) _multiTables[a] = tb;
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else {
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@ -235,7 +235,7 @@ namespace FreeSql.Internal.CommonProvider {
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Type type = typeof(TTuple);
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_orm.Ado.ExecuteReader(_connection, _transaction, dr => {
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var read = Utils.ExecuteArrayRowReadClassOrTuple(type, null, dr, 0, _commonUtils);
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ret.Add((TTuple)read.Value);
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ret.Add((TTuple) read.Value);
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}, CommandType.Text, sql, _params.ToArray());
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_orm.Aop.ToList?.Invoke(this, new AopToListEventArgs(ret));
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_trackToList?.Invoke(ret);
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@ -251,7 +251,7 @@ namespace FreeSql.Internal.CommonProvider {
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Type type = typeof(TTuple);
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await _orm.Ado.ExecuteReaderAsync(_connection, _transaction, dr => {
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var read = Utils.ExecuteArrayRowReadClassOrTuple(type, null, dr, 0, _commonUtils);
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ret.Add((TTuple)read.Value);
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ret.Add((TTuple) read.Value);
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return Task.CompletedTask;
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}, CommandType.Text, sql, _params.ToArray());
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_orm.Aop.ToList?.Invoke(this, new AopToListEventArgs(ret));
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@ -311,7 +311,7 @@ namespace FreeSql.Internal.CommonProvider {
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Type type = typeof(TReturn);
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_orm.Ado.ExecuteReader(_connection, _transaction, dr => {
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var index = -1;
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ret.Add((TReturn)_commonExpression.ReadAnonymous(af.map, dr, ref index, false));
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ret.Add((TReturn) _commonExpression.ReadAnonymous(af.map, dr, ref index, false));
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}, CommandType.Text, sql, _params.ToArray());
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_orm.Aop.ToList?.Invoke(this, new AopToListEventArgs(ret));
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_trackToList?.Invoke(ret);
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@ -327,7 +327,7 @@ namespace FreeSql.Internal.CommonProvider {
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Type type = typeof(TReturn);
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await _orm.Ado.ExecuteReaderAsync(_connection, _transaction, dr => {
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var index = -1;
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ret.Add((TReturn)_commonExpression.ReadAnonymous(af.map, dr, ref index, false));
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ret.Add((TReturn) _commonExpression.ReadAnonymous(af.map, dr, ref index, false));
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return Task.CompletedTask;
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}, CommandType.Text, sql, _params.ToArray());
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_orm.Aop.ToList?.Invoke(this, new AopToListEventArgs(ret));
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@ -350,6 +350,126 @@ namespace FreeSql.Internal.CommonProvider {
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public Func<IFreeSql, DbDataReader, T1> Read { get; set; }
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}
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protected GetAllFieldExpressionTreeInfo GetAllFieldExpressionTree() {
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return _dicGetAllFieldExpressionTree.GetOrAdd(string.Join("+", _tables.Select(a => $"{_orm.Ado.DataType}-{a.Table.DbName}-{a.Alias}-{a.Type}")), s => {
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var type = _tables.First().Table.TypeLazy ?? _tables.First().Table.Type;
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var ormExp = Expression.Parameter(typeof(IFreeSql), "orm");
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var rowExp = Expression.Parameter(typeof(DbDataReader), "row");
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var returnTarget = Expression.Label(type);
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var retExp = Expression.Variable(type, "ret");
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var dataIndexExp = Expression.Variable(typeof(int), "dataIndex");
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var readExp = Expression.Variable(typeof(Utils.RowInfo), "read");
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var readExpValue = Expression.MakeMemberAccess(readExp, Utils.RowInfo.PropertyValue);
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var readExpDataIndex = Expression.MakeMemberAccess(readExp, Utils.RowInfo.PropertyDataIndex);
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var blockExp = new List<Expression>();
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var ctor = type.GetConstructor(new Type[0]) ?? type.GetConstructors().First();
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blockExp.AddRange(new Expression[] {
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Expression.Assign(retExp, Expression.New(ctor, ctor.GetParameters().Select(a => Expression.Default(a.ParameterType)))),
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Expression.Assign(dataIndexExp, Expression.Constant(0))
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});
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//typeof(Topic).GetMethod("get_Type").IsVirtual
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var field = new StringBuilder();
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var dicfield = new Dictionary<string, bool>();
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var tb = _tables.First();
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var index = 0;
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var tbiindex = 0;
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foreach (var tbi in _tables.ToArray().OrderBy(a => a.Alias)) {
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if (tbiindex > 0 && tbi.Type == SelectTableInfoType.From) continue;
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if (tbiindex > 0 && tbi.Alias.StartsWith($"{tb.Alias}__") == false) continue;
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var typei = tbi.Table.TypeLazy ?? tbi.Table.Type;
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if (tbiindex == 0)
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blockExp.AddRange(new Expression[] {
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Expression.Assign(readExp, Expression.Call(Utils.MethodExecuteArrayRowReadClassOrTuple, new Expression[] { Expression.Constant(typei), Expression.Constant(null, typeof(int[])), rowExp, dataIndexExp, Expression.Constant(_commonUtils) })),
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Expression.IfThen(
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Expression.GreaterThan(readExpDataIndex, dataIndexExp),
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Expression.Assign(dataIndexExp, readExpDataIndex)
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),
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Expression.IfThen(
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Expression.NotEqual(readExpValue, Expression.Constant(null)),
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Expression.Assign(retExp, Expression.Convert(readExpValue, typei))
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)
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});
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else {
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Expression curExpIfNotNull = Expression.IsTrue(Expression.Constant(true));
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Expression curExp = retExp;
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var curTb = tb;
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var parentNameSplits = tbi.Alias.Split(new[] { "__" }, StringSplitOptions.None);
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var iscontinue = false;
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for (var k = 1; k < parentNameSplits.Length; k++) {
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var curPropName = parentNameSplits[k];
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if (curTb.Table.Properties.TryGetValue(parentNameSplits[k], out var tryprop) == false) {
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k++;
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curPropName = $"{curPropName}__{parentNameSplits[k]}";
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if (curTb.Table.Properties.TryGetValue(parentNameSplits[k], out tryprop) == false) {
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iscontinue = true;
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break;
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}
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}
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curExp = Expression.MakeMemberAccess(curExp, tryprop);
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if (k + 1 < parentNameSplits.Length)
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curExpIfNotNull = Expression.AndAlso(curExpIfNotNull, Expression.NotEqual(curExp, Expression.Default(tryprop.PropertyType)));
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curTb = _tables.Where(a => a.Alias == $"{curTb.Alias}__{curPropName}" && a.Table.Type == tryprop.PropertyType).FirstOrDefault();
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if (curTb == null) {
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iscontinue = true;
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break;
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}
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}
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if (iscontinue) continue;
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blockExp.Add(
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Expression.IfThen(
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curExpIfNotNull,
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Expression.Block(new Expression[] {
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Expression.Assign(readExp, Expression.Call(Utils.MethodExecuteArrayRowReadClassOrTuple, new Expression[] { Expression.Constant(typei), Expression.Constant(null, typeof(int[])), rowExp, dataIndexExp, Expression.Constant(_commonUtils) })),
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Expression.IfThen(
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Expression.GreaterThan(readExpDataIndex, dataIndexExp),
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Expression.Assign(dataIndexExp, readExpDataIndex)
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),
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Expression.IfThen(
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Expression.NotEqual(readExpValue, Expression.Constant(null)),
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Expression.Assign(curExp, Expression.Convert(readExpValue, typei))
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)
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})
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)
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);
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}
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if (tbi.Table.TypeLazy != null)
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blockExp.Add(
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Expression.IfThen(
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Expression.NotEqual(readExpValue, Expression.Constant(null)),
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Expression.Call(retExp, tbi.Table.TypeLazySetOrm, ormExp)
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)
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); //将 orm 传递给 lazy
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var colidx = 0;
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foreach (var col in tbi.Table.Columns.Values) {
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if (index > 0) {
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field.Append(", ");
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if (tbiindex > 0 && colidx == 0) field.Append("\r\n");
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}
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var quoteName = _commonUtils.QuoteSqlName(col.Attribute.Name);
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field.Append(_commonUtils.QuoteReadColumn(col.CsType, $"{tbi.Alias}.{quoteName}"));
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++index;
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if (dicfield.ContainsKey(quoteName)) field.Append(" as").Append(index);
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else dicfield.Add(quoteName, true);
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++colidx;
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}
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tbiindex++;
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}
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blockExp.AddRange(new Expression[] {
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Expression.Return(returnTarget, retExp),
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Expression.Label(returnTarget, Expression.Default(type))
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});
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return new GetAllFieldExpressionTreeInfo {
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Field = field.ToString(),
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Read = Expression.Lambda<Func<IFreeSql, DbDataReader, T1>>(Expression.Block(new[] { retExp, dataIndexExp, readExp }, blockExp), new[] { ormExp, rowExp }).Compile()
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};
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});
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}
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protected GetAllFieldExpressionTreeInfo GetAllFieldExpressionTreeLevel2() {
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return _dicGetAllFieldExpressionTree.GetOrAdd(string.Join("+", _tables.Select(a => $"{_orm.Ado.DataType}-{a.Table.DbName}-{a.Alias}-{a.Type}")), s => {
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var tb1 = _tables.First().Table;
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var type = tb1.TypeLazy ?? tb1.Type;
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@ -390,7 +510,9 @@ namespace FreeSql.Internal.CommonProvider {
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var tb2 = _tables.Where((a, b) => b > 0 &&
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(a.Type == SelectTableInfoType.InnerJoin || a.Type == SelectTableInfoType.LeftJoin || a.Type == SelectTableInfoType.RightJoin) &&
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string.IsNullOrEmpty(a.On) == false &&
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a.Alias.Contains(prop.Name)).FirstOrDefault(); //判断 b > 0 防止 parent 递归关系
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a.Alias.StartsWith($"{tb.Alias}__") && //开头结尾完全匹配
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a.Alias.EndsWith($"__{prop.Name}") //不清楚会不会有其他情况 求大佬优化
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).FirstOrDefault(); //判断 b > 0 防止 parent 递归关系
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if (tb2 == null && props.Where(pw => pw.Value.PropertyType == prop.PropertyType).Count() == 1)
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tb2 = _tables.Where((a, b) => b > 0 &&
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(a.Type == SelectTableInfoType.InnerJoin || a.Type == SelectTableInfoType.LeftJoin || a.Type == SelectTableInfoType.RightJoin) &&
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@ -501,7 +623,8 @@ namespace FreeSql.Internal.CommonProvider {
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else dicfield.Add(quoteName, true);
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child.Childs.Add(new ReadAnonymousTypeInfo {
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Property = tb2.Table.Type.GetProperty(col2.CsName, BindingFlags.Public | BindingFlags.IgnoreCase | BindingFlags.Instance),
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CsName = col2.CsName });
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CsName = col2.CsName
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});
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}
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}
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map.Childs.Add(child);
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