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IncludeMany 非导航加载，支持多级

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This commit is contained in:
28810 2019-05-15 17:59:49 +08:00
parent defaa224fb
commit fe016c017d
2 changed files with 50 additions and 14 deletions
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28
FreeSql.Tests/Sqlite/Curd/SqliteSelectTest.cs
View File

@ -757,9 +757,29 @@ namespace FreeSql.Tests.Sqlite {
Assert.Equal("SELECT a.\"Id\", a.\"Clicks\", a.\"TypeGuid\", a.\"Title\", a.\"CreateTime\" FROM \"tb_topic22AsTable1\" a LEFT JOIN \"TestTypeInfo\" b on b.\"Guid\" = a.\"TypeGuid\" and b.\"Name\" = @bname", sql);
}
class TestInclude_OneToManyModel1 {
[Column(IsIdentity = true)]
public int id { get; set; }
public virtual TestInclude_OneToManyModel2 model2 { get; set; }
}
class TestInclude_OneToManyModel2 {
[Column(IsPrimary = true)]
public int model2id { get; set; }
public virtual TestInclude_OneToManyModel2 model1 { get; set; }
public virtual List<TestInclude_OneToManyModel3> childs { get; set; }
}
class TestInclude_OneToManyModel3 {
[Column(IsIdentity = true)]
public int id { get; set; }
public string title { get; set; }
}
[Fact]
public void Include_OneToMany() {
var model1 = new TestInclude_OneToManyModel1 { };
model1.id = (int)g.sqlite.Insert(model1).ExecuteIdentity();
}
[Fact]
public void Include_OneToChilds() {
@ -891,6 +911,12 @@ namespace FreeSql.Tests.Sqlite {
Assert.Equal(2, songs2[0].Tags.Count);
Assert.Equal(1, songs2[1].Tags.Count);
Assert.Equal(3, songs2[2].Tags.Count);
var tags3 = g.sqlite.Select<Song_tag>()
.Include(a => a.Tag.Parent)
.IncludeMany(a => a.Tag.Songs)
.Where(a => a.Tag.Id == tag1.Id || a.Tag.Id == tag2.Id)
.ToList(true);
}
}
}

36
FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
View File

@ -352,8 +352,11 @@ namespace FreeSql.Internal.CommonProvider {
if (tb == null) throw throwNavigateSelector;
var tbNav = _commonUtils.GetTableByEntity(typeof(TNavigate));
if (tbNav == null) throw new Exception($"类型 {typeof(TNavigate).FullName} 错误，不能使用 IncludeMany");
TableRef tbref = null;
if (collMem.Expression.NodeType != ExpressionType.Parameter)
_commonExpression.ExpressionWhereLambda(_tables, Expression.MakeMemberAccess(collMem.Expression, tb.Properties[tb.ColumnsByCs.First().Value.CsName]), null);
TableRef tbref = null;
if (whereExp == null) {
tbref = tb.GetTableRef(collMem.Member.Name, true);
@ -383,19 +386,27 @@ namespace FreeSql.Internal.CommonProvider {
var leftP1MemberExp = binaryExp.Left as MemberExpression;
var rightP1MemberExp = binaryExp.Right as MemberExpression;
if (leftP1MemberExp == null || rightP1MemberExp == null) throw throwNavigateSelector;
if (leftP1MemberExp.Expression != tmpExp && leftP1MemberExp.Expression != whereExpArgLamb.Parameters[0] ||
rightP1MemberExp.Expression != tmpExp && rightP1MemberExp.Expression != whereExpArgLamb.Parameters[0]) throw throwNavigateSelector;
if (leftP1MemberExp.Expression == tmpExp && rightP1MemberExp.Expression == whereExpArgLamb.Parameters[0]) {
tbref.Columns.Add(tb.ColumnsByCs[leftP1MemberExp.Member.Name]);
tbref.RefColumns.Add(tbNav.ColumnsByCs[rightP1MemberExp.Member.Name]);
return;
}
if (rightP1MemberExp.Expression == tmpExp && leftP1MemberExp.Expression == whereExpArgLamb.Parameters[0]) {
if (leftP1MemberExp.Expression == whereExpArgLamb.Parameters[0]) {
var rightParExp = rightP1MemberExp;
while (rightParExp.Expression != tmpExp) {
rightParExp = rightParExp.Expression as MemberExpression;
if (rightParExp == null) throw throwNavigateSelector;
}
tbref.Columns.Add(tb.ColumnsByCs[rightP1MemberExp.Member.Name]);
tbref.RefColumns.Add(tbNav.ColumnsByCs[leftP1MemberExp.Member.Name]);
return;
}
if (rightP1MemberExp.Expression == whereExpArgLamb.Parameters[0]) {
var leftParExp = leftP1MemberExp;
while (leftParExp.Expression != tmpExp) {
leftParExp = leftParExp.Expression as MemberExpression;
if (leftParExp == null) throw throwNavigateSelector;
}
tbref.Columns.Add(tb.ColumnsByCs[leftP1MemberExp.Member.Name]);
tbref.RefColumns.Add(tbNav.ColumnsByCs[rightP1MemberExp.Member.Name]);
return;
}
throw throwNavigateSelector;
default: throw throwNavigateSelector;
@ -407,9 +418,6 @@ namespace FreeSql.Internal.CommonProvider {
if (tbref.Columns.Any() == false) throw throwNavigateSelector;
}
if (collMem.Expression.NodeType != ExpressionType.Parameter)
_commonExpression.ExpressionWhereLambda(_tables, Expression.MakeMemberAccess(collMem.Expression, tb.Properties[tb.ColumnsByCs.First().Value.CsName]), null);
_includeToList.Enqueue(listObj => {
var list = listObj as List<T1>;
if (list == null) return;
@ -448,7 +456,9 @@ namespace FreeSql.Internal.CommonProvider {
if (true) {
var tbref2 = _commonUtils.GetTableByEntity(tbref.RefEntityType);
if (tbref.Columns.Count == 1) {
var arrExp = Expression.NewArrayInit(tbref.Columns[0].CsType, list.Select(a => Expression.Constant(Convert.ChangeType(getListValue(a, tbref.Columns[0].CsName), tbref.Columns[0].CsType))).Distinct().ToArray());
var arrExp = Expression.NewArrayInit(tbref.Columns[0].CsType,
list.Select(a => getListValue(a, tbref.Columns[0].CsName)).Distinct()
.Select(a => Expression.Constant(Convert.ChangeType(a, tbref.Columns[0].CsType))).ToArray());
var otmExpParm1 = Expression.Parameter(typeof(TNavigate), "a");
var containsMethod = _dicTypeMethod.GetOrAdd(tbref.Columns[0].CsType, et => new ConcurrentDictionary<string, MethodInfo>()).GetOrAdd("Contains", mn =>
typeof(Enumerable).GetMethods().Where(a => a.Name == mn).First()).MakeGenericMethod(tbref.Columns[0].CsType);