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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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36
FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
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@ -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);