tk/FreeSql
1
0
Fork 0
mirror of https://github.com/nsnail/FreeSql.git synced 2025-06-19 20:38:16 +08:00
Code Issues Packages Projects Releases Wiki Activity

fix WithTempQuery 05

Browse Source
This commit is contained in:
2881099
2022-07-25 22:12:25 +08:00
parent a419036999
commit 2f76a22e21
5 changed files with 177 additions and 42 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
FreeSql/Internal/CommonExpression.cs
View File

@ -51,14 +51,14 @@ namespace FreeSql.Internal
public bool ReadAnonymousField(List<SelectTableInfo> _tables, Func<Type, string, string> _tableRule, StringBuilder field, ReadAnonymousTypeInfo parent, ref int index, Expression exp, Select0Provider select,
BaseDiyMemberExpression diymemexp, List<GlobalFilter.Item> whereGlobalFilter, List<string> findIncludeMany, List<Expression> findSubSelectMany, bool isAllDtoMap)
{
void LocalSetFieldAlias(ref int localIndex)
void LocalSetFieldAlias(ref int localIndex, bool isdiymemexp)
{
if (localIndex >= 0)
{
parent.DbNestedField = $"as{++localIndex}";
field.Append(_common.FieldAsAlias(parent.DbNestedField));
}
else if (diymemexp?.ParseExpMapResult != null)
else if (isdiymemexp && diymemexp?.ParseExpMapResult != null)
parent.DbNestedField = diymemexp.ParseExpMapResult.DbNestedField;
else if (string.IsNullOrEmpty(parent.CsName) == false)
{
@ -77,7 +77,7 @@ namespace FreeSql.Internal
case ExpressionType.NegateChecked:
parent.DbField = $"-({ExpressionLambdaToSql((exp as UnaryExpression)?.Operand, getTSC())})";
field.Append(", ").Append(parent.DbField);
LocalSetFieldAlias(ref index);
LocalSetFieldAlias(ref index, false);
if (parent.CsType == null && exp.Type.IsValueType) parent.CsType = exp.Type;
return false;
case ExpressionType.Convert: return ReadAnonymousField(_tables, _tableRule, field, parent, ref index, (exp as UnaryExpression)?.Operand, select, diymemexp, whereGlobalFilter, findIncludeMany, findSubSelectMany, isAllDtoMap);
@ -96,7 +96,7 @@ namespace FreeSql.Internal
else
parent.DbField = _common.FormatSql("{0}", constExp?.Value);
field.Append(", ").Append(parent.DbField);
LocalSetFieldAlias(ref index);
LocalSetFieldAlias(ref index, false);
if (parent.CsType == null && exp.Type.IsValueType) parent.CsType = exp.Type;
return false;
case ExpressionType.Conditional:
@ -125,7 +125,7 @@ namespace FreeSql.Internal
else
parent.DbField = ExpressionLambdaToSql(exp, getTSC());
field.Append(", ").Append(parent.DbField);
LocalSetFieldAlias(ref index);
LocalSetFieldAlias(ref index, false);
if (parent.CsType == null && exp.Type.IsValueType) parent.CsType = exp.Type;
return false;
case ExpressionType.Parameter:
@ -273,7 +273,7 @@ namespace FreeSql.Internal
if (findcol != null) pdbfield = _common.RereadColumn(findcol, pdbfield);
}
field.Append(", ").Append(pdbfield);
LocalSetFieldAlias(ref index);
LocalSetFieldAlias(ref index, true);
return false;
}
return false;
@ -486,7 +486,7 @@ namespace FreeSql.Internal
}
parent.DbField = $"({ExpressionLambdaToSql(exp, getTSC())})";
field.Append(", ").Append(parent.DbField);
LocalSetFieldAlias(ref index);
LocalSetFieldAlias(ref index, false);
if (parent.CsType == null && exp.Type.IsValueType) parent.CsType = exp.Type;
return false;
}
@ -2178,6 +2178,23 @@ namespace FreeSql.Internal
}
return null;
}
public class ReplaceVisitor : ExpressionVisitor
{
private Expression _oldexp;
private Expression _newexp;
public Expression Modify(Expression find, Expression oldexp, Expression newexp)
{
this._oldexp = oldexp;
this._newexp = newexp;
return Visit(find);
}
protected override Expression VisitMember(MemberExpression node)
{
if (node.Expression == _oldexp)
return Expression.Property(_newexp, node.Member.Name);
return base.VisitMember(node);
}
}
public class ReplaceParameterVisitor : ExpressionVisitor
{
private Expression _replaceExp;

3
FreeSql/Internal/CommonProvider/SelectProvider/Select1Provider.cs
View File

@ -141,11 +141,12 @@ namespace FreeSql.Internal.CommonProvider
{
sql2 = select2sp._tableRule(select2sp._tables[0].Table.Type, null);
if (sql2.StartsWith("(") && sql2.EndsWith(")")) sql2 = sql2.Substring(1, sql2.Length - 2);
if (sql2.StartsWith(" \r\n")) sql2 = sql2.Substring(3);
}
if (string.IsNullOrWhiteSpace(sql2))
sql2 = select2?.ToSql("*");
}
return ret.WithSql(null, sql2);
return ret.WithSql(null, $" \r\n{sql2}");
}
public ISelectGrouping<TKey, T1> GroupBy<TKey>(Expression<Func<T1, TKey>> columns)

61
FreeSql/Internal/CommonProvider/SelectProvider/SelectGroupingProvider.cs
View File

@ -38,7 +38,8 @@ namespace FreeSql.Internal.CommonProvider
ParseExpMapResult = _map;
return _map.DbField;
}
var parentName = ((members.FirstOrDefault() as MemberExpression)?.Expression as MemberExpression)?.Member.Name;
var firstMember = ((members.FirstOrDefault() as MemberExpression)?.Expression as MemberExpression);
var parentName = firstMember?.Member.Name;
switch (parentName)
{
case "Key":
@ -51,29 +52,57 @@ namespace FreeSql.Internal.CommonProvider
ParseExpMapResult = read;
return read.DbField;
case "Value":
var tb = _tables.First();
var curtables = _tables;
SelectTableInfo curtable = null;
var foridx = 0;
if (members.Length > 1)
if (_select._diymemexpWithTempQuery != null && _select._diymemexpWithTempQuery is Select0Provider.WithTempQueryParser tempQueryParser)
{
var mem0 = (members.FirstOrDefault() as MemberExpression);
var mem0Name = mem0?.Member.Name;
if (mem0Name?.StartsWith("Item") == true && int.TryParse(mem0Name.Substring(4), out var tryitemidx))
if (_select._tables.Count == 1)
curtable = _select._tables[0];
else
{
if (tryitemidx == 1) foridx++;
else
curtables = _select._tables;
LocalValueInitData();
}
if (tempQueryParser._outsideTable.Contains(curtable))
{
for (var a = 0; a < members.Length; a++)
members[a] = new CommonExpression.ReplaceVisitor().Modify(members[a], firstMember, curtable.Parameter);
var ret = _select._diymemexpWithTempQuery.ParseExp(members);
ParseExpMapResult = _select._diymemexpWithTempQuery.ParseExpMapResult;
return ret;
}
}
else
{
LocalValueInitData();
}
void LocalValueInitData()
{
curtable = curtables.First();
if (members.Length > 1)
{
var mem0 = (members.FirstOrDefault() as MemberExpression);
var mem0Name = mem0?.Member.Name;
if (mem0Name?.StartsWith("Item") == true && int.TryParse(mem0Name.Substring(4), out var tryitemidx))
{
//var alias = $"SP10{(char)(96 + tryitemidx)}";
var tmptb = _tables.Where((a, idx) => //a.AliasInit == alias &&
a.Table.Type == mem0.Type && idx == tryitemidx - 1).FirstOrDefault();
if (tmptb != null)
if (tryitemidx == 1) foridx++;
else
{
tb = tmptb;
foridx++;
//var alias = $"SP10{(char)(96 + tryitemidx)}";
var tmptb = curtables.Where((a, idx) => //a.AliasInit == alias &&
a.Table.Type == mem0.Type && idx == tryitemidx - 1).FirstOrDefault();
if (tmptb != null)
{
curtable = tmptb;
foridx++;
}
}
}
}
}
var parmExp = Expression.Parameter(tb.Table.Type, tb.Alias);
var parmExp = Expression.Parameter(curtable.Table.Type, curtable.Alias);
Expression retExp = parmExp;
for (var a = foridx; a < members.Length; a++)
{
@ -205,7 +234,7 @@ namespace FreeSql.Internal.CommonProvider
var ret = (_orm as BaseDbProvider).CreateSelectProvider<TDto>(null) as Select1Provider<TDto>;
if (ret._tables[0].Table == null) ret._tables[0].Table = TableInfo.GetDefaultTable(typeof(TDto));
var parser = new Select0Provider.WithTempQueryParser(_select, this, selector, ret._tables[0]);
var sql = this.ToSql(parser._insideSelectList[0].InsideField);
var sql = $"\r\n{this.ToSql(parser._insideSelectList[0].InsideField)}";
ret.WithSql(sql);
ret._diymemexpWithTempQuery = parser;
return ret;