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- 增加 ISelect.ToSql 字段别名设置，默认为 AsIndex，可改为 AsProperty；#158

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This commit is contained in:
28810
2019-12-17 22:08:12 +08:00
parent 204b6ecd98
commit fe5b98509b
37 changed files with 309 additions and 45 deletions
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6
FreeSql/Internal/CommonExpression.cs
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@@ -25,6 +25,7 @@ namespace FreeSql.Internal
_common = common;
}
internal const int ReadAnonymousFieldAsCsName = -53129;
public bool ReadAnonymousField(List<SelectTableInfo> _tables, StringBuilder field, ReadAnonymousTypeInfo parent, ref int index, Expression exp, Func<Expression[], string> getSelectGroupingMapString, List<LambdaExpression> whereCascadeExpression, bool isAllDtoMap)
{
Func<ExpTSC> getTSC = () => new ExpTSC { _tables = _tables, getSelectGroupingMapString = getSelectGroupingMapString, tbtype = SelectTableInfoType.From, isQuoteName = true, isDisableDiyParse = false, style = ExpressionStyle.Where, whereCascadeExpression = whereCascadeExpression };
@@ -37,6 +38,7 @@ namespace FreeSql.Internal
parent.DbField = $"-({ExpressionLambdaToSql(exp, getTSC())})";
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(" as").Append(++index);
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(" ").Append(parent.CsName);
return false;
case ExpressionType.Convert: return ReadAnonymousField(_tables, field, parent, ref index, (exp as UnaryExpression)?.Operand, getSelectGroupingMapString, whereCascadeExpression, isAllDtoMap);
case ExpressionType.Constant:
@@ -54,6 +56,7 @@ namespace FreeSql.Internal
parent.DbField = _common.FormatSql("{0}", constExp?.Value);
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(" as").Append(++index);
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(" ").Append(parent.CsName);
return false;
case ExpressionType.Call:
var callExp = exp as MethodCallExpression;
@@ -70,6 +73,7 @@ namespace FreeSql.Internal
parent.DbField = ExpressionLambdaToSql(exp, getTSC());
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(" as").Append(++index);
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(" ").Append(parent.CsName);
return false;
case ExpressionType.Parameter:
case ExpressionType.MemberAccess:
@@ -102,6 +106,7 @@ namespace FreeSql.Internal
parent.DbField = ExpressionLambdaToSql(exp, getTSC());
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(" as").Append(++index);
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(" ").Append(parent.CsName);
parent.MapType = SearchColumnByField(_tables, null, parent.DbField)?.Attribute.MapType ?? exp.Type;
return false;
}
@@ -219,6 +224,7 @@ namespace FreeSql.Internal
parent.DbField = $"({ExpressionLambdaToSql(exp, getTSC())})";
field.Append(", ").Append(parent.DbField);
if (index >= 0) field.Append(" as").Append(++index);
else if (index == ReadAnonymousFieldAsCsName && string.IsNullOrEmpty(parent.CsName) == false) field.Append(" ").Append(parent.CsName);
return false;
}
public object ReadAnonymous(ReadAnonymousTypeInfo parent, DbDataReader dr, ref int index, bool notRead, ReadAnonymousDbValueRef dbValue)