//生成语句插入的成员。
private void GenerateForInsertStatementMembers(GenerateContext context, DbNewExpression newitem,
QueryBaseFragment source, InsertFragment insert, Func <PropertyInfo, ColumnMetadata> getmember)
{
int count = 0;
foreach (var item in newitem.Members)
{
count++;
insert.CreateMember(null, getmember((PropertyInfo)item.Key));
IMemberFragment member = null;
if (_CreateExpressionMethods.TryGetValue(item.Value.ExpressionType, out CreateExpressionDelegate method))
{
member = RetrievalMemberForExpression(context, source, item.Value, item.Key, false);
}
else if (_RetrievalMemberMethods.TryGetValue(item.Value.ExpressionType, out RetrievalMemberDelegate method1))
{
member = method1(context, source, item.Value, item.Key, false);
}
else
{
throw new NotSupportedException(Res.NotSupportedCreateInsertMember);
}
if (source.Members.Count != count)
{
source.Members.Add(member);
}
}
}
private DbUnitItemTypeExpression NewTranslate(TranslationContext context, NewExpression exp)
{
var memberCount = exp.Members == null ? 0 : exp.Members.Count;
if (exp.Arguments.Count != memberCount)
{
throw new TranslateException(exp, Res.ExceptionIsMustParameterlessConstructor);
}
var newExp = new DbNewExpression(exp.Type);
for (int i = 0; i < memberCount; i++)
{
newExp.Members.Add(exp.Members[i], ExpressionTranslate(context, exp.Arguments[i]));
}
return(newExp);
}
private DbUnitItemTypeExpression MemberInitTranslate(TranslationContext context, MemberInitExpression exp)
{
if (exp.NewExpression.Arguments.Count > 0)
{
throw new TranslateException(exp, Res.ExceptionIsMustParameterlessConstructor);
}
var newExp = new DbNewExpression(exp.Type);
foreach (var bind in exp.Bindings)
{
switch (bind.BindingType)
{
case MemberBindingType.Assignment:
newExp.Members.Add(bind.Member, ExpressionTranslate(context, ((MemberAssignment)bind).Expression));
break;
default:
throw new NotSupportedException(string.Format(Res.NotSupportedNewMemberBindingType, bind.BindingType));
}
}
return(newExp);
}
public override ISqlPart Visit(DbNewExpression dbExpression)
{
throw new NotImplementedException();
}
