public IEnumerable <SubscriptionForSubmitView> CreateSubscriptionsByTextbook(string term, string textbookName, string isbn)
{
//删除未征订的订单
RemoveNotSubscription();
_subscriptionRepo.Context.Commit();
//取未征订的申报
var studentDeclarations = GetNotSubscriptionStudentDeclarationJiaoWu(term);
var teacherDeclarations = GetNotSubscriptionTeacherDeclarationJiaoWu(term);
//合并
var declarations = studentDeclarations.Union <DeclarationJiaoWu>(teacherDeclarations);
//按教材筛选
IEnumerable <DeclarationJiaoWu> query;
//教材名称为空，则按ISBN筛选
if (string.IsNullOrWhiteSpace(textbookName))
{
if (string.IsNullOrWhiteSpace(isbn))
{
query = declarations;
}
else
{
query = declarations.Where(t => t.Textbook.Isbn.Contains(isbn));
}
}
else
{
query = declarations.Where(t => t.Textbook.Name.Contains(textbookName));
}
//生成订单
var subscriptions = SubscriptionService.CreateSubscriptions(
query.OfType <StudentDeclarationJiaoWu>(),
query.OfType <TeacherDeclarationJiaoWu>()
).ToList();
//写入DB
subscriptions.ForEach(t => _subscriptionRepo.Add(t));
_subscriptionRepo.Context.Commit();
//返回
return(_adapter.Adapt <SubscriptionForSubmitView>(subscriptions.OrderBy(t => t.Textbook.Name)));
}