在Entity Framework Plus中在IncludeFilter上使用AND&&运算符不会带回嵌套/子对象

问题描述

我只是想用Entity Framework Plus带回具有复杂约束/要求的数据。我能够成功使用它，但是在IncludeFilter（）方法内部使用&&运算符时，无法获得嵌套/子对象。

我有一个Company对象>每个都有多个CommunicationLink对象>每个CommunicationLink对象都有一个Communication对象。我已经得出结论，添加多个“包含过滤器”可用于复制“或”功能（||），但是我终生无法使用AND运算符过滤结果并获得嵌套对象通过。下面是示例代码：

示例1：

//2 WHERE CLAUSES
var companiesData = _dbContext.Companies
     .IncludeFilter(comp => comp.CommunicationLinks
                .Where(cmli =>
                    string.Equals(cmli.Communication.Action,"PhoneOut")
                )
                .Where(cmli => cmli.UserId == comp.AccountManager) 
                .Select(comm => comm) //I believe this is where the problem lies
      )
      .Where(co =>
           string.Equals(co.Type,"Customer")
           && string.Equals(co.Status,"Active")
           && co.Deleted != 1 
       )
       .OrderBy(c => c.Name);

示例2：

   //USING && INSTEAD OF 2 WHERE CLAUSES
    var companiesData = _dbContext.Companies
         .IncludeFilter(comp => comp.CommunicationLinks
                    .Where(cmli =>
                        string.Equals(cmli.Communication.Action,"PhoneOut")
                        && cmli.UserId == comp.AccountManager 
                    )
                    .Select(comm => comm) //I believe this is where the problem lies
          )
          .Where(co =>
               string.Equals(co.Type,"Customer")
               && string.Equals(co.Status,"Active")
               && co.Deleted != 1 
           )
           .OrderBy(c => c.Name);

我试图过滤结果，以仅带回其子Communication.Action字段为“ PhoneOut”且Communication.UserId等于Company.AccountManager（Id）中的值的CommunicationLink记录。过滤后的结果运行良好，但是这些记录的Communication对象（我​​希望通过.Select（）方法获得）返回为null。

解决方法

今天早晨在挣扎了一段时间之后，我解决了它。

//2 WHERE CLAUSES
var companiesData = _dbContext.Companies
     .IncludeFilter(comp => comp.CommunicationLinks
                .Where(cmli =>
                    string.Equals(cmli.Communication.Action,"PhoneOut")
                )
                .Where(cmli => cmli.UserId == comp.AccountManager) 
                .Select(comm => comm.Communication) //forgot Communication!!
      )
      .Where(co =>
           string.Equals(co.Type,"Customer")
           && string.Equals(co.Status,"Active")
           && co.Deleted != 1 
       )
       .OrderBy(c => c.Name);