ABP学习之旅

1、我使用ABP的启动模板(http://www.aspnetboilerplate.com/Templates)来创建一个Web应用程序。

2、加载项目解决方案

  在abp根据模板创建解决方案后,编译报错,提示某个包的版本不对。
  解决方案:https://dotnet.myget.org/F/aspnetcore-dev/api/v3/index.json

  

3、在.Core中创建entity

  生成poco实体类的工具:EntityFramework Reverse POCO Generator,可以根据数据库生成具有DataAnnotations的实体类:
  可以通过vs的扩展安装,也可以通过这个地址:https://marketplace.visualstudio.com/items?itemName=SimonHughes.EntityFrameworkReversePOCOGenerator#qna
  生成DataAnnotations特性,需要在T4中做如下设置更改:

  • Settings.ConnectionStringName = "Test"; // Searches for this connection string in config files listed below in the ConfigFilenameSearchOrder setting
  • Settings.UseDataAnnotations = true; // If true, will add data annotations to the poco classes.
  • Settings.UseDataAnnotationsSchema = true; // UseDataAnnotations must also be true. If true, will add data annotations schema to the poco classes.
  • 在dataAnnotation上加长字段长度,针对char和varcahr:
      if (Settings.UseDataAnnotations)
        {
            if(c.Ordinal > 1 && !commentWritten)
                WriteLine(string.Empty);    // Leave a blank line before the next property

            foreach (var dataAnnotation in c.DataAnnotations)
            {        
                //将char、varchar的dataAnnotation上加上长度,如varchar(10),以兼容.net core
                if(dataAnnotation.ToString().StartsWith("Column"))
                {                    
                    if(dataAnnotation.ToString().Contains("varchar"))
                        WriteLine("        [" + dataAnnotation.ToString().Replace("varchar","varchar("+c.MaxLength+")") + "]");
                    else if(dataAnnotation.ToString().Contains("char"))
                        WriteLine("        [" + dataAnnotation.ToString().Replace("char","char("+c.MaxLength+")")+ "]");
                }
                else
                {
                    WriteLine("        [" + dataAnnotation + "]");
                }

            }
        }

4、方法EntityFramworkCore的DBContext增加DBSet

======================================

Add-Migration "Initial"

update-database

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posted @ 2018-03-26 16:16  瘋孑  阅读(341)  评论(0编辑  收藏  举报