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- 增加 MaxLength 特性的解析，实体字符串长度设置；

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This commit is contained in:
28810 2019-09-11 20:40:52 +08:00
parent 96bf97bb7f
commit bddcf9c0bc
5 changed files with 56 additions and 11 deletions
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5
Examples/base_entity/Entities/User.cs
View File

@ -1,6 +1,7 @@
using FreeSql;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
public class UserGroup : BaseEntity<UserGroup, int>
{
@ -35,20 +36,24 @@ public class User1 : BaseEntity<User1, Guid>
/// <summary>
/// 登陆名
/// </summary>
[MaxLength(32)]
public string Username { get; set; }
/// <summary>
/// 昵称
/// </summary>
[MaxLength(64)]
public string Nickname { get; set; }
/// <summary>
/// 头像
/// </summary>
[MaxLength(1024)]
public string Avatar { get; set; }
/// <summary>
/// 描述
/// </summary>
[MaxLength(4000)]
public string Description { get; set; }
}

7
FreeSql/DataAnnotations/ColumnAttribute.cs
View File

@ -15,7 +15,8 @@ namespace FreeSql.DataAnnotations
/// </summary>
public string OldName { get; set; }
/// <summary>
/// 数据库类型，如： varchar(255)
/// 数据库类型，如： varchar(255) <para></para>
/// 字符串长度，可使用特性 MaxLength(255)
/// </summary>
public string DbType { get; set; }
@ -82,7 +83,7 @@ namespace FreeSql.DataAnnotations
internal short? _Position;
/// <summary>
/// 创建表时字段位置，规则如下：
/// 创建表时字段的位置（场景：实体继承后设置字段顺序），规则如下：
/// <para></para>
/// &gt;0时排前面，1,2,3...
/// <para></para>
@ -91,5 +92,5 @@ namespace FreeSql.DataAnnotations
/// &lt;0时排后面，...-3,-2,-1
/// </summary>
public short Position { get => _Position ?? 0; set => _Position = value; }
}
}
}

2
FreeSql/FreeSql.xml
View File

@ -61,7 +61,7 @@
</member>
<member name="P:FreeSql.DataAnnotations.ColumnAttribute.Position">
<summary>
创建表时字段位置，规则如下：
创建表时字段的位置（场景：实体继承后设置字段顺序），规则如下：
<para></para>
&gt;0时排前面，1,2,3...
<para></para>

49
FreeSql/FreeSqlBuilder.cs
View File

@ -181,31 +181,31 @@ namespace FreeSql
switch (_entityPropertyConvertType)
{
case StringConvertType.Lower:
ret.Aop.ConfigEntityProperty = (s, e) =>
ret.Aop.ConfigEntityProperty += (s, e) =>
{
e.ModifyResult.Name = e.Property.Name.ToLower();
};
break;
case StringConvertType.Upper:
ret.Aop.ConfigEntityProperty = (s, e) =>
ret.Aop.ConfigEntityProperty += (s, e) =>
{
e.ModifyResult.Name = e.Property.Name.ToUpper();
};
break;
case StringConvertType.PascalCaseToUnderscore:
ret.Aop.ConfigEntityProperty = (s, e) =>
ret.Aop.ConfigEntityProperty += (s, e) =>
{
e.ModifyResult.Name = StringUtils.PascalCaseToUnderScore(e.Property.Name);
};
break;
case StringConvertType.PascalCaseToUnderscoreWithLower:
ret.Aop.ConfigEntityProperty = (s, e) =>
ret.Aop.ConfigEntityProperty += (s, e) =>
{
e.ModifyResult.Name = StringUtils.PascalCaseToUnderScore(e.Property.Name).ToLower();
};
break;
case StringConvertType.PascalCaseToUnderscoreWithUpper:
ret.Aop.ConfigEntityProperty = (s, e) =>
ret.Aop.ConfigEntityProperty += (s, e) =>
{
e.ModifyResult.Name = StringUtils.PascalCaseToUnderScore(e.Property.Name).ToUpper();
};
@ -214,6 +214,45 @@ namespace FreeSql
break;
}
}
//处理 MaxLength
ret.Aop.ConfigEntityProperty += new EventHandler<Aop.ConfigEntityPropertyEventArgs>((s, e) =>
{
object[] attrs = null;
try
{
attrs = e.Property.GetCustomAttributes(false).ToArray(); //.net core 反射存在版本冲突问题，导致该方法异常
}
catch { }
var maxlenAttr = attrs.Where(a => {
return ((a as Attribute)?.TypeId as Type)?.Name == "MaxLengthAttribute";
}).FirstOrDefault();
if (maxlenAttr != null)
{
var lenProp = maxlenAttr.GetType().GetProperties().Where(a => a.PropertyType.IsNumberType()).FirstOrDefault();
if (lenProp != null && int.TryParse(string.Concat(lenProp.GetValue(maxlenAttr, null)), out var tryval) && tryval > 0)
{
switch (ret.Ado.DataType)
{
case DataType.MySql:
e.ModifyResult.DbType = $"varchar({tryval})";
break;
case DataType.SqlServer:
e.ModifyResult.DbType = $"nvarchar({tryval})";
break;
case DataType.PostgreSQL:
e.ModifyResult.DbType = $"varchar({tryval})";
break;
case DataType.Oracle:
e.ModifyResult.DbType = $"nvarchar2({tryval})";
break;
case DataType.Sqlite:
e.ModifyResult.DbType = $"nvarchar({tryval})";
break;
}
}
}
});
}
return ret;