动态操作

弱类型 CRUD

fsql.Insert<object>().AsType(实体类型)
  .AppendData(data)
  .ExecuteAffrows();

fsql.Update<object>().AsType(实体类型)
  .SetSource(data)
  .ExecuteAffrows();

fsql.Select<object>().AsType(实体类型)
  .Where(a => (a as BaseEntity).Id == 1)
  .ExecuteAffrows();

//或者仓储
var repo = fsql.GetRepository<object>();
repo.AsType(实体类型);

repo.Insert(..);
repo.Update(..);
repo.Delete(..);
repo.InsertOrUpdate(..);

字典 CUD

var dic = new Dictionary<string, object>();
dic.Add("id", 1);
dic.Add("name", "xxxx");

fsql.InsertDict(dic).AsTable("table1").ExecuteAffrows();
fsql.UpdateDict(dic).AsTable("table1").WherePrimary("id").ExecuteAffrows();
fsql.DeleteDict(dic).AsTable("table1").ExecuteAffrows();
fsql.InsertOrUpdateDict(dic).AsTable("table1").WherePrimary("id").ExecuteAffrows();

• InsertDict/UpdateDict/DeleteDict/InsertOrUpdateDict 都支持批量操作，对应类型 List<Dictionary<string, object>>

动态条件 WhereDynamicFilter

ISelect.WhereDynamicFilter 方法实现动态过滤条件（与前端交互），支持的操作符：

• Contains/StartsWith/EndsWith/NotContains/NotStartsWith/NotEndsWith：包含/不包含，like '%xx%'，或者 like 'xx%'，或者 like '%xx'
• Equal/NotEqual：等于/不等于
• GreaterThan/GreaterThanOrEqual：大于/大于等于
• LessThan/LessThanOrEqual：小于/小于等于
• Range：范围查询
• DateRange：日期范围，有特殊处理 value[1] + 1
• Any/NotAny：是否符合 value 中任何一项（直白的说是 SQL IN）
• Custom：自定义解析

DynamicFilterInfo dyfilter = JsonConvert.DeserializeObject<DynamicFilterInfo>(@"
{
  ""Logic"" : ""Or"",
  ""Filters"" :
  [
    {
      ""Field"" : ""Code"", ""Operator"" : ""NotContains"", ""Value"" : ""val1"", 
      ""Filters"" : [{ ""Field"" : ""Name"", ""Operator"" : ""NotStartsWith"", ""Value"" : ""val2"" }]
    },
    {
      ""Field"" : ""Parent.Code"", ""Operator"" : ""Equals"", ""Value"" : ""val11"",
      ""Filters"" : [{ ""Field"" : ""Parent.Name"", ""Operator"" : ""Contains"", ""Value"" : ""val22"" }]
    }
  ]
}");
fsql.Select<Region>().WhereDynamicFilter(dyfilter).ToList();

//SELECT a.""Code"", a.""Name"", a.""ParentCode"", a__Parent.""Code"" as4, a__Parent.""Name"" as5, a__Parent.""ParentCode"" as6 
//FROM ""Region"" a 
//LEFT JOIN ""Region"" a__Parent ON a__Parent.""Code"" = a.""ParentCode"" 
//WHERE (not((a.""Code"") LIKE '%val1%') AND not((a.""Name"") LIKE 'val2%') OR a__Parent.""Code"" = 'val11' AND (a__Parent.""Name"") LIKE '%val22%')

《高效理解 FreeSql WhereDynamicFilter，深入了解设计初衷》

动态排序 OrderByPropertyName

ISelect.OrderByPropertyName 方法实现动态排序，如下：

• 支持导航属性，比如 OrderByPropertyName("Parent.Code")
• 支持多表查询，比如 OrderByPropertyName("b.Code")

动态贪婪加载 IncludeByPropertyName

ISelect.IncludeByPropertyName 方法实现动态贪婪加载，对应 Include/IncludeMany。

fsql.Select<Region>()
    .IncludeByPropertyName("Parent.Parent.Parent") //ManyToOne/OneToOne
    .IncludeByPropertyName("Childs") //OneToMany/ManyToMany/PgArrayToMany

    .IncludeByPropertyName("Childs", then => then
        .IncludeByPropertyName("Parent.Parent")
        .IncludeByPropertyName("Parent.Childs")) //向下加载，可以向下 100 层
    .ToList();

List<TDto> 也支持贪婪加载，只支持 OneToMany：

var dtos = fsql.Select<Region>().ToList<Dto>();
//非实体类型，也可以级联加载，他们不需要配置导航属性关系

dtos.IncludeByPropertyName(
    orm: fsql, 
    property: "Childs", 
    where: "ParentId=Id", 
    take: 5, 
    select: "id,name",
    then => then.IncludeByPropertyName("Parent")
);

动态返回数据 ToDataTableByPropertyName