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\u4e2d\u4f7f\u7528\u6807\u91cf\u51fd\u6570\u7684\u65b9\u6cd5\u3002\u5982\u679c\u50cf\u4f7f\u7528\u8fd9\u6837\u7684\u65b9\u5f0f\uff0c\u9700\u8981\u6ee1\u8db3\u4ee5\u4e0b\u4e24\u4e2a\u6761\u4ef6\uff1a"]}),"\n",(0,s.jsxs)(n.ul,{children:["\n",(0,s.jsxs)(n.li,{children:["\u6807\u91cf\u51fd\u6570\u5fc5\u987b\u5b9a\u4e49\u5728",(0,s.jsx)(n.strong,{children:"\u516c\u5f00\u9759\u6001\u7c7b"}),"\u4e2d\uff0c\u4e14\u81ea\u5df1\u4e5f\u662f",(0,s.jsx)(n.strong,{children:"\u516c\u5f00\u9759\u6001\u65b9\u6cd5"})]}),"\n",(0,s.jsxs)(n.li,{children:["\u8be5",(0,s.jsx)(n.strong,{children:"\u516c\u5f00\u9759\u6001\u65b9\u6cd5"}),"\u5fc5\u987b\u8d34\u6709 ",(0,s.jsx)(n.code,{children:"[QueryableFunction]"})," \u7279\u6027"]}),"\n"]}),"\n",(0,s.jsx)(n.p,{children:"\u793a\u4f8b\u5982\u4e0b\uff1a"}),"\n",(0,s.jsx)(n.h3,{id:"91541-\u521b\u5efa\u6807\u91cf\u51fd\u6570",children:"9.15.4.1 \u521b\u5efa\u6807\u91cf\u51fd\u6570"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-sql",metastring:"showLineNumbers",children:"CREATE FUNCTION FN_GetId\r\n(\r\n    @id INT\r\n)\r\nRETURNS INT\r\nAS\r\nBEGIN\r\n    RETURN @id + 1;\r\nEND;\n"})}),"\n",(0,s.jsx)(n.h3,{id:"91542-\u521b\u5efa\u9759\u6001\u7c7b\u548c\u9759\u6001\u65b9\u6cd5",children:"9.15.4.2 \u521b\u5efa\u9759\u6001\u7c7b\u548c\u9759\u6001\u65b9\u6cd5"}),"\n",(0,s.jsxs)(n.p,{children:["\u521b\u5efa\u9759\u6001\u7c7b\uff0c\u5982 ",(0,s.jsx)(n.code,{children:"QueryFunctions"}),"\uff0c\u5c06\u8be5 ",(0,s.jsx)(n.code,{children:"\u6807\u91cf\u51fd\u6570"})," \u653e\u5728\u9759\u6001\u7c7b\u4e2d\uff1a"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-cs",metastring:"showLineNumbers  {1, 7, 10-11}",children:'using Furion.DatabaseAccessor;\r\nusing System;\r\n\r\nnamespace Furion.Application\r\n{\r\n    // \u5fc5\u987b\u662f\u516c\u5f00\u9759\u6001\u7684\r\n    public static class QueryFunctions\r\n    {\r\n        // \u5fc5\u987b\u662f\u9759\u6001\u65b9\u6cd5\r\n        [QueryableFunction("FN_GetId", "dbo")]  // \u914d\u7f6e\u6807\u91cf\u51fd\u6570\r\n        public static int GetId(int id) => throw new NotSupportedException();\r\n    }\r\n}\n'})}),"\n",(0,s.jsxs)(n.h3,{id:"91543-\u5728-linq-\u4e2d\u4f7f\u7528",children:["9.15.4.3 \u5728 ",(0,s.jsx)(n.code,{children:"Linq"})," \u4e2d\u4f7f\u7528"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-cs",metastring:"showLineNumbers",children:"_personRepository.Where(u => u.Id > QueryFunctions.GetId(1)).ToList();\n"})}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-sql",metastring:"showLineNumbers",children:"SELECT [p].[Id], [p].[Address], [p].[Age], [p].[CreatedTime], [p].[IsDeleted], [p].[Name], [p].[UpdatedTime]\r\nFROM [Person] AS [p]\r\nWHERE [p].[Id] > [dbo].[FN_GetId](1)    // \ud83d\udca5 \u6ce8\u610f\u8fd9\u91cc\n"})}),"\n",(0,s.jsx)("img",{src:(0,l.Z)("img/fn1.png")}),"\n",(0,s.jsxs)(n.h2,{id:"9155-\u5728-linq-\u4e2d\u4f7f\u7528-\u8868\u503c\u51fd\u6570",children:["9.15.5 \u5728 ",(0,s.jsx)(n.code,{children:"Linq"})," \u4e2d\u4f7f\u7528 ",(0,s.jsx)(n.code,{children:"\u8868\u503c\u51fd\u6570"})]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"EF Core 5.0"})," \u7248\u672c\u652f\u6301\u5728 ",(0,s.jsx)(n.code,{children:"Linq"})," \u4e2d\u64cd\u4f5c ",(0,s.jsx)(n.code,{children:"\u8868\u503c\u51fd\u6570"}),"\uff0c\u64cd\u4f5c\u6709\u70b9\u7c7b\u4f3c ",(0,s.jsx)(n.code,{children:"\u89c6\u56fe\u64cd\u4f5c"})]}),"\n",(0,s.jsx)(n.p,{children:"\u793a\u4f8b\u5982\u4e0b\uff1a"}),"\n",(0,s.jsx)(n.h3,{id:"91551-\u521b\u5efa\u8868\u503c\u51fd\u6570",children:"9.15.5.1 \u521b\u5efa\u8868\u503c\u51fd\u6570"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-sql",metastring:"showLineNumbers",children:"CREATE FUNCTION dbo.GetPersons\r\n(\r\n    @id INT\r\n)\r\nRETURNS TABLE\r\nAS\r\nRETURN\r\n(\r\n    SELECT Id,\r\n           Name,\r\n           Age,\r\n           Address\r\n    FROM dbo.Person\r\n    WHERE Id > @id\r\n);\n"})}),"\n",(0,s.jsx)(n.h3,{id:"91552-\u521b\u5efa\u8868\u503c\u51fd\u6570\u6a21\u578b",children:"9.15.5.2 \u521b\u5efa\u8868\u503c\u51fd\u6570\u6a21\u578b"}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-cs",metastring:"showLineNumbers",children:"namespace Furion.Core\r\n{\r\n    public class F_Person\r\n    {\r\n        /// <summary>\r\n        /// \u4e3b\u952eId\r\n        /// </summary>\r\n        public int Id { get; set; }\r\n\r\n        /// <summary>\r\n        /// \u59d3\u540d\r\n        /// </summary>\r\n        public string Name { get; set; }\r\n\r\n        /// <summary>\r\n        /// \u5e74\u9f84\r\n        /// </summary>\r\n        public int Age { get; set; }\r\n\r\n        /// <summary>\r\n        /// \u4f4f\u5740\r\n        /// </summary>\r\n        public string Address { get; set; }\r\n    }\r\n}\n"})}),"\n",(0,s.jsx)(n.h3,{id:"91553-\u8868\u503c\u51fd\u6570\u914d\u7f6e",children:"9.15.5.3 \u8868\u503c\u51fd\u6570\u914d\u7f6e"}),"\n",(0,s.jsxs)(n.p,{children:["\u5728 ",(0,s.jsx)(n.code,{children:"DbContext"})," \u7c7b\u4e2d\u5b9a\u4e49\u65b9\u6cd5\uff1a"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-cs",metastring:"showLineNumbers  {3,10,20-21}",children:'using Furion.DatabaseAccessor;\r\nusing Microsoft.EntityFrameworkCore;\r\nusing System.Linq;\r\n\r\nnamespace Furion.EntityFramework.Core\r\n{\r\n    [AppDbContext("Sqlite3ConnectionString")]\r\n    public class FurionDbContext : AppDbContext<FurionDbContext>\r\n    {\r\n        public IQueryable<F_Person> GetPersons(int id) => FromExpression(() => GetPersons(id));\r\n\r\n        public FurionDbContext(DbContextOptions<FurionDbContext> options) : base(options)\r\n        {\r\n        }\r\n\r\n        protected override void OnModelCreating(ModelBuilder modelBuilder)\r\n        {\r\n            base.OnModelCreating(modelBuilder);\r\n\r\n            modelBuilder.Entity(typeof(F_Person)).HasNoKey();\r\n            modelBuilder.HasDbFunction(() => GetPersons(default));\r\n        }\r\n    }\r\n}\n'})}),"\n",(0,s.jsxs)(n.h3,{id:"91554-\u5728-linq-\u4e2d\u4f7f\u7528",children:["9.15.5.4 \u5728 ",(0,s.jsx)(n.code,{children:"Linq"})," \u4e2d\u4f7f\u7528"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-cs",metastring:"showLineNumbers",children:'IQueryable<F_Person> query = _repository.DynamicDbContext.GetPersons(1);\r\nvar result = query.Where(u => u.Name.Equals("Furion")).ToList();\n'})}),"\n",(0,s.jsxs)(n.p,{children:["\u6700\u7ec8\u751f\u6210 ",(0,s.jsx)(n.code,{children:"Sql"})]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-sql",metastring:"showLineNumbers",children:"SELECT [g].Id, [g].Name, [g].Age, [g].Address\r\nFROM dbo.GetPersons(1) AS [g]\r\nWHERE [g].Name == N'Furion';\n"})}),"\n",(0,s.jsxs)(n.h2,{id:"9156-\u5728-ef-core-\u5185\u7f6e\u51fd\u6570",children:["9.15.6 \u5728 ",(0,s.jsx)(n.code,{children:"EF Core"})," \u5185\u7f6e\u51fd\u6570"]}),"\n",(0,s.jsxs)(n.p,{children:[(0,s.jsx)(n.code,{children:"EF Core"})," \u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86\u5f88\u591a\u5e38\u7528\u7684\u5185\u7f6e\u51fd\u6570\uff0c\u53ef\u4ee5\u5728 ",(0,s.jsx)(n.code,{children:"Lambda"})," \u6761\u4ef6\u4e2d\u4f7f\u7528\uff0c\u4e3b\u8981\u662f\u901a\u8fc7 EF.Functions \u8c03\u7528\uff0c\u5982\uff1a"]}),"\n",(0,s.jsx)(n.pre,{children:(0,s.jsx)(n.code,{className:"language-cs",metastring:"showLineNumbers",children:"_repository.Where(u => EF.Functions.DateDiffHour(u.CreatedDt, DateTime.Now) > 8).FirstOrDefault();\n"})}),"\n",(0,s.jsx)(n.p,{children:"\u8fd9\u4e2a\u8bed\u53e5\u4f7f\u7528\u4e86 EF.Functions.DateDiffHour \u6700\u7ec8\u751f\u6210\u7684 Sql 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",(0,s.jsx)(n.a,{href:"https://gitee.com/dotnetchina/Furion/issues/new?issue",children:"Issue"}),"\u3002"]})})]})}function h(e={}){const{wrapper:n}={...(0,i.a)(),...e.components};return n?(0,s.jsx)(n,{...e,children:(0,s.jsx)(u,{...e})}):u(e)}},1151:(e,n,r)=>{r.d(n,{Z:()=>d,a:()=>t});var s=r(7294);const i={},l=s.createContext(i);function t(e){const n=s.useContext(l);return s.useMemo((function(){return"function"==typeof e?e(n):{...n,...e}}),[n,e])}function d(e){let n;return n=e.disableParentContext?"function"==typeof e.components?e.components(i):e.components||i:t(e.components),s.createElement(l.Provider,{value:n},e.children)}}}]);