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CodyZhang
2020-05-29 18:26:08 +08:00
commit 383af1f98f
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13
ContosoUniversity.DAL/App.config Normal file
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<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>

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ContosoUniversity.DAL/ContosoUniversity.DAL.csproj Normal file
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<?xml version="1.0" encoding="utf-8"?>
<Project ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProjectGuid>{4B2BE745-7993-451E-BA68-7B6C1D536802}</ProjectGuid>
<OutputType>Library</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>ContosoUniversity.DAL</RootNamespace>
<AssemblyName>ContosoUniversity.DAL</AssemblyName>
<TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
<FileAlignment>512</FileAlignment>
<Deterministic>true</Deterministic>
<TargetFrameworkProfile />
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
<HintPath>..\packages\EntityFramework.6.1.1\lib\net45\EntityFramework.dll</HintPath>
</Reference>
<Reference Include="EntityFramework.SqlServer, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
<HintPath>..\packages\EntityFramework.6.1.1\lib\net45\EntityFramework.SqlServer.dll</HintPath>
</Reference>
<Reference Include="System" />
<Reference Include="System.ComponentModel.DataAnnotations" />
<Reference Include="System.Core" />
<Reference Include="System.Xml.Linq" />
<Reference Include="System.Data.DataSetExtensions" />
<Reference Include="Microsoft.CSharp" />
<Reference Include="System.Data" />
<Reference Include="System.Net.Http" />
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="Migrations\Configuration.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<Compile Include="SchoolConfiguration.cs" />
<Compile Include="SchoolContext.cs" />
<Compile Include="SchoolInitializer.cs" />
<Compile Include="SchoolInterceptorLogging.cs" />
<Compile Include="SchoolInterceptorTransientErrors.cs" />
</ItemGroup>
<ItemGroup>
<None Include="App.config" />
<None Include="packages.config" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\ContosoUniversity.Logging\ContosoUniversity.Logging.csproj">
<Project>{ae7e2487-4f2f-49f8-b9c2-96b11bb8ea76}</Project>
<Name>ContosoUniversity.Logging</Name>
</ProjectReference>
<ProjectReference Include="..\ContosoUniversity.Models\ContosoUniversity.Models.csproj">
<Project>{2627d24e-56a3-427f-be01-a9f7aa084b1f}</Project>
<Name>ContosoUniversity.Models</Name>
</ProjectReference>
</ItemGroup>
<Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
</Project>

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ContosoUniversity.DAL/Migrations/Configuration.cs Normal file
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using System.Collections.Generic;
using ContosoUniversity.Models;
namespace ContosoUniversity.DAL.Migrations
{
using System;
using System.Data.Entity;
using System.Data.Entity.Migrations;
using System.Linq;
internal sealed class Configuration : DbMigrationsConfiguration<ContosoUniversity.DAL.SchoolContext>
{
public Configuration()
{
AutomaticMigrationsEnabled = false;
}
protected override void Seed(ContosoUniversity.DAL.SchoolContext context)
{
// This method will be called after migrating to the latest version.
// You can use the DbSet<T>.AddOrUpdate() helper extension method
// to avoid creating duplicate seed data. E.g.
//
// context.People.AddOrUpdate(
// p => p.FullName,
// new Person { FullName = "Andrew Peters" },
// new Person { FullName = "Brice Lambson" },
// new Person { FullName = "Rowan Miller" }
// );
//
var instructors = new List<Instructor>
{
new Instructor
{
FirstMidName = "Kim", LastName = "Abercrombie", HireDate = DateTime.Parse("1995-03-11"),
OfficeAssignment = new OfficeAssignment {Location = "Smith 17"}
},
new Instructor
{
FirstMidName = "Fadi", LastName = "Fakhouri", HireDate = DateTime.Parse("2002-07-06"),
OfficeAssignment = new OfficeAssignment {Location = "Gowan 27"}
},
new Instructor
{
FirstMidName = "Roger", LastName = "Harui", HireDate = DateTime.Parse("1998-07-01"),
OfficeAssignment = new OfficeAssignment {Location = "Thompson 304"}
},
new Instructor {FirstMidName = "Candace", LastName = "Kapoor", HireDate = DateTime.Parse("2001-01-15")},
new Instructor {FirstMidName = "Roger", LastName = "Zheng", HireDate = DateTime.Parse("2004-02-12")}
};
instructors.ForEach(s => context.Instructors.AddOrUpdate(i => i.LastName, s));
context.SaveChanges();
var departments = new List<Department>
{
new Department
{Name = "English", Budget = 350000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 1},
new Department
{Name = "Mathematics", Budget = 100000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 2},
new Department
{Name = "Engineering", Budget = 350000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 3},
new Department
{Name = "Economics", Budget = 100000, StartDate = DateTime.Parse("2007-09-01"), DepartmentID = 4}
};
departments.ForEach(s=>context.Departments.AddOrUpdate(d=>d.Name, s));
context.SaveChanges();
var courses = new List<Course>
{
new Course {CourseID = 1050, Title = "Chemistry", Credits = 3, DepartmentID = 3},
new Course {CourseID = 4022, Title = "Microeconomics", Credits = 3, DepartmentID = 4},
new Course {CourseID = 4041, Title = "Macroeconomics", Credits = 3, DepartmentID = 4},
new Course {CourseID = 1045, Title = "Calculus", Credits = 4, DepartmentID = 2},
new Course {CourseID = 3141, Title = "Trigonometry", Credits = 4, DepartmentID = 2},
new Course {CourseID = 2021, Title = "Composition", Credits = 3, DepartmentID = 1},
new Course {CourseID = 2042, Title = "Literature", Credits = 4, DepartmentID = 1}
};
courses.ForEach(s=>context.Courses.AddOrUpdate(s));
context.SaveChanges();
courses[0].Instructors.Add(instructors[0]);
courses[0].Instructors.Add(instructors[1]);
courses[1].Instructors.Add(instructors[2]);
courses[2].Instructors.Add(instructors[2]);
courses[3].Instructors.Add(instructors[3]);
courses[4].Instructors.Add(instructors[3]);
courses[5].Instructors.Add(instructors[3]);
courses[6].Instructors.Add(instructors[3]);
context.SaveChanges();
}
}
}

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ContosoUniversity.DAL/Properties/AssemblyInfo.cs Normal file
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using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
// 組件的一般資訊是由下列的屬性集控制。
// 變更這些屬性的值即可修改組件的相關
// 資訊。
[assembly: AssemblyTitle("ContosoUniversity.DAL")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("ContosoUniversity.DAL")]
[assembly: AssemblyCopyright("Copyright © 2020")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]
// 將 ComVisible 設為 false 可對 COM 元件隱藏
// 組件中的類型。若必須從 COM 存取此組件中的類型，
// 的類型，請在該類型上將 ComVisible 屬性設定為 true。
[assembly: ComVisible(false)]
// 下列 GUID 為專案公開 (Expose) 至 COM 時所要使用的 typelib ID
[assembly: Guid("4b2be745-7993-451e-ba68-7b6c1d536802")]
// 組件的版本資訊由下列四個值所組成:
//
// 主要版本
// 次要版本
// 組建編號
// 修訂編號
//
// 您可以指定所有的值，或將組建編號或修訂編號設為預設值
//方法是使用 '*'，如下所示:
// [assembly: AssemblyVersion("1.0.*")]
[assembly: AssemblyVersion("1.0.0.0")]
[assembly: AssemblyFileVersion("1.0.0.0")]

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ContosoUniversity.DAL/SchoolConfiguration.cs Normal file
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using System.Data.Entity;
using System.Data.Entity.SqlServer;
namespace ContosoUniversity.DAL
{
public class SchoolConfiguration : DbConfiguration
{
public SchoolConfiguration()
{
SetExecutionStrategy("System.Data.SqlClient", () => new SqlAzureExecutionStrategy());
}
}
}

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ContosoUniversity.DAL/SchoolContext.cs Normal file
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using ContosoUniversity.Models;
using System.Data.Entity;
using System.Data.Entity.ModelConfiguration.Conventions;
namespace ContosoUniversity.DAL
{
public class SchoolContext : DbContext
{
public DbSet<Course> Courses { get; set; }
public DbSet<Department> Departments { get; set; }
public DbSet<Enrollment> Enrollments { get; set; }
public DbSet<Instructor> Instructors { get; set; }
public DbSet<Student> Students { get; set; }
public DbSet<OfficeAssignment> OfficeAssignments { get; set; }
public DbSet<Person> People { get; set; }
protected override void OnModelCreating(DbModelBuilder modelBuilder)
{
modelBuilder.Conventions.Remove<PluralizingTableNameConvention>();
modelBuilder.Entity<Course>()
.HasMany(c => c.Instructors).WithMany(i => i.Courses)
.Map(t => t.MapLeftKey("CourseID")
.MapRightKey("InstructorID")
.ToTable("CourseInstructor"));
modelBuilder.Entity<Department>().MapToStoredProcedures();
}
}
}

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ContosoUniversity.DAL/SchoolInitializer.cs Normal file
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Data.Entity;
using ContosoUniversity.Models;
namespace ContosoUniversity.DAL
{
public class SchoolInitializer : System.Data.Entity.DropCreateDatabaseIfModelChanges<SchoolContext>
{
protected override void Seed(SchoolContext context)
{
var students = new List<Student>
{
new Student{FirstMidName="Carson",LastName="Alexander",EnrollmentDate=DateTime.Parse("2005-09-01")},
new Student{FirstMidName="Meredith",LastName="Alonso",EnrollmentDate=DateTime.Parse("2002-09-01")},
new Student{FirstMidName="Arturo",LastName="Anand",EnrollmentDate=DateTime.Parse("2003-09-01")},
new Student{FirstMidName="Gytis",LastName="Barzdukas",EnrollmentDate=DateTime.Parse("2002-09-01")},
new Student{FirstMidName="Yan",LastName="Li",EnrollmentDate=DateTime.Parse("2002-09-01")},
new Student{FirstMidName="Peggy",LastName="Justice",EnrollmentDate=DateTime.Parse("2001-09-01")},
new Student{FirstMidName="Laura",LastName="Norman",EnrollmentDate=DateTime.Parse("2003-09-01")},
new Student{FirstMidName="Nino",LastName="Olivetto",EnrollmentDate=DateTime.Parse("2005-09-01")}
};
students.ForEach(s => context.Students.Add(s));
context.SaveChanges();
var courses = new List<Course>
{
new Course{CourseID=1050,Title="Chemistry",Credits=3,},
new Course{CourseID=4022,Title="Microeconomics",Credits=3,},
new Course{CourseID=4041,Title="Macroeconomics",Credits=3,},
new Course{CourseID=1045,Title="Calculus",Credits=4,},
new Course{CourseID=3141,Title="Trigonometry",Credits=4,},
new Course{CourseID=2021,Title="Composition",Credits=3,},
new Course{CourseID=2042,Title="Literature",Credits=4,}
};
courses.ForEach(s => context.Courses.Add(s));
context.SaveChanges();
var enrollments = new List<Enrollment>
{
new Enrollment{StudentID=1,CourseID=1050,Grade=Grade.A},
new Enrollment{StudentID=1,CourseID=4022,Grade=Grade.C},
new Enrollment{StudentID=1,CourseID=4041,Grade=Grade.B},
new Enrollment{StudentID=2,CourseID=1045,Grade=Grade.B},
new Enrollment{StudentID=2,CourseID=3141,Grade=Grade.F},
new Enrollment{StudentID=2,CourseID=2021,Grade=Grade.F},
new Enrollment{StudentID=3,CourseID=1050},
new Enrollment{StudentID=4,CourseID=1050,},
new Enrollment{StudentID=4,CourseID=4022,Grade=Grade.F},
new Enrollment{StudentID=5,CourseID=4041,Grade=Grade.C},
new Enrollment{StudentID=6,CourseID=1045},
new Enrollment{StudentID=7,CourseID=3141,Grade=Grade.A},
};
enrollments.ForEach(s => context.Enrollments.Add(s));
context.SaveChanges();
}
}
}

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ContosoUniversity.DAL/SchoolInterceptorLogging.cs Normal file
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using System;
using System.Data.Common;
using System.Data.Entity;
using System.Data.Entity.Infrastructure.Interception;
using System.Data.Entity.SqlServer;
using System.Data.SqlClient;
using System.Diagnostics;
using System.Reflection;
using System.Linq;
using ContosoUniversity.Logging;
namespace ContosoUniversity.DAL
{
public class SchoolInterceptorLogging : DbCommandInterceptor
{
private ILogger _logger = new Logger();
private readonly Stopwatch _stopwatch = new Stopwatch();
public override void ScalarExecuting(DbCommand command, DbCommandInterceptionContext<object> interceptionContext)
{
base.ScalarExecuting(command, interceptionContext);
_stopwatch.Restart();
}
public override void ScalarExecuted(DbCommand command, DbCommandInterceptionContext<object> interceptionContext)
{
_stopwatch.Stop();
if (interceptionContext.Exception != null)
{
_logger.Error(interceptionContext.Exception, "Error executing command: {0}", command.CommandText);
}
else
{
_logger.TraceApi("SQL Database", "SchoolInterceptor.ScalarExecuted", _stopwatch.Elapsed, "Command: {0}: ", command.CommandText);
}
base.ScalarExecuted(command, interceptionContext);
}
public override void NonQueryExecuting(DbCommand command, DbCommandInterceptionContext<int> interceptionContext)
{
base.NonQueryExecuting(command, interceptionContext);
_stopwatch.Restart();
}
public override void NonQueryExecuted(DbCommand command, DbCommandInterceptionContext<int> interceptionContext)
{
_stopwatch.Stop();
if (interceptionContext.Exception != null)
{
_logger.Error(interceptionContext.Exception, "Error executing command: {0}", command.CommandText);
}
else
{
_logger.TraceApi("SQL Database", "SchoolInterceptor.NonQueryExecuted", _stopwatch.Elapsed, "Command: {0}: ", command.CommandText);
}
base.NonQueryExecuted(command, interceptionContext);
}
public override void ReaderExecuting(DbCommand command, DbCommandInterceptionContext<DbDataReader> interceptionContext)
{
base.ReaderExecuting(command, interceptionContext);
_stopwatch.Restart();
}
public override void ReaderExecuted(DbCommand command, DbCommandInterceptionContext<DbDataReader> interceptionContext)
{
_stopwatch.Stop();
if (interceptionContext.Exception != null)
{
_logger.Error(interceptionContext.Exception, "Error executing command: {0}", command.CommandText);
}
else
{
_logger.TraceApi("SQL Database", "SchoolInterceptor.ReaderExecuted", _stopwatch.Elapsed, "Command: {0}: ", command.CommandText);
}
base.ReaderExecuted(command, interceptionContext);
}
}
}

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ContosoUniversity.DAL/SchoolInterceptorTransientErrors.cs Normal file
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using System;
using System.Data.Common;
using System.Data.Entity;
using System.Data.Entity.Infrastructure.Interception;
using System.Data.Entity.SqlServer;
using System.Data.SqlClient;
using System.Diagnostics;
using System.Reflection;
using System.Linq;
using ContosoUniversity.Logging;
namespace ContosoUniversity.DAL
{
public class SchoolInterceptorTransientErrors : DbCommandInterceptor
{
private int _counter = 0;
private ILogger _logger = new Logger();
public override void ReaderExecuting(DbCommand command, DbCommandInterceptionContext<DbDataReader> interceptionContext)
{
bool throwTransientErrors = false;
if (command.Parameters.Count > 0 && command.Parameters[0].Value.ToString() == "%Throw%")
{
throwTransientErrors = true;
command.Parameters[0].Value = "%an%";
command.Parameters[1].Value = "%an%";
}
if (throwTransientErrors && _counter < 4)
{
_logger.Information("Returning transient error for command: {0}", command.CommandText);
_counter++;
interceptionContext.Exception = CreateDummySqlException();
}
}
private SqlException CreateDummySqlException()
{
// The instance of SQL Server you attempted to connect to does not support encryption
var sqlErrorNumber = 20;
var sqlErrorCtor = typeof(SqlError).GetConstructors(BindingFlags.Instance | BindingFlags.NonPublic).Where(c => c.GetParameters().Count() == 7).Single();
var sqlError = sqlErrorCtor.Invoke(new object[] { sqlErrorNumber, (byte)0, (byte)0, "", "", "", 1 });
var errorCollection = Activator.CreateInstance(typeof(SqlErrorCollection), true);
var addMethod = typeof(SqlErrorCollection).GetMethod("Add", BindingFlags.Instance | BindingFlags.NonPublic);
addMethod.Invoke(errorCollection, new[] { sqlError });
var sqlExceptionCtor = typeof(SqlException).GetConstructors(BindingFlags.Instance | BindingFlags.NonPublic).Where(c => c.GetParameters().Count() == 4).Single();
var sqlException = (SqlException)sqlExceptionCtor.Invoke(new object[] { "Dummy", errorCollection, null, Guid.NewGuid() });
return sqlException;
}
}
}

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ContosoUniversity.DAL/packages.config Normal file
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<?xml version="1.0" encoding="utf-8"?>
<packages>
<package id="EntityFramework" version="6.1.1" targetFramework="net45" />
</packages>