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First try with linq2db

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Holger Börchers 2020-09-28 00:22:12 +02:00
parent 5c86727baa
commit 552e9cc6df
4 changed files with 289 additions and 7 deletions
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205
UserService.DatabaseLayer/DataModels/UserDatabase.generated.cs Normal file
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//---------------------------------------------------------------------------------------------------
// <auto-generated>
// This code was generated by T4Model template for T4 (https://github.com/linq2db/linq2db).
// Changes to this file may cause incorrect behavior and will be lost if the code is regenerated.
// </auto-generated>
//---------------------------------------------------------------------------------------------------
#pragma warning disable 1591
using System;
using System.Collections.Generic;
using System.Linq;
using LinqToDB;
using LinqToDB.Mapping;
namespace DataModels
{
/// <summary>
/// Database : UserDatabase
/// Data Source : srvbo
/// Server Version : 5.5.5-10.3.22-MariaDB-1ubuntu1
/// </summary>
public partial class UserDatabaseDB : LinqToDB.Data.DataConnection
{
public ITable<Member> Members { get { return this.GetTable<Member>(); } }
public ITable<MembersMember> MembersMembers { get { return this.GetTable<MembersMember>(); } }
public ITable<Node> Nodes { get { return this.GetTable<Node>(); } }
public ITable<OrganizationUnit> OrganizationUnits { get { return this.GetTable<OrganizationUnit>(); } }
public ITable<SecurityGroup> SecurityGroups { get { return this.GetTable<SecurityGroup>(); } }
public ITable<User> Users { get { return this.GetTable<User>(); } }
public UserDatabaseDB()
{
InitDataContext();
InitMappingSchema();
}
public UserDatabaseDB(string configuration)
: base(configuration)
{
InitDataContext();
InitMappingSchema();
}
partial void InitDataContext ();
partial void InitMappingSchema();
}
[Table("Members")]
public partial class Member
{
[Column, NotNull] public int Id { get; set; } // int(11)
#region Associations
/// <summary>
/// MembersMember_ibfk_2_BackReference
/// </summary>
[Association(ThisKey="Id", OtherKey="AttachedMemberId", CanBeNull=true, Relationship=Relationship.OneToMany, IsBackReference=true)]
public IEnumerable<MembersMember> MembersMemberIbfk2BackReferences { get; set; }
/// <summary>
/// MembersMember_ibfk_1_BackReference
/// </summary>
[Association(ThisKey="Id", OtherKey="MemberId", CanBeNull=true, Relationship=Relationship.OneToMany, IsBackReference=true)]
public IEnumerable<MembersMember> MembersMemberibfks { get; set; }
/// <summary>
/// Members_ibfk_1
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=false, Relationship=Relationship.ManyToOne, KeyName="Members_ibfk_1", BackReferenceName="Membersibfks")]
public Node Node { get; set; }
/// <summary>
/// SecurityGroups_ibfk_1_BackReference
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=true, Relationship=Relationship.OneToMany, IsBackReference=true)]
public IEnumerable<SecurityGroup> SecurityGroupsibfks { get; set; }
/// <summary>
/// Users_ibfk_1_BackReference
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=true, Relationship=Relationship.OneToMany, IsBackReference=true)]
public IEnumerable<User> Usersibfks { get; set; }
#endregion
}
[Table("MembersMember")]
public partial class MembersMember
{
[PrimaryKey(1), NotNull] public int MemberId { get; set; } // int(11)
[PrimaryKey(2), NotNull] public int AttachedMemberId { get; set; } // int(11)
#region Associations
/// <summary>
/// MembersMember_ibfk_2
/// </summary>
[Association(ThisKey="AttachedMemberId", OtherKey="Id", CanBeNull=false, Relationship=Relationship.ManyToOne, KeyName="MembersMember_ibfk_2", BackReferenceName="MembersMemberIbfk2BackReferences")]
public Member AttachedMember { get; set; }
/// <summary>
/// MembersMember_ibfk_1
/// </summary>
[Association(ThisKey="MemberId", OtherKey="Id", CanBeNull=false, Relationship=Relationship.ManyToOne, KeyName="MembersMember_ibfk_1", BackReferenceName="MembersMemberibfks")]
public Member Member { get; set; }
#endregion
}
[Table("Nodes")]
public partial class Node
{
[PrimaryKey, Identity] public int Id { get; set; } // int(11)
#region Associations
/// <summary>
/// Members_ibfk_1_BackReference
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=true, Relationship=Relationship.OneToMany, IsBackReference=true)]
public IEnumerable<Member> Membersibfks { get; set; }
/// <summary>
/// OrganizationUnits_ibfk_1_BackReference
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=true, Relationship=Relationship.OneToMany, IsBackReference=true)]
public IEnumerable<OrganizationUnit> OrganizationUnitsibfks { get; set; }
#endregion
}
[Table("OrganizationUnits")]
public partial class OrganizationUnit
{
[Column, NotNull ] public int Id { get; set; } // int(11)
[Column, Nullable] public int? ManagerId { get; set; } // int(11)
[Column, Nullable] public int? ParentId { get; set; } // int(11)
#region Associations
/// <summary>
/// OrganizationUnits_ibfk_1
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=false, Relationship=Relationship.ManyToOne, KeyName="OrganizationUnits_ibfk_1", BackReferenceName="OrganizationUnitsibfks")]
public Node Node { get; set; }
#endregion
}
[Table("SecurityGroups")]
public partial class SecurityGroup
{
[Column, NotNull] public int Id { get; set; } // int(11)
#region Associations
/// <summary>
/// SecurityGroups_ibfk_1
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=false, Relationship=Relationship.ManyToOne, KeyName="SecurityGroups_ibfk_1", BackReferenceName="SecurityGroupsibfks")]
public Member Member { get; set; }
#endregion
}
[Table("Users")]
public partial class User
{
[Column, NotNull ] public int Id { get; set; } // int(11)
[Column, Nullable] public string FirstName { get; set; } // text
[Column, Nullable] public string LastName { get; set; } // text
[Column, NotNull ] public bool IsActive { get; set; } // bit(1)
#region Associations
/// <summary>
/// Users_ibfk_1
/// </summary>
[Association(ThisKey="Id", OtherKey="Id", CanBeNull=false, Relationship=Relationship.ManyToOne, KeyName="Users_ibfk_1", BackReferenceName="Usersibfks")]
public Member Member { get; set; }
#endregion
}
public static partial class TableExtensions
{
public static MembersMember Find(this ITable<MembersMember> table, int MemberId, int AttachedMemberId)
{
return table.FirstOrDefault(t =>
t.MemberId == MemberId &&
t.AttachedMemberId == AttachedMemberId);
}
public static Node Find(this ITable<Node> table, int Id)
{
return table.FirstOrDefault(t =>
t.Id == Id);
}
}
}
#pragma warning restore 1591

54
UserService.DatabaseLayer/DataModels/UserDatabase.tt Normal file
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<#@ template language="C#" debug="True" hostSpecific="True" #>
<#@ output extension=".generated.cs" #>
<#@ include file="$(LinqToDBT4MySqlTemplatesDirectory)LinqToDB.MySql.Tools.ttinclude" #>
<#@ include file="$(LinqToDBT4MySqlTemplatesDirectory)PluralizationService.ttinclude" #>
<# //@ include file="$(ProjectDir)LinqToDB.Templates\LinqToDB.MySql.Tools.ttinclude" #>
<# //@ include file="$(ProjectDir)LinqToDB.Templates\PluralizationService.ttinclude" #>
<#
/*
1. Create new *.tt file (e.g. MyDatabase.tt) in a folder where you would like to generate your data model
and copy content from this file to it. For example:
MyProject
DataModels
MyDatabase.tt
2. Modify the connection settings below to connect to your database.
3. Add connection string to the web/app.config file:
<connectionStrings>
<add name="MyDatabase" connectionString="Server=MyServer;Port=3306;Database=MyDatabase;Uid=root;Pwd=TestPassword;charset=utf8;" providerName="MySql.Data.MySqlClient" />
</connectionStrings>
4. To access your database use the following code:
using (var db = new MyDatabaseDB())
{
var q =
from c in db.Customers
select c;
foreach (var c in q)
Console.WriteLine(c.ContactName);
}
5. See more at https://linq2db.github.io/articles/T4.html
IMPORTANT: if running .tt file gives you error like this:
"error : Failed to resolve include text for file: C:\...\$(LinqToDBT4<SOME_DB>TemplatesDirectory)LinqToDB.<DB_NAME>.Tools.ttinclude"
check tt file properties.
Custom tool must be set to TextTemplatingFileGenerator, not TextTemplatingFilePreprocessor or any other value.
*/
NamespaceName = "DataModels";
// to configure GetSchemaOptions properties, add them here, before load metadata call
LoadMySqlMetadata("srvbo", "UserDatabase", "UserDbAdmin", "12345678");
// LoadMySqlMetadata(string connectionString);
// to adjust loaded database model before generation, add your code here, after load metadata, but before GenerateModel() call
GenerateModel();
#>

35
UserService.DatabaseLayer/UserService.DatabaseLayer.csproj
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@ -1,4 +1,4 @@
<Project Sdk="Microsoft.NET.Sdk">
<Project Sdk="Microsoft.NET.Sdk">
<PropertyGroup>
<TargetFramework>netcoreapp3.1</TargetFramework>
@ -7,19 +7,42 @@
</PropertyGroup>
<ItemGroup>
<None Include="DataModels\UserDatabase.generated.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>UserDatabase.tt</DependentUpon>
</None>
</ItemGroup>
<ItemGroup>
<PackageReference Include="linq2db.MySql" Version="3.1.3" />
<PackageReference Include="Microsoft.CodeAnalysis.FxCopAnalyzers" Version="3.3.0">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="3.1.8">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
</PackageReference>
<PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="3.1.8" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\UserService.Infrastructure\UserService.Infrastructure.csproj" />
</ItemGroup>
<ItemGroup>
<Service Include="{508349b6-6b84-4df5-91f0-309beebad82d}" />
</ItemGroup>
<ItemGroup>
<Compile Update="DataModels\UserDatabase.generated.cs">
<DesignTime>True</DesignTime>
<AutoGen>True</AutoGen>
<DependentUpon>UserDatabase.tt</DependentUpon>
</Compile>
</ItemGroup>
<ItemGroup>
<None Update="DataModels\UserDatabase.tt">
<Generator>TextTemplatingFileGenerator</Generator>
<LastGenOutput>UserDatabase.generated.cs</LastGenOutput>
</None>
</ItemGroup>
</Project>

2
UserService.Infrastructure/DataModels/Node.cs
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@ -24,7 +24,7 @@ namespace UserService.Infrastructure.DataModels
public int CompareTo(Node? other)
{
if (ReferenceEquals(this, other)) return 0;
if (ReferenceEquals(null, other)) return 1;
if (other is null) return 1;
var commonNameComparison = string.Compare(CommonName, other.CommonName, StringComparison.Ordinal);
if (commonNameComparison != 0) return commonNameComparison;
return Id.CompareTo(other.Id);