配置实体时获取表名 [英] Get the table name when configuring an entity

问题描述

EF Core:我需要将表的名称作为实体的名称，而不是 dbset，此外，我需要将 Id 设为 "tableName"+"Id".

EF Core: I need to get the name of the table as the name of the entity, not dbset, also, I need the Id to be "tableName"+"Id".

我有一个 DbSet国家 - 我需要将表名 Country 和 Id 列(继承自基本实体)设为 CountryId.

I have a DbSet<Country> Countries - I need table name Country and Id column (inherited from base entity) to be CountryId.

我从这个有效的代码开始:

I started with this code that works:

foreach (var entity in modelBuilder.Model.GetEntityTypes())
{
    var builderEntity = modelBuilder.Entity(entity.Name);

    // make table name to be entity name
    builderEntity.ToTable(entity.DisplayName());

    // make Id column name to be tableName+Id
    var idProperty = entity.FindProperty("Id");

    if (idProperty != null)
    {
        builderEntity.Property("Id")
            .HasColumnName(entity.GetTableName() + "Id");
    }
}

但现在我切换到个人配置.

but now I switch to individual configuration.

我有以下几点:

public class IdEntityConfiguration<TEntity> : BaseEntityConfiguration<TEntity>
    where TEntity : IdEntity
{
    public override void Configure(EntityTypeBuilder<TEntity> builder)
    {
        base.Configure(builder);
        
        // would be better to have the entity TableName, not the Entity name
        // if one day would not be the same...
        var tableName = typeof(TEntity).Name; 

        builder.Property(p => p.Id)
            .HasColumnName(tableName + "Id");
    }
}

问题:如何获取上面代码中配置的TableName(不是实体名称)?

Question: how to get the configured TableName (not the entity name) in the code above?

基类如下:

public class BaseEntityConfiguration<TEntity> : IEntityTypeConfiguration<TEntity>
    where TEntity : BaseEntity
{
    public virtual void Configure(EntityTypeBuilder<TEntity> builder)
    {
        var entityName = typeof(TEntity).Name; // here is OK, generic class name
        builder.ToTable(entityName);
    }
}

推荐答案

如何获取上面代码中配置的TableName(不是实体名)?

How to get the configured TableName (not the Entity name) in the code above?

var tn = builder.Metadata.GetTableName();

RelationalEntityTypeExtensions.GetTableName(IEntityType) 方法定义

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