Solutions for a simple multi tenant web application with entity framework

江枫思渺然 提交于 2019-12-03 00:42:26

You can do the reflection check and then manually create an expression tree that EF can understand.

For example:

int tenantId = 5;

var tenantIdInfo = typeof(TEntity).GetProperty("TenantId");

if (tenantIdInfo != null)
{
    var entity = Expression.Parameter(typeof(TEntity), "it");

    var predicate = (Expression<Func<TEntity, bool>>)Expression.Lambda(
        Expression.Equal(
            Expression.MakeMemberAccess(entity, tenantIdInfo),
            Expression.Constant(tenantId, typeof(int))),
        entity);

    query = query.Where(predicate);
}
易学教程内所有资源均来自网络或用户发布的内容,如有违反法律规定的内容欢迎反馈
该文章没有解决你所遇到的问题?点击提问,说说你的问题,让更多的人一起探讨吧!