外键约束失败使用sqlite和Entity Framework Core
我在桌子上有关系
[Table("organizations")]
public class Organizations
{
[Column("id")]
public int Id { get; set; }
[Column("parent_id")]
[ForeignKey("id")]
public int? ParentId { get; set; }
[Column("person_id")]
public int? PersonId { get; set; }
}
public DbSet<Organizations> Organizations { get; set; }
using (var db = new sqliteDbContext($"Filename={dbPath};"))
{
db.Database.ExecutesqlCommand("PRAGMA foreign_keys=OFF;");
db.Database.ExecutesqlCommand("PRAGMA ignore_check_constraints=true;");
db.Organizations.AddRange(organizationsResult.Rows);
}
解决方法:
如果连接关闭,PRAGMA会失效.您需要通过在之前和之后调用db.Database.OpenConnection()和CloseConnection()来增加连接的生命周期.
您还可以调用optionsBiulder.Usesqlite(connectionString,x => x.SuppressForeignKeyEnforcement())来防止EF在每个连接上自动转换外键执行.