public string Un_Register(int id)
{
if (repasitory.GetAll().Where(cb => cb.Id == id).ToList().Count != 0)
{
repasitory.Delete(id);
repasitory.Save();
return($"the category-book with id :{id} is deleted...");
}
return("Not Found any cattegory-book to un-register");
}
public string Delete(int id)
{
if (repasitory.GetAll().Where(c => c.Id == id).ToList().Count != 0)
{
try
{
var result = repasitory.Delete(id);
repasitory.Save();
return(result);
}
catch
{
return("There is a dependency for this category in Book-Category table ....");
}
}
return("Not found any category with this id for delete");
}
public string Delete(int id)
{
if (repasitory.GetAll().Where(a => a.Id == id).ToList().Count != 0)
{
try
{
var result = repasitory.Delete(id);
repasitory.Save();
return(result);
}
catch
{
return("There is a dependency for this author in Author-Book table ....");
}
}
return("Not found any author with this id for delete");
}