private static EfWorkType GetOrCreateWorkType(string id, string name,
BiblioDbContext context)
{
// force a valid type
if (id == null)
{
id = "-";
}
if (name == null)
{
name = id;
}
// get it
EfWorkType ef = context.WorkTypes.Find(id);
if (ef == null)
{
ef = new EfWorkType
{
Id = id,
Name = name
};
context.WorkTypes.Add(ef);
}
else if (name != null)
{
ef.Name = name;
}
return(ef);
}
/// <summary>
/// Gets the work's type corresponding to the specified work type entity.
/// </summary>
/// <param name="ef">The entity or null.</param>
/// <returns>The work type or null.</returns>
public static WorkType GetWorkType(EfWorkType ef)
{
if (ef == null)
{
return(null);
}
return(new WorkType
{
Id = ef.Id,
Name = ef.Name
});
}
/// <summary>
/// Deletes the type with the specified ID.
/// </summary>
/// <param name="id">The ID.</param>
public void DeleteWorkType(string id)
{
using (var db = GetContext())
{
EfWorkType ef = db.WorkTypes.Find(id);
if (ef != null)
{
db.WorkTypes.Remove(ef);
db.SaveChanges();
}
}
}
/// <summary>
/// Adds or updates the type with the specified ID and name.
/// </summary>
/// <param name="type">The type.</param>
/// <exception cref="ArgumentNullException">type</exception>
public void AddWorkType(WorkType type)
{
if (type == null)
{
throw new ArgumentNullException(nameof(type));
}
using (var db = GetContext())
{
EfWorkType ef = EfHelper.GetEfWorkType(type, db);
db.SaveChanges();
}
}
/// <summary>
/// Gets the type with the specified ID.
/// </summary>
/// <param name="id">The identifier.</param>
/// <returns>The type, or null if not found.</returns>
/// <exception cref="ArgumentNullException">id</exception>
public WorkType GetWorkType(string id)
{
if (id == null)
{
throw new ArgumentNullException(nameof(id));
}
using (var db = GetContext())
{
EfWorkType ef = db.WorkTypes.Find(id);
return(EfHelper.GetWorkType(ef));
}
}
/// <summary>
/// Gets the work entity corresponding to the specified type.
/// </summary>
/// <param name="type">The type or null.</param>
/// <param name="context">The context.</param>
/// <returns>The entity or null.</returns>
public static EfWorkType GetEfWorkType(WorkType type,
BiblioDbContext context)
{
if (type == null)
{
return(null);
}
EfWorkType ef = type.Id != null
? context.WorkTypes.Find(type.Id) : null;
if (ef == null)
{
ef = new EfWorkType
{
Id = type.Id
};
context.WorkTypes.Add(ef);
}
ef.Name = type.Name;
return(ef);
}
