private void Update(DatabaseObject obj)
{
if (obj.NewlyCreated)
{
throw new InvalidOperationException("Update of object newly created.");
}
if (!obj.Dirty)
{
return;
}
obj.Validate();
var updates = string.Join(", ",
obj.Fields.Where(f => f.Dirty)
.Select(f => f.ColumnName + " = " + f.VariableName));
using (var command = Command("UPDATE {0} SET {1} WHERE id = @id", TableName(obj.GetType()), updates))
{
command.AddParam("@id", obj.Id.Value);
foreach (var f in obj.Fields)
{
if (f.Dirty)
{
f.AddValue(command);
}
}
command.ExecuteNonQuery();
}
obj.Updated();
}
private void CascaseLoad(DatabaseObject source, Dictionary <Guid, DatabaseObject> loaded)
{
foreach (var cascade in source.Cascades)
{
var assingList = new List <DatabaseObject>();
foreach (var o in cascade.QueryLoad(this))
{
if (!loaded.ContainsKey(o.Id))
{
loaded.Add(o.Id, o);
CascaseLoad(o, loaded);
assingList.Add(o);
}
else
{
assingList.Add(loaded[o.Id]);
}
}
cascade.AssignLoad(assingList);
}
foreach (var field in source.Fields)
{
foreach (var cascade in field.CascadeLoad())
{
if (loaded.ContainsKey(cascade.Id))
{
cascade.AssignLoad(loaded[cascade.Id]);
}
else
{
var o = cascade.QueryLoad(this);
if (o != null && !loaded.ContainsKey(o.Id))
{
loaded.Add(o.Id, o);
CascaseLoad(o, loaded);
}
}
}
}
source.Updated();
}
private void Insert(DatabaseObject obj)
{
if (!obj.NewlyCreated)
{
throw new InvalidOperationException("Insert of object not newly created.");
}
obj.Validate();
var columns = string.Join(", ", obj.Fields.Select(f => f.ColumnName));
var variables = string.Join(", ", obj.Fields.Select(f => f.VariableName));
using (var command = Command("INSERT INTO {0} ({1}) VALUES ({2})", TableName(obj.GetType()), columns, variables))
{
foreach (var f in obj.Fields)
{
f.AddValue(command);
}
command.ExecuteNonQuery();
}
obj.Updated();
}
