示例#1
0
        public T GetByID <T>(object id) where T : new()
        {
            SchemaTable t = Schema.EnsureSchema(typeof(T));

            if (t != null)
            {
                ORMSelect s = new ORMSelect(Adp);
                s.FocalType = typeof(T);
                s.Condition = new ORMCond(t.GetPrimaryKeyColumn().Property.Name, SQRelationOperators.Equal, id);
                s.Top       = 1;
                List <T> result = Select <T>(s);
                if (result.Count > 0)
                {
                    return(result[0]);
                }
            }

            return(default(T));
        }
示例#2
0
        public virtual void Insert(object o)
        {
            if (o != null)
            {
                SchemaTable t = Schema.EnsureSchema(o.GetType());
                if (t != null)
                {
                    SQInsertQuery q = new SQInsertQuery()
                    {
                        Table    = new SQAliasableObject(t.Table.Name),
                        ReturnID = t.GetPrimaryKeyColumn() != null && t.GetPrimaryKeyColumn().Column.IsIdentity
                    };
                    PopulateSetQuery(q, o, t);
                    SQSelectResult sr = Adp.Insert(q);
                    try
                    {
                        if (q.ReturnID)
                        {
                            if (sr.Reader.Read())
                            {
                                SchemaColumn pkCol = t.GetPrimaryKeyColumn();
                                object       id    = sr.Reader.GetValue(0);
                                if (id.GetType() != pkCol.Property.PropertyType)
                                {
                                    switch (pkCol.Column.DataType)
                                    {
                                    case SQDataTypes.Int16:
                                        id = Convert.ToInt16(id);
                                        break;

                                    case SQDataTypes.Int32:
                                        id = Convert.ToInt32(id);
                                        break;

                                    case SQDataTypes.Int64:
                                        id = Convert.ToInt64(id);
                                        break;

                                    case SQDataTypes.Decimal:
                                        id = Convert.ToDecimal(id);
                                        break;
                                    }
                                }

                                if (o is IPopulateProperties)
                                {
                                    ((IPopulateProperties)o).PopulateProperty(pkCol.Property.Name, id);
                                }
                                else
                                {
                                    pkCol.Property.SetValue(o, id, null);
                                }
                            }
                        }
                    }
                    finally
                    {
                        sr.Close();
                    }
                }
                else
                {
                    throw new InvalidTypeException(o.GetType());
                }
            }
        }